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Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
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The call in buffered_close is enough, because buffered_close is called
already by migrate_fd_cleanup.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
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commit 5b4e1eb769eee892b44d3f6b2369b05196442f59
missed this use.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Reviewed-by: Eric Blake <eblake@redhat.com>
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# By Stefan Weil (2) and others
# Via Stefan Hajnoczi
* stefanha/trivial-patches:
hw/tpci200: Fix compiler warning (redefined symbol with MinGW)
configure: silence pkg-config's check for curses
acpitable: open the data file in binary mode
hw: Spelling fix in log message
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STATUS_TIMEOUT is defined in winnt.h:
CC hw/tpci200.o
hw/tpci200.c:34:0:
warning: "STATUS_TIMEOUT" redefined [enabled by default]
/usr/lib/gcc/x86_64-w64-mingw32/4.6/../../../../x86_64-w64-mingw32/include/winnt.h:1036:0:
note: this is the location of the previous definition
Use STATUS_TIME instead of STATUS_TIMEOUT as suggested by Alberto Garcia.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Vadim Evard <v.e.evard@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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-acpitable {file|data}=file reads the content of file, but it is
in binary form, so the file should be opened usin O_BINARY flag.
On *nix it is a no-op, but on windows and other weird platform
it is really needed.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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defineition -> definition
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas F=E4rber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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# By Gerd Hoffmann
# Via Gerd Hoffmann
* kraxel/seabios-1.7.2:
seabios: update to 1.7.2 release
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Not that many changes as we have a pretty recent git snapshot in master
already:
Hannes Reinecke (1):
megasas: Invert PCI device selection
Kevin O'Connor (2):
Minor: Separate UUID display from F12 boot prompt.
boot: Support "halt" in the boot order to prevent default boot attempts.
Laszlo Ersek (1):
display_uuid(): fix incomplete check after the loop
Paolo Bonzini (1):
vgabios: implement AX=1120H..1124H functions
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Such a function never existed.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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Such a function never existed.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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# By Kevin Wolf (4) and others
# Via Stefan Hajnoczi
* stefanha/block:
dataplane: support viostor virtio-pci status bit setting
dataplane: avoid reentrancy during virtio_blk_data_plane_stop()
win32-aio: use iov utility functions instead of open-coding them
win32-aio: Fix memory leak
win32-aio: Fix vectored reads
aio: Fix return value of aio_poll()
ide: Remove wrong assertion
block: fix null-pointer bug on error case in block commit
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The viostor virtio-blk driver for Windows does not use the
VIRTIO_CONFIG_S_DRIVER bit. It only sets the VIRTIO_CONFIG_S_DRIVER_OK
bit.
The viostor driver refreshes the virtio-pci status byte sometimes while
the guest is running. We misinterpret 0x4 (VIRTIO_CONFIG_S_DRIVER_OK)
as an indication that virtio-blk-data-plane should be stopped since 0x2
(VIRTIO_CONFIG_S_DRIVER) is missing. The result is that the device
becomes unresponsive.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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When dataplane is stopping, the s->vdev->binding->set_host_notifier(...,
false) call can invoke the virtqueue handler if an ioeventfd
notification is pending. This causes hw/virtio-blk.c to invoke
virtio_blk_data_plane_start() before virtio_blk_data_plane_stop()
returns!
The result is that we try to restart dataplane while trying to stop it
and the following assertion is raised:
msix_set_mask_notifier: Assertion `!dev->msix_mask_notifier' failed.
Although the code was intended to prevent this scenario, the s->started
boolean isn't enough. Add s->stopping so that we can postpone clearing
s->started until we've completely stopped dataplane.
This way, virtqueue handler calls during virtio_blk_data_plane_stop()
are ignored. When dataplane is legitimately started again later we
already self-kick ourselves to resume processing.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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We have iov_from_buf() and iov_to_buf(), use them instead of
open-coding these in block/win32-aio.c
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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The buffer is allocated for both reads and writes, and obviously it
should be freed even if an error occurs.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Copying data in the right direction really helps a lot!
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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aio_poll() must return true if any work is still pending, even if it
didn't make progress, so that bdrv_drain_all() doesn't stop waiting too
early. The possibility of stopping early occasionally lead to a failed
assertion in bdrv_drain_all(), when some in-flight request was missed
and the function didn't really drain all requests.
In order to make that change, the return value as specified in the
function comment must change for blocking = false; fortunately, the
return value of blocking = false callers is only used in test cases, so
this change shouldn't cause any trouble.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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The Bus Master IDE Active bit (BM_STATUS_DMAING) is not only set when
the request is still in flight, but also when it has completed and the
size of the physical memory regions in the PRDT was larger than the
transfer size.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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This is a bug that was caught by a coverity run by Markus. In
the error case when we errored out to exit_restore_open early in the
function, 'overlay_bs' was still NULL at that point, although it is
used to look up flags and perform a bdrv_reopen().
Move the overlay_bs lookup to where it is needed, and check for NULL
before restoring the flags. Also get rid of the unneeded parameter
initialization.
Reported-By: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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s390x-linux-user now also uses GETPC. Instead of adding it to the list of
targets which use GETPC, the macro is now defined unconditionally.
This avoids future build regressions like this one:
CC s390x-linux-user/target-s390x/int_helper.o
cc1: warnings being treated as errors
qemu/target-s390x/int_helper.c: In function ‘helper_divs32’:
qemu/target-s390x/int_helper.c:47: error: implicit declaration of function ‘GETPC’
qemu/target-s390x/int_helper.c:47: error: nested extern declaration of ‘GETPC’
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Fixes the build on OpenBSD among others.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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84f2d0ea added an argument to function usb_host_info.
The stub function must match the declaration in usb.h.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Commit c64ca8140e9c21cd0d44c10fbe1247cb4ade8e6e (cpu: Move
queued_work_{first,last} to CPUState) moved the qemu_work_item fields
away. Clean up the now unused prototype.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Silence a (legitimate) complaint about missing parentheses:
tcg/arm/tcg-target.c: In function ‘tcg_out_qemu_ld’:
tcg/arm/tcg-target.c:1148:5: error: suggest parentheses around
comparison in operand of ‘&’ [-Werror=parentheses]
tcg/arm/tcg-target.c: In function ‘tcg_out_qemu_st’:
tcg/arm/tcg-target.c:1357:5: error: suggest parentheses around
comparison in operand of ‘&’ [-Werror=parentheses]
which meant that we would mistakenly always assert if running
a QEMU built with debug enabled on ARM.
Signed-off-by: Peter Maydell <peter.maydelL@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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g_strdup_printf already handles OOM errors, so some error handling in
QEMU code can be removed.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Code mixes uint32_t, int and size_t. Very unlikely to go wrong in
practice, but clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Many callers pass size_t, which gets silently truncated to uint32_t.
Harmless, because all practical sizes are well below 4GiB. Clean it
up anyway. Size overflow now fails assertions.
Bonus: saves a whole bunch of silly casts.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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No caller is checking the value, so all errors get ignored, usually
silently. assert() instead.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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This adds two optimizations using the non-zero bit mask. In some cases
involving shifts or ANDs the value can become zero, and can thus be
optimized to a move of zero. Second, useless zero-extension or an
AND with constant can be detected that would only zero bits that are
already zero.
The main advantage of this optimization is that it turns zero-extensions
into moves, thus enabling much better copy propagation (around 1% code
reduction). Here is for example a "test $0xff0000,%ecx + je" before
optimization:
mov_i64 tmp0,rcx
movi_i64 tmp1,$0xff0000
discard cc_src
and_i64 cc_dst,tmp0,tmp1
movi_i32 cc_op,$0x1c
ext32u_i64 tmp0,cc_dst
movi_i64 tmp12,$0x0
brcond_i64 tmp0,tmp12,eq,$0x0
and after (without patch on the left, with on the right):
movi_i64 tmp1,$0xff0000 movi_i64 tmp1,$0xff0000
discard cc_src discard cc_src
and_i64 cc_dst,rcx,tmp1 and_i64 cc_dst,rcx,tmp1
movi_i32 cc_op,$0x1c movi_i32 cc_op,$0x1c
ext32u_i64 tmp0,cc_dst
movi_i64 tmp12,$0x0 movi_i64 tmp12,$0x0
brcond_i64 tmp0,tmp12,eq,$0x0 brcond_i64 cc_dst,tmp12,eq,$0x0
Other similar cases: "test %eax, %eax + jne" where eax is already 32-bit
(after optimization, without patch on the left, with on the right):
discard cc_src discard cc_src
mov_i64 cc_dst,rax mov_i64 cc_dst,rax
movi_i32 cc_op,$0x1c movi_i32 cc_op,$0x1c
ext32u_i64 tmp0,cc_dst
movi_i64 tmp12,$0x0 movi_i64 tmp12,$0x0
brcond_i64 tmp0,tmp12,ne,$0x0 brcond_i64 rax,tmp12,ne,$0x0
"test $0x1, %dl + je":
movi_i64 tmp1,$0x1 movi_i64 tmp1,$0x1
discard cc_src discard cc_src
and_i64 cc_dst,rdx,tmp1 and_i64 cc_dst,rdx,tmp1
movi_i32 cc_op,$0x1a movi_i32 cc_op,$0x1a
ext8u_i64 tmp0,cc_dst
movi_i64 tmp12,$0x0 movi_i64 tmp12,$0x0
brcond_i64 tmp0,tmp12,eq,$0x0 brcond_i64 cc_dst,tmp12,eq,$0x0
In some cases TCG even outsmarts GCC. :) Here the input code has
"and $0x2,%eax + movslq %eax,%rbx + test %rbx, %rbx" and the optimizer,
thanks to copy propagation, does the following:
movi_i64 tmp12,$0x2 movi_i64 tmp12,$0x2
and_i64 rax,rax,tmp12 and_i64 rax,rax,tmp12
mov_i64 cc_dst,rax mov_i64 cc_dst,rax
ext32s_i64 tmp0,rax -> nop
mov_i64 rbx,tmp0 -> mov_i64 rbx,cc_dst
and_i64 cc_dst,rbx,rbx -> nop
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add a "mask" field to the tcg_temp_info struct. A bit that is zero
in "mask" will always be zero in the corresponding temporary.
Zero bits in the mask can be produced from moves of immediates,
zero-extensions, ANDs with constants, shifts; they can then be
be propagated by logical operations, shifts, sign-extensions,
negations, deposit operations, and conditional moves. Other
operations will just reset the mask to all-ones, i.e. unknown.
[rth: s/target_ulong/tcg_target_ulong/]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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The next patch will add to the TCG optimizer a field that should be
non-zero in the default case. Thus, replace the memset of the
temps array with a loop. Only the state field has to be up-to-date,
because others are not used except if the state is TCG_TEMP_COPY
or TCG_TEMP_CONST.
[rth: Extracted the loop to a function.]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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* 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf:
PPC: KVM: Add support for EPR with KVM
openpic: export e500 epr enable into a ppc.c function
Update Linux kernel headers
PPC: e500: Change in-memory order of load blobs
PPC: Provide zero SVR for -cpu e500mc and e5500
PPC: E500: Calculate loading blob offsets properly
openpic: set mixed mode as supported
openpic: unify gcr mode mask updates
openpic: move gcr write into a function
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This patch links KVM EPR support to the existing TCG support we have now.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Enabling and disabling the EPR capability (mpic_proxy) is a system
wide operation. As such, it belongs into the ppc.c file, since that's
where PPC specific machine wide logic happens.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Based on kvm.git a843fac (next) plus dfdebc24 (master).
Signed-off-by: Alexander Graf <agraf@suse.de>
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Today, we load
<kernel> <initrd> <dtb>
into memory in that order. However, Linux has a bug where it can only
handle the dtb if it's within the first 64MB of where <kernel> starts.
So instead, let's change the order to
<kernel> <dtb> <initrd>
making Linux happy.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Even though our -cpu types for e500mc and e5500 are no real CPUs that
actually have version registers, a guest might still want to access
said version register and that has to succeed for a guest to be happy.
So let's expose a zero SVR value on E500_SVR SPR reads.
Signed-off-by: Alexander Graf <agraf@suse.de>
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We have 3 blobs we need to load when booting the system:
- kernel
- initrd
- dtb
We place them in physical memory in that order. At least we should.
This patch fixes the location calculation up to take any module into
account, fixing the dtb offset along the way.
Reported-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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