Juan Quintela [Thu, 3 Jan 2019 14:10:04 +0000 (15:10 +0100)]
virtio: split vhost user blk bits from virtio-pci
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Juan Quintela [Thu, 3 Jan 2019 14:10:03 +0000 (15:10 +0100)]
virtio: split virtio 9p bits from virtio-pci
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Juan Quintela [Thu, 3 Jan 2019 14:10:02 +0000 (15:10 +0100)]
virtio: split virtio balloon bits from virtio-pci
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Juan Quintela [Thu, 3 Jan 2019 14:10:01 +0000 (15:10 +0100)]
virtio: split virtio rng bits from virtio-pci
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Juan Quintela [Thu, 3 Jan 2019 14:10:00 +0000 (15:10 +0100)]
virtio: split virtio input bits from virtio-pci
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Juan Quintela [Thu, 3 Jan 2019 14:09:59 +0000 (15:09 +0100)]
virtio: split virtio input host bits from virtio-pci
For consistency with other devices, rename
virtio_host_{initfn,pci_info} to virtio_input_host_{initfn,info}.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Juan Quintela [Thu, 3 Jan 2019 14:09:58 +0000 (15:09 +0100)]
virtio: split vhost vsock bits from virtio-pci
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Yuri Benditovich [Thu, 3 Jan 2019 13:12:30 +0000 (15:12 +0200)]
virtio-net: changed VIRTIO_NET_F_RSC_EXT to be 61
Allocated feature bit changed in spec draft per TC request.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Yuri Benditovich [Thu, 3 Jan 2019 13:12:29 +0000 (15:12 +0200)]
virtio-net: support RSC v4/v6 tcp traffic for Windows HCK
This commit adds implementation of RX packets
coalescing, compatible with requirements of Windows
Hardware compatibility kit.
The device enables feature VIRTIO_NET_F_RSC_EXT in
host features if it supports extended RSC functionality
as defined in the specification.
This feature requires at least one of VIRTIO_NET_F_GUEST_TSO4,
VIRTIO_NET_F_GUEST_TSO6. Windows guest driver acks
this feature only if VIRTIO_NET_F_CTRL_GUEST_OFFLOADS
is also present.
If the guest driver acks VIRTIO_NET_F_RSC_EXT feature,
the device coalesces TCPv4 and TCPv6 packets (if
respective VIRTIO_NET_F_GUEST_TSO feature is on,
populates extended RSC information in virtio header
and sets VIRTIO_NET_HDR_F_RSC_INFO bit in header flags.
The device does not recalculate checksums in the coalesced
packet, so they are not valid.
In this case:
All the data packets in a tcp connection are cached
to a single buffer in every receive interval, and will
be sent out via a timer, the 'virtio_net_rsc_timeout'
controls the interval, this value may impact the
performance and response time of tcp connection,
50000(50us) is an experience value to gain a performance
improvement, since the whql test sends packets every 100us,
so '300000(300us)' passes the test case, it is the default
value as well, tune it via the command line parameter
'rsc_interval' within 'virtio-net-pci' device, for example,
to launch a guest with interval set as '500000':
'virtio-net-pci,netdev=hostnet1,bus=pci.0,id=net1,mac=00,
guest_rsc_ext=on,rsc_interval=500000'
The timer will only be triggered if the packets pool is not empty,
and it'll drain off all the cached packets.
'NetRscChain' is used to save the segments of IPv4/6 in a
VirtIONet device.
A new segment becomes a 'Candidate' as well as it passed sanity check,
the main handler of TCP includes TCP window update, duplicated
ACK check and the real data coalescing.
An 'Candidate' segment means:
1. Segment is within current window and the sequence is the expected one.
2. 'ACK' of the segment is in the valid window.
Sanity check includes:
1. Incorrect version in IP header
2. An IP options or IP fragment
3. Not a TCP packet
4. Sanity size check to prevent buffer overflow attack.
5. An ECN packet
Even though, there might more cases should be considered such as
ip identification other flags, while it breaks the test because
windows set it to the same even it's not a fragment.
Normally it includes 2 typical ways to handle a TCP control flag,
'bypass' and 'finalize', 'bypass' means should be sent out directly,
while 'finalize' means the packets should also be bypassed, but this
should be done after search for the same connection packets in the
pool and drain all of them out, this is to avoid out of order fragment.
All the 'SYN' packets will be bypassed since this always begin a new'
connection, other flags such 'URG/FIN/RST/CWR/ECE' will trigger a
finalization, because this normally happens upon a connection is going
to be closed, an 'URG' packet also finalize current coalescing unit.
Statistics can be used to monitor the basic coalescing status, the
'out of order' and 'out of window' means how many retransmitting packets,
thus describe the performance intuitively.
Difference between ip v4 and v6 processing:
Fragment length in ipv4 header includes itself, while it's not
included for ipv6, thus means ipv6 can carry a real 65535 payload.
Note that main goal of implementing this feature in software
is to create reference setup for certification tests. In such
setups guest migration is not required, so the coalesced packets
not yet delivered to the guest will be lost in case of migration.
Signed-off-by: Wei Xu <wexu@redhat.com>
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:34 +0000 (15:13 +0100)]
tests: acpi: use AcpiSdtTable::aml instead of AcpiSdtTable::header::signature
AcpiSdtTable::header::signature is the only remained field from
AcpiTableHeader structure used by tests. Instead of using packed
structure to access signature, just read it directly from table
blob and remove no longer used AcpiSdtTable::header / union and
keep only AcpiSdtTable::aml byte array.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:33 +0000 (15:13 +0100)]
tests: acpi: squash sanitize_fadt_ptrs() into test_acpi_fadt_table()
some parts of sanitize_fadt_ptrs() do redundant job
- locating FADT
- checking original checksum
There is no need to do it as test_acpi_fadt_table() already does that,
so drop duplicate code and move remaining fixup code into
test_acpi_fadt_table().
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:32 +0000 (15:13 +0100)]
tests: smbios: fetch whole table in one step instead of reading it step by step
replace a bunch of ACPI_READ_ARRAY/ACPI_READ_FIELD macro, that read
SMBIOS table field by field with one memread() to fetch whole table
at once and drop no longer used ACPI_READ_ARRAY/ACPI_READ_FIELD macro.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:31 +0000 (15:13 +0100)]
tests: acpi: reuse fetch_table() in vmgenid-test
Move fetch_table() into acpi-utils.c renaming it to acpi_fetch_table()
and reuse it in vmgenid-test that reads RSDT and then tables it references,
to find and parse VMGNEID SSDT.
While at it wrap RSDT referenced tables enumeration into FOREACH macro
(similar to what we do with QLIST_FOREACH & co) to reuse it with bios and
vmgenid tests.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:30 +0000 (15:13 +0100)]
tests: acpi: reuse fetch_table() for fetching FACS and DSDT
It allows to remove a bit more of code duplication and
reuse common utility to get ACPI tables from guest (modulo RSDP).
While at it, consolidate signature checking into fetch_table() instead
of open-codding it.
Considering FACS is special and doesn't have checksum, make checksum
validation optin, the same goes for signature verification.
PS:
By pure accident, patch also fixes FACS not being tested against
reference table since it wasn't added to data::tables list.
But we managed not to regress it since reference file was added
by commit
(
d25979380 acpi unit-test: add test files)
back in 2013
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:29 +0000 (15:13 +0100)]
tests: acpi: simplify rsdt handling
RSDT referenced tables always have length at offset 4 and checksum at
offset 9, that's enough for reusing fetch_table() and replacing custom
RSDT fetching code with it.
While at it
* merge fetch_rsdt_referenced_tables() into test_acpi_rsdt_table()
* drop test_data::rsdt_table/rsdt_tables_addr/rsdt_tables_nr since
we need this data only for duration of test_acpi_rsdt_table() to
fetch other tables and use locals instead.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:28 +0000 (15:13 +0100)]
tests: acpi: make sure FADT is fetched only once
Whole FADT is fetched as part of RSDT referenced tables in
fetch_rsdt_referenced_tables() albeit a bit later than when FADT
is partially parsed in fadt_fetch_facs_and_dsdt_ptrs().
However there is no reason for calling fetch_rsdt_referenced_tables()
so late, just move it right after we fetched RSDT and before
fadt_fetch_facs_and_dsdt_ptrs(). That way we can reuse whole FADT
fetched by fetch_rsdt_referenced_tables() and avoid duplicate
custom fields fetching in fadt_fetch_facs_and_dsdt_ptrs().
While at it rename fadt_fetch_facs_and_dsdt_ptrs() to
test_acpi_fadt_table(). The follow up patch will merge
fadt_fetch_facs_and_dsdt_ptrs() into test_acpi_rsdt_table(),
so that we would end up calling only test_acpi_FOO_table()
for consistency for tables that require special processing.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Igor Mammedov [Thu, 27 Dec 2018 14:13:27 +0000 (15:13 +0100)]
tests: acpi: use AcpiSdtTable::aml in consistent way
Currently in the 1st case we store table body fetched from QEMU in
AcpiSdtTable::aml minus it's header but in the 2nd case when we
load reference aml from disk, it holds whole blob including header.
More over in the 1st case, we read header in separate AcpiSdtTable::header
structure and then jump over hoops to fixup tables and combine both.
Treat AcpiSdtTable::aml as whole table blob approach in both cases
and when fetching tables from QEMU, first get table length and then
fetch whole table into AcpiSdtTable::aml instead if doing it field
by field.
As result
* AcpiSdtTable::aml is used in consistent manner
* FADT fixups use offsets from spec instead of being shifted by
header length
* calculating checksums and dumping blobs becomes simpler
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Li Qiang [Sat, 15 Dec 2018 12:03:53 +0000 (04:03 -0800)]
util: check the return value of fcntl in qemu_set_{block, nonblock}
Assert that the return value is not an error. This is like commit
7e6478e7d4f for qemu_set_cloexec.
Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Li Qiang [Sat, 15 Dec 2018 12:03:52 +0000 (04:03 -0800)]
vhost-user: fix ioeventfd_enabled
Currently, the vhost-user-test assumes the eventfd is available.
However it's not true because the accel is qtest. So the
'vhost_set_vring_file' will not add fds to the msg and the server
side of vhost-user-test will be broken. The bug is in 'ioeventfd_enabled'.
We should make this function return true if not using kvm accel.
Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Li Qiang [Sat, 15 Dec 2018 12:03:51 +0000 (04:03 -0800)]
tests: vhost-user-test: initialize 'fd' in chr_read
Currently when processing VHOST_USER_SET_VRING_CALL
if 'qemu_chr_fe_get_msgfds' get no fd, the 'fd' will
be a stack uninitialized value.
Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Jian Wang [Sat, 22 Dec 2018 10:27:28 +0000 (18:27 +0800)]
qemu: avoid memory leak while remove disk
Memset vhost_dev to zero in the vhost_dev_cleanup function.
This causes dev.vqs to be NULL, so that
vqs does not free up space when calling the g_free function.
This will result in a memory leak. But you can't release vqs
directly in the vhost_dev_cleanup function, because vhost_net
will also call this function, and vhost_net's vqs is assigned by array.
In order to solve this problem, we first save the pointer of vqs,
and release the space of vqs after vhost_dev_cleanup is called.
Signed-off-by: Jian Wang <wangjian161@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Thomas Huth [Wed, 19 Dec 2018 13:13:25 +0000 (14:13 +0100)]
hw/misc/ivshmem: Remove deprecated "ivshmem" legacy device
It's been marked as deprecated in QEMU v2.6.0 already, so really nobody
should use the legacy "ivshmem" device anymore (but use ivshmem-plain or
ivshmem-doorbell instead). Time to remove the deprecated device now.
Belatedly also update a mention of the deprecated "ivshmem" in the file
docs/specs/ivshmem-spec.txt to "ivshmem-doorbell". Missed in commit
5400c02b90b ("ivshmem: Split ivshmem-plain, ivshmem-doorbell off ivshmem").
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Dongli Zhang [Sun, 16 Dec 2018 23:34:39 +0000 (07:34 +0800)]
msix: make pba size math more uniform
In msix_exclusive_bar the bar_pba_size is more than what the pba is
expected to have, although this never affects the bar size.
Specifically, the math in msix_init_exclusive_bar allocates too much
memory in some cases.
For example consider nentries = 8. msix_exclusive_bar will give us
bar_pba_size = 16. So 16 bytes. However 8 bytes would be enough - this
is all that the spec requires.
So in practice bar_pba_size sometimes allocates an extra 8 bytes but
never more.
Since each MSIX entry size is 16 bytes, and since we make sure that
table+pba is a power of two, this always leaves a multiple of 16 bytes
for the PBA, so extra 8 bytes have no effect.
However, its ugly to have pba size temporary variable have an incorrect
value. For consistency switch to the formula used in msix_init.
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
David Hildenbrand [Wed, 12 Dec 2018 09:16:16 +0000 (10:16 +0100)]
pci/pcie: stop plug/unplug if the slot is locked
We better stop right away. For now, errors would be partially ignored
(so the guest might get informed or the device might get unplugged),
although actual plug/unplug will be reported as failed to the user.
While at it, properly move the check to the pre_plug handler for the plug
case, as we can test the slot state before the device will be realized.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Peter Maydell [Mon, 14 Jan 2019 17:35:00 +0000 (17:35 +0000)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging
x86 queue, 2019-01-14
* Reenable RDTSCP support on Opteron_G[345] CPU models CPU models
(Borislav Petkov)
* host-phys-bits-limit option for better control of 5-level EPT
(Eduardo Habkost)
* Disable MPX support on named CPU models (Paolo Bonzini)
* expose HV_CPUID_ENLIGHTMENT_INFO.EAX and HV_CPUID_NESTED_FEATURES.EAX
as feature words (Vitaly Kuznetsov)
# gpg: Signature made Mon 14 Jan 2019 14:33:55 GMT
# gpg: using RSA key
2807936F984DC5A6
# 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-next-pull-request:
i386/kvm: add a comment explaining why .feat_names are commented out for Hyper-V feature bits
x86: host-phys-bits-limit option
target/i386: Disable MPX support on named CPU models
target-i386: Reenable RDTSCP support on Opteron_G[345] CPU models CPU models
i386/kvm: expose HV_CPUID_ENLIGHTMENT_INFO.EAX and HV_CPUID_NESTED_FEATURES.EAX as feature words
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Vitaly Kuznetsov [Fri, 21 Dec 2018 14:16:04 +0000 (15:16 +0100)]
i386/kvm: add a comment explaining why .feat_names are commented out for Hyper-V feature bits
Hyper-V .feat_names are, unlike hardware features, commented out and it is
not obvious why we do that. Document the current status quo.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <
20181221141604.16935-1-vkuznets@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Tue, 11 Dec 2018 19:25:27 +0000 (17:25 -0200)]
x86: host-phys-bits-limit option
Some downstream distributions of QEMU set host-phys-bits=on by
default. This worked very well for most use cases, because
phys-bits really didn't have huge consequences. The only
difference was on the CPUID data seen by guests, and on the
handling of reserved bits.
This changed in KVM commit
855feb673640 ("KVM: MMU: Add 5 level
EPT & Shadow page table support"). Now choosing a large
phys-bits value for a VM has bigger impact: it will make KVM use
5-level EPT even when it's not really necessary. This means
using the host phys-bits value may not be the best choice.
Management software could address this problem by manually
configuring phys-bits depending on the size of the VM and the
amount of MMIO address space required for hotplug. But this is
not trivial to implement.
However, there's another workaround that would work for most
cases: keep using the host phys-bits value, but only if it's
smaller than 48. This patch makes this possible by introducing a
new "-cpu" option: "host-phys-bits-limit". Management software
or users can make sure they will always use 4-level EPT using:
"host-phys-bits=on,host-phys-bits-limit=48".
This behavior is still not enabled by default because QEMU
doesn't enable host-phys-bits=on by default. But users,
management software, or downstream distributions may choose to
change their defaults using the new option.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
20181211192527.13254-1-ehabkost@redhat.com>
[ehabkost: removed test code while some issues are addressed]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Paolo Bonzini [Thu, 20 Dec 2018 12:11:00 +0000 (13:11 +0100)]
target/i386: Disable MPX support on named CPU models
MPX support is being phased out by Intel; GCC has dropped it, Linux
is also going to do that. Even though KVM will have special code
to support MPX after the kernel proper stops enabling it in XCR0,
we probably also want to deprecate that in a few years. As a start,
do not enable it by default for any named CPU model starting with
the 4.0 machine types; this include Skylake, Icelake and Cascadelake.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
20181220121100.21554-1-pbonzini@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Borislav Petkov [Thu, 20 Dec 2018 12:07:32 +0000 (10:07 -0200)]
target-i386: Reenable RDTSCP support on Opteron_G[345] CPU models CPU models
The missing functionality was added ~3 years ago with the Linux commit
46896c73c1a4 ("KVM: svm: add support for RDTSCP")
so reenable RDTSCP support on those CPU models.
Opteron_G2 - being family 15, model 6, doesn't have RDTSCP support
(the real hardware doesn't have it. K8 got RDTSCP support with the NPT
models, i.e., models >= 0x40).
Document the host's minimum required kernel version, while at it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Message-ID: <
20181212200803.GG6653@zn.tnic>
[ehabkost: moved compat properties code to pc.c]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Vitaly Kuznetsov [Mon, 26 Nov 2018 13:59:58 +0000 (14:59 +0100)]
i386/kvm: expose HV_CPUID_ENLIGHTMENT_INFO.EAX and HV_CPUID_NESTED_FEATURES.EAX as feature words
It was found that QMP users of QEMU (e.g. libvirt) may need
HV_CPUID_ENLIGHTMENT_INFO.EAX/HV_CPUID_NESTED_FEATURES.EAX information. In
particular, 'hv_tlbflush' and 'hv_evmcs' enlightenments are only exposed in
HV_CPUID_ENLIGHTMENT_INFO.EAX.
HV_CPUID_NESTED_FEATURES.EAX is exposed for two reasons: convenience
(we don't need to export it from hyperv_handle_properties() and as
future-proof for Enlightened MSR-Bitmap, PV EPT invalidation and
direct virtual flush features.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <
20181126135958.20956-1-vkuznets@redhat.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Peter Maydell [Mon, 14 Jan 2019 13:54:17 +0000 (13:54 +0000)]
Merge remote-tracking branch 'remotes/aperard/tags/pull-xen-
20190114' into staging
Xen queue
* Xen PV backend 'qdevification'.
Starting with xen_disk.
* Performance improvements for xen-block.
* Remove of the Xen PV domain builder.
* bug fixes.
# gpg: Signature made Mon 14 Jan 2019 13:46:33 GMT
# gpg: using RSA key
0CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>"
# gpg: aka "Anthony PERARD <anthony.perard@citrix.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: 5379 2F71 024C 600F 778A 7161 D8D5 7199 DF83 42C8
# Subkey fingerprint: F80C 0063 08E2 2CFD 8A92 E798 0CF5 572F D7FB 55AF
* remotes/aperard/tags/pull-xen-
20190114: (25 commits)
xen-block: avoid repeated memory allocation
xen-block: improve response latency
xen-block: improve batching behaviour
xen: Replace few mentions of xend by libxl
Remove broken Xen PV domain builder
xen: remove the legacy 'xen_disk' backend
MAINTAINERS: add myself as a Xen maintainer
xen: automatically create XenBlockDevice-s
xen: add a mechanism to automatically create XenDevice-s...
xen: add implementations of xen-block connect and disconnect functions...
xen: purge 'blk' and 'ioreq' from function names in dataplane/xen-block.c
xen: remove 'ioreq' struct/varable/field names from dataplane/xen-block.c
xen: remove 'XenBlkDev' and 'blkdev' names from dataplane/xen-block
xen: add header and build dataplane/xen-block.c
xen: remove unnecessary code from dataplane/xen-block.c
xen: duplicate xen_disk.c as basis of dataplane/xen-block.c
xen: add event channel interface for XenDevice-s
xen: add grant table interface for XenDevice-s
xen: add xenstore watcher infrastructure
xen: create xenstore areas for XenDevice-s
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tim Smith [Wed, 12 Dec 2018 11:16:26 +0000 (11:16 +0000)]
xen-block: avoid repeated memory allocation
The xen-block dataplane currently allocates memory to hold the data for
each request as that request is used, and frees it afterwards. Because
it requires page-aligned blocks, this interacts poorly with non-page-
aligned allocations and balloons the heap.
Instead, allocate the maximum possible buffer size required for the
protocol, which is BLKIF_MAX_SEGMENTS_PER_REQUEST (currently 11) pages
when the request structure is created, and keep that buffer until it is
destroyed. Since the requests are re-used via a free list, this should
actually improve memory usage.
Signed-off-by: Tim Smith <tim.smith@citrix.com>
Re-based and commit comment adjusted.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Tim Smith [Wed, 12 Dec 2018 11:16:25 +0000 (11:16 +0000)]
xen-block: improve response latency
If the I/O ring is full, the guest cannot send any more requests
until some responses are sent. Only sending all available responses
just before checking for new work does not leave much time for the
guest to supply new work, so this will cause stalls if the ring gets
full. Also, not completing reads as soon as possible adds latency
to the guest.
To alleviate that, complete IO requests as soon as they come back.
xen_block_send_response() already returns a value indicating whether
a notify should be sent, which is all the batching we need.
Signed-off-by: Tim Smith <tim.smith@citrix.com>
Re-based and commit comment adjusted.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Tim Smith [Wed, 12 Dec 2018 11:16:24 +0000 (11:16 +0000)]
xen-block: improve batching behaviour
When I/O consists of many small requests, performance is improved by
batching them together in a single io_submit() call. When there are
relatively few requests, the extra overhead is not worth it. This
introduces a check to start batching I/O requests via blk_io_plug()/
blk_io_unplug() in an amount proportional to the number which were
already in flight at the time we started reading the ring.
Signed-off-by: Tim Smith <tim.smith@citrix.com>
Re-based and commit comment adjusted.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Anthony PERARD [Fri, 14 Sep 2018 11:18:30 +0000 (12:18 +0100)]
xen: Replace few mentions of xend by libxl
xend have been replaced by libxenlight (libxl) for many Xen releases
now.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Anthony PERARD [Fri, 14 Sep 2018 11:18:29 +0000 (12:18 +0100)]
Remove broken Xen PV domain builder
It is broken since Xen 4.9 [1] and it will not build in Xen 4.12. Also,
it is not built by default since QEMU 2.6.
[1] https://lists.xenproject.org/archives/html/xen-devel/2018-09/msg00313.html
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Paul Durrant [Tue, 8 Jan 2019 14:49:03 +0000 (14:49 +0000)]
xen: remove the legacy 'xen_disk' backend
This backend has now been replaced by the 'xen-qdisk' XenDevice.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:49:02 +0000 (14:49 +0000)]
MAINTAINERS: add myself as a Xen maintainer
I have made many significant contributions to the Xen code in QEMU,
particularly the recent patches introducing a new PV device framework.
I intend to make further significant contributions, porting other PV back-
ends to the new framework with the intent of eventually removing the
legacy code. It therefore seems reasonable that I become a maintainer of
the Xen code.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:49:01 +0000 (14:49 +0000)]
xen: automatically create XenBlockDevice-s
This patch adds create and destroy function for XenBlockDevice-s so that
they can be created automatically when the Xen toolstack instantiates a new
PV backend via xenstore. When the XenBlockDevice is created this way it is
also necessary to create a 'drive' which matches the configuration that the
Xen toolstack has written into xenstore. This is done by formulating the
parameters necessary for each 'blockdev' layer of the drive and then using
qmp_blockdev_add() to create the layers. Also, for compatibility with the
legacy 'xen_disk' implementation, an iothread is automatically created for
the new XenBlockDevice. This, like the driver layers, will be destroyed
after the XenBlockDevice is unrealized.
The legacy backend scan for 'qdisk' is removed by this patch, which makes
the 'xen_disk' code is redundant. The code will be removed by a subsequent
patch.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:49:00 +0000 (14:49 +0000)]
xen: add a mechanism to automatically create XenDevice-s...
...that maintains compatibility with existing Xen toolstacks.
Xen toolstacks instantiate PV backends by simply writing information into
xenstore and expecting a backend implementation to be watching for this.
This patch adds a new 'xen-backend' module to allow individual XenDevice
implementations to register create and destroy functions. The creator
will be called when a tool-stack instantiates a new backend in this way,
and the destructor will then be called after the resulting XenDevice
object is unrealized.
To support this it is also necessary to add new watchers into the XenBus
implementation to handle enumeration of new backends and also destruction
of XenDevice-s when the toolstack sets the backend 'online' key to 0.
NOTE: This patch only adds the framework. A subsequent patch will add a
creator function for xen-block devices.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:59 +0000 (14:48 +0000)]
xen: add implementations of xen-block connect and disconnect functions...
...and wire in the dataplane.
This patch adds the remaining code to make the xen-block XenDevice
functional. The parameters that a block frontend expects to find are
populated in the backend xenstore area, and the 'ring-ref' and
'event-channel' values specified in the frontend xenstore area are
mapped/bound and used to set up the dataplane.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:58 +0000 (14:48 +0000)]
xen: purge 'blk' and 'ioreq' from function names in dataplane/xen-block.c
This is a purely cosmetic patch that purges remaining use of 'blk' and
'ioreq' in local function names, and then makes sure all functions are
prefixed with 'xen_block_'.
No functional change.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:57 +0000 (14:48 +0000)]
xen: remove 'ioreq' struct/varable/field names from dataplane/xen-block.c
This is a purely cosmetic patch that purges the name 'ioreq' from struct,
variable and field names. (This name has been problematic for a long time
as 'ioreq' is the name used for generic I/O requests coming from Xen).
The patch replaces 'struct ioreq' with a new 'XenBlockRequest' type and
'ioreq' field/variable names with 'request', and then does necessary
fix-up to adhere to coding style.
Function names are not modified by this patch. They will be dealt with in
a subsequent patch.
No functional change.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:56 +0000 (14:48 +0000)]
xen: remove 'XenBlkDev' and 'blkdev' names from dataplane/xen-block
This is a purely cosmetic patch that substitutes the old 'struct XenBlkDev'
name with 'XenBlockDataPlane' and 'blkdev' field/variable names with
'dataplane', and then does necessary fix-up to adhere to coding style.
No functional change.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:55 +0000 (14:48 +0000)]
xen: add header and build dataplane/xen-block.c
This patch adds the transformations necessary to get dataplane/xen-block.c
to build against the new XenBus/XenDevice framework. MAINTAINERS is also
updated due to the introduction of dataplane/xen-block.h.
NOTE: Existing data structure names are retained for the moment. These will
be modified by subsequent patches. A typedef for XenBlockDataPlane
has been added to the header (based on the old struct XenBlkDev name
for the moment) so that the old names don't need to leak out of the
dataplane code.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:54 +0000 (14:48 +0000)]
xen: remove unnecessary code from dataplane/xen-block.c
Not all of the code duplicated from xen_disk.c is required as the basis for
the new dataplane implementation so this patch removes extraneous code,
along with the legacy #includes and calls to the legacy xen_pv_printf()
function. Error messages are changed to be reported using error_report().
NOTE: The code is still not yet built. Further transformations will be
required to make it correctly interface to the new XenBus/XenDevice
framework. They will be delivered in a subsequent patch.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:53 +0000 (14:48 +0000)]
xen: duplicate xen_disk.c as basis of dataplane/xen-block.c
The new xen-block XenDevice implementation requires the same core
dataplane as the legacy xen_disk implementation it will eventually replace.
This patch therefore copies the legacy xen_disk.c source module into a new
dataplane/xen-block.c source module as the basis for the new dataplane and
adjusts the MAINTAINERS file accordingly.
NOTE: The duplicated code is not yet built. It is simply put into place by
this patch (just fixing style violations) such that the
modifications that will need to be made to the code are not
conflated with code movement, thus making review harder.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:52 +0000 (14:48 +0000)]
xen: add event channel interface for XenDevice-s
The legacy PV backend infrastructure provides functions to bind, unbind
and send notifications to event channnels. Similar functionality will be
required by XenDevice implementations so this patch adds the necessary
support.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Patch squashed with:
Patch "xen: add event channel interface for XenDevice-s" makes use of
the type xenevtchn_port_or_error_t, but this isn't avaiable before Xen
4.7. Also the function xen_device_bind_event_channel assign the return
value of xenevtchn_bind_interdomain to channel->local_port but check the
result for error with xendev->local_port.
Fix by:
- removing local_port from struct XenDevice as it isn't use anywere.
- adding a compatibility typedef for xenevtchn_port_or_error_t for Xen
4.6 and earlier.
As extra, replace the type of XenEventChannel->local_port by
evtchn_port_t.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:51 +0000 (14:48 +0000)]
xen: add grant table interface for XenDevice-s
The legacy PV backend infrastructure provides functions to map, unmap and
copy pages granted by frontends. Similar functionality will be required
by XenDevice implementations so this patch adds the necessary support.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:50 +0000 (14:48 +0000)]
xen: add xenstore watcher infrastructure
A Xen PV frontend communicates its state to the PV backend by writing to
the 'state' key in the frontend area in xenstore. It is therefore
necessary for a XenDevice implementation to be notified whenever the
value of this key changes.
This patch adds code to do this as follows:
- an 'fd handler' is registered on the libxenstore handle which will be
triggered whenever a 'watch' event occurs
- primitives are added to xen-bus-helper to add or remove watch events
- a list of Notifier objects is added to XenBus to provide a mechanism
to call the appropriate 'watch handler' when its associated event
occurs
The xen-block implementation is extended with a 'frontend_changed' method,
which calls as-yet stub 'connect' and 'disconnect' functions when the
relevant frontend state transitions occur. A subsequent patch will supply
a full implementation for these functions.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:49 +0000 (14:48 +0000)]
xen: create xenstore areas for XenDevice-s
This patch adds a new source module, xen-bus-helper.c, which builds on
basic libxenstore primitives to provide functions to create (setting
permissions appropriately) and destroy xenstore areas, and functions to
'printf' and 'scanf' nodes therein. The main xen-bus code then uses
these primitives [1] to initialize and destroy the frontend and backend
areas for a XenDevice during realize and unrealize respectively.
The 'xen-block' implementation is extended with a 'get_name' method that
returns the VBD number. This number is required to 'name' the xenstore
areas.
NOTE: An exit handler is also added to make sure the xenstore areas are
cleaned up if QEMU terminates without devices being unrealized.
[1] The 'scanf' functions are actually not yet needed, but they will be
needed by code delivered in subsequent patches.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:48 +0000 (14:48 +0000)]
xen: introduce 'xen-block', 'xen-disk' and 'xen-cdrom'
This patch adds new XenDevice-s: 'xen-disk' and 'xen-cdrom', both derived
from a common 'xen-block' parent type. These will eventually replace the
'xen_disk' (note the underscore rather than hyphen) legacy PV backend but
it is illustrative to build up the implementation incrementally, along with
the XenBus/XenDevice framework. Subsequent patches will therefore add to
these devices' implementation as new features are added to the framework.
After this patch has been applied it is possible to instantiate new
'xen-disk' or 'xen-cdrom' devices with a single 'vdev' parameter, which
accepts values adhering to the Xen VBD naming scheme [1]. For example, a
command-line instantiation of a xen-disk can be done with an argument
similar to the following:
-device xen-disk,vdev=hda
The implementation of the vdev parameter formulates the appropriate VBD
number for use in the PV protocol.
[1] https://xenbits.xen.org/docs/unstable/man/xen-vbd-interface.7.html
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:47 +0000 (14:48 +0000)]
xen: introduce new 'XenBus' and 'XenDevice' object hierarchy
This patch adds the basic boilerplate for a 'XenBus' object that will act
as a parent to 'XenDevice' PV backends.
A new 'XenBridge' object is also added to connect XenBus to the system bus.
The XenBus object is instantiated by a new xen_bus_init() function called
from the same sites as the legacy xen_be_init() function.
Subsequent patches will flesh-out the functionality of these objects.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Paul Durrant [Tue, 8 Jan 2019 14:48:46 +0000 (14:48 +0000)]
xen: re-name XenDevice to XenLegacyDevice...
...and xen_backend.h to xen-legacy-backend.h
Rather than attempting to convert the existing backend infrastructure to
be QOM compliant (which would be hard to do in an incremental fashion),
subsequent patches will introduce a completely new framework for Xen PV
backends. Hence it is necessary to re-name parts of existing code to avoid
name clashes. The re-named 'legacy' infrastructure will be removed once all
backends have been ported to the new framework.
This patch is purely cosmetic. No functional change.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Zhao Yan [Wed, 5 Dec 2018 07:58:30 +0000 (02:58 -0500)]
xen/pt: allow passthrough of devices with bogus interrupt pin
For some pci device, even its PCI_INTERRUPT_PIN is not 0, it actually
doesn't support INTx mode, so its machine irq read from host sysfs is 0.
In that case, report PCI_INTERRUPT_PIN as 0 to guest and let passthrough
continue.
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Zhao Yan <yan.y.zhao@intel.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Peter Maydell [Mon, 19 Nov 2018 16:26:58 +0000 (16:26 +0000)]
hw/xen/xen_pt_graphics: Don't trust the BIOS ROM contents so much
Coverity (CID 796599) points out that xen_pt_setup_vga() trusts
the rom->size field in the BIOS ROM from a PCI passthrough VGA
device, and uses it as an index into the memory which contains
the BIOS image. A corrupt BIOS ROM could therefore cause us to
index off the end of the buffer.
Check that the size is within bounds before we use it.
We are also trusting the pcioffset field, and assuming that
the whole rom_header is present; Coverity doesn't notice these,
but check them too.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Peter Maydell [Mon, 14 Jan 2019 11:41:43 +0000 (11:41 +0000)]
Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-3.2-part2' into staging
RISC-V Updates for 3.2, Part 2
This patch set contains a handful of Michael's CSR-related cleanups,
which should allow us to proceed with more outstanding bug fixes that
depend on them.
Additionally, there is a patch that turns on USB. This works for me
when the kernel has the appropriate drivers (which will soon be in
defconfig) and I pass
-device usb-ehci
-drive id=my_usb_disk,file=usbdisk.img,if=none,format=raw
-device usb-storage,drive=my_usb_disk
to QEMU.
# gpg: Signature made Fri 11 Jan 2019 18:05:02 GMT
# gpg: using RSA key
EF4CA1502CCBAB41
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>"
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
* remotes/palmer/tags/riscv-for-master-3.2-part2:
default-configs: Enable USB support for RISC-V machines
RISC-V: Implement existential predicates for CSRs
RISC-V: Implement atomic mip/sip CSR updates
RISC-V: Implement modular CSR helper interface
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 14 Jan 2019 11:04:35 +0000 (11:04 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/input-
20190111-pull-request' into staging
input: avoid malloc for mouse events
# gpg: Signature made Fri 11 Jan 2019 14:26:44 GMT
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/input-
20190111-pull-request:
input: avoid malloc for mouse events
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 14 Jan 2019 10:11:36 +0000 (10:11 +0000)]
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging
Work around test-qht-par + gprof issues
Travis CI jobs are failing because of test-qht-par when gprof is
enabled. Temporarily disable test-qht-par if gprof is enabled,
until we fix the bug.
# gpg: Signature made Fri 11 Jan 2019 18:23:29 GMT
# gpg: using RSA key
2807936F984DC5A6
# 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/machine-next-pull-request:
tests: Disable qht-bench parallel test when using gprof
configure: Let the TARGET_GPROF var use the regular 'y' for Yes
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 11 Jan 2019 19:09:13 +0000 (19:09 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/vga-
20190111-pull-request' into staging
vga: enable virtio test, fix ddc oob read
# gpg: Signature made Fri 11 Jan 2019 13:58:12 GMT
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/vga-
20190111-pull-request:
i2c-ddc: fix oob read
tests/display-vga: Enable virtio-vga test
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Philippe Mathieu-Daudé [Thu, 3 Jan 2019 15:09:51 +0000 (16:09 +0100)]
tests: Disable qht-bench parallel test when using gprof
This test is failing on the Travis CI [*] since some time now,
disable it until it get fixed.
[*] https://travis-ci.org/qemu/qemu/builds/
474821674
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <
20190103150951.17592-3-philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Philippe Mathieu-Daudé [Thu, 3 Jan 2019 15:09:50 +0000 (16:09 +0100)]
configure: Let the TARGET_GPROF var use the regular 'y' for Yes
All other variables are set using 'y', which is what the rules.mak
functions expect to parse.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <
20190103150951.17592-2-philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Peter Maydell [Fri, 11 Jan 2019 16:45:59 +0000 (16:45 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/misc-
20190111-pull-request' into staging
misc: fix seabios cross build.
# gpg: Signature made Fri 11 Jan 2019 11:46:47 GMT
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/misc-
20190111-pull-request:
roms: seabios: Rename CROSS_COMPILE to CROSS_PREFIX
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 11 Jan 2019 15:46:09 +0000 (15:46 +0000)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* HAX support for Linux hosts (Alejandro)
* esp bugfixes (Guenter)
* Windows build cleanup (Marc-André)
* checkpatch logic improvements (Paolo)
* coalesced range bugfix (Paolo)
* switch testsuite to TAP (Paolo)
* QTAILQ rewrite (Paolo)
* block/iscsi.c cancellation fixes (Stefan)
* improve selection of the default accelerator (Thomas)
# gpg: Signature made Fri 11 Jan 2019 14:47:40 GMT
# gpg: using RSA key
BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (34 commits)
avoid TABs in files that only contain a few
remove space-tab sequences
scripts: add script to convert multiline comments into 4-line format
hw/watchdog/wdt_i6300esb: remove a unnecessary comment
checkpatch: warn about qemu/queue.h head structs that are not typedef-ed
qemu/queue.h: simplify reverse access to QTAILQ
qemu/queue.h: reimplement QTAILQ without pointer-to-pointers
qemu/queue.h: remove Q_TAILQ_{HEAD,ENTRY}
qemu/queue.h: typedef QTAILQ heads
qemu/queue.h: leave head structs anonymous unless necessary
vfio: make vfio_address_spaces static
qemu/queue.h: do not access tqe_prev directly
test: replace gtester with a TAP driver
test: execute g_test_run when tests are skipped
qga: drop < Vista compatibility
build-sys: build with Vista API by default
build-sys: move windows defines in osdep.h header
build-sys: don't include windows.h, osdep.h does it
scsi: esp: Defer command completion until previous interrupts have been handled
esp-pci: Fix status register write erase control
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Paolo Bonzini [Thu, 13 Dec 2018 22:37:37 +0000 (23:37 +0100)]
avoid TABs in files that only contain a few
Most files that have TABs only contain a handful of them. Change
them to spaces so that we don't confuse people.
disas, standard-headers, linux-headers and libdecnumber are imported
from other projects and probably should be exempted from the check.
Outside those, after this patch the following files still contain both
8-space and TAB sequences at the beginning of the line. Many of them
have a majority of TABs, or were initially committed with all tabs.
bsd-user/i386/target_syscall.h
bsd-user/x86_64/target_syscall.h
crypto/aes.c
hw/audio/fmopl.c
hw/audio/fmopl.h
hw/block/tc58128.c
hw/display/cirrus_vga.c
hw/display/xenfb.c
hw/dma/etraxfs_dma.c
hw/intc/sh_intc.c
hw/misc/mst_fpga.c
hw/net/pcnet.c
hw/sh4/sh7750.c
hw/timer/m48t59.c
hw/timer/sh_timer.c
include/crypto/aes.h
include/disas/bfd.h
include/hw/sh4/sh.h
libdecnumber/decNumber.c
linux-headers/asm-generic/unistd.h
linux-headers/linux/kvm.h
linux-user/alpha/target_syscall.h
linux-user/arm/nwfpe/double_cpdo.c
linux-user/arm/nwfpe/fpa11_cpdt.c
linux-user/arm/nwfpe/fpa11_cprt.c
linux-user/arm/nwfpe/fpa11.h
linux-user/flat.h
linux-user/flatload.c
linux-user/i386/target_syscall.h
linux-user/ppc/target_syscall.h
linux-user/sparc/target_syscall.h
linux-user/syscall.c
linux-user/syscall_defs.h
linux-user/x86_64/target_syscall.h
slirp/cksum.c
slirp/if.c
slirp/ip.h
slirp/ip_icmp.c
slirp/ip_icmp.h
slirp/ip_input.c
slirp/ip_output.c
slirp/mbuf.c
slirp/misc.c
slirp/sbuf.c
slirp/socket.c
slirp/socket.h
slirp/tcp_input.c
slirp/tcpip.h
slirp/tcp_output.c
slirp/tcp_subr.c
slirp/tcp_timer.c
slirp/tftp.c
slirp/udp.c
slirp/udp.h
target/cris/cpu.h
target/cris/mmu.c
target/cris/op_helper.c
target/sh4/helper.c
target/sh4/op_helper.c
target/sh4/translate.c
tcg/sparc/tcg-target.inc.c
tests/tcg/cris/check_addo.c
tests/tcg/cris/check_moveq.c
tests/tcg/cris/check_swap.c
tests/tcg/multiarch/test-mmap.c
ui/vnc-enc-hextile-template.h
ui/vnc-enc-zywrle.h
util/envlist.c
util/readline.c
The following have only TABs:
bsd-user/i386/target_signal.h
bsd-user/sparc64/target_signal.h
bsd-user/sparc64/target_syscall.h
bsd-user/sparc/target_signal.h
bsd-user/sparc/target_syscall.h
bsd-user/x86_64/target_signal.h
crypto/desrfb.c
hw/audio/intel-hda-defs.h
hw/core/uboot_image.h
hw/sh4/sh7750_regnames.c
hw/sh4/sh7750_regs.h
include/hw/cris/etraxfs_dma.h
linux-user/alpha/termbits.h
linux-user/arm/nwfpe/fpopcode.h
linux-user/arm/nwfpe/fpsr.h
linux-user/arm/syscall_nr.h
linux-user/arm/target_signal.h
linux-user/cris/target_signal.h
linux-user/i386/target_signal.h
linux-user/linux_loop.h
linux-user/m68k/target_signal.h
linux-user/microblaze/target_signal.h
linux-user/mips64/target_signal.h
linux-user/mips/target_signal.h
linux-user/mips/target_syscall.h
linux-user/mips/termbits.h
linux-user/ppc/target_signal.h
linux-user/sh4/target_signal.h
linux-user/sh4/termbits.h
linux-user/sparc64/target_syscall.h
linux-user/sparc/target_signal.h
linux-user/x86_64/target_signal.h
linux-user/x86_64/termbits.h
pc-bios/optionrom/optionrom.h
slirp/mbuf.h
slirp/misc.h
slirp/sbuf.h
slirp/tcp.h
slirp/tcp_timer.h
slirp/tcp_var.h
target/i386/svm.h
target/sparc/asi.h
target/xtensa/core-dc232b/xtensa-modules.inc.c
target/xtensa/core-dc233c/xtensa-modules.inc.c
target/xtensa/core-de212/core-isa.h
target/xtensa/core-de212/xtensa-modules.inc.c
target/xtensa/core-fsf/xtensa-modules.inc.c
target/xtensa/core-sample_controller/core-isa.h
target/xtensa/core-sample_controller/xtensa-modules.inc.c
target/xtensa/core-test_kc705_be/core-isa.h
target/xtensa/core-test_kc705_be/xtensa-modules.inc.c
tests/tcg/cris/check_abs.c
tests/tcg/cris/check_addc.c
tests/tcg/cris/check_addcm.c
tests/tcg/cris/check_addoq.c
tests/tcg/cris/check_bound.c
tests/tcg/cris/check_ftag.c
tests/tcg/cris/check_int64.c
tests/tcg/cris/check_lz.c
tests/tcg/cris/check_openpf5.c
tests/tcg/cris/check_sigalrm.c
tests/tcg/cris/crisutils.h
tests/tcg/cris/sys.c
tests/tcg/i386/test-i386-ssse3.c
ui/vgafont.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
20181213223737.11793-3-pbonzini@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 13 Dec 2018 22:37:36 +0000 (23:37 +0100)]
remove space-tab sequences
There are not many, and they are all simple mistakes that ended up
being committed. Remove them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
20181213223737.11793-2-pbonzini@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 14 Dec 2018 09:33:22 +0000 (10:33 +0100)]
scripts: add script to convert multiline comments into 4-line format
Since we're adding checkpatch rules to enforce 4-line multiline comment
format, i.e. with lone /* and */, this script can be run on existing
code so that the comment style does not become inconsistent within a
file.
The alternative to awk-in-a-shell-script could be Perl, which also
supports -i directly, but a2p seems to have bitrotten and I didn't quite
feel like writing this twice...
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peng Hao [Sat, 8 Dec 2018 07:18:31 +0000 (15:18 +0800)]
hw/watchdog/wdt_i6300esb: remove a unnecessary comment
The registered memory region of i6300esb is not suitable for coalesced
mmio, because a write for the region may trigger an immediate action
and can't be delayed.
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Message-Id: <
1544253511-82742-1-git-send-email-peng.hao2@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 6 Dec 2018 11:01:40 +0000 (12:01 +0100)]
checkpatch: warn about qemu/queue.h head structs that are not typedef-ed
These are just like any other struct or union, so they should have
CamelCase typedefs.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 6 Dec 2018 12:10:34 +0000 (13:10 +0100)]
qemu/queue.h: simplify reverse access to QTAILQ
The new definition of QTAILQ does not require passing the headname,
remove it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 6 Dec 2018 11:01:53 +0000 (12:01 +0100)]
qemu/queue.h: reimplement QTAILQ without pointer-to-pointers
QTAILQ is a doubly linked list, with a pointer-to-pointer to the last
element from the head, and the previous element from each node.
But if you squint enough, QTAILQ becomes a combination of a singly-linked
forwards list, and another singly-linked list which goes backwards and
is circular. This is the idea that lets QTAILQ implement reverse
iteration: only, because the backwards list points inside the node,
accessing the previous element needs to go two steps back and one
forwards.
What this patch does is implement it in these terms, without actually
changing the in-memory layout at all. The coexistence of the two lists
is realized by making QTAILQ_HEAD and QTAILQ_ENTRY unions of the forwards
pointer and a generic QTailQLink node. Thq QTailQLink can walk the list in
both directions; the union is needed so that the forwards pointer can
have the correct type, as a sort of poor man's template. While there
are other ways to get the same layout without a union, this one has
the advantage of simpler operation in the debugger, because the fields
tqh_first and tqe_next still exist as before the patch. Those fields are
also used by scripts/qemugdb/mtree.py, so it's a good idea to preserve them.
The advantage of the new representation is that the two-back-one-forward
dance done by backwards accesses can be done all while operating on
QTailQLinks. No casting to the head struct is needed anymore because,
even though the QTailQLink's forward pointer is a void *, we can use
typeof to recover the correct type. This patch only changes the
implementation, not the interface. The next patch will remove the head
struct name from the backwards visit macros.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 10 Dec 2018 17:03:06 +0000 (18:03 +0100)]
qemu/queue.h: remove Q_TAILQ_{HEAD,ENTRY}
These are not present for other kinds of queue, and unused.
Zap them before more changes are made to the QTAILQ
implementation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 6 Dec 2018 10:56:15 +0000 (11:56 +0100)]
qemu/queue.h: typedef QTAILQ heads
This will be needed when we change the QTAILQ head and elem structs
to unions. However, it is also consistent with the usage elsewhere
in QEMU for other list head structs (see for example FsMountList).
Note that most QTAILQs only need their name in order to do backwards
walks. Those do not break with the struct->union change, and anyway
the change will also remove the need to name heads when doing backwards
walks, so those are not touched here.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 6 Dec 2018 10:58:10 +0000 (11:58 +0100)]
qemu/queue.h: leave head structs anonymous unless necessary
Most list head structs need not be given a name. In most cases the
name is given just in case one is going to use QTAILQ_LAST, QTAILQ_PREV
or reverse iteration, but this does not apply to lists of other kinds,
and even for QTAILQ in practice this is only rarely needed. In addition,
we will soon reimplement those macros completely so that they do not
need a name for the head struct. So clean up everything, not giving a
name except in the rare case where it is necessary.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 10 Dec 2018 16:58:54 +0000 (17:58 +0100)]
vfio: make vfio_address_spaces static
It is not used outside hw/vfio/common.c, so it does not need to
be extern.
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 6 Dec 2018 22:00:09 +0000 (23:00 +0100)]
qemu/queue.h: do not access tqe_prev directly
Use the QTAILQ_IN_USE macro instead, it does the same thing but the next
patch will change it to a different definition.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 29 Nov 2018 17:45:31 +0000 (18:45 +0100)]
test: replace gtester with a TAP driver
gtester is deprecated by upstream glib (see for example the announcement
at https://blog.gtk.org/2018/07/11/news-from-glib-2-58/) and it does
not support tests that call g_test_skip in some glib stable releases.
glib suggests instead using Automake's TAP support, which gtest itself
supports since version 2.38 (QEMU's minimum requirement is 2.40).
We do not support Automake, but we can use Automake's code to beautify
the TAP output. I chose to use the Perl copy rather than the shell/awk
one, with some changes so that it can accept TAP through stdin, in order
to reuse Perl's TAP parsing package. This also avoids duplicating the
parser between tap-driver.pl and tap-merge.pl.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
1543513531-1151-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Fri, 11 Jan 2019 13:35:48 +0000 (13:35 +0000)]
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging
Machine queue, 2019-01-10
* Simplify GlobalProperty array declarations (Eduardo Habkost)
* Deprecate cpu-add commands (Kashyap Chamarthy)
* range/memory-device cleanups (David Hildenbrand)
* Fix -device scsi-hd,help regression (Marc-André Lureau)
* Fix crash when -global generates multiple warnings (Eduardo
Habkost)
# gpg: Signature made Thu 10 Jan 2019 14:28:23 GMT
# gpg: using RSA key
2807936F984DC5A6
# 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/machine-next-pull-request:
qom: Don't keep error value between object_property_parse() calls
qdev: fix -device scsi-hd,help regression
machine: Use shorter format for GlobalProperty arrays
machine: Eliminate unnecessary stringify() usage
spapr: Eliminate SPAPR_PCI_2_7_MMIO_WIN_SIZE macro
memory-device: rewrite address assignment using ranges
range: add some more functions
Mention that QMP 'cpu-add' will be deprecated
Update that HMP 'cpu-add' is deprecated in 4.0
qemu-deprecated.texi: Rename the HMP section
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Paolo Bonzini [Thu, 29 Nov 2018 17:45:30 +0000 (18:45 +0100)]
test: execute g_test_run when tests are skipped
Sometimes a test's main() function recognizes that the environment
does not support the test, and therefore exits. In this case, we
still should run g_test_run() so that a TAP harness will print the
test plan ("1..0") and the test will be marked as skipped.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
1543513531-1151-2-git-send-email-pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Marc-André Lureau [Thu, 22 Nov 2018 11:00:39 +0000 (15:00 +0400)]
qga: drop < Vista compatibility
Building QGA for XP seems possible so far: the dependency on
libqemuutil.a implies building qemu-thread-win32.c, which requires
Vista API since commit
12f8def0 (v2.9). But qemu-thread isn't being
used in QGA, the resulting binary may still work on XP. XP is no
longer supported for the past 4.5y, it's time to drop support for it.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20181122110039.15972-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Marc-André Lureau [Thu, 22 Nov 2018 11:00:38 +0000 (15:00 +0400)]
build-sys: build with Vista API by default
Both qemu & qga build with Vista API by default already, by defining
_WIN32_WINNT 0x0600. Set it globally in osdep.h instead.
This replaces WINVER by _WIN32_WINNT in osdep.h. WINVER doesn't seem
to be really useful these days.
(see also https://blogs.msdn.microsoft.com/oldnewthing/
20070411-00/?p=27283)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20181122110039.15972-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Marc-André Lureau [Thu, 22 Nov 2018 11:00:37 +0000 (15:00 +0400)]
build-sys: move windows defines in osdep.h header
This removes some clutter in compilation logging, and allows some
easier tweaking per compilation unit/CFLAGS overriding.
Note that we can't move those define in os-win32.h, since they must be
set before the first system headers are included.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20181122110039.15972-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Marc-André Lureau [Thu, 22 Nov 2018 11:00:36 +0000 (15:00 +0400)]
build-sys: don't include windows.h, osdep.h does it
osdep.h will also define the available Windows API version for QEMU.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20181122110039.15972-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Guenter Roeck [Thu, 29 Nov 2018 17:17:42 +0000 (09:17 -0800)]
scsi: esp: Defer command completion until previous interrupts have been handled
The guest OS reads RSTAT, RSEQ, and RINTR, and expects those registers
to reflect a consistent state. However, it is possible that the registers
can change after RSTAT was read, but before RINTR is read, when
esp_command_complete() is called.
Guest OS qemu
-------- ----
[handle interrupt]
Read RSTAT
esp_command_complete()
RSTAT = STAT_ST
esp_dma_done()
RSTAT |= STAT_TC
RSEQ = 0
RINTR = INTR_BS
Read RSEQ
Read RINTR RINTR = 0
RSTAT &= ~STAT_TC
RSEQ = SEQ_CD
The guest OS would then try to handle INTR_BS combined with an old
value of RSTAT. This sometimes resulted in lost events, spurious
interrupts, guest OS confusion, and stalled SCSI operations.
A typical guest error log (observed with various versions of Linux)
looks as follows.
scsi host1: Spurious irq, sreg=13.
...
scsi host1: Aborting command [
84531f10:2a]
scsi host1: Current command [
f882eea8:35]
scsi host1: Queued command [
84531f10:2a]
scsi host1: Active command [
f882eea8:35]
scsi host1: Dumping command log
scsi host1: ent[15] CMD val[44] sreg[90] seqreg[00] sreg2[00] ireg[20] ss[00] event[0c]
scsi host1: ent[16] CMD val[01] sreg[90] seqreg[00] sreg2[00] ireg[20] ss[02] event[0c]
scsi host1: ent[17] CMD val[43] sreg[90] seqreg[00] sreg2[00] ireg[20] ss[02] event[0c]
scsi host1: ent[18] EVENT val[0d] sreg[92] seqreg[04] sreg2[00] ireg[18] ss[00] event[0c]
...
Defer handling command completion until previous interrupts have been
handled to fix the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Guenter Roeck [Wed, 28 Nov 2018 21:56:10 +0000 (13:56 -0800)]
esp-pci: Fix status register write erase control
Per AM53C974 datasheet, definition of "SCSI Bus and Control (SBAC)"
register:
Bit 24 'STATUS' Write Erase Control
This bit controls the Write Erase feature on bits 3:1 and bit 6 of the DMA
Status Register ((B)+54h). When this bit is programmed to '1', the state
of bits 3:1 are preserved when read. Bits 3:1 are only cleared when a '1'
is written to the corresponding bit location. For example, to clear bit 1,
the value of '0000_0010b' should be written to the register. When the DMA
Status Preserve bit is '0', bits 3:1 are cleared when read.
The status register is currently defined to bit 12, not bit 24.
Also, its implementation is reversed: The status is auto-cleared if
the bit is set to 1, and must be cleared explicitly when the bit is
set to 0. This results in spurious interrupts reported by the Linux
kernel, and in some cases even results in stalled SCSI operations.
Set SBAC_STATUS to bit 24 and reverse the logic to fix the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-Id: <
1543442171-24863-1-git-send-email-linux@roeck-us.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefan Hajnoczi [Thu, 15 Feb 2018 11:15:26 +0000 (11:15 +0000)]
block/iscsi: cancel libiscsi task when ABORT TASK TMF completes
The libiscsi iscsi_task_mgmt_async() API documentation says:
abort_task will also cancel the scsi task. The callback for the scsi
task will be invoked with SCSI_STATUS_CANCELLED
The libiscsi implementation does not fulfil this promise. The task's
callback is not invoked and its struct iscsi_pdu remains in the internal
list (effectively leaked).
This patch invokes the libiscsi iscsi_scsi_cancel_task() API to force
the task's callback to be invoked with SCSI_STATUS_CANCELLED when the
ABORT TASK TMF completes and the task's callback hasn't been invoked
yet.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <
20180215111526.2464-1-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefan Hajnoczi [Sat, 3 Feb 2018 06:16:21 +0000 (07:16 +0100)]
block/iscsi: fix ioctl cancel use-after-free
iscsi_aio_cancel() does not increment the request's reference count,
causing a use-after-free when ABORT TASK finishes after the request has
already completed.
There are some additional issues with iscsi_aio_cancel():
1. Several ABORT TASKs may be sent for the same task if
iscsi_aio_cancel() is invoked multiple times. It's better to avoid
this just in case the command identifier is reused.
2. The iscsilun->mutex protection is missing in iscsi_aio_cancel().
Reported-by: Felipe Franciosi <felipe@nutanix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <
20180203061621.7033-4-stefanha@redhat.com>
Reviewed-by: Felipe Franciosi <felipe@nutanix.com>
Tested-by: Sreejith Mohanan <sreejit.mohanan@nutanix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefan Hajnoczi [Sat, 3 Feb 2018 06:16:20 +0000 (07:16 +0100)]
block/iscsi: take iscsilun->mutex in iscsi_timed_check_events()
Commit
d045c466d9e62b4321fadf586d024d54ddfd8bd4 ("iscsi: do not use
aio_context_acquire/release") introduced iscsilun->mutex but appears to
have overlooked iscsi_timed_check_events() when introducing the mutex.
iscsi_service() and iscsi_set_events() must be called with
iscsilun->mutex held.
iscsi_timed_check_events() is invoked from the AioContext and does not
take the mutex.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <
20180203061621.7033-3-stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefan Hajnoczi [Sat, 3 Feb 2018 06:16:19 +0000 (07:16 +0100)]
block/iscsi: drop unused IscsiAIOCB->buf field
The IscsiAIOCB->buf field has not been used since commit
e49ab19fcaa617ad6cdfe1ac401327326b6a2552 ("block/iscsi: bump libiscsi
requirement to 1.9.0"). It used to be a linear buffer for old libiscsi
versions that didn't support scatter-gather. The minimum libiscsi
version supports scatter-gather so we don't linearize buffers anymore.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <
20180203061621.7033-2-stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Alexandro Sanchez Bach [Thu, 15 Nov 2018 01:33:30 +0000 (17:33 -0800)]
hax: Support for Linux hosts
Intel HAXM supports now 32-bit and 64-bit Linux hosts. This patch includes
the corresponding userland changes.
Since the Darwin userland backend is POSIX-compliant, the hax-darwin.{c,h}
files have been renamed to hax-posix.{c,h}. This prefix is consistent with
the naming used in the rest of QEMU.
Signed-off-by: Alexandro Sanchez Bach <asanchez@kryptoslogic.com>
Message-Id: <
20181115013331.65820-1-asanchez@kryptoslogic.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 28 Nov 2018 16:28:45 +0000 (17:28 +0100)]
memory: update coalesced_range on transaction_commit
The e1000 driver calls memory_region_add_coalescing but
kvm_coalesce_mmio_region is never called for those regions. The bug
dates back to the introduction of the memory region API; to fix it,
delete and re-add coalesced MMIO ranges when building the FlatViews.
Because coalesced MMIO regions apply to all address spaces, the
has_coalesced_range flag has to be changed into an int.
Fixes: 093bc2cd885e ("Hierarchical memory region API")
Reported-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 28 Nov 2018 16:29:45 +0000 (17:29 +0100)]
memory: avoid unnecessary coalesced_io_del operations
Store whether the FlatRange has had any coalesced I/O ranges applied,
and if not avoid calling coalesced_io_del. This is useful in preparation
for the next patch, which will call coalesced_io_del when rendering
memory regions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 28 Nov 2018 09:42:06 +0000 (10:42 +0100)]
memory: extract flat_range_coalesced_io_{del,add}
Extract two new functions from memory_region_update_coalesced_range_as.
To avoid duplication in the creation of the MemoryRegionSection, use
MEMORY_LISTENER_UPDATE_REGION instead of MEMORY_LISTENER_CALL
to invoke the listener callback.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 28 Nov 2018 16:22:25 +0000 (17:22 +0100)]
pam: wrap MemoryRegion initialization in a transaction
This avoids a few re-rendering of the memory AddressSpace.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 29 Nov 2018 08:52:58 +0000 (09:52 +0100)]
checkpatch: colorize output to terminal
Add optional colors to make seeing message types a bit easier.
The default is to show them on a tty.
Inspired by Linux commits
57230297116fa ("checkpatch: colorize output
to terminal") and
737c0767758b ("checkpatch: change format of --color
argument to --color[=WHEN]").
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Paolo Bonzini [Thu, 29 Nov 2018 08:35:47 +0000 (09:35 +0100)]
checkpatch: improve handling of multiple patches or files
Similar to how patchew output looks like for multiple patches,
say what file or patch is being tested _before_ emitting errors.
This is clearer to a human that scans the output from top to
bottom.
In addition, provide a truncated commit hash and subject instead of
the full hash, and process the commits first-to-last rather than
last-to-first.
Inspired by Linux commit
0dea9f1eef86bedacad91b6f652ca1ab0d08854c
("checkpatch: reduce number of `git log` calls with --git", 2016-03-20).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 29 Nov 2018 08:31:41 +0000 (09:31 +0100)]
checkpatch: check Signed-off-by in --mailback mode
Pull the test before the anticipated exits from the process sub.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 29 Nov 2018 08:30:59 +0000 (09:30 +0100)]
checkpatch: fix premature exit when no input or --mailback
In some cases, checkpatch's process subroutine is exiting the
whole process. This is wrong, just return from the subroutine
instead.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Thomas Huth [Fri, 5 Oct 2018 14:13:12 +0000 (16:13 +0200)]
accel: Improve selection of the default accelerator
When compiling with "--disable-tcg", we currently still use "tcg"
as default accelerator. "kvm" should be used in this case instead.
Also, some downstream distros provide QEMU binaries which have "kvm"
in their names (e.g. "qemu-kvm" on RHEL or "kvm" on Ubuntu) that use
KVM by default - and some users might want to do something similar
with upstream binaries, too. Accomodate them by using "kvm:tcg" as
default when we detect such a binary name.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <
1538748792-19444-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Roman Bolshakov [Wed, 21 Nov 2018 20:37:21 +0000 (23:37 +0300)]
roms: seabios: Rename CROSS_COMPILE to CROSS_PREFIX
SeaBIOS introduced CROSS_PREFIX in 2013 but it's not set in roms
Makefile.
With the change it's possible to cross-compile SeaBIOS on macOS,
if acpica/iasl is installed:
cd roms
export PATH=/path/to/cross/x86_64-unknown-linux-gnu/bin:$PATH
make bios system=unknown-linux-gnu
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-id:
20181121203720.75916-1-r.bolshakov@yadro.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>