Xiao Guangrong [Wed, 10 May 2017 08:32:55 +0000 (16:32 +0800)]
mc146818rtc: update periodic timer only if it is needed
Currently, the timer is updated whenever RegA or RegB is written
even if the periodic timer related configuration is not changed
This patch optimizes it slightly to make the update happen only
if its period or enable-status is changed, also later patches are
depend on this optimization
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <
20170510083259.3900-2-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Tue, 6 Jun 2017 16:00:12 +0000 (17:00 +0100)]
Merge remote-tracking branch 'remotes/xtensa/tags/
20170606-xtensa' into staging
target/xtensa fixes:
- fix read/write simcall mapping flags and return value;
- use -serial option to direct console output of sim machine to QEMU chardev;
- fix handling of unknown registers in the gdbstub.
# gpg: Signature made Tue 06 Jun 2017 11:46:05 BST
# gpg: using RSA key 0x51F9CC91F83FA044
# gpg: Good signature from "Max Filippov <filippov@cadence.com>"
# gpg: aka "Max Filippov <max.filippov@cogentembedded.com>"
# gpg: aka "Max Filippov <jcmvbkbc@gmail.com>"
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB 17D8 51F9 CC91 F83F A044
* remotes/xtensa/tags/
20170606-xtensa:
target/xtensa: handle unknown registers in gdbstub
target/xtensa: support output to chardev console
target/xtensa: fix return value of read/write simcalls
target/xtensa: fix mapping direction in read/write simcalls
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 6 Jun 2017 14:37:53 +0000 (15:37 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2017-06-06' into staging
Miscellaneous patches for 2017-06-06
# gpg: Signature made Tue 06 Jun 2017 08:30:43 BST
# gpg: using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* remotes/armbru/tags/pull-misc-2017-06-06:
monitor: fix object_del for command-line-created objects
tests: check-qom-proplist: add checks for cmdline-created objects
virtio-scsi-test: Use scsi-hd instead of legacy scsi-disk
block: Clarify documentation of BlockInfo member io-status
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 6 Jun 2017 13:30:06 +0000 (14:30 +0100)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.10-
20170606' into staging
ppc patch queue 2017-06-06
Accumulated patches for ppc targets and the pseries machine type.
The big thing in this batch is a start on a substantial cleanup of the
pseries hotplug mechanisms, which were pretty confusing. For now
these shouldn't cause substantial behavioural changes, but I am hoping
these lead to clearer code and eventually to fixes for the bugs we
have in hotplug handling, particularly when hotplug and migration are
combined.
The remaining patches are mostly bugfixes.
# gpg: Signature made Tue 06 Jun 2017 03:48:50 BST
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.10-
20170606:
spapr: Remove some non-useful properties on DRC objects
spapr: Eliminate spapr_drc_get_type_str()
spapr: Move configure-connector state into DRC
spapr: Clean up spapr_dr_connector_by_*()
spapr: Introduce DRC subclasses
spapr/drc: don't migrate DRC of cold-plugged CPUs and LMBs
spapr: Allow boot from vhost-*-scsi backends
ppc/pnv: check the return value of fdt_setprop()
spapr_nvram: Check return value from blk_getlength()
target/ppc: Fixup set_spr error in h_register_process_table
target-ppc: Fix openpic timer read register offset
spapr: Make DRC get_index and get_type methods into plain functions
spapr: Abolish DRC set_configured method
spapr: Abolish DRC get_fdt method
spapr: Move DRC RTAS calls into spapr_drc.c
migration: Mark CPU states dirty before incoming migration/loadvm
migration: remove register_savevm()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Max Filippov [Sat, 3 Jun 2017 09:11:13 +0000 (02:11 -0700)]
target/xtensa: handle unknown registers in gdbstub
Xtensa cores may have registers of types/sizes not supported by the
gdbstub accessors. Ignore writes to such registers and return zero on
read, but always return correct register size, so that gdb on the other
side is able to access all registers in the packet holding unsupported
registers in the middle. This fixes gdb interaction with cores that have
vector/custom TIE registers.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Fri, 12 May 2017 18:09:14 +0000 (11:09 -0700)]
target/xtensa: support output to chardev console
In semihosting mode QEMU allows guest to read and write host file
descriptors directly, including descriptors 0..2, a.k.a. stdin, stdout
and stderr. Sometimes it's desirable to have semihosting console
controlled by -serial option, e.g. to connect it to network.
Add semihosting console to xtensa-semi.c, open it in the 'sim' machine
in the presence of -serial option and direct stdout and stderr to it
when it's present.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Fri, 12 May 2017 19:05:23 +0000 (12:05 -0700)]
target/xtensa: fix return value of read/write simcalls
Return value of read/write simcalls is not calculated correctly in case
of operations crossing page boundary and in case of short reads/writes.
Read and write simcalls should return the size of data actually
read/written or -1 in case of error.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Fri, 12 May 2017 18:17:01 +0000 (11:17 -0700)]
target/xtensa: fix mapping direction in read/write simcalls
Read and write simcalls map physical memory to access I/O buffers, but
'read' simcall need to map it for writing and 'write' simcall need to
map it for reading, i.e. the opposite of what they do now. Fix that.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Peter Maydell [Tue, 6 Jun 2017 09:00:34 +0000 (10:00 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-and-machine-pull-request' into staging
x86 and machine queue, 2017-06-05
# gpg: Signature made Mon 05 Jun 2017 19:58:01 BST
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-and-machine-pull-request:
scripts: Test script to look for -device crashes
qemu.py: Add QEMUMachine.exitcode() method
qemu.py: Don't set _popen=None on error/shutdown
spapr: cleanup spapr_fixup_cpu_numa_dt() usage
numa: move numa_node from CPUState into target specific classes
numa: make hmp 'info numa' fetch numa nodes from qmp_query_cpus() result
numa: make sure that all cpus have has_node_id set if numa is enabled
numa: move default mapping init to machine
numa: consolidate cpu_preplug fixups/checks for pc/arm/spapr
pc: Use "min-[x]level" on compat_props
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Michael Roth [Sat, 3 Jun 2017 23:13:32 +0000 (18:13 -0500)]
monitor: fix object_del for command-line-created objects
Currently objects specified on the command-line are only partially
cleaned up when 'object_del' is issued in either HMP or QMP: the
object itself is fully finalized, but the QemuOpts are not removed.
This results in the following behavior:
x86_64-softmmu/qemu-system-x86_64 -monitor stdio \
-object memory-backend-ram,id=ram1,size=256M
QEMU 2.7.91 monitor - type 'help' for more information
(qemu) object_del ram1
(qemu) object_del ram1
object 'ram1' not found
(qemu) object_add memory-backend-ram,id=ram1,size=256M
Duplicate ID 'ram1' for object
Try "help object_add" for more information
which can be an issue for use-cases like memory hotplug.
This happens on the HMP side because hmp_object_add() attempts to
create a temporary QemuOpts entry with ID 'ram1', which ends up
conflicting with the command-line-created entry, since it was never
cleaned up during the previous hmp_object_del() call.
We address this by adding a check in user_creatable_del(), which
is called by both qmp_object_del() and hmp_object_del() to handle
the actual object cleanup, to determine whether an option group entry
matching the object's ID is present and removing it if it is.
Note that qmp_object_add() never attempts to create a temporary
QemuOpts entry, so it does not encounter the duplicate ID error,
which is why this isn't generally visible in libvirt.
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Daniel Berrange <berrange@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
1496531612-22166-3-git-send-email-mdroth@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Michael Roth [Sat, 3 Jun 2017 23:13:31 +0000 (18:13 -0500)]
tests: check-qom-proplist: add checks for cmdline-created objects
check-qom-proplist originally added tests for verifying that
object-creation helpers object_new_with_{props,propv} behaved in
similar fashion to the "traditional" method involving setting each
individual property separately after object creation rather than
via a single call.
Another similar "helper" for creating Objects exists in the form of
objects specified via -object command-line parameters. By that
rationale, we extend check-qom-proplist to include similar checks
for command-line-created objects by employing the same
qemu_opts_parse()-based parsing the vl.c employs.
This parser has a side-effect of parsing the object's options into
a QemuOpt structure and registering this in the global QemuOptsList
using the Object's ID. This can conflict with future Object instances
that attempt to use the same ID if we don't ensure this is cleaned
up as part of Object finalization, so we include a FIXME stub to test
for this case, which will then be resolved in a subsequent patch.
Suggested-by: Daniel Berrange <berrange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Daniel Berrange <berrange@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
1496531612-22166-2-git-send-email-mdroth@linux.vnet.ibm.com>
[Comment formatting tidied up]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Markus Armbruster [Tue, 9 May 2017 10:56:02 +0000 (12:56 +0200)]
virtio-scsi-test: Use scsi-hd instead of legacy scsi-disk
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
1494327362-30727-3-git-send-email-armbru@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Markus Armbruster [Tue, 9 May 2017 10:56:01 +0000 (12:56 +0200)]
block: Clarify documentation of BlockInfo member io-status
Say "SCSI except scsi-generic" instead of "scsi-disk", because
scsi-disk could mean either scsi-disk.c (which is correct) or device
model scsi-disk (which would be incorrect).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
1494327362-30727-2-git-send-email-armbru@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
David Gibson [Sun, 4 Jun 2017 10:28:04 +0000 (20:28 +1000)]
spapr: Remove some non-useful properties on DRC objects
* 'connector_type' is easily derived from the 'index' property, so there's
no point to it (it's also implicit in the QOM type of the DRC)
* 'isolation-state', 'indicator-state' and 'allocation-state' are
part of the transaction between qemu and guest during PAPR hotplug
operations, and outside tools really have no business looking at it
(especially not changing, and these were RW properties)
* 'entity-sense' is basically just a weird PAPR encoding of whether there
is a device connected to this DRC
Strictly speaking removing these properties is breaking the qemu interface.
However, I'm pretty sure no management tools have ever used these. For
debugging there are better alternatives. Therefore, I think removing these
broken interfaces is the better option.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
David Gibson [Sun, 4 Jun 2017 10:26:54 +0000 (20:26 +1000)]
spapr: Eliminate spapr_drc_get_type_str()
This function was used in generating the device tree. However, now that
we have different QOM types for different DRC types we can easily store
the information we need in the class structure and avoid this specialized
lookup function.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
David Gibson [Sun, 4 Jun 2017 10:26:25 +0000 (20:26 +1000)]
spapr: Move configure-connector state into DRC
Currently the sPAPRMachineState contains a list of sPAPRConfigureConnector
structures which store intermediate state for the ibm,configure-connector
RTAS call.
This was an attempt to separate this state from the core of the DRC state.
However the configure connector process is intimately tied to the DRC
model, so there's really no point trying to have two levels of interface
here.
Moving the configure-connector state into its corresponding DRC allows
removal of a number of helpers for maintaining the anciliary list.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
David Gibson [Sun, 4 Jun 2017 10:26:03 +0000 (20:26 +1000)]
spapr: Clean up spapr_dr_connector_by_*()
* Change names to something less ludicrously verbose
* Now that we have QOM subclasses for the different DRC types, use a QOM
typename instead of a PAPR type value parameter
The latter allows removal of the get_type_shift() helper.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
David Gibson [Sun, 4 Jun 2017 10:25:17 +0000 (20:25 +1000)]
spapr: Introduce DRC subclasses
Currently we only have a single QOM type for all DRCs, but lots of
places where we switch behaviour based on the DRC's PAPR defined type.
This is a poor use of our existing type system.
So, instead create QOM subclasses for each PAPR defined DRC type. We
also introduce intermediate subclasses for physical and logical DRCs,
a division which will be useful later on.
Instead of being stored in the DRC object itself, the PAPR type is now
stored in the class structure. There are still many places where we
switch directly on the PAPR type value, but this at least provides the
basis to start to remove those.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Greg Kurz [Fri, 2 Jun 2017 10:09:35 +0000 (12:09 +0200)]
spapr/drc: don't migrate DRC of cold-plugged CPUs and LMBs
As explained in commit
5c0139a8c2f0 ("spapr: fix default DRC state for
coldplugged LMBs"), guests expect cold-plugged LMBs to be pre-allocated
and unisolated. The same goes for cold-plugged CPUs.
While here, let's convert g_assert(false) to the better self documenting
g_assert_not_reached().
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Felipe Franciosi [Mon, 5 Jun 2017 15:55:18 +0000 (16:55 +0100)]
spapr: Allow boot from vhost-*-scsi backends
The current implementation of spapr_get_fw_dev_path() doesn't take into
consideration vhost-*-scsi devices. This makes said devices unbootable
on PPC as SLOF is unable to work out the path to scan boot disks.
This makes VMs bootable on spapr when using vhost-*-scsi by implementing
a disk path for VHostSCSICommon (which currently includes both
vhost-user-scsi and vhost-scsi).
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Signed-off-by: Mike Cui <cui@nutanix.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Cédric Le Goater [Mon, 5 Jun 2017 15:44:21 +0000 (17:44 +0200)]
ppc/pnv: check the return value of fdt_setprop()
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[dwg: Correct typo in commit message]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Peter Maydell [Mon, 5 Jun 2017 15:14:17 +0000 (16:14 +0100)]
spapr_nvram: Check return value from blk_getlength()
The blk_getlength() function can return an error value if the
image size cannot be determined. Check for this rather than
ploughing on and trying to g_malloc0() a negative number.
(Spotted by Coverity, CID
1288484.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Suraj Jitindar Singh [Mon, 5 Jun 2017 00:49:51 +0000 (10:49 +1000)]
target/ppc: Fixup set_spr error in h_register_process_table
set_spr is used in the function h_register_process_table() to update the
LPCR_GTSE and LPCR_UPRT values based on the flags passed by the guest.
The set_spr function takes the last two arguments mask and value used to
mask and set the value of the spr respectively.
The current call site passes these arguments in the wrong order and thus
bot GTSE and UPRT will be set irrespective, which is obviously
incorrect.
Rearrange the function call so that these arguments are passed in the
correct order and the correct behaviour is exhibited.
It is worth noting that this wasn't detected earlier since these were
always both set in all cases where this H_CALL was made.
Fixes: 6de833070ca2 ("target/ppc: Set UPRT and GTSE on all cpus in H_REGISTER_PROCESS_TABLE")
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Aaron Larson [Fri, 2 Jun 2017 11:32:59 +0000 (04:32 -0700)]
target-ppc: Fix openpic timer read register offset
openpic_tmr_read() is incorrectly computing register offset of the
TCCR, TBCR, TVPR, and TDR registers when accessing the open pic timer
registers. Specifically the offset of timer registers for
openpic_tmr_read() is not accounting for the timer frequency reporting
register (TFFR) which is the first register in the "tmr" memory
region.
openpic_tmr_write() *is* correctly computing the offset by adding
0x10f0 to the address prior to computing the register index. This
patch instead subtracts 0x10 in both the read and write routines and
eliminates some other gratuitous differences between the functions.
Signed-off-by: Aaron Larson <alarson@ddci.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson [Fri, 2 Jun 2017 03:49:20 +0000 (13:49 +1000)]
spapr: Make DRC get_index and get_type methods into plain functions
These two methods only have one implementation, and the spec they're
implementing means any other implementation is unlikely, verging on
impossible.
So replace them with simple functions.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
David Gibson [Fri, 2 Jun 2017 03:36:10 +0000 (13:36 +1000)]
spapr: Abolish DRC set_configured method
DRConnectorClass has a set_configured method, however:
* There is only one implementation, and only ever likely to be one
* There's exactly one caller, and that's (now) local
* The implementation is very straightforward
So abolish the method entirely, and just open-code what we need.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
David Gibson [Thu, 1 Jun 2017 00:36:24 +0000 (10:36 +1000)]
spapr: Abolish DRC get_fdt method
The DRConnectorClass includes a get_fdt method. However
* There's only one implementation, and there's only likely to ever be one
* Both callers are local to spapr_drc
* Each caller only uses one half of the actual implementation
So abolish get_fdt() entirely, and just open-code what we need.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
David Gibson [Thu, 1 Jun 2017 00:30:00 +0000 (10:30 +1000)]
spapr: Move DRC RTAS calls into spapr_drc.c
Currently implementations of the RTAS calls related to DRCs are in
spapr_rtas.c. They belong better in spapr_drc.c - that way they're closer
to related code, and we'll be able to make some more things local.
spapr_rtas.c was intended to contain the RTAS infrastructure and core calls
that don't belong anywhere else, not every RTAS implementation.
Code motion only.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Daniel Barboza <danielhb@linux.vnet.ibm.com>
David Gibson [Fri, 26 May 2017 04:46:28 +0000 (14:46 +1000)]
migration: Mark CPU states dirty before incoming migration/loadvm
As a rule, CPU internal state should never be updated when
!cpu->kvm_vcpu_dirty (or the HAX equivalent). If that is done, then
subsequent calls to cpu_synchronize_state() - usually safe and idempotent -
will clobber state.
However, we routinely do this during a loadvm or incoming migration.
Usually this is called shortly after a reset, which will clear all the cpu
dirty flags with cpu_synchronize_all_post_reset(). Nothing is expected
to set the dirty flags again before the cpu state is loaded from the
incoming stream.
This means that it isn't safe to call cpu_synchronize_state() from a
post_load handler, which is non-obvious and potentially inconvenient.
We could cpu_synchronize_all_state() before the loadvm, but that would be
overkill since a) we expect the state to already be synchronized from the
reset and b) we expect to completely rewrite the state with a call to
cpu_synchronize_all_post_init() at the end of qemu_loadvm_state().
To clear this up, this patch introduces cpu_synchronize_pre_loadvm() and
associated helpers, which simply marks the cpu state as dirty without
actually changing anything. i.e. it says we want to discard any existing
KVM (or HAX) state and replace it with what we're going to load.
Cc: Juan Quintela <quintela@redhat.com>
Cc: Dave Gilbert <dgilbert@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Laurent Vivier [Wed, 24 May 2017 12:10:48 +0000 (14:10 +0200)]
migration: remove register_savevm()
We can replace the four remaining calls of register_savevm() by
calls to register_savevm_live(). So we can remove the function and
as we don't allocate anymore the ops pointer with g_new0()
we don't have to free it then.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Eduardo Habkost [Fri, 26 May 2017 18:12:00 +0000 (15:12 -0300)]
scripts: Test script to look for -device crashes
Test code to check if we can crash QEMU using -device. It will
test all accel/machine/device combinations by default, which may
take a few hours (it's more than 90k test cases). There's a "-r"
option that makes it test a random sample of combinations.
The scripts contains a whitelist for: 1) known error messages
that make QEMU exit cleanly; 2) known QEMU crashes.
This is the behavior when the script finds a failure:
* Known clean (exitcode=1) errors generate DEBUG messages
(hidden by default)
* Unknown clean (exitcode=1) errors will generate INFO messages
(visible by default)
* Known crashes generate error messages, but are not fatal
(unless --strict mode is used)
* Unknown crashes generate fatal error messages
Having an updated whitelist of known clean errors is useful to make the
script less verbose and run faster when in --quick mode, but the
whitelist doesn't need to be always up to date.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
20170526181200.17227-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Fri, 26 May 2017 18:11:59 +0000 (15:11 -0300)]
qemu.py: Add QEMUMachine.exitcode() method
Allow the exit code of QEMU to be queried by scripts.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
20170526181200.17227-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Fri, 26 May 2017 18:11:58 +0000 (15:11 -0300)]
qemu.py: Don't set _popen=None on error/shutdown
Keep the Popen object around to we can query its exit code later.
To keep the existing 'self._popen is None' checks working, add a
is_running() method, that will check if the process is still running.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
20170526181200.17227-2-ehabkost@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Tue, 30 May 2017 16:24:01 +0000 (18:24 +0200)]
spapr: cleanup spapr_fixup_cpu_numa_dt() usage
even though spapr_fixup_cpu_numa_dt() has no effect on FDT
if numa is disabled, don't call it uselessly. It makes it
obvious at call sites that function is needed only when numa
is enabled.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <
1496161442-96665-7-git-send-email-imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Tue, 30 May 2017 16:24:00 +0000 (18:24 +0200)]
numa: move numa_node from CPUState into target specific classes
Move vcpu's associated numa_node field out of generic CPUState
into inherited classes that actually care about cpu<->numa mapping,
i.e: ARMCPU, PowerPCCPU, X86CPU.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <
1496161442-96665-6-git-send-email-imammedo@redhat.com>
[ehabkost: s/CPU is belonging to/CPU belongs to/ on comments]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Tue, 30 May 2017 16:23:59 +0000 (18:23 +0200)]
numa: make hmp 'info numa' fetch numa nodes from qmp_query_cpus() result
HMP command 'info numa' is the last external user that access
CPUState::numa_node field directly. In order to move it to CPU
classes that actually use it, eliminate direct access and use
an alternative approach by using result of qmp_query_cpus(),
which provides topology properties CPU threads are associated
with (including node-id).
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <
1496161442-96665-5-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Tue, 30 May 2017 16:23:58 +0000 (18:23 +0200)]
numa: make sure that all cpus have has_node_id set if numa is enabled
It fixes/add missing _PXM object for non mapped CPU (x86)
and missing fdt node (virt-arm).
It ensures that possible_cpus contains complete mapping if
numa is enabled by the time machine_init() is executed.
As result non completely mapped CPUs:
1) appear in ACPI/fdt blobs
2) QMP query-hotpluggable-cpus command shows bound nodes for such CPUs
3) allows to drop checks for has_node_id in numa only code,
reducing number of invariants incomplete mapping could produce
4) moves fixup/implicit node init from runtime numa_cpu_pre_plug()
(when CPU object is created) to machine_numa_finish_init() which
helps to fix [1, 2] and make possible_cpus complete source
of numa mapping available even before CPUs are created.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <
1496161442-96665-4-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Tue, 30 May 2017 16:23:57 +0000 (18:23 +0200)]
numa: move default mapping init to machine
there is no need use cpu_index_to_instance_props() for setting
default cpu -> node mapping. Generic machine code can do it
without cpu_index by just enabling already preset defaults
in possible_cpus.
PS:
as bonus it makes one less user of cpu_index_to_instance_props()
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <
1496161442-96665-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Tue, 30 May 2017 16:23:56 +0000 (18:23 +0200)]
numa: consolidate cpu_preplug fixups/checks for pc/arm/spapr
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <
1496161442-96665-2-git-send-email-imammedo@redhat.com>
[ehabkost: Fix indentation]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Mon, 5 Jun 2017 15:19:27 +0000 (12:19 -0300)]
pc: Use "min-[x]level" on compat_props
Since the automatic cpuid-level code was introduced in commit
c39c0edf9bb3b968ba95484465a50c7b19f4aa3a ("target-i386: Automatically
set level/xlevel/xlevel2 when needed"), the CPU model tables just define
the default CPUID level code (set using "min-level"). Setting
"[x]level" forces CPUID level to a specific value and disable the
automatic-level logic.
But the PC compat code was not updated and the existing "[x]level"
compat properties broke compatibility for people using features that
triggered the auto-level code. To keep previous behavior, we should set
"min-[x]level" instead of "[x]level" on compat_props.
This was not a problem for most cases, because old machine-types don't
have full-cpuid-auto-level enabled. The only common use case it broke
was the CPUID[7] auto-level code, that was already enabled since the
first CPUID[7] feature was introduced (in QEMU 1.4.0).
This causes the regression reported at:
https://bugzilla.redhat.com/show_bug.cgi?id=
1454641
Change the PC compat code to use "min-[x]level" instead of "[x]level" on
compat_props, and add new test cases to ensure we don't break this
again.
Reported-by: "Guo, Zhiyi" <zhguo@redhat.com>
Fixes: c39c0edf9bb ("target-i386: Automatically set level/xlevel/xlevel2 when needed")
Cc: qemu-stable@nongnu.org
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Peter Maydell [Mon, 5 Jun 2017 17:03:43 +0000 (18:03 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-
20170605' into staging
Queued TCG patches
# gpg: Signature made Mon 05 Jun 2017 17:48:42 BST
# gpg: using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B
* remotes/rth/tags/pull-tcg-
20170605: (26 commits)
target/alpha: Use goto_tb for fallthru between TBs
target/alpha: Implement WTINT inline
target/mips: optimize indirect branches
target/mips: optimize cross-page direct jumps in softmmu
target/aarch64: optimize indirect branches
target/aarch64: optimize cross-page direct jumps in softmmu
target/hppa: Use tcg_gen_lookup_and_goto_ptr
target/s390: Use tcg_gen_lookup_and_goto_ptr
tcg/mips: implement goto_ptr
tcg/arm: Implement goto_ptr
tcg/arm: Clarify tcg_out_bx for arm4 host
tcg/s390: Implement goto_ptr
tcg/sparc: Implement goto_ptr
tcg/aarch64: Implement goto_ptr
tcg/ppc: Implement goto_ptr
tb-hash: improve tb_jmp_cache hash function in user mode
target/i386: optimize indirect branches
target/i386: optimize cross-page direct jumps in softmmu
target/i386: introduce gen_jr helper to generate lookup_and_goto_ptr
target/arm: optimize indirect branches
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Thu, 25 May 2017 02:17:51 +0000 (19:17 -0700)]
target/alpha: Use goto_tb for fallthru between TBs
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Mon, 8 May 2017 17:23:29 +0000 (10:23 -0700)]
target/alpha: Implement WTINT inline
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Sun, 30 Apr 2017 14:52:54 +0000 (16:52 +0200)]
target/mips: optimize indirect branches
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <
20170430145254.25616-4-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Sun, 30 Apr 2017 14:52:53 +0000 (16:52 +0200)]
target/mips: optimize cross-page direct jumps in softmmu
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <
20170430145254.25616-3-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Fri, 28 Apr 2017 18:59:23 +0000 (14:59 -0400)]
target/aarch64: optimize indirect branches
Measurements:
[Baseline performance is that before applying this and the previous commit]
- NBench, aarch64-softmmu. Host: Intel i7-4790K @ 4.00GHz
1.7x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| cross |
1.6x +cross+jr.................................................####...................................................+-+
| #++# |
| # # |
1.5x +-+...................................................*****..#...................................................+-+
| *+++* # |
| * * # |
1.4x +-+...................................................*...*..#...................................................+-+
| * * # |
| ##### * * # |
1.3x +-+................................****+++#...........*...*..#...................................................+-+
| *++* # * * # |
| * * # * * # |
1.2x +-+................................*..*...#...........*...*..#...................................................+-+
| * * # * * # |
| #### * * # * * # |
1.1x +-+.......................+++#..#..*..*...#...........*...*..#...................................................+-+
| **** # * * # * * # ****#### |
| * * # * * # * * # ****### +++#### ****### * * # |
1x +-++-++++++-++++****###++-*++*++#++*++*+-+#++****+++++*+++*++#++*++*-+#++*****++#++****###-++*++*-+#++*+-*+++#+-++-+
| *****### * * # * * # * * # *++*### * * # * * # * * # * *++# * * # * * # |
| * *++# * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # |
0.9x +-+---*****###--****###---****###--****####--****###--*****###--****###--*****###--****###---****###--****####---+-+
ASSIGNMENT BITFIELD FOURFP EMULATION HUFFMAN LU DECOMPOSITIONNEURAL NUMERIC SORSTRING SORT hmean
png: http://imgur.com/qO9ubtk
NB. cross here represents the previous commit.
- SPECint06 (test set), aarch64-linux-user. Host: Intel i7-4790K @ 4.00GHz
1.5x +-+--------------------------------------------------------------------------------------------------------------+-+
| ***** |
| *+++* jr |
| * * |
1.4x +-+.....................................................................*...*.....................+++............+-+
| * * | |
| ***** * * | |
| * * * * ***** |
1.3x +-+....................................*...*............................*...*....................*.|.*...........+-+
| +++ * * * * * | * |
| ***** * * * * *+++* |
| * * * * * * * * |
1.2x +-+....................*...*...........*...*............................*...*...........*****....*...*...........+-+
| ***** * * * * * * * * * * +++ |
| * * * * * * * * * * * * ***** |
| * * * * ***** * * * * * * * * * * |
1.1x +-+...*...*............*...*...*...*...*...*............................*...*....+++....*...*....*...*...*...*...+-+
| * * * * * * * * * * ***** * * * * * * |
| * * * * * * * * ***** * * * * * * * * * * |
| * * ***** * * * * * * * * ****** * * * * * * * * * * |
1x +-++-+*+++*-++*+++*++++*+-+*+++*-++*+++*-++*+++*+++*++-*++++*-++*****+++*++-*+++*++-*+++*+-+*++++*+++*++-*+++*+-++-+
| * * * * * * * * * * * * * * *+++* * * * * * * * * * * |
| * * * * * * * * * * * * * * * * * * * * * * * * * * |
| * * * * * * * * * * * * * * * * * * * * * * * * * * |
0.9x +-+---*****---*****----*****---*****---*****---*****---******---*****---*****---*****---*****----*****---*****---+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/3Dp4vvq
- SPECint06 (train set), aarch64-linux-user. Host: Intel i7-4790K @ 4.00GHz
1.7x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| jr |
1.6x +-+...............................................................................................+++............+-+
| ***** |
| *+++* |
| * * |
1.5x +-+..............................................................................................*...*...........+-+
| +++ * * |
| ***** * * |
1.4x +-+.....................................................................*+++*....................*...*...........+-+
| * * * * |
| ***** * * * * |
| * * * * ***** * * |
1.3x +-+....................................*...*............................*...*...*...*............*...*...........+-+
| +++ * * * * * * * * |
| ***** * * * * * * ***** * * |
1.2x +-+....................*...*...........*...*............................*...*...*...*...*+++*....*...*...*****...+-+
| * * * * * * * * * * * * *+++* |
| ***** * * ***** * * * * * * * * * * * * |
| * * * * *+++* * * * * * * * * * * * * |
1.1x +-+...*...*............*...*...*...*...*...*............................*...*...*...*...*...*....*...*...*...*...+-+
| * * ***** * * * * * * ***** * * * * * * * * * * |
| * * * * * * * * * * +++ ****** *+++* * * * * * * * * * * |
1x +-+---*****---*****----*****---*****---*****---*****---******---*****---*****---*****---*****----*****---*****---+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/vRrdc9j
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Fri, 28 Apr 2017 18:57:41 +0000 (14:57 -0400)]
target/aarch64: optimize cross-page direct jumps in softmmu
Perf numbers in next commit's log.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Sun, 30 Apr 2017 11:38:18 +0000 (13:38 +0200)]
target/hppa: Use tcg_gen_lookup_and_goto_ptr
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Sun, 30 Apr 2017 11:32:10 +0000 (13:32 +0200)]
target/s390: Use tcg_gen_lookup_and_goto_ptr
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Aurelien Jarno [Sun, 30 Apr 2017 14:52:52 +0000 (16:52 +0200)]
tcg/mips: implement goto_ptr
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <
20170430145254.25616-2-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Fri, 28 Apr 2017 07:49:45 +0000 (09:49 +0200)]
tcg/arm: Implement goto_ptr
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Fri, 28 Apr 2017 07:45:57 +0000 (09:45 +0200)]
tcg/arm: Clarify tcg_out_bx for arm4 host
In theory this would re-enable usage of QEMU on an armv4 host.
Whether this is worthwhile is debatable -- we've been unconditionally
issuing the armv5t BX instruction in the prologue since 2011 without
complaint. Possibly we should simply require an armv6 host.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 22:40:59 +0000 (18:40 -0400)]
tcg/s390: Implement goto_ptr
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 17:46:12 +0000 (10:46 -0700)]
tcg/sparc: Implement goto_ptr
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 15:42:58 +0000 (08:42 -0700)]
tcg/aarch64: Implement goto_ptr
Measurements:
SPECint06 (test set), x86_64-linux-user. Host: APM 64-bit ARMv8 (Atlas/A57) @ 2.4 GHz
1.45x +-+-------------------------------------------------------------------------------------------------------------+-+
| ***** |
| +++ * * +goto-ptr |
1.4x +-+...*****............................*...*....................................................................+-+
| *+++* * * +++ |
1.35x +-+...*...*............................*...*...........................*****....................................+-+
| * * * * *+++* |
| * * * * * * |
1.3x +-+...*...*............................*...*...........................*...*....................................+-+
| * * * * * * |
| * * * * * * ***** |
1.25x +-+...*...*...........*****............*...*...........................*...*............*****...*...*...........+-+
| * * * * * * * * *+++* * * |
1.2x +-+...*...*...........*...*............*...*...........................*...*............*...*...*...*...........+-+
| * * * * * * * * * * * * |
| * * * * * * * * * * * * ***** |
1.15x +-+...*...*...........*...*............*...*...........................*...*............*...*...*...*...*...*...+-+
| * * * * * * * * +++ * * * * * * |
| * * * * * * * * ***** * * * * * * |
1.1x +-+...*...*...........*...*....*****...*...*...*****...................*...*...*...*....*...*...*...*...*...*...+-+
| * * * * * * * * * * * * * * * * * * * * |
1.05x +-+...*...*...........*...*....*...*...*...*...*...*...................*...*...*...*....*...*...*...*...*...*...+-+
| * * ***** * * * * * * * * * * * * * * * * * * |
| * * * * * * * * * * * * ***** ***** * * * * * * * * * * |
1x +-+---*****---*****---*****----*****---*****---*****---*****---*****---*****---*****----*****---*****---*****---+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjenxalancbmk hmean
png: http://imgur.com/en9HE8L
Tested-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 11:50:31 +0000 (11:50 +0000)]
tcg/ppc: Implement goto_ptr
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:24 +0000 (23:29 -0400)]
tb-hash: improve tb_jmp_cache hash function in user mode
Optimizations to cross-page chaining and indirect branches make
performance more sensitive to the hit rate of tb_jmp_cache.
The constraint of reserving some bits for the page number
lowers the achievable quality of the hashing function.
However, user-mode does not have this requirement. Thus,
with this change we use for user-mode a hashing function that
is both faster and of better quality than the previous one.
Measurements:
Note: baseline (i.e. speedup == 1x) is QEMU v2.9.0.
- SPECint06 (test set), x86_64-linux-user. Host: Intel i7-6700K @ 4.00GHz
2.2x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| jr |
2x +jr+multhash +....................................................+++++...................................+-+
| jr+hash |$$$ |
| |$+$ |
| ### $ |
1.8x +-+......................................................................#|#.$...................................+-+
| ++#+# $ |
| |# # $ |
1.6x +-+....................................................................***.#.$....................++$$$..........+-+
| $$$ *+* # $ |$+$ |
| ++$$$ ### $ * * # $ +++|$ $ |
| ++###+$ # # $ * * # $ ### ****## $ |
1.4x +-+...................***+#.$.........***.#.$..........................*.*.#.$...........#+#$$.*++*|#.$..........+-+
| *+* # $ * * # $ * * # $ # # $ * *+# $ |
| * * # $ +++++ * * # $ * * # $ *** # $ * * # $ ###$$ |
1.2x +-+...................*.*.#.$.***##$$.*.*.#.$..........................*.*.#.$.........*.*.#.$.*..*.#.$.***+#+$..+-+
| * * # $ *+* # $ * * # $ +++ * * # $ ++###$$ * * # $ * * # $ * * # $ |
| ***##$$ * * # $ * * # $ * * # $ ***##$$ ++### * * # $ *** #+$ * * # $ * * # $ * * # $ |
| *+*+#+$ ***##$$$ * * # $ * * # $ * * # $ *+* # $ ++####$$ ***+# * * # $ * * # $ * * # $ * * # $ * * # $ |
1x +-++-*+*+#+$+*+*+#-+$+*+*-#+$+*+*+#+$+*+*+#+$+*-*+#+$+***++#+$+*+*+#$$+*+*+#+$+*+*+#+$+*+*-#+$+*+-*+#+$+*+*+#+$-++-+
| * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ |
| * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ * * # $ |
0.8x +-+--***##$$-***##$$$-***##$$-***##$$-***##$$-***##$$-***###$$-***##$$-***##$$-***##$$-***##$$-****##$$-***##$$--+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/4UXTrEc
Here I also tried the hash function suggested by Paolo ("multhash"):
return ((uint64_t) (pc *
2654435761) >> 32) & (TB_JMP_CACHE_SIZE - 1);
As you can see it is just as good as the other new function ("hash"),
which is what I ended up going with.
- SPECint06 (train set), x86_64-linux-user. Host: Intel i7-6700K @ 4.00GHz
2.6x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| jr ### |
2.4x +jr+hash...........................................................................................#.#...........+-+
| # # |
| # # |
2.2x +-+................................................................................................#.#...........+-+
| # # |
| # # |
2x +-+................................................................................................#.#...........+-+
| **** # |
| * * # |
1.8x +-+.............................................................................................*..*.#...........+-+
| +++ * * # |
| #### #### * * # |
1.6x +-+......................................####.............................#..#.****..#..........*..*.#...........+-+
| +++ #++# **** # * * # #### * * # |
| ### # # * * # * * # # # * * # |
1.4x +-+...................****+#..........****..#..........................*..*..#.*..*..#....#..#..*..*.#...........+-+
| *++* # * * # * * # * * # *** # * * # #### |
| * * # #### * * # * * # * * # * * # * * # **** # |
1.2x +-+...................*..*.#..****++#.*..*..#..........................*..*..#.*..*..#..*.*..#..*..*.#..*..*..#..+-+
| ****### * * # * * # * * # * * # * * # * * # * * # * * # |
| * * # ***### * * # * * # * * # ****## * * # * * # * * # * * # * * # |
1x +-+--****###--***###--****##--****###-****###--***###--***###--****##--****###-****###--***###--****##--****###--+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/ArCbHqo
- NBench, x86_64-linux-user. Host: Intel i7-6700K @ 4.00GHz
1.12x +-+-------------------------------------------------------------------------------------------------------------+-+
| |
| jr +++ |
1.1x +jr+hash...........................................................####.........................................+-+
| +++#| # |
| | #++# |
1.08x +-+................................+++................+++.+++..*****..#.........................................+-+
| | +++ | | * | * # |
| | | | | *+++* # |
1.06x +-+................................****###.............|...|...*...*..#.........................+++.............+-+
| *| * |# ****### * * # | |
| *| *++# *| * |# * * # #### |
1.04x +-+................................*++*..#............*|.*.|#..*...*..#........................#.|#.............+-+
| * * # *++*++# * * # +++#++# |
| * * # * * # * * # | # # +++#### |
1.02x +-+................................*..*..#......+++...*..*..#..*...*..#.....................****..#..*****++#...+-+
| +++ * * # +++ | * * # * * # +++ *| * # *+++* # |
| +++ | +++ +++ ++++++ * * # *****### * * # * * # | +++ ++++++ *++* # * * # |
1x +-++-+++++####++****###++++-+####+-*++*++#-+*+++*-+#++*++*++#++*+-+*++#+-+++####-+*****###++*++*++#++*+-+*++#+-++-+
| *****| # *++* |# *****| # * * # * *++# * * # * * # **** |# * * # * * # * * # |
| * | *| # * *++# * | *++# * * # * * # * * # * * # *| *++# * * # * * # * * # |
0.98x +-+...*.|.*++#..*..*..#..*+++*..#..*..*..#..*...*..#..*..*..#..*...*..#..*++*..#..*...*..#..*..*..#..*...*..#...+-+
| *+++* # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # |
| * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # |
0.96x +-+---*****###--****###--*****###--****###--*****###--****###--*****###--****###--*****###--****###--*****###---+-+
ASSIGNMENT BITFIELD FOURFP EMULATION HUFFMAN LU DECOMPOSITIONEURAL NNUMERIC SOSTRING SORT hmean
png: http://imgur.com/ZXFX0hJ
- NBench, arm-linux-user. Host: Intel i7-4790K @ 4.00GHz
1.3x +-+-------------------------------------------------------------------------------------------------------------+-+
| #### |
| jr # # +++ |
1.25x +jr+hash.....................#..#...........................................####................................+-+
| # # # # |
| # # # # |
1.2x +-+..........................#..#...........................................#..#................................+-+
| # # # # |
| # # # # |
1.15x +-+..........................#..#...........................................#..#................................+-+
| # # #### # # |
| # # # # # # |
1.1x +-+..........................#..#..................................#..#.....#..#................................+-+
| # # # # # # +++ |
| # # #### # # # # #### |
1.05x +-+..........................#..#...............#..#.....####......#..#.....#..#.........................#..#...+-+
| # # # # # # # # # # +++ # # |
| +++ ***** # #### ***** # # # +++# # **** # ****### # # |
1x +-++-+*****###++****+++++*+-+*++#+-****++#-+*+++*-+#+++++#++#++*****++#+-*++*++#-+*****-++++*++*++#++*****++#+-++-+
| * * # * * | * * # * * # * * # **** # * * # * * # * *### * *++# * * # |
| * * # * *### * * # * * # * * # * * # * * # * * # * * # * * # * * # |
0.95x +-+...*...*..#..*..*.|#..*...*..#..*..*..#..*...*..#..*..*..#..*...*..#..*..*..#..*...*..#..*..*..#..*...*..#...+-+
| * * # * * |# * * # * * # * * # * * # * * # * * # * * # * * # * * # |
| * * # * * |# * * # * * # * * # * * # * * # * * # * * # * * # * * # |
0.9x +-+---*****###--****###--*****###--****###--*****###--****###--*****###--****###--*****###--****###--*****###---+-+
ASSIGNMENT BITFIELD FOURFP EMULATION HUFFMAN LU DECOMPOSITIONEURAL NNUMERIC SOSTRING SORT hmean
png: http://imgur.com/FfD27ey
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-12-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:23 +0000 (23:29 -0400)]
target/i386: optimize indirect branches
Speed up indirect branches by jumping to the target if it is valid.
Softmmu measurements (see later commit for user-mode numbers):
Note: baseline (i.e. speedup == 1x) is QEMU v2.9.0.
- SPECint06 (test set), x86_64-softmmu (Ubuntu 16.04 guest). Host: Intel i7-4790K @ 4.00GHz
2.4x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| cross |
2.2x +cross+jr..........................................................................+++...........................+-+
| | |
| +++ | |
2x +-+..............................................................................|..|............................+-+
| | | |
| | | |
1.8x +-+..............................................................................|####...........................+-+
| |# |# |
| **** |# |
1.6x +-+............................................................................*.|*.|#...........................+-+
| * |* |# |
| * |* |# |
1.4x +-+.......................................................................+++..*.|*.|#...........................+-+
| ++++++ #### * |*++# +++ |
| +++ | | #++# *++* # +++ | |
1.2x +-+......................###.....####....+++............|..|...........****..#.*..*..#....####...|.###.....####..+-+
| +++ **** # **** # #### ***### *++* # * * # #++# ****|# +++#++# |
| ****### +++ *++* # *++* # ++# # #### *|* |# +++ * * # * * # *** # *| *|# **** # |
1x +-++-*++*++#++***###++*++*+#++*+-*++#+****++#++***++#+-*+*++#-+****##++*++*-+#+*++*-+#++*+*++#++*-+*+#++*++*++#-++-+
| * * # * * # * * # * * # * * # * * # *|* |# *++* # * * # * * # * * # * * # * * # |
| * * # * * # * * # * * # * * # * * # *+*++# * * # * * # * * # * * # * * # * * # |
0.8x +-+--****###--***###--****##--****###-****###--***###--***###--****##--****###-****###--***###--****##--****###--+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/DU36YFU
NB. 'cross' represents the previous commit.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-11-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:22 +0000 (23:29 -0400)]
target/i386: optimize cross-page direct jumps in softmmu
Instead of unconditionally exiting to the exec loop, use the
gen_jr helper to jump to the target if it is valid.
Perf impact: see next commit's log.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-10-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:21 +0000 (23:29 -0400)]
target/i386: introduce gen_jr helper to generate lookup_and_goto_ptr
This helper will be used by subsequent changes.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-9-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:20 +0000 (23:29 -0400)]
target/arm: optimize indirect branches
Speed up indirect branches by jumping to the target if it is valid.
Softmmu measurements (see later commit for user-mode results):
Note: baseline (i.e. speedup == 1x) is QEMU v2.9.0.
- Impact on Boot time
| setup | ARM debian jessie boot+shutdown time | stddev |
|--------+--------------------------------------+--------|
| v2.9.0 | 8.84 | 0.07 |
| +cross | 8.85 | 0.03 |
| +jr | 8.83 | 0.06 |
- NBench, arm-softmmu (debian jessie guest). Host: Intel i7-4790K @ 4.00GHz
1.3x +-+-------------------------------------------------------------------------------------------------------------+-+
| |
| cross #### |
1.25x +cross+jr..........................................................#++#.........................................+-+
| #### # # |
| +++# # # # |
| +++ **** # # # |
1.2x +-+...................................####............*..*..#......#..#.........................................+-+
| **** # * * # # # #### |
| * * # * * # # # # # |
1.15x +-+................................*..*..#............*..*..#......#..#.....#..#................................+-+
| * * # * * # # # # # |
| * * # #### * * # # # # # |
| * * # # # * * # # # # # #### |
1.1x +-+................................*..*..#......#..#..*..*..#......#..#.....#..#.........................#..#...+-+
| * * # # # * * # # # # # # # |
| * * # # # * * # # # # # # # |
1.05x +-+..........................####..*..*..#......#..#..*..*..#......#..#.....#..#......+++............*****..#...+-+
| ***** # * * # # # * * # ***** # # # +++ | ****### * * # |
| *+++* # * * # # # * * # *+++* # **** # *****### * * # * * # |
| *****### +++#### * * # * * # ***** # * * # * * # * * # * | *++# * * # * * # |
1x +-++-+*+++*-+#++****++#++*+-+*++#+-*++*++#-+*+++*-+#++*++*++#++*+-+*++#+-*++*++#-+*+++*-+#++*++*++#++*+-+*++#+-++-+
| * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # |
| * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # |
0.95x +-+---*****###--****###--*****###--****###--*****###--****###--*****###--****###--*****###--****###--*****###---+-+
ASSIGNMENT BITFIELD FOURFP EMULATION HUFFMAN LU DECOMPOSITIONEURAL NNUMERIC SOSTRING SORT hmean
png: http://imgur.com/eOLmZNR
NB. 'cross' represents the previous commit.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-8-git-send-email-cota@braap.org>
[rth: Replace gen_jr global variable with DISAS_EXIT state.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:19 +0000 (23:29 -0400)]
target/arm: optimize cross-page direct jumps in softmmu
Instead of unconditionally exiting to the exec loop, use the
lookup_and_goto_ptr helper to jump to the target if it is valid.
Perf impact: see next commit's log.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-7-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:18 +0000 (23:29 -0400)]
tcg/i386: implement goto_ptr
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-6-git-send-email-cota@braap.org>
[rth: Reuse goto_ptr epilogue for exit_tb 0.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emilio G. Cota [Thu, 27 Apr 2017 03:29:14 +0000 (23:29 -0400)]
tcg: Introduce goto_ptr opcode and tcg_gen_lookup_and_goto_ptr
Instead of exporting goto_ptr directly to TCG frontends, export
tcg_gen_lookup_and_goto_ptr(), which calls goto_ptr with the pointer
returned by the lookup_tb_ptr() helper. This is the only use case
we have for goto_ptr and lookup_tb_ptr, so having this function is
very convenient. Furthermore, it trivially allows us to avoid calling
the lookup helper if goto_ptr is not implemented by the backend.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
1493263764-18657-2-git-send-email-cota@braap.org>
Message-Id: <
1493263764-18657-3-git-send-email-cota@braap.org>
Message-Id: <
1493263764-18657-4-git-send-email-cota@braap.org>
Message-Id: <
1493263764-18657-5-git-send-email-cota@braap.org>
[rth: Squashed 4 related commits.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 17:41:55 +0000 (10:41 -0700)]
qemu/atomic: Loosen restrictions for 64-bit ILP32 hosts
We need to coordinate with the TCG_OVERSIZED_GUEST test in cputlb.c,
and allow 64-bit atomics even though sizeof(void *) == 4.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 17:39:08 +0000 (10:39 -0700)]
tcg/sparc: Use the proper compilation flags for 32-bit
We have required a v9 cpu since
9b9c37c36439ee0452632253dac7a31897f27f70.
However, the flags we were using did not reliably enable v8plus, which
meant that the compiler didn't know it could inline 64-bit atomics.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 26 Apr 2017 17:37:42 +0000 (10:37 -0700)]
target/nios2: Fix 64-bit ilp32 compilation
Avoid a "cast from pointer to integer of different size" warning
by using the proper host type.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Peter Maydell [Mon, 5 Jun 2017 14:28:12 +0000 (15:28 +0100)]
Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-fetch' into staging
trivial patches for 2017-06-05
# gpg: Signature made Mon 05 Jun 2017 15:23:46 BST
# gpg: using RSA key 0x701B4F6B1A693E59
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg: aka "Michael Tokarev <mjt@corpit.ru>"
# gpg: aka "Michael Tokarev <mjt@debian.org>"
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5
# Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931 4B22 701B 4F6B 1A69 3E59
* remotes/mjt/tags/trivial-patches-fetch: (21 commits)
hw/core: nmi.c can be compiled as common-obj nowadays
dump: fix memory_mapping_filter leak
ide-test: check return of fwrite
help: Add newline to end of thread option help text
qemu-ga: remove useless allocation
scsi/lsi53c895a: Remove unused lsi_mem_*() return value
qapi: Fix some QMP documentation regressions
hw/mips: add missing include
register: display register prefix (name) since it is available
hw/sparc: use ARRAY_SIZE() macro
hw/xtensa: sim: use g_string/g_new
target/arm: add data cache invalidation cp15 instruction to cortex-r5
block: Correct documentation for BLOCK_WRITE_THRESHOLD
trivial: Remove unneeded ifndef in memory.h
altera_timer: fix incorrect memset
configure: Detect native NetBSD curses(3)
tests/libqtest: Print error instead of aborting when env variable is missing
docs/qdev-device-use.txt: update section Default Devices
docs qemu-doc: Avoid ide-drive, it's deprecated
qemu-doc: Add hyperlinks to further license information
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Thomas Huth [Thu, 1 Jun 2017 09:54:03 +0000 (11:54 +0200)]
hw/core: nmi.c can be compiled as common-obj nowadays
The target-specific code in nmi.c has been removed with this commit:
commit
f7e981f29548fe4af7812f5920304fe607e5bf0d
nmi: remove x86 specific nmi handling
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Peter Maydell [Mon, 5 Jun 2017 09:09:14 +0000 (10:09 +0100)]
Merge remote-tracking branch 'remotes/elmarco/tags/chrfe-pull-request' into staging
# gpg: Signature made Fri 02 Jun 2017 20:12:48 BST
# gpg: using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* remotes/elmarco/tags/chrfe-pull-request:
char: move char devices to chardev/
char: make chr_fe_deinit() optionaly delete backend
char: rename functions that are not part of fe
char: move CharBackend handling in char-fe unit
char: generalize qemu_chr_write_all()
be-hci: use backend functions
chardev: serial & parallel declaration to own headers
chardev: move headers to include/chardev
Remove/replace sysemu/char.h inclusion
char-win: close file handle except with console
char-win: rename hcom->file
char-win: rename win_chr_init/poll win_chr_serial_init/poll
char-win: remove WinChardev.len
char-win: simplify win_chr_read()
char: cast ARRAY_SIZE() as signed to silent warning on empty array
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Marc-André Lureau [Wed, 3 May 2017 22:38:46 +0000 (02:38 +0400)]
dump: fix memory_mapping_filter leak
Spotted by ASAN.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
John Snow [Wed, 31 May 2017 19:28:36 +0000 (15:28 -0400)]
ide-test: check return of fwrite
To quiet patchew, add an assert for fwrite's return value.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Suraj Jitindar Singh [Wed, 31 May 2017 06:11:50 +0000 (16:11 +1000)]
help: Add newline to end of thread option help text
The help text for the thread sub option of the accel option is missing
a newline at the end. This is annoying as it makes it hard to see the
help text for the next option.
Add the new line so that the following option help text (-smp) is
displayed on a new line rather on the same line and directly after
the thread help.
Before patch:
-accel [accel=]accelerator[,thread=single|multi]
select accelerator (kvm, xen, hax or tcg; use 'help' for a list)
thread=single|multi (enable multi-threaded TCG)-smp [cpus=]n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]
set the number of CPUs to 'n' [default=1]
maxcpus= maximum number of total cpus, including
offline CPUs for hotplug, etc
cores= number of CPU cores on one socket
threads= number of threads on one CPU core
sockets= number of discrete sockets in the system
After patch:
-accel [accel=]accelerator[,thread=single|multi]
select accelerator (kvm, xen, hax or tcg; use 'help' for a list)
thread=single|multi (enable multi-threaded TCG)
-smp [cpus=]n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]
set the number of CPUs to 'n' [default=1]
maxcpus= maximum number of total cpus, including
offline CPUs for hotplug, etc
cores= number of CPU cores on one socket
threads= number of threads on one CPU core
sockets= number of discrete sockets in the system
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Marc-André Lureau [Fri, 26 May 2017 10:13:37 +0000 (14:13 +0400)]
qemu-ga: remove useless allocation
There is no need to duplicate a fixed string.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Mao Zhongyi [Fri, 26 May 2017 01:46:14 +0000 (09:46 +0800)]
scsi/lsi53c895a: Remove unused lsi_mem_*() return value
lsi_mem_read/write() always return 0 about which their
callers actually don't care. Change the function type
to void.
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Eric Blake [Tue, 23 May 2017 17:44:20 +0000 (12:44 -0500)]
qapi: Fix some QMP documentation regressions
In the process of getting rid of docs/qmp-commands.txt, we managed
to regress on some of the text that changed after the point where
the move was first branched and when the move actually occurred.
For example, commit
3282eca for blockdev-snapshot re-added the
extra "options" layer which had been cleaned up in commit
0153d2f.
This clears up all regressions identified over the range
02b351d..
bd6092e:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg05127.html
as well as a cleanup to x-blockdev-remove-medium to prefer
'id' over 'device' (matching the cleanup for 'eject').
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Philippe Mathieu-Daudé [Mon, 8 May 2017 23:39:12 +0000 (20:39 -0300)]
hw/mips: add missing include
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Philippe Mathieu-Daudé [Mon, 8 May 2017 23:39:17 +0000 (20:39 -0300)]
register: display register prefix (name) since it is available
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Philippe Mathieu-Daudé [Mon, 8 May 2017 23:39:15 +0000 (20:39 -0300)]
hw/sparc: use ARRAY_SIZE() macro
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Max Filippov [Mon, 8 May 2017 18:00:56 +0000 (11:00 -0700)]
hw/xtensa: sim: use g_string/g_new
Replace malloc/free/sprintf with g_string/g_string_printf/g_string_free.
Replace g_malloc with g_new when allocating the MemoryRegion to get more
type safety.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Luc MICHEL [Fri, 28 Apr 2017 12:56:32 +0000 (14:56 +0200)]
target/arm: add data cache invalidation cp15 instruction to cortex-r5
The cp15, CRn=15, opc1=0, CRm=5, opc2=0 instruction invalidates all the
data cache on the cortex-r5. Implementing it as a NOP.
Signed-off-by: Luc MICHEL <luc.michel@git.antfield.fr>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Eric Blake [Fri, 12 May 2017 19:30:15 +0000 (14:30 -0500)]
block: Correct documentation for BLOCK_WRITE_THRESHOLD
Use the correct command name.
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Juan Quintela [Thu, 18 May 2017 10:36:42 +0000 (12:36 +0200)]
trivial: Remove unneeded ifndef in memory.h
All the file is surounded already by #ifndef CONFIG_USER_ONLY.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Paolo Bonzini [Thu, 18 May 2017 10:33:34 +0000 (12:33 +0200)]
altera_timer: fix incorrect memset
Use sizeof instead of ARRAY_SIZE, fixing -Wmemset-elt-size with recent
GCC versions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Kamil Rytarowski [Wed, 26 Apr 2017 10:50:27 +0000 (12:50 +0200)]
configure: Detect native NetBSD curses(3)
NetBSD ships with traditional BSD curses with compatibility with ncurses.
qemu works nicely with the basesystem version of curses(3) from NetBSD.
The only mismatch between curses(3) and ncurses is the lack of
curses_version() in the NetBSD version. This function is used solely in
the configure script, therefore eliminate it from the curses(3) detection.
With this change applied, configure detects correctly curses frontend.
Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Thomas Huth [Mon, 22 May 2017 15:40:54 +0000 (17:40 +0200)]
tests/libqtest: Print error instead of aborting when env variable is missing
When you currently try to run a test directly from the command line
without setting the QTEST_QEMU_BINARY environment variable first,
you are presented with an unhelpful assertion message like this:
ERROR:tests/libqtest.c:163:qtest_init_without_qmp_handshake:
assertion failed: (qemu_binary != NULL)
Aborted (core dumped)
Let's replace the assert() with a more user friendly error message
instead.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Markus Armbruster [Tue, 9 May 2017 09:41:16 +0000 (11:41 +0200)]
docs/qdev-device-use.txt: update section Default Devices
Resynchronize the table of default device suppressions with vl.c's
default_list[].
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Markus Armbruster [Tue, 9 May 2017 09:41:15 +0000 (11:41 +0200)]
docs qemu-doc: Avoid ide-drive, it's deprecated
Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Thomas Huth [Mon, 22 May 2017 20:26:45 +0000 (22:26 +0200)]
qemu-doc: Add hyperlinks to further license information
Add a link to the GPLv2 and a link to the LICENSE file in the
QEMU repository to fix the two TODO items in this appendix.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Thomas Huth [Mon, 22 May 2017 20:53:29 +0000 (22:53 +0200)]
qemu-doc: Move the qemu-ga description into a separate chapter
The qemu-ga description is currently a subsection of the Disk Images
chapter - which does not make much sense since the qemu-ga is not
directly related to disk images. So let's move this information
into a separate chapter instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Peter Maydell [Fri, 2 Jun 2017 16:46:22 +0000 (17:46 +0100)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio, vhost: fixes, features
IOTLB support in vhost-user.
A bunch of fixes all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Fri 02 Jun 2017 17:33:25 BST
# gpg: using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
spec/vhost-user spec: Add IOMMU support
vhost-user: add slave-req-fd support
vhost-user: add vhost_user to hold the chr
vhost: rework IOTLB messaging
vhost: propagate errors in vhost_device_iotlb_miss()
virtio-serial: fix segfault on disconnect
virtio: add virtqueue_alloc_element tracepoint
virtio-serial-bus: Unset hotplug handler when unrealize
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Maxime Coquelin [Fri, 2 Jun 2017 10:18:31 +0000 (12:18 +0200)]
spec/vhost-user spec: Add IOMMU support
This patch specifies and implements the master/slave communication
to support device IOTLB in slave.
The vhost_iotlb_msg structure introduced for kernel backends is
re-used, making the design close between the two backends.
An exception is the use of the secondary channel to enable the
slave to send IOTLB miss requests to the master.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Marc-André Lureau [Fri, 2 Jun 2017 10:18:30 +0000 (12:18 +0200)]
vhost-user: add slave-req-fd support
Learn to give a socket to the slave to let him make requests to the
master.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Marc-André Lureau [Fri, 2 Jun 2017 10:18:29 +0000 (12:18 +0200)]
vhost-user: add vhost_user to hold the chr
Next patches will add more fields to the structure
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Maxime Coquelin [Fri, 2 Jun 2017 10:18:28 +0000 (12:18 +0200)]
vhost: rework IOTLB messaging
This patch reworks IOTLB messaging to prepare for vhost-user
device IOTLB support.
IOTLB messages handling is extracted from vhost-kernel backend,
so that only the messages transport remains backend specifics.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Maxime Coquelin [Fri, 2 Jun 2017 10:18:27 +0000 (12:18 +0200)]
vhost: propagate errors in vhost_device_iotlb_miss()
Some backends might want to know when things went wrong.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Stefan Hajnoczi [Fri, 2 Jun 2017 09:54:24 +0000 (10:54 +0100)]
virtio-serial: fix segfault on disconnect
Since commit
d4c19cdeeb2f1e474bc426a6da261f1d7346eb5b ("virtio-serial:
add missing virtio_detach_element() call") the following commands may
cause QEMU to segfault:
$ qemu -M accel=kvm -cpu host -m 1G \
-drive if=virtio,file=test.img,format=raw \
-device virtio-serial-pci,id=virtio-serial0 \
-chardev socket,id=channel1,path=/tmp/chardev.sock,server,nowait \
-device virtserialport,chardev=channel1,bus=virtio-serial0.0,id=port1
$ nc -U /tmp/chardev.sock
^C
(guest)$ cat /dev/zero >/dev/vport0p1
The segfault is non-deterministic: if the event loop notices the socket
has been closed then there is no crash. The disconnect has to happen
right before QEMU attempts to write data to the socket.
The backtrace is as follows:
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x00005555557e0698 in do_flush_queued_data (port=0x5555582cedf0, vq=0x7fffcc854290, vdev=0x55555807b1d0) at hw/char/virtio-serial-bus.c:180
180 for (i = port->iov_idx; i < port->elem->out_num; i++) {
#1 0x000055555580d363 in virtio_queue_notify_vq (vq=0x7fffcc854290) at hw/virtio/virtio.c:1524
#2 0x000055555580d363 in virtio_queue_host_notifier_read (n=0x7fffcc8542f8) at hw/virtio/virtio.c:2430
#3 0x0000555555b3482c in aio_dispatch_handlers (ctx=ctx@entry=0x5555566b8c80) at util/aio-posix.c:399
#4 0x0000555555b350d8 in aio_dispatch (ctx=0x5555566b8c80) at util/aio-posix.c:430
#5 0x0000555555b3212e in aio_ctx_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at util/async.c:261
#6 0x00007fffde71de52 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#7 0x0000555555b34353 in glib_pollfds_poll () at util/main-loop.c:213
#8 0x0000555555b34353 in os_host_main_loop_wait (timeout=<optimized out>) at util/main-loop.c:261
#9 0x0000555555b34353 in main_loop_wait (nonblocking=<optimized out>) at util/main-loop.c:517
#10 0x0000555555773207 in main_loop () at vl.c:1917
#11 0x0000555555773207 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4751
The do_flush_queued_data() function does not anticipate chardev close
events during vsc->have_data(). It expects port->elem to remain
non-NULL for the duration its for loop.
The fix is simply to return from do_flush_queued_data() if the port
closes because the close event already frees port->elem and drains the
virtqueue - there is nothing left for do_flush_queued_data() to do.
Reported-by: Sitong Liu <siliu@redhat.com>
Reported-by: Min Deng <mdeng@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Paolo Bonzini [Thu, 1 Jun 2017 13:54:47 +0000 (15:54 +0200)]
virtio: add virtqueue_alloc_element tracepoint
This tracepoint can help diagnosing failures due to memory
fragmentation in the guest.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Ladi Prosek [Tue, 30 May 2017 08:59:43 +0000 (10:59 +0200)]
virtio-serial-bus: Unset hotplug handler when unrealize
Virtio serial device controls the lifetime of virtio-serial-bus and
virtio-serial-bus links back to the device via its hotplug-handler
property. This extra ref-count prevents the device from getting
finalized, leaving the VirtIODevice memory listener registered and
leading to use-after-free later on.
This patch addresses the same issue as Fam Zheng's
"virtio-scsi: Unset hotplug handler when unrealize"
only for a different virtio device.
Cc: qemu-stable@nongnu.org
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Peter Maydell [Fri, 2 Jun 2017 15:51:17 +0000 (16:51 +0100)]
Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging
# gpg: Signature made Fri 02 Jun 2017 16:32:39 BST
# gpg: using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg: aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg: aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057
* remotes/cody/tags/block-pull-request:
gluster: add support for PREALLOC_MODE_FALLOC
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
projects / qemu.git / log