Peter Maydell [Wed, 20 Jul 2016 13:34:08 +0000 (14:34 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-07-19' into staging
QAPI patches for 2016-07-19
# gpg: Signature made Tue 19 Jul 2016 19:35:27 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-qapi-2016-07-19:
net: Use correct type for bool flag
qapi: Change Netdev into a flat union
block: Simplify drive-mirror
block: Simplify block_set_io_throttle
qapi: Implement boxed types for commands/events
qapi: Plumb in 'boxed' to qapi generator lower levels
qapi-event: Simplify visit of non-implicit data
qapi: Drop useless gen_err_check()
qapi: Add type.is_empty() helper
qapi: Hide tag_name data member of variants
qapi: Special case c_name() for empty type
qapi: Require all branches of flat union enum to be covered
net: use Netdev instead of NetClientOptions in client init
qapi: change QmpInputVisitor to QSLIST
qapi: change QmpOutputVisitor to QSLIST
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 20 Jul 2016 11:48:18 +0000 (12:48 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-
20160719' into staging
target-arm queue:
* fix two minor Coverity complaints
# gpg: Signature made Tue 19 Jul 2016 18:02:34 BST
# gpg: using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-
20160719:
arm_gicv3: Add assert()s to tell Coverity that offsets are aligned
target-arm: Fix unreachable code in gicv3_class_name()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 20 Jul 2016 10:32:12 +0000 (11:32 +0100)]
Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-
20160719-2' into staging
linux-user fixes before 2.7 freeze, fix commit message
# gpg: Signature made Tue 19 Jul 2016 14:18:54 BST
# gpg: using RSA key 0xB44890DEDE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg: aka "Riku Voipio <riku.voipio@linaro.org>"
# Primary key fingerprint: FF82 03C8 C391 98AE 0581 41EF B448 90DE DE3C 9BC0
* remotes/riku/tags/pull-linux-user-
20160719-2:
linux-user: AArch64 has sync_file_range, not sync_file_range2
linux-user: Fix type for SIOCATMARK ioctl
linux-user: define missing sparc syscalls
linux-user: Fix terminal control ioctls
linux-user: Add some new blk ioctls
linux-user: Handle short lengths in host_to_target_sockaddr()
linux-user: Forget about synchronous signal once it is delivered
linux-user: Correct type for LOOP_GET_STATUS{,64} ioctls
linux-user: Correct type for BLKSSZGET
linux-user: Add loop control ioctls
linux-user: Check sigsetsize argument to syscalls
linux-user: add nested netlink types
linux-user: convert sockaddr_ll from host to target
linux-user: add fd_trans helper in do_recvfrom()
linux-user: fix netlink memory corruption
linux-user: fd_trans_*_data() returns the length
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eric Blake [Thu, 14 Jul 2016 03:50:24 +0000 (21:50 -0600)]
net: Use correct type for bool flag
is_netdev is only used as a bool, so make it one.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-14-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:23 +0000 (21:50 -0600)]
qapi: Change Netdev into a flat union
This is a mostly-mechanical conversion that creates a new flat
union 'Netdev' QAPI type that covers all the branches of the
former 'NetClientOptions' simple union, where the branches are
now listed in a new 'NetClientDriver' enum rather than generated
from the simple union. The existence of a flat union has no
change to the command line syntax accepted for new code, and
will make it possible for a future patch to switch the QMP
command to parse a boxed union for no change to valid QMP; but
it does have some ripple effect on the C code when dealing with
the new types.
While making the conversion, note that the 'NetLegacy' type
remains unchanged: it applies only to legacy command line options,
and will not be ported to QMP, so it should remain a wrapper
around a simple union; to avoid confusion, the type named
'NetClientOptions' is now gone, and we introduce 'NetLegacyOptions'
in its place. Then, in the C code, we convert from NetLegacy to
Netdev as soon as possible, so that the bulk of the net stack
only has to deal with one QAPI type, not two. Note that since
the old legacy code always rejected 'hubport', we can just omit
that branch from the new 'NetLegacyOptions' simple union.
Based on an idea originally by Zoltán Kővágó <DirtY.iCE.hu@gmail.com>:
Message-Id: <
01a527fbf1a5de880091f98cf011616a78adeeee.
1441627176.git.DirtY.iCE.hu@gmail.com>
although the sed script in that patch no longer applies due to
other changes in the tree since then, and I also did some manual
cleanups (such as fixing whitespace to keep checkpatch happy).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-13-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Fixup from Eric squashed in]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Peter Maydell [Mon, 11 Jul 2016 18:22:52 +0000 (19:22 +0100)]
arm_gicv3: Add assert()s to tell Coverity that offsets are aligned
Coverity complains that the GICR_IPRIORITYR case in gicv3_readl()
can overflow an array, because it doesn't know that the offsets
passed to that function must be word aligned. Add some assert()s
which hopefully tell Coverity that this isn't possible.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
1468261372-17508-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Mon, 11 Jul 2016 18:09:12 +0000 (19:09 +0100)]
target-arm: Fix unreachable code in gicv3_class_name()
Coverity complains that the exit() in gicv3_class_name()
can be unreachable, because if TARGET_AARCH64 is defined
then all code paths return before reaching it. Move the
exit() up to the error_report() that it belongs with.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id:
1468260552-8400-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Tue, 19 Jul 2016 14:04:36 +0000 (15:04 +0100)]
disas: Fix ATTRIBUTE_UNUSED define clash with ALSA headers
disas/bfd.h defines ATTRIBUTE_UNUSED, but unfortunately the
ALSA system headers also define this macro, which means that
you can get a compilation failure if building with ALSA and
any files happen to include the alsa headers before bfd.h
rather than the other way around.
This is unfortunate namespace pollution by the ALSA headers but
we can work around it. Add an #ifndef guard to bfd.h and remove
the unnecessary extra definition in disas/arm.c to fix this.
Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id:
1468937076-21503-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Tue, 19 Jul 2016 14:08:05 +0000 (15:08 +0100)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* two old patches from prospective GSoC students
* i386 -kernel device tree support
* Coverity fix
* memory usage improvement from Peter
* checkpatch fix
* g_path_get_dirname cleanup
* caching of block status for iSCSI
# gpg: Signature made Tue 19 Jul 2016 07:43:41 BST
# gpg: using RSA key 0xBFFBD25F78C7AE83
# 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:
target-i386: Remove redundant HF_SOFTMMU_MASK
block/iscsi: allow caching of the allocation map
block/iscsi: fix rounding in iscsi_allocationmap_set
Move README to markdown
cpu-exec: Move down some declarations in cpu_exec()
exec: avoid realloc in phys_map_node_reserve
checkpatch: consider git extended headers valid patches
megasas: remove useless check for cmd->frame
compiler: never omit assertions if using a static analysis tool
hw/i386: add device tree support
Changed malloc to g_malloc, free to g_free in bsd-user/qemu.h
use g_path_get_dirname instead of dirname
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 19 Jul 2016 13:41:41 +0000 (14:41 +0100)]
Merge remote-tracking branch 'remotes/stsquad/tags/pull-travis-
20160718-1' into staging
Make IRC a little less noisy
# gpg: Signature made Mon 18 Jul 2016 16:42:57 BST
# gpg: using RSA key 0xFBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* remotes/stsquad/tags/pull-travis-
20160718-1:
.travis.yml: Disable IRC build status updates from forks
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 15 Jul 2016 16:28:06 +0000 (17:28 +0100)]
linux-user: AArch64 has sync_file_range, not sync_file_range2
The AArch64 Linux ABI syscall 84 is sync_file_range, not
sync_file_range2 (in the kernel it uses the asm-generic
headers and does not define __ARCH_WANT_SYNC_FILE_RANGE2).
Update our TARGET_NR_* definitions accordingly.
This fixes the sync_file_range syscall which otherwise
gets its arguments in the wrong order.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Fri, 15 Jul 2016 11:09:31 +0000 (12:09 +0100)]
linux-user: Fix type for SIOCATMARK ioctl
The SIOCATMARK ioctl takes an argument which should be a
pointer to an integer where the kernel will write the result.
We were incorrectly declaring it as TYPE_NULL which would mean
it would always fail (with EFAULT) when it should succeed.
Correct the type.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Laurent Vivier [Fri, 8 Jul 2016 19:47:08 +0000 (21:47 +0200)]
linux-user: define missing sparc syscalls
NR_lookup_dcookie, NR_fadvise64, NR_fadvise64_64
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Timothy Pearson [Sun, 19 Jun 2016 00:15:35 +0000 (19:15 -0500)]
linux-user: Fix terminal control ioctls
TIOCGPTN and related terminal control ioctls were not converted to the guest ioctl format on x86_64 targets. Convert these ioctls to enable terminal functionality on x86_64 guests.
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Tue, 19 Jul 2016 13:07:27 +0000 (14:07 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-vnc-
20160719-1' into staging
vnc: bugfixes for -rc0
# gpg: Signature made Tue 19 Jul 2016 08:27:05 BST
# gpg: using RSA key 0x4CB6D8EED3E87138
# 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/pull-vnc-
20160719-1:
vnc-tight: fix regression with libxenstore
vnc-enc-tight: fix off-by-one bug
vnc: make sure we finish disconnect
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 19 Jul 2016 12:41:31 +0000 (13:41 +0100)]
Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-signed' into staging
Update OpenBIOS images
# gpg: Signature made Tue 19 Jul 2016 07:42:30 BST
# gpg: using RSA key 0x5BC2C56FAE0F321F
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>"
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C C9C4 5BC2 C56F AE0F 321F
* remotes/mcayland/tags/qemu-openbios-signed:
Update OpenBIOS images to
e79bca6 built from submodule.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 1 Jul 2016 18:46:04 +0000 (19:46 +0100)]
linux-user: Add some new blk ioctls
Add some new blk ioctls (these are 0x12,119 through
to 0x12,127). Several of these are used by mke2fs; this silences
the warnings:
mke2fs 1.42.12 (29-Aug-2014)
Unsupported ioctl: cmd=0x127b
Unsupported ioctl: cmd=0x127a
warning: Unable to get device geometry for /dev/loop5
Unsupported ioctl: cmd=0x127c
Unsupported ioctl: cmd=0x127c
Unsupported ioctl: cmd=0x1277
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Thu, 7 Jul 2016 14:44:43 +0000 (15:44 +0100)]
linux-user: Handle short lengths in host_to_target_sockaddr()
If userspace specifies a short buffer for a target sockaddr,
the kernel will only copy in as much as it has space for
(or none at all if the length is zero) -- see the kernel
move_addr_to_user() function. Mimic this in QEMU's
host_to_target_sockaddr() routine.
In particular, this fixes a segfault running the LTP
recvfrom01 test, where the guest makes a recvfrom()
call with a bad buffer pointer and other parameters which
cause the kernel to set the addrlen to zero; because we
did not skip the attempt to swap the sa_family field we
segfaulted on the bad address.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Wed, 6 Jul 2016 14:09:29 +0000 (15:09 +0100)]
linux-user: Forget about synchronous signal once it is delivered
Commit
655ed67c2a248cf which switched synchronous signals to
benig recorded in ts->sync_signal rather than in a queue
with every other signal had a bug: we failed to clear
the flag indicating that a synchronous signal was pending
when we delivered it. This meant that we would take the signal
again and again every time the guest made a syscall.
(This is a bug introduced in my refactoring of Timothy Baldwin's
original code.)
Fix this by passing in the struct emulated_sigtable* to
handle_pending_signal(), so that we clear the pending flag
in the ts->sync_signal struct when handling a synchronous signal.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Tue, 5 Jul 2016 15:36:29 +0000 (16:36 +0100)]
linux-user: Correct type for LOOP_GET_STATUS{,64} ioctls
The LOOP_GET_STATUS and LOOP_GET_STATUS64 ioctls were incorrectly
defined as IOC_W rather than IOC_R, which meant we weren't
correctly copying the information back from the kernel to the guest.
The loop_info64 structure definition was also missing a member
and using the wrong type for several 32-bit fields.
In particular, this meant that "kpartx -d image.img" didn't work
and "losetup -a" behaved strangely. Correct the ioctl type definitions.
Reported-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Mon, 4 Jul 2016 16:06:18 +0000 (17:06 +0100)]
linux-user: Correct type for BLKSSZGET
The BLKSSZGET ioctl takes an argument which is a pointer to an int.
We were incorrectly declaring it to take a pointer to a long, which
meant that we would incorrectly write to memory which we should not
if the guest is a 64-bit architecture.
In particular, kpartx uses this ioctl to write to an int on the
stack, which tends to result in it crashing immediately.
Reported-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Mon, 4 Jul 2016 16:06:17 +0000 (17:06 +0100)]
linux-user: Add loop control ioctls
Add support for the /dev/loop-control ioctls:
LOOP_CTL_ADD
LOOP_CTL_REMOVE
LOOP_CTL_GET_FREE
[RV: fixed to apply to new header guards]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Thu, 30 Jun 2016 13:23:24 +0000 (14:23 +0100)]
linux-user: Check sigsetsize argument to syscalls
Many syscalls which take a sigset_t argument also take an argument
giving the size of the sigset_t. The kernel insists that this
matches its idea of the type size and fails EINVAL if it is not.
Implement this logic in QEMU. (This mostly just means some LTP test
cases which check error cases now pass.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Laurent Vivier [Mon, 27 Jun 2016 16:54:30 +0000 (18:54 +0200)]
linux-user: add nested netlink types
Nested types are used by the kernel to send link information and
protocol properties.
We can see following errors with "ip link show":
Unimplemented nested type 26
Unimplemented nested type 26
Unimplemented nested type 18
Unimplemented nested type 26
Unimplemented nested type 18
Unimplemented nested type 26
This patch implements nested types 18 (IFLA_LINKINFO) and
26 (IFLA_AF_SPEC).
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Laurent Vivier [Sun, 26 Jun 2016 22:18:22 +0000 (00:18 +0200)]
linux-user: convert sockaddr_ll from host to target
As we convert sockaddr for AF_PACKET family for sendto() (target to
host) we need also to convert this for getsockname() (host to target).
arping uses getsockname() to get the the interface address and uses
this address with sendto().
Tested with:
/sbin/arping -D -q -c2 -I eno1 192.168.122.88
...
getsockname(3, {sa_family=AF_PACKET, proto=0x806, if2,
pkttype=PACKET_HOST, addr(6)={1,
10c37b6b9a76}, [18]) = 0
...
sendto(3, "..." 28, 0,
{sa_family=AF_PACKET, proto=0x806, if2, pkttype=PACKET_HOST,
addr(6)={1,
ffffffffffff}, 20) = 28
...
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Laurent Vivier [Tue, 21 Jun 2016 17:51:15 +0000 (19:51 +0200)]
linux-user: add fd_trans helper in do_recvfrom()
Fix passwd using netlink audit.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Laurent Vivier [Tue, 21 Jun 2016 17:51:14 +0000 (19:51 +0200)]
linux-user: fix netlink memory corruption
Netlink is byte-swapping data in the guest memory (it's bad).
It's ok when the data come from the host as they are generated by the
host.
But it doesn't work when data come from the guest: the guest can
try to reuse these data whereas they have been byte-swapped.
This is what happens in glibc:
glibc generates a sequence number in nlh.nlmsg_seq and calls
sendto() with this nlh. In sendto(), we byte-swap nlmsg.seq.
Later, after the recvmsg(), glibc compares nlh.nlmsg_seq with
sequence number given in return, and of course it fails (hangs),
because nlh.nlmsg_seq is not valid anymore.
The involved code in glibc is:
sysdeps/unix/sysv/linux/check_pf.c:make_request()
...
req.nlh.nlmsg_seq = time (NULL);
...
if (TEMP_FAILURE_RETRY (__sendto (fd, (void *) &req, sizeof (req), 0,
(struct sockaddr *) &nladdr,
sizeof (nladdr))) < 0)
<here req.nlh.nlmsg_seq has been byte-swapped>
...
do
{
...
ssize_t read_len = TEMP_FAILURE_RETRY (__recvmsg (fd, &msg, 0));
...
struct nlmsghdr *nlmh;
for (nlmh = (struct nlmsghdr *) buf;
NLMSG_OK (nlmh, (size_t) read_len);
nlmh = (struct nlmsghdr *) NLMSG_NEXT (nlmh, read_len))
{
<we compare nlmh->nlmsg_seq with corrupted req.nlh.nlmsg_seq>
if (nladdr.nl_pid != 0 || (pid_t) nlmh->nlmsg_pid != pid
|| nlmh->nlmsg_seq != req.nlh.nlmsg_seq)
continue;
...
else if (nlmh->nlmsg_type == NLMSG_DONE)
/* We found the end, leave the loop. */
done = true;
}
}
while (! done);
As we have a continue on "nlmh->nlmsg_seq != req.nlh.nlmsg_seq",
"done" cannot be set to "true" and we have an infinite loop.
It's why commands like "apt-get update" or "dnf update hangs".
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Laurent Vivier [Tue, 21 Jun 2016 17:51:13 +0000 (19:51 +0200)]
linux-user: fd_trans_*_data() returns the length
fd_trans_target_to_host_data() and fd_trans_host_to_target_data() must
return the length of processed data.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Peter Maydell [Tue, 19 Jul 2016 12:00:35 +0000 (13:00 +0100)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Tue 19 Jul 2016 03:33:40 BST
# gpg: using RSA key 0xEF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.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: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
e1000e: fix building without CONFIG_VMXNET3_PCI
MAINTAINERS: release Scott from being a rocker maintainer
tap: fix memory leak on failure to create a multiqueue tap device
net: fix incorrect argument to iov_to_buf
net: fix incorrect access to pointer
e1000e: fix incorrect access to pointer
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eric Blake [Thu, 14 Jul 2016 22:37:58 +0000 (16:37 -0600)]
block: Simplify drive-mirror
Now that we can support boxed commands, use it to greatly
reduce the number of parameters (and likelihood of getting
out of sync) when adjusting drive-mirror parameters.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-Id: <
1468535878-3760-1-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:21 +0000 (21:50 -0600)]
block: Simplify block_set_io_throttle
Now that we can support boxed commands, use it to greatly
reduce the number of parameters (and likelihood of getting
out of sync) when adjusting throttle parameters.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <
1468468228-27827-11-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:20 +0000 (21:50 -0600)]
qapi: Implement boxed types for commands/events
Turn on the ability to pass command and event arguments in
a single boxed parameter, which must name a non-empty type
(although the type can be a struct with all optional members).
For structs, it makes it possible to pass a single qapi type
instead of a breakout of all struct members (useful if the
arguments are already in a struct or if the number of members
is large); for other complex types, it is now possible to use
a union or alternate as the data for a command or event.
The empty type may be technically feasible if needed down the
road, but it's easier to forbid it now and relax things to allow
it later, than it is to allow it now and have to special case
how the generated 'q_empty' type is handled (see commit
7ce106a9
for reasons why nothing is generated for the empty type). An
alternate type is never considered empty, but now that a boxed
type can be either an object or an alternate, we have to provide
a trivial QAPISchemaAlternateType.is_empty(). The new call to
arg_type.is_empty() during QAPISchemaCommand.check() requires
that we first check the type in question; but there is no chance
of introducing a cycle since objects do not refer back to commands.
We still have a split in syntax checking between ad-hoc parsing
up front (merely validates that 'boxed' has a sane value) and
during .check() methods (if 'boxed' is set, then 'data' must name
a non-empty user-defined type).
Generated code is unchanged, as long as no client uses the
new feature.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-10-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Test files renamed to *-boxed-*]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:19 +0000 (21:50 -0600)]
qapi: Plumb in 'boxed' to qapi generator lower levels
The next patch will add support for passing a qapi union type
as the 'data' of a command. But to do that, the user function
for implementing the command, as called by the generated
marshal command, must take the corresponding C struct as a
single boxed pointer, rather than a breakdown into one
parameter per member. Even without a union, being able to use
a C struct rather than a list of parameters can make it much
easier to handle coding with QAPI.
This patch adds the internal plumbing of a 'boxed' flag
associated with each command and event. In several cases,
this means adding indentation, with one new dead branch and
the remaining branch being the original code more deeply
nested; this was done so that the new implementation in the
next patch is easier to review without also being mixed with
indentation changes.
For this patch, no behavior or generated output changes, other
than the testsuite outputting the value of the new flag
(always False for now).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-9-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Identifier box renamed to boxed in two places]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:18 +0000 (21:50 -0600)]
qapi-event: Simplify visit of non-implicit data
Commit
7ce106a9 documented why we don't generated a visit_type_FOO()
for implicit types; and therefore events with an anonymous type for
'data' have to open-code a visit. Note that the open-coded visit in
qapi-event.c is slightly different from what is done in
qapi-visit.c for normal types, in part because we don't have to
check for *obj being NULL or free things on error. But where the
type is not implicit, it is nicer to reuse the normal visit instead
of open-coding a duplicate.
At the moment, the only event with a non-implicit 'data' is in the
testsuite, where test-qapi-event.c changes as follows:
|@@ -155,6 +155,7 @@ void qapi_event_send___org_qemu_x_event(
| __org_qemu_x_Struct param = {
| __org_qemu_x_member1, (char *)__org_qemu_x_member2, has_q_wchar_t, q_wchar_t
| };
|+ __org_qemu_x_Struct *arg = ¶m;
|
| emit = qmp_event_get_func_emit();
| if (!emit) {
|@@ -164,16 +165,7 @@ void qapi_event_send___org_qemu_x_event(
| qmp = qmp_event_build_dict("__ORG.QEMU_X-EVENT");
|
| v = qmp_output_visitor_new(&obj);
|-
|- visit_start_struct(v, "__ORG.QEMU_X-EVENT", NULL, 0, &err);
|- if (err) {
|- goto out;
|- }
|- visit_type___org_qemu_x_Struct_members(v, ¶m, &err);
|- if (!err) {
|- if (!err) {
|- visit_check_struct(v, &err);
|- }
|- visit_end_struct(v, NULL);
|+ visit_type___org_qemu_x_Struct(v, "__ORG.QEMU_X-EVENT", &arg, &err);
| if (err) {
| goto out;
| }
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-8-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:17 +0000 (21:50 -0600)]
qapi: Drop useless gen_err_check()
Ever since commit
12f254f removed the last parameterization
of gen_err_check(), it no longer makes sense to hide the three
lines of generated C code behind a macro call. Just inline it
into the remaining users.
No change to generated code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-7-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:16 +0000 (21:50 -0600)]
qapi: Add type.is_empty() helper
In the near future, we want to lift our artificial restriction of
no variants at the top level of an event, at which point the
currently open-coded check for empty members will become
insufficient. Factor it out into a new helper method is_empty()
now, and future-proof it by checking variants, too, along with an
assert that it is not used prior to the completion of .check().
Update places that were checking for (non-)empty .members to use
the new helper.
All of the current callers assert that there are no variants (either
directly, or by qapi.py asserting that base types have no variants),
so this is not a semantic change.
No change to generated code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-6-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:15 +0000 (21:50 -0600)]
qapi: Hide tag_name data member of variants
Clean up the only remaining external use of the tag_name field of
QAPISchemaObjectTypeVariants, by explicitly listing the generated
'type' tag for all variants in the testsuite (you can still tell
simple unions by the -wrapper types). Then we can mark the
tag_name field as private by adding a leading underscore to prevent
any further use.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-5-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:14 +0000 (21:50 -0600)]
qapi: Special case c_name() for empty type
Commit
7ce106a rendered QAPISchemaObjectType.c_name() redundant,
since it now does nothing more than delegate to its superclass.
However, rather than deleting it, we can restore part of the
assertion that was removed in that commit, to prove that we never
emit the empty type directly in generated code, but rather
special-case it as a built-in that makes other aspects of code
generation easier to reason about.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-4-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 14 Jul 2016 03:50:13 +0000 (21:50 -0600)]
qapi: Require all branches of flat union enum to be covered
We were previously enforcing that all flat union branches were
found in the corresponding enum, but not that all enum values
were covered by branches. The resulting generated code would
abort() if the user passes the uncovered enum value.
We don't automatically treat non-present branches in a flat
union as empty types, for symmetry with simple unions (there,
the enum type is generated from the list of all branches, so
there is no way to omit a branch but still have it be part of
the union).
A later patch will add shorthand so that branches that are empty
in flat unions can be declared as 'branch':{} instead of
'branch':'Empty', to avoid the need for an otherwise useless
explicit empty type. [Such shorthand for simple unions is a bit
harder to justify, since we would still have to generate a
wrapper type that parses 'data':{}, rather than truly being an
empty branch with no additional siblings to the 'type' member.]
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-3-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Kővágó, Zoltán [Thu, 14 Jul 2016 03:50:12 +0000 (21:50 -0600)]
net: use Netdev instead of NetClientOptions in client init
This way we no longer need NetClientOptions and can convert Netdev
into a flat union.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <
93ffdfed7054529635e6acb935150d95dc173a12.
1441627176.git.DirtY.iCE.hu@gmail.com>
[rework net_client_init1() to pass Netdev by copying from NetdevLegacy,
rather than merging the two types - which means that we still need
NetClientOptions after all. Rebase to qapi changes. The bulk of the
patch is mechanical, replacing 'opts' by 'netdev->opts', while
net_client_init1() takes care of converting between legacy and modern
types.]
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1468468228-27827-2-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Paolo Bonzini [Thu, 7 Jul 2016 15:53:18 +0000 (17:53 +0200)]
qapi: change QmpInputVisitor to QSLIST
This saves a lot of memory compared to a statically-sized array,
or at least 24kb could be considered a lot on an Atari ST.
It also makes the code more similar to QmpOutputVisitor.
This removes the limit on the depth of a QObject that can be processed
into a QAPI tree. This is not a problem because QObjects can be
considered trusted; the text received on the QMP wire is untrusted
input, but the JSON parser already takes pains to limit the QObject tree
it creates. We don't need the QMP input visitor to limit it again.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
1467906798-5312-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Commit message typo fixed]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Paolo Bonzini [Thu, 7 Jul 2016 15:53:17 +0000 (17:53 +0200)]
qapi: change QmpOutputVisitor to QSLIST
This saves a little memory compared to the doubly-linked QTAILQ.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <
1467906798-5312-2-git-send-email-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Comment tweaked to avoid long line]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Peter Maydell [Tue, 19 Jul 2016 10:47:06 +0000 (11:47 +0100)]
Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging
# gpg: Signature made Mon 18 Jul 2016 23:53:15 BST
# gpg: using RSA key 0x7DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"
# Primary key fingerprint: FAEB 9711 A12C F475 812F 18F2 88A9 064D 1835 61EB
# Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76 CBD0 7DEF 8106 AAFC 390E
* remotes/jnsnow/tags/ide-pull-request:
block: ignore flush requests when storage is clean
tests: in IDE and AHCI tests perform DMA write before flushing
ide: set retry_unit for PIO and FLUSH requests
ide: refactor retry_unit set and clear into separate function
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 19 Jul 2016 09:54:49 +0000 (10:54 +0100)]
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
# gpg: Signature made Mon 18 Jul 2016 22:59:55 BST
# gpg: using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/tracing-pull-request:
trace: Add QAPI/QMP interfaces to query and control per-vCPU tracing state
trace: Allow event name pattern in "info trace-events"
trace: Conditionally trace events based on their per-vCPU state
trace: Add per-vCPU tracing states for events with the 'vcpu' property
trace: Cosmetic changes on fast-path tracing
disas: Remove unused macro '_'
trace: Identify events with the 'vcpu' property
trace: [bsd-user] Commandline arguments to control tracing
trace: [linux-user] Commandline arguments to control tracing
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 19 Jul 2016 08:02:05 +0000 (09:02 +0100)]
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-
20160718.0' into staging
VFIO update 2016-07-18
One fix for 2.7-rc0 which hides the ARI extended capability, fixing
multifunction support in PCIe configurations where the assigned device
function topology does not match the host (Alex Williamson)
# gpg: Signature made Mon 18 Jul 2016 18:02:27 BST
# gpg: using RSA key 0x239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg: aka "Alex Williamson <alex@shazbot.org>"
# gpg: aka "Alex Williamson <alwillia@redhat.com>"
# gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B 8A90 239B 9B6E 3BB0 8B22
* remotes/awilliam/tags/vfio-update-
20160718.0:
vfio/pci: Hide ARI capability
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mark Cave-Ayland [Tue, 19 Jul 2016 06:41:52 +0000 (07:41 +0100)]
Update OpenBIOS images to
e79bca6 built from submodule.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Sergey Fedorov [Fri, 15 Jul 2016 17:58:45 +0000 (20:58 +0300)]
target-i386: Remove redundant HF_SOFTMMU_MASK
'HF_SOFTMMU_MASK' is only set when 'CONFIG_SOFTMMU' is defined. So
there's no need in this flag: test 'CONFIG_SOFTMMU' instead.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20160715175852.30749-6-sergey.fedorov@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Lieven [Mon, 18 Jul 2016 08:52:20 +0000 (10:52 +0200)]
block/iscsi: allow caching of the allocation map
until now the allocation map was used only as a hint if a cluster
is allocated or not. If a block was not allocated (or Qemu had
no info about the allocation status) a get_block_status call was
issued to check the allocation status and possibly avoid
a subsequent read of unallocated sectors. If a block known to be
allocated the get_block_status call was omitted. In the other case
a get_block_status call was issued before every read to avoid
the necessity for a consistent allocation map. To avoid the
potential overhead of calling get_block_status for each and
every read request this took only place for the bigger requests.
This patch enhances this mechanism to cache the allocation
status and avoid calling get_block_status for blocks where
the allocation status has been queried before. This allows
for bypassing the read request even for smaller requests and
additionally omits calling get_block_status for known to be
unallocated blocks.
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <
1468831940-15556-3-git-send-email-pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Lieven [Mon, 18 Jul 2016 08:52:19 +0000 (10:52 +0200)]
block/iscsi: fix rounding in iscsi_allocationmap_set
when setting clusters as alloacted the boundaries have
to be expanded. As Paolo pointed out the calculation of
the number of clusters is wrong:
Suppose cluster_sectors is 2, sector_num = 1, nb_sectors = 6:
In the "mark allocated" case, you want to set 0..8, i.e.
cluster_num=0, nb_clusters=4.
0--.--2--.--4--.--6--.--8
<--|_________________|--> (<--> = expanded)
Instead you are setting nb_clusters=3, so that 6..8 is not marked.
0--.--2--.--4--.--6--.--8
<--|______________|!!! (! = wrong)
Cc: qemu-stable@nongnu.org
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <
1468831940-15556-2-git-send-email-pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pranith Kumar [Fri, 15 Jul 2016 04:31:11 +0000 (00:31 -0400)]
Move README to markdown
Move the README file to markdown so that it makes the github page look
prettier. I know that github repo is a mirror and not the official
repo, but I think it doesn't hurt to have it in markdown format.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <
20160715043111.29007-1-bobby.prani@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Evgeny Yakovlev [Mon, 18 Jul 2016 19:39:52 +0000 (22:39 +0300)]
block: ignore flush requests when storage is clean
Some guests (win2008 server for example) do a lot of unnecessary
flushing when underlying media has not changed. This adds additional
overhead on host when calling fsync/fdatasync.
This change introduces a write generation scheme in BlockDriverState.
Current write generation is checked against last flushed generation to
avoid unnessesary flushes.
The problem with excessive flushing was found by a performance test
which does parallel directory tree creation (from 2 processes).
Results improved from 0.424 loops/sec to 0.432 loops/sec.
Each loop creates 10^3 directories with 10 files in each.
This affected some blkdebug testcases that were expecting error logs from
failure-injected flushes which are now skipped entirely
(tests 026 071 089).
This also affects the performance of block jobs and thus BLOCK_JOB_READY
events for driver-mirror and active block-commit commands now arrives
faster, before QMP send successfully returns to caller (tests 141 144).
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1468870792-7411-5-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Evgeny Yakovlev [Mon, 18 Jul 2016 19:39:51 +0000 (22:39 +0300)]
tests: in IDE and AHCI tests perform DMA write before flushing
Due to changes in flush behaviour clean disks stopped generating
flush_to_disk events and IDE and AHCI tests that test flush commands
started to fail.
This change adds additional DMA writes to affected tests before sending
flush commands so that bdrv_flush actually generates flush_to_disk event.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1468870792-7411-4-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Evgeny Yakovlev [Mon, 18 Jul 2016 19:39:50 +0000 (22:39 +0300)]
ide: set retry_unit for PIO and FLUSH requests
The following sequence of tests discovered a problem in IDE emulation:
1. Send DMA write to IDE device 0
2. Send CMD_FLUSH_CACHE to same IDE device which will be failed by block
layer using blkdebug script in tests/ide-test:test_retry_flush
When doing DMA request ide/core.c will set s->retry_unit to s->unit in
ide_start_dma. When dma completes ide_set_inactive sets retry_unit to -1.
After that ide_flush_cache runs and fails thanks to blkdebug.
ide_flush_cb calls ide_handle_rw_error which asserts that s->retry_unit
== s->unit. But s->retry_unit is still -1 after previous DMA completion
and flush does not use anything related to retry.
This patch restricts retry unit assertion only to ops that actually use
retry logic.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1468870792-7411-3-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Evgeny Yakovlev [Mon, 18 Jul 2016 19:39:49 +0000 (22:39 +0300)]
ide: refactor retry_unit set and clear into separate function
Code to set and clear state associated with retry in moved into
ide_set_retry and ide_clear_retry to make adding retry setups easier.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1468870792-7411-2-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:57 +0000 (12:53 +0200)]
trace: Add QAPI/QMP interfaces to query and control per-vCPU tracing state
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:51 +0000 (12:53 +0200)]
trace: Allow event name pattern in "info trace-events"
Homogenizes the command capabilities with QMP.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:46 +0000 (12:53 +0200)]
trace: Conditionally trace events based on their per-vCPU state
Events with the 'vcpu' property are conditionally emitted according to
their per-vCPU state. Other events are emitted normally based on their
global tracing state.
Note that the per-vCPU condition check applies to all tracing backends.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:41 +0000 (12:53 +0200)]
trace: Add per-vCPU tracing states for events with the 'vcpu' property
Each vCPU gets a 'trace_dstate' bitmap to control the per-vCPU dynamic
tracing state of events with the 'vcpu' property.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:35 +0000 (12:53 +0200)]
trace: Cosmetic changes on fast-path tracing
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:30 +0000 (12:53 +0200)]
disas: Remove unused macro '_'
Eliminates a future compilation error when UI code includes the tracing
headers (indirectly pulling "disas/bfd.h" through "qom/cpu.h") and
GLib's i18n '_' macro.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Mon, 11 Jul 2016 10:53:24 +0000 (12:53 +0200)]
trace: Identify events with the 'vcpu' property
A new event attribute 'cpu_id' is added to have a separate ID
space ('TRACE_VCPU_*') for all events with the 'vcpu' property.
These are later used to identify which events are enabled on each vCPU.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Fri, 15 Jul 2016 17:08:43 +0000 (19:08 +0200)]
trace: [bsd-user] Commandline arguments to control tracing
[Changed const char *trace_file to char *trace_file since it's a
heap-allocated string that needs to be freed. This type is also
returned by trace_opt_parse() and used in vl.c.
Also fixed coding style on for(;;) and else statement as suggested by
Eric Blake <eblake@redhat.com> since the patch modifies these lines or
close enough.
--Stefan]
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id:
146860252322.30668.
18276041739086338328.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Lluís Vilanova [Fri, 15 Jul 2016 17:08:38 +0000 (19:08 +0200)]
trace: [linux-user] Commandline arguments to control tracing
[Changed const char *trace_file to char *trace_file since it's a
heap-allocated string that needs to be freed. This type is also
returned by trace_opt_parse() and used in vl.c.
--Stefan]
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id:
146860251784.30668.
17339867835129075077.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Peter Maydell [Mon, 18 Jul 2016 17:13:01 +0000 (18:13 +0100)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
# gpg: Signature made Mon 18 Jul 2016 17:58:27 BST
# gpg: using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/block-pull-request:
MAINTAINERS: Add include/block/aio.h to block I/O path section
virtio-blk: dataplane cleanup
checkpatch: consider git extended headers valid patches
aio-posix: remove useless parameter
linux-aio: prevent submitting more than MAX_EVENTS
aio_ctx_check: follow CODING_STYLE
linux-aio: share one LinuxAioState within an AioContext
spec/parallels: fix a mistake
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Williamson [Mon, 18 Jul 2016 16:55:17 +0000 (10:55 -0600)]
vfio/pci: Hide ARI capability
QEMU supports ARI on downstream ports and assigned devices may support
ARI in their extended capabilities. The endpoint ARI capability
specifies the next function, such that the OS doesn't need to walk
each possible function, however this next function is relative to the
host, not the guest. This leads to device discovery issues when we
combine separate functions into virtual multi-function packages in a
guest. For example, SR-IOV VFs are not enumerated by simply probing
the function address space, therefore the ARI next-function field is
zero. When we combine multiple VFs together as a multi-function
device in the guest, the guest OS identifies ARI is enabled, relies on
this next-function field, and stops looking for additional function
after the first is found.
Long term we should expose the ARI capability to the guest to enable
configurations with more than 8 functions per slot, but this requires
additional QEMU PCI infrastructure to manage the next-function field
for multiple, otherwise independent devices. In the short term,
hiding this capability allows equivalent functionality to what we
currently have on non-express chipsets.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Pranith Kumar [Mon, 27 Jun 2016 18:13:22 +0000 (14:13 -0400)]
.travis.yml: Disable IRC build status updates from forks
We want the travis build bot to post notifications on IRC only for the
master qemu repository and not the various forks/branches of
others. Currently there is no direct option to restrict the updates to
one repository. This is being worked upon by the developers and
tracked in https://github.com/travis-ci/travis-ci/issues/1094.
Until such time, we can use the workaround as posted in
ref. https://github.com/facebook/flow/pull/1822.
This basically creates an ecrypted string which decrypts to qemu IRC
channel only on "qemu/qemu" repo and not on the forks. This enables
the build bot to notify the IRC only for the main repo.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Fam Zheng [Mon, 18 Jul 2016 07:19:47 +0000 (15:19 +0800)]
MAINTAINERS: Add include/block/aio.h to block I/O path section
This file is actually the header for async.c and aio-*.c., so add it to
the same section.
Suggested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id:
1468826387-10473-1-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cao jin [Mon, 18 Jul 2016 04:05:49 +0000 (12:05 +0800)]
virtio-blk: dataplane cleanup
No need duplicate the judgment, there is one in function entry.
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id:
1468814749-14510-1-git-send-email-caoj.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Fri, 15 Jul 2016 09:46:54 +0000 (10:46 +0100)]
checkpatch: consider git extended headers valid patches
Renames look like this with git-diff(1) when diff.renames = true is set:
diff --git a/a b/b
similarity index 100%
rename from a
rename to b
This raises the "Does not appear to be a unified-diff format patch"
error because checkpatch.pl only considers a diff valid if it contains
at least one "@@" hunk.
This patch accepts renames and copies too so that checkpatch.pl exits
successfully when a diff only renames/copies files. The git diff
extended header format is described on the git-diff(1) man page.
Reported-by: Colin Lord <clord@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id:
1468576014-28788-1-git-send-email-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cao jin [Fri, 15 Jul 2016 10:28:44 +0000 (18:28 +0800)]
aio-posix: remove useless parameter
Parameter **errp of aio_context_setup() is useless, remove it
and clean up the related code.
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Fam Zheng <famz@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id:
1468578524-23433-1-git-send-email-caoj.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Roman Pen [Wed, 13 Jul 2016 13:03:24 +0000 (15:03 +0200)]
linux-aio: prevent submitting more than MAX_EVENTS
Invoking io_setup(MAX_EVENTS) we ask kernel to create ring buffer for us
with specified number of events. But kernel ring buffer allocation logic
is a bit tricky (ring buffer is page size aligned + some percpu allocation
are required) so eventually more than requested events number is allocated.
From a userspace side we have to follow the convention and should not try
to io_submit() more or logic, which consumes completed events, should be
changed accordingly. The pitfall is in the following sequence:
MAX_EVENTS = 128
io_setup(MAX_EVENTS)
io_submit(MAX_EVENTS)
io_submit(MAX_EVENTS)
/* now 256 events are in-flight */
io_getevents(MAX_EVENTS) = 128
/* we can handle only 128 events at once, to be sure
* that nothing is pended the io_getevents(MAX_EVENTS)
* call must be invoked once more or hang will happen. */
To prevent the hang or reiteration of io_getevents() call this patch
restricts the number of in-flights, which is now limited to MAX_EVENTS.
Signed-off-by: Roman Pen <roman.penyaev@profitbricks.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id:
1468415004-31755-1-git-send-email-roman.penyaev@profitbricks.com
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-devel@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cao jin [Thu, 14 Jul 2016 13:10:43 +0000 (21:10 +0800)]
aio_ctx_check: follow CODING_STYLE
replace tab with spaces
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Message-id:
1468501843-14927-1-git-send-email-caoj.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Paolo Bonzini [Mon, 4 Jul 2016 16:33:20 +0000 (18:33 +0200)]
linux-aio: share one LinuxAioState within an AioContext
This has better performance because it executes fewer system calls
and does not use a bottom half per disk.
Originally proposed by Ming Lei.
[Changed #include "raw-aio.h" to "block/raw-aio.h" in win32-aio.c to fix
build error as reported by Peter Maydell <peter.maydell@linaro.org>.
--Stefan]
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1467650000-51385-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
squash! linux-aio: share one LinuxAioState within an AioContext
Vladimir Sementsov-Ogievskiy [Thu, 30 Jun 2016 08:19:30 +0000 (11:19 +0300)]
spec/parallels: fix a mistake
We have only one flag for now - Empty Image flag. The patch fixes unused
bits specification and marks bit 1 as usused.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Peter Maydell [Mon, 18 Jul 2016 10:24:15 +0000 (11:24 +0100)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.7-
20160718' into staging
ppc patch queue 2016-07-18
Here's what ought to be the final ppc pull request before the 2.7 hard
freeze. This set contains a rework of the DBDMA device for Mac
platforms, and some assorted cleanups and bugfixes.
# gpg: Signature made Mon 18 Jul 2016 05:35:27 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: 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: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.7-
20160718:
ppc: Yet another fix for the huge page support detection mechanism
target-ppc: fix left shift overflow in hpte_page_shift
ppc/mmu-hash64: Remove duplicated #include statement
ppc: abort if compat property contains an unknown value
spapr: Ensure CPU cores are added contiguously and removed in LIFO order
vfio/spapr: Remove stale ioctl() call
ppc: Fix support for odd MSR combinations
dbdma: reset io->processing flag for unassigned DBDMA channel rw accesses
dbdma: set FLUSH bit upon reception of flush command for unassigned DBDMA channels
dbdma: fix load_word/store_word value endianness
dbdma: fix endian of DBDMA_CMDPTR_LO during branch
dbdma: add per-channel debugging enabled via DEBUG_DBDMA_CHANMASK
dbdma: always define DBDMA_DPRINTF and enable debug with DEBUG_DBDMA
spapr: fix core unplug crash
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jason Wang [Tue, 12 Jul 2016 08:28:23 +0000 (16:28 +0800)]
e1000e: fix building without CONFIG_VMXNET3_PCI
e1000e needs net_tx_pkt.o and net_rx_pkt.o too.
Cc: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com>
Cc: Leonid Bloch <leonid.bloch@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Jiri Pirko [Mon, 11 Jul 2016 07:49:42 +0000 (09:49 +0200)]
MAINTAINERS: release Scott from being a rocker maintainer
As requested by Scott, removing him.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Paolo Bonzini [Fri, 15 Jul 2016 08:56:07 +0000 (10:56 +0200)]
tap: fix memory leak on failure to create a multiqueue tap device
Reported by Coverity.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Paolo Bonzini [Fri, 15 Jul 2016 08:41:47 +0000 (10:41 +0200)]
net: fix incorrect argument to iov_to_buf
Coverity reports a "suspicious sizeof" which is indeed wrong.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Paolo Bonzini [Fri, 15 Jul 2016 08:43:32 +0000 (10:43 +0200)]
net: fix incorrect access to pointer
This is not dereferencing the pointer, and instead checking only
the value of the pointer.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Paolo Bonzini [Fri, 15 Jul 2016 08:44:38 +0000 (10:44 +0200)]
e1000e: fix incorrect access to pointer
This is not dereferencing the pointer, and instead checking only
the value of the pointer.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Thomas Huth [Fri, 15 Jul 2016 08:10:25 +0000 (10:10 +0200)]
ppc: Yet another fix for the huge page support detection mechanism
Commit
86b50f2e1bef ("Disable huge page support if it is not available
for main RAM") already made sure that huge page support is not announced
to the guest if the normal RAM of non-NUMA configurations is not backed
by a huge page filesystem. However, there is one more case that can go
wrong: NUMA is enabled, but the RAM of the NUMA nodes are not configured
with huge page support (and only the memory of a DIMM is configured with
it). When QEMU is started with the following command line for example,
the Linux guest currently crashes because it is trying to use huge pages
on a memory region that does not support huge pages:
qemu-system-ppc64 -enable-kvm ... -m 1G,slots=4,maxmem=32G -object \
memory-backend-file,policy=default,mem-path=/hugepages,size=1G,id=mem-mem1 \
-device pc-dimm,id=dimm-mem1,memdev=mem-mem1 -smp 2 \
-numa node,nodeid=0 -numa node,nodeid=1
To fix this issue, we've got to make sure to disable huge page support,
too, when there is a NUMA node that is not using a memory backend with
huge page support.
Fixes: 86b50f2e1befc33407bdfeb6f45f7b0d2439a740
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Paolo Bonzini [Fri, 15 Jul 2016 15:22:10 +0000 (17:22 +0200)]
target-ppc: fix left shift overflow in hpte_page_shift
ps->pte_enc is a 32-bit value, which is shifted left and then compared
to a 64-bit value. It needs a cast before the shift.
Reported by Coverity.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Thomas Huth [Thu, 14 Jul 2016 08:14:18 +0000 (10:14 +0200)]
ppc/mmu-hash64: Remove duplicated #include statement
No need to include error-report.h twice here.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Wed, 13 Jul 2016 10:00:17 +0000 (12:00 +0200)]
ppc: abort if compat property contains an unknown value
It is not possible to set the compat property to an unknown value with
powerpc_set_compat(). Something must have gone terribly wrong in QEMU,
if we detect an "Internal error" in powerpc_get_compat(). Let's abort then.
This patch also drops the "max_compat ? *max_compat : -1" construct. It is
useless since max_compat is dereferenced a few lines above.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Bharata B Rao [Wed, 13 Jul 2016 06:50:20 +0000 (12:20 +0530)]
spapr: Ensure CPU cores are added contiguously and removed in LIFO order
If CPU core addition or removal is allowed in random order leading to
holes in the core id range (and hence in the cpu_index range), migration
can fail as migration with holes in cpu_index range isn't yet handled
correctly.
Prevent this situation by enforcing the addition in contiguous order
and removal in LIFO order so that we never end up with holes in
cpu_index range.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson [Tue, 12 Jul 2016 06:54:03 +0000 (16:54 +1000)]
vfio/spapr: Remove stale ioctl() call
This ioctl() call to VFIO_IOMMU_SPAPR_TCE_REMOVE was left over from an
earlier version of the code and has since been folded into
vfio_spapr_remove_window().
It wasn't caught because although the argument structure has been removed,
the libc function remove() means this didn't trigger a compile failure.
The ioctl() was also almost certain to fail silently and harmlessly with
the bogus argument, so this wasn't caught in testing.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Benjamin Herrenschmidt [Sat, 9 Jul 2016 03:41:31 +0000 (13:41 +1000)]
ppc: Fix support for odd MSR combinations
MacOS uses an architecturally illegal MSR combination that
seems nonetheless supported by 32-bit processors, which is
to have MSR[PR]=1 and one or more of MSR[DR/IR/EE]=0.
This adds support for it. To work properly we need to also
properly include support for PR=1,{I,D}R=0 to the MMU index
used by the qemu TLB.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mark Cave-Ayland [Sun, 10 Jul 2016 18:08:58 +0000 (19:08 +0100)]
dbdma: reset io->processing flag for unassigned DBDMA channel rw accesses
Otherwise MacOS 9 hangs upon shutdown.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mark Cave-Ayland [Sun, 10 Jul 2016 18:08:57 +0000 (19:08 +0100)]
dbdma: set FLUSH bit upon reception of flush command for unassigned DBDMA channels
This fixes MacOS 9 whereby it continually flushes and polls the status bits
until they are set to indicate a successful flush.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mark Cave-Ayland [Sun, 10 Jul 2016 18:08:56 +0000 (19:08 +0100)]
dbdma: fix load_word/store_word value endianness
The values to read/write to/from physical memory are copied directly to the
physical address with no endian swapping required.
Also add some extra information to debugging output while we are here.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mark Cave-Ayland [Sun, 10 Jul 2016 18:08:55 +0000 (19:08 +0100)]
dbdma: fix endian of DBDMA_CMDPTR_LO during branch
The current DBDMA command is stored in little-endian format, so make sure
we convert it to match our CPU when updating the DBDMA_CMDPTR_LO register.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mark Cave-Ayland [Sun, 10 Jul 2016 18:08:54 +0000 (19:08 +0100)]
dbdma: add per-channel debugging enabled via DEBUG_DBDMA_CHANMASK
By default large amounts of DBDMA debugging are produced when often it is just
1 or 2 channels that are of interest. Introduce DEBUG_DBDMA_CHANMASK to allow
the developer to select the channels of interest at compile time, and then
further add the extra channel information to each debug statement where
possible.
Also clearly mark the start/end of DBDMA_run_bh to allow tracking the bottom
half execution.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mark Cave-Ayland [Sun, 10 Jul 2016 18:08:53 +0000 (19:08 +0100)]
dbdma: always define DBDMA_DPRINTF and enable debug with DEBUG_DBDMA
Enabling DBDMA_DPRINTF unconditionally ensures that any errors in debug
statements are picked up immediately.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Greg Kurz [Fri, 8 Jul 2016 13:12:07 +0000 (15:12 +0200)]
spapr: fix core unplug crash
If the host has 8 threads/core and the guest is started with:
-smp cores=1,threads=4,maxcpus=12
It is possible to crash QEMU by doing:
(qemu) device_add host-spapr-cpu-core,core-id=16,id=foo
(qemu) device_del foo
Segmentation fault
This happens because spapr_core_unplug() assumes cpu_dt_id == core_id.
As long as cpu_dt_id is derived from the non-table cpu_index, this is
only true when you plug cores with contiguous ids.
It is safer to be consistent: the DR connector was created with an
index that is immediately written to cc->core_id, and spapr_core_plug()
also relies on cc->core_id.
Let's use it also in spapr_core_unplug().
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Sergey Fedorov [Fri, 15 Jul 2016 19:31:23 +0000 (22:31 +0300)]
cpu-exec: Move down some declarations in cpu_exec()
This will fix a compiler warning with -Wclobbered:
http://lists.nongnu.org/archive/html/qemu-devel/2016-07/msg03347.html
Reported-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Message-Id: <
20160715193123.28113-1-sergey.fedorov@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Lieven [Fri, 15 Jul 2016 10:03:50 +0000 (12:03 +0200)]
exec: avoid realloc in phys_map_node_reserve
this is the first step in reducing the brk heap fragmentation
created by the map->nodes memory allocation. Since the introduction
of RCU the freeing of the PhysPageMaps is delayed so that sometimes
several hundred are allocated at the same time.
Even worse the memory for map->nodes is allocated and shortly
afterwards reallocated. Since the number of nodes it grows
to in the end is the same for all PhysPageMaps remember this value
and at least avoid the reallocation.
The large number of simultaneous allocations (about 450 x 70kB in
my configuration) has to be addressed later.
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <
1468577030-21097-1-git-send-email-pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefan Hajnoczi [Fri, 15 Jul 2016 09:46:54 +0000 (10:46 +0100)]
checkpatch: consider git extended headers valid patches
Renames look like this with git-diff(1) when diff.renames = true is set:
diff --git a/a b/b
similarity index 100%
rename from a
rename to b
This raises the "Does not appear to be a unified-diff format patch"
error because checkpatch.pl only considers a diff valid if it contains
at least one "@@" hunk.
This patch accepts renames and copies too so that checkpatch.pl exits
successfully when a diff only renames/copies files. The git diff
extended header format is described on the git-diff(1) man page.
Reported-by: Colin Lord <clord@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <
1468576014-28788-1-git-send-email-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 15 Jul 2016 16:42:53 +0000 (18:42 +0200)]
megasas: remove useless check for cmd->frame
megasas_enqueue_frame always returns with non-NULL cmd->frame.
Remove the "else" part as it is dead code.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 15 Jul 2016 16:27:40 +0000 (18:27 +0200)]
compiler: never omit assertions if using a static analysis tool
Assertions help both Coverity and the clang static analyzer avoid
false positives, but on the other hand both are confused when
the condition is compiled as (void)(x != FOO). Always expand
assertion macros when using Coverity or clang, through a new
QEMU_STATIC_ANALYSIS preprocessor symbol.
This fixes a couple false positives in TCG.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>