| Commit message (Collapse) | Author | Age | Files | Lines |
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It's poor symbol hygiene to provide a global symbols that collide with a
common library like libuuid. If QEMU links against a shared library
that depends on uuid_generate() it can end up calling our stub version
of the function.
This exact scenario happened with GlusterFS libgfapi.so, which depends
on libglusterfs.so's uuid_generate().
Scope the uuid stubs for vdi.c only and avoid affecting other shared
objects.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
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For hdev, floppy, and cdrom, the reopen() handlers are the same as
for the file reopen handler. For floppy and cdrom types, however,
we keep O_NONBLOCK, as in the _open function.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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* stefanha/net:
tap: reset vnet header size on open
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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For tap, we currently assume the vnet header size is 10
(the default value) but that might not be the case
if tap is persistent and has been used by qemu previously.
To fix, set host header size in tap device on open.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Catalin Patulea <catalinp@google.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The vm clock may be stopped, and then we won't get open events anymore.
Seen with QMP sessions.
Reported-by: Dietmar Maurer <dietmar@proxmox.com>
Tested-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Currently Makefile test if pixman have configure log, but the script directly
return error if that file do not exist. This patch fix it.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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The local string tmp_filename is passed to function get_tmp_filename
which expects a string with minimum size MAX_PATH for w32 hosts.
MAX_PATH is 260 and PATH_MAX is 259, so tmp_filename was too short.
Commit eba25057b9a5e19d10ace2bc7716667a31297169 introduced this
regression.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Fixes the pointer truncation that was occurring for branches.
Cc: Stefan Weil <sw@weilnetz.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Tested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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In dead_temp, local temps should always be marked as back to memory,
even if they have not been allocated (i.e. they are discared before
cross a basic block).
It fixes the following assertion in target-xtensa:
qemu-system-xtensa: tcg/tcg.c:1665: temp_save: Assertion `s->temps[temp].val_type == 2 || s->temps[temp].fixed_reg' failed.
Aborted
Reported-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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I check MIPS microMIPS manual [1], and found the major opcode might
be wrong. I add a comment to explicitly indicate what manual I am refering
to, and according that manual I remove microMIPS32 major opcodes 0x1f.
As for others, like 0x16, 0x17, 0x36 and 0x37, they are for higher-order
MIPS ISA level or new revision of this microMIPS architecture. Quote
from Johnson, they are belong MIPS64 [2].
[1] http://www.mips.com/products/architectures/micromips/#specifications
MIPS Architecture for Programmers Volume II-B:
The microMIPS32 Instruction Set (Revision 3.05)
MD00582-2B-microMIPS-AFP-03.05.pdf
[2] http://www.mips.com/products/architectures/mips64/
MIPS Architecture For Programmers
Volume II-A: The MIPS64 Instruction Set
MD00087-2B-MIPS64BIS-AFP-03.51.pdf
Signed-off-by: Chen Wei-Ren <chenwj@iis.sinica.edu.tw>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Current QEMU MIPS POOL32AXF encoding comes from microMIPS32
and microMIPS32 DSP. Add comment here to help reading.
Signed-off-by: Chen Wei-Ren <chenwj@iis.sinica.edu.tw>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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On an ARM host, the registers definitions from cpu.h clash
with /usr/include/sys/ucontext.h. As there are unused, just remove
them.
Cc: Jia Liu <proljc@gmail.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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The bswap16 TCG opcode assumes that the high bytes of the temp equal
to 0 before calling it. The ARM backend implementation takes this
assumption to slightly optimize the generated code.
The same implementation is called for implementing the cross-endian
qemu_st16 opcode, where this assumption is not true anymore. One way to
fix that would be to zero the high bytes before calling it. Given the
store instruction just ignore them, it is possible to provide a slightly
more optimized version. With ARMv6+ the rev16 instruction does the work
correctly. For lower ARM versions the patch provides a version which
behaves correctly with non-zero high bytes, but fill them with junk.
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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The TCG arm backend considers likely that the offset to the TLB
entries does not exceed 12 bits for mem_index = 0. In practice this is
not true for at least the MIPS target.
The current patch fixes that by loading the bits 23-12 with a separate
instruction, and using loads with address writeback, independently of
the value of mem_idx. In total this allow a 24-bit offset, which is a
lot more than needed.
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Having a qemu command line argument like "-vnc 127.0.0.1:0,to=99" is broken.
This have been break with commit 879e45c72da1569e07fbbc6a1aa2a708ea796044.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
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Signed-off-by: malc <av1474@comtv.ru>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: malc <av1474@comtv.ru>
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Signed-off-by: malc <av1474@comtv.ru>
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Thanks to Alexander Graf for heads up.
Signed-off-by: malc <av1474@comtv.ru>
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* kiszka/queues/slirp:
slirp: Add domain-search option to slirp's DHCP server
slirp: Don't crash on packets from 0.0.0.0/8.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch will allow the user to include the domain-search option in
replies from the built-in DHCP server. The domain suffixes can be
specified by adding dnssearch= entries to the "-net user" parameter.
[Jan: tiny style adjustments]
Signed-off-by: Klaus Stengel <Klaus.Stengel@asamnet.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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LWIP can generate packets with a source of 0.0.0.0, which triggers an
assertion failure in arp_table_add(). Instead of crashing, simply return
to avoid adding an invalid ARP table entry.
Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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* bonzini/build-urgent:
Makefile: Add missing dependency (fix parallel builds)
tests: link in stubs
libcacard: link in stubs
libcacard: make unnesting rules available to Makefile.objs
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The executables in i386-softmmu, i386-linux-user, ...
depend on the recently added libqemustub.a.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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* kwolf/for-anthony: (26 commits)
qemu-io: Use bdrv_drain_all instead of qemu_aio_flush
megasas: Use bdrv_drain_all instead of qemu_aio_flush
vmdk: Fix data corruption bug in WRITE and READ handling
fdc: remove last usage of FD_STATE_SEEK
fdc: fix typo in zero constant
fdc: remove double affectation of FD_MSR_CMDBUSY flag
fdc-tests: add tests for VERIFY command
fdc: implement VERIFY command
fdc-test: Check READ ID
fdc: fix false FD_SR0_SEEK
fdc: fix FD_SR0_SEEK for initial seek on DMA transfers
fdc: fix FD_SR0_SEEK for non-DMA transfers and multi sectors transfers
fdc: use status0 field instead of a local variable
fdc-test: add tests for non-DMA READ command
fdc-test: insert media before fuzzing registers
fdc-test: split test_media_change() test, so insert part can be reused
fdc: Remove status0 parameter from fdctrl_set_fifo()
aio: rename AIOPool to AIOCBInfo
aio: use g_slice_alloc() for AIOCB pooling
aio: switch aiocb_size type int -> size_t
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is harmless as of today because I/O throttling is not used in
qemu-io, however as soon as .bdrv_drain handlers will be introduced,
qemu-io must be sure to call bdrv_drain_all().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Calling qemu_aio_flush() directly can hang when combined with I/O
throttling.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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Fixed a MAJOR BUG in VMDK files on file boundaries on reads
and ALSO ON WRITES WHICH MIGHT CORRUPT THE IMAGE AND DATA!!!!!!
Triggered for example with the following VMDK file (partly listed):
RW 4193792 FLAT "XP-W1-f001.vmdk" 0
RW 2097664 FLAT "XP-W1-f002.vmdk" 0
RW 4193792 FLAT "XP-W1-f003.vmdk" 0
RW 512 FLAT "XP-W1-f004.vmdk" 0
RW 4193792 FLAT "XP-W1-f005.vmdk" 0
RW 2097664 FLAT "XP-W1-f006.vmdk" 0
RW 4193792 FLAT "XP-W1-f007.vmdk" 0
RW 512 FLAT "XP-W1-f008.vmdk" 0
Patch includes:
1.) Patch fixes wrong calculation on extent boundaries. Especially it
fixes the relativeness of the sector number to the current extent.
Verfied correctness with:
1.) Converted either with Virtualbox to VDI and then with qemu-img and
then with qemu-img only:
VBoxManage clonehd --format vdi /VM/XP-W/new/XP-W1.vmdk ~/.VirtualBox/Harddisks/XP-W1-new-test.vdi
./qemu-img convert -O raw ~/.VirtualBox/Harddisks/XP-W1-new-test.vdi /root/QEMU/VM-XP-W1/XP-W1-via-VBOX.img
md5sum /root/QEMU/VM-XP-W/XP-W1-direct.img
md5sum /root/QEMU/VM-XP-W/XP-W1-via-VBOX.img
=> same MD5 hash
2.) Verified debug log files
3.) Run Windows XP successfully
4.) chkdsk run successfully without any errors
Signed-off-by: Gerhard Wiesinger <lists@wiesinger.com>
Acked-by: Fam Zheng <famcool@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Replace it by directly setting FD_SR0_SEEK if required
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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FD_MSR_CMDBUSY flag is already set in fdctrl_write_data(), just
before calling the command handler (fdctrl_start_transfer() here).
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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VERIFY command is like a READ command, except that read data is not
transfered by DMA.
As DMA engine is not used, so we have to start data transfer ourselves.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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ST0 shouldn't include 0x20 (FD_SR0_SEEK) after READ ID.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Tested-by: Hervé Poussineau <hpoussin@reactos.org>
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Do not always set FD_SR0_SEEK, as callers already set it if needed.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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fdctrl_start_transfer() used to set FD_SR0_SEEK no matter if
there actually was a seek or not. This is obviously wrong.
fdctrl_start_transfer() has this information because it performs
the initial seek itself.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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On non-DMA transfers, fdctrl_stop_transfer() used to set FD_SR0_SEEK
no matter if there actually was a seek or not. This is obviously wrong.
fdctrl_seek_to_next_sect() has this information because it performs
the seek itself.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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A media will be required for future fdc tests.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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It decided whether an interrupt is triggered. Only one caller made use
of this functionality, so move the code there.
In this one caller, the interrupt must actually be triggered
unconditionally, like it was before commit 2fee0088. For example, a
successful read without an implied seek can result in st0 = 0, but still
triggers the interrupt.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Tested-by: Hervé Poussineau <hpoussin@reactos.org>
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Now that AIOPool no longer keeps a freelist, it isn't really a "pool"
anymore. Rename it to AIOCBInfo and make it const since it no longer
needs to be modified.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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AIO control blocks are frequently acquired and released because each aio
request involves at least one AIOCB. Therefore, we pool them to avoid
heap allocation overhead.
The problem with the freelist approach in AIOPool is thread-safety. If
we want BlockDriverStates to associate with AioContexts that execute in
multiple threads, then a global freelist becomes a problem.
This patch drops the freelist and instead uses g_slice_alloc() which is
tuned for per-thread fixed-size object pools. qemu_aio_get() and
qemu_aio_release() are now thread-safe.
Note that the change from g_malloc0() to g_slice_alloc() should be safe
since the freelist reuse case doesn't zero the AIOCB either.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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