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This helper function behaves similarly to co_sleep_ns(), but the
sleeping coroutine will be resumed when using qemu_aio_wait().
Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Tested-by: Liu Yuan <namei.unix@gmail.com>
Reviewed-by: Liu Yuan <namei.unix@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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The block layer generally keeps the size of an image cached in
bs->total_sectors so that it doesn't have to perform expensive
operations to get the size whenever it needs it.
This doesn't work however when using a backend that can change its size
without qemu being aware of it, i.e. passthrough of removable media like
CD-ROMs or floppy disks. For this reason, the caching is disabled when a
removable device is used.
It is obvious that checking whether the _guest_ device has removable
media isn't the right thing to do when we want to know whether the size
of the host backend can change. To make things worse, non-top-level
BlockDriverStates never have any device attached, which makes qemu
assume they are removable, so drv->bdrv_getlength() is always called on
the protocol layer. In the case of raw-posix, this causes unnecessary
lseek() system calls, which turned out to be rather expensive.
This patch completely changes the logic and disables bs->total_sectors
caching only for certain block driver types, for which a size change is
expected: host_cdrom and host_floppy on POSIX, host_device on win32; also
the raw format in case it sits on top of one of these protocols, but in
the common case the nested bdrv_getlength() call on the protocol driver
will use the cache again and avoid an expensive drv->bdrv_getlength()
call.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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# By Paolo Bonzini (10) and others
# Via Paolo Bonzini
* bonzini/iommu-for-anthony:
exec: remove qemu_safe_ram_ptr
icount: make it thread-safe
icount: document (future) locking rules for icount
icount: prepare the code for future races in calling qemu_clock_warp
icount: reorganize icount_warp_rt
icount: use cpu_get_icount() directly
timer: add timer_mod_anticipate and timer_mod_anticipate_ns
timer: extract timer_mod_ns_locked and timerlist_rearm
timer: make qemu_clock_enable sync between disable and timer's cb
qemu-thread: add QemuEvent
timer: protect timers_state's clock with seqlock
seqlock: introduce read-write seqlock
vga: Mark relevant portio lists regions as coalesced MMIO flushing
cirrus: Mark vga io region as coalesced MMIO flushing
portio: Allow to mark portio lists as coalesced MMIO flushing
compatfd: switch to QemuThread
memory: fix 128 arithmetic in info mtree
Message-id: 1382024935-28297-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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These let a user anticipate the deadline of a timer, atomically with
other sites that call the function. This helps avoiding complicated
lock hierarchies.
Reviewed-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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After disabling the QemuClock, we should make sure that no QemuTimers
are still in flight. To implement that with light overhead, we resort
to QemuEvent. The caller of disabling will wait on QemuEvent of each
timerlist.
Note, qemu_clock_enable(foo,false) can _not_ be called from timer's cb.
Also, the callers of qemu_clock_enable() should be protected by the BQL.
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This emulates Win32 manual-reset events using futexes or conditional
variables. Typical ways to use them are with multi-producer,
single-consumer data structures, to test for a complex condition whose
elements come from different threads:
for (;;) {
qemu_event_reset(ev);
... test complex condition ...
if (condition is true) {
break;
}
qemu_event_wait(ev);
}
Or more efficiently (but with some duplication):
... evaluate condition ...
while (!condition) {
qemu_event_reset(ev);
... evaluate condition ...
if (!condition) {
qemu_event_wait(ev);
... evaluate condition ...
}
}
QemuEvent provides a very fast userspace path in the common case when
no other thread is waiting, or the event is not changing state.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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QEMU_CLOCK_VIRTUAL may be read outside BQL. This will make its
foundation, i.e. cpu_clock_offset exposed to race condition.
Using private lock to protect it.
After this patch, reading QEMU_CLOCK_VIRTUAL is thread safe
unless use_icount is true, in which case the existing callers
still rely on the BQL.
Lock rule: private lock innermost, ie BQL->"this lock"
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Seqlock implementation for QEMU. Usage idiom
reader:
do {
start = seqlock_read_begin(&sl);
...
} while (seqlock_read_retry(&sl, start));
writer:
seqlock_write_lock(&sl);
...
seqlock_write_unlock(&sl);
initialization:
seqlock_init(QemuSeqLock *sl, QemuMutex *mutex)
mutex could be NULL if the caller will provide its own protection
for concurrent write sides (typically using the BQL).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This will enable us to remove all remaining explicit calls of
qemu_flush_coalesced_mmio_buffer in IO handlers.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This patch fixes spice display initialization to handle
multihead properly.
spice-core now keeps track of which QemuConsole has a spice
display channel attached to it and which has not. It also
manages display channel ids.
spice-display looks at all QemuConsoles and will pick up any
graphic console not yet bound to a spice channel (which in practice
are all non-qxl graphic devices).
Result is that
(a) you'll get a spice client window for each graphical device
now (first only without this patch), and
(b) mixing qxl and non-qxl vga cards works properly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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phys_mem_alloc and its assigned values qemu_anon_ram_alloc and
legacy_s390_alloc must have identical argument lists.
legacy_s390_alloc uses the size parameter to call mmap, so size_t is
good enough for all of them.
This patch fixes compiler errors on i686 Linux hosts:
CC alpha-softmmu/exec.o
exec.c:752:51: error:
initialization from incompatible pointer type [-Werror]
exec.c: In function 'qemu_ram_alloc_from_ptr':
exec.c:1139:32: error:
comparison of distinct pointer types lacks a cast [-Werror]
exec.c: In function 'qemu_ram_remap':
exec.c:1283:21: error:
comparison of distinct pointer types lacks a cast [-Werror]
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1380481005-32399-1-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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# By Mark Wu (2) and Tomoki Sekiyama (1)
# Via Michael Roth
* mdroth/qga-pull-2013-10-10:
qemu-ga: Extend 'guest-info' command to expose flag 'success-response'
qemu-ga: Add interface to traverse the qmp command list by QmpCommand
qemu-ga: execute fsfreeze-freeze in reverse order of mounts
Message-id: 1381435782-25524-1-git-send-email-mdroth@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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# By Richard Henderson
# Via Richard Henderson
* rth/tcg-pull:
exec: Add both big- and little-endian memory helpers
tcg: Add qemu_ld_st_i32/64
tcg: Add TCGMemOp
configure: Remove CONFIG_QEMU_LDST_OPTIMIZATION
tcg: Add tcg-be-ldst.h
tcg: Add tcg-be-null.h
exec: Delete is_tcg_gen_code and GETRA_EXT
tcg-aarch64: Update to helper_ret_*_mmu routines
tcg: Merge tcg_register_helper into tcg_context_init
tcg: Add tcg-runtime.c helpers to all_helpers
tcg: Put target helper data into an array.
tcg: Remove stray semi-colons from target-*/helper.h
tcg: Move helper registration into tcg_context_init
target-m68k: Rename helpers.h to helper.h
tcg: Use a GHashTable for tcg_find_helper
tcg: Delete tcg_helper_get_name declaration
tcg-hppa: Remove tcg backend
Message-id: 1381440525-6666-1-git-send-email-rth@twiddle.net
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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This reverts most of commit 3d1237fb2ab4edb926c717767bb5e31d6053a7c5.
The commit claims to sort the output of "-device help" "by
functionality rather than alphabetical". Issues:
* The output was unsorted before, not alphabetically sorted.
Misleading, but harmless enough.
* The commit doesn't just sort the output of "-device help" as it
claims, it adds categories to each line of "-device help", and it
prints devices once per category. In particular, devices without a
category aren't shown anymore. Maybe such devices should not exist,
but they do. Regression.
* Categories are also added to the output of "info qdm". Silent
change, not nice. Output remains unsorted, unlike "-device help".
I'm going to reimplement the feature we actually want, without the
warts. Reverting the flawed commit first should make it easier to
review. However, I can't revert it completely, since DeviceClass
member categories has been put to use. So leave that part in.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Message-id: 1381410021-1538-2-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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blockdev-add shouldn't automatically generate IDs, but will keep most of
the DriveInfo creation code.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
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BlockDriverStates shouldn't be affected by an unplugged guest device,
except if created with the legacy -drive command line option or the
drive_add HMP command.
Make the automatic deletion as well as cancelling of jobs conditional on
an enable_auto_del boolean that is only set in drive_init().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
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This field is used by blkverify to disable external snapshots creation.
It will also be used by block filters like quorum to disable external
snapshot creation.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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if a raw device like an iscsi target or host device is used
the current implementation makes a second call out to get
the block status of bs->file.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Add a function for generically dumping the ImageInfoSpecific information
in a human-readable format to block/qapi.c.
Use this function in bdrv_image_info_dump and qemu-io-cmds.c:info_f to
allow qemu-img info resp. qemu-io -c info to print that format specific
information.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Add a function for retrieving an ImageInfoSpecific object from a block
driver.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Switch the string to enum type BlockJobType in BlockJobDriver.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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We will use BlockJobType as the enum type name of block jobs in QAPI,
rename current BlockJobType to BlockJobDriver, which will eventually
become a set of operations, similar to block drivers.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Step three in the transition: helpers not tied to the target
"default" endianness. To be used when the guest uses a memory
operation with non-default endianness.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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QOM CPUState refactorings / X86CPU
* Fix for X86CPU model field of qemu32/qemu64 CPU models
* Bug fix for longjmp on FreeBSD
* Removal of unused function
* Confinement of clone syscall infrastructure to linux-user
# gpg: Signature made Wed 09 Oct 2013 03:40:51 AM PDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found
# By Andreas Färber (2) and others
# Via Andreas Färber
* afaerber/tags/qom-cpu-for-anthony:
cpu: Drop cpu_model_str from CPU_COMMON
cpu: Move cpu_copy() into linux-user
cputlb: Remove dead function tlb_update_dirty()
cpu-exec: Also reload CPUClass *cc after longjmp return in cpu_exec()
target-i386: Set model=6 on qemu64 & qemu32 CPU models
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# By Amit Shah
# Via Amit Shah
* amit/char-remove-watch-on-unplug:
char: remove watch callback on chardev detach from frontend
char: use common function to disable callbacks on chardev close
char: move backends' io watch tag to CharDriverState
Message-id: 20131004154802.GA25646@grmbl.mre
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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Now we have several qemu-ga commands not returning response on success.
It has been documented in qga/qapi-schema.json already. This patch exposes
the 'success-response' flag by extending 'guest-info' command. With this
change, the clients can handle the command response more flexibly.
Signed-off-by: Mark Wu <wudxw@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
*fixed up commit subject
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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In the original code, qmp_get_command_list is used to construct
a list of all commands' name. To get the information of all qga
commands, it traverses the name list and search the command info
with its name. So it can cause O(n^2) in the number of commands.
This patch adds an interface to traverse the qmp command list by
QmpCommand to replace qmp_get_command_list. It can decrease the
complexity from O(n^2) to O(n).
Signed-off-by: Mark Wu <wudxw@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
*fix up commit subject
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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All implementations now boil down to GETRA.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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A minimal update to use the new helpers with the return address argument.
Tested-by: Claudio Fontana <claudio.fontana@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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One call inside of a loop to tcg_register_helper instead of hundreds
of sequential calls.
Presumably more icache and branch prediction friendly; resulting binary
size mostly unchanged on x86_64, as we're trading 32-bit rip-relative
references in .text for full 64-bit pointers in .rodata.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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# By Asias He (1) and Peter Lieven (1)
# Via Paolo Bonzini
* bonzini/scsi-next:
scsi: Allocate SCSITargetReq r->buf dynamically [CVE-2013-4344]
block/iscsi: reenable iscsi_co_get_block_status
Message-id: 1381332391-8781-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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r->buf is hardcoded to 2056 which is (256 + 1) * 8, allowing 256 luns at
most. If more than 256 luns are specified by user, we have buffer
overflow in scsi_target_emulate_report_luns.
To fix, we allocate the buffer dynamically.
Signed-off-by: Asias He <asias@redhat.com>
Tested-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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# By Richard Henderson
# Via Richard Henderson
* rth/tcg-arm-pull:
tcg-arm: Move the tlb addend load earlier
tcg-arm: Remove restriction on qemu_ld output register
tcg-arm: Return register containing tlb addend
tcg-arm: Move load of tlb addend into tcg_out_tlb_read
tcg-arm: Use QEMU_BUILD_BUG_ON to verify constraints on tlb
tcg-arm: Use strd for tcg_out_arg_reg64
tcg-arm: Rearrange slow-path qemu_ld/st
tcg-arm: Use ldrd/strd for appropriate qemu_ld/st64
Message-id: 1380663109-14434-1-git-send-email-rth@twiddle.net
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
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# By Sebastian Ottlik
# Via Stefan Weil
* sweil/mingw:
util: call socket_set_fast_reuse instead of setting SO_REUSEADDR
slirp: call socket_set_fast_reuse instead of setting SO_REUSEADDR
net: call socket_set_fast_reuse instead of setting SO_REUSEADDR
gdbstub: call socket_set_fast_reuse instead of setting SO_REUSEADDR
util: add socket_set_fast_reuse function which will replace setting SO_REUSEADDR
Message-id: 1380735690-24009-1-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
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# By Stefan Weil
# Via Stefan Weil
* sweil/tci:
misc: Use new rotate functions
bitops: Add rotate functions (rol8, ror8, ...)
tci: Add implementation of rotl_i64, rotr_i64
Message-id: 1380137693-3729-1-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
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Since this is only read in cpu_copy() and linux-user has a global
cpu_model, drop the field from generic code.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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If a socket is closed it remains in TIME_WAIT state for some time. On operating
systems using BSD sockets the endpoint of the socket may not be reused while in
this state unless SO_REUSEADDR was set on the socket. On windows on the other
hand the default behaviour is to allow reuse (i.e. identical to SO_REUSEADDR on
other operating systems) and setting SO_REUSEADDR on a socket allows it to be
bound to a endpoint even if the endpoint is already used by another socket
independently of the other sockets state. This can even result in undefined
behaviour.
Many sockets used by QEMU should not block the use of their endpoint after being
closed while they are still in TIME_WAIT state. Currently QEMU sets SO_REUSEADDR
for such sockets, which can lead to problems on Windows. This patch introduces
the function socket_set_fast_reuse that should be used instead of setting
SO_REUSEADDR when fast socket reuse is desired and behaves correctly on all
operating systems.
As a failure of this function can only be caused by bad QEMU internal errors, an
assertion handles these situations. The return value is still passed on, to
minimize changes in client code and prevent unused variable warnings if NDEBUG
is defined.
Signed-off-by: Sebastian Ottlik <ottlik@fzi.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
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There's no Intel CPU with family=6,model=2, and Linux and Windows guests
disable SEP when seeing that combination due to Pentium Pro erratum #82.
In addition to just having SEP ignored by guests, Skype (and maybe other
applications) runs sysenter directly without passing through ntdll on
Windows, and crashes because Windows ignored the SEP CPUID bit.
So, having model > 2 is a better default on qemu64 and qemu32 for two
reasons: making SEP really available for guests, and avoiding crashing
applications that work on bare metal.
model=3 would fix the problem, but it causes CPU enumeration problems
for Windows guests[1]. So let's set model=6, that matches "Athlon
(PM core)" on AMD and "P2 with on-die L2 cache" on Intel and it allows
Windows to use all CPUs as well as fixing sysenter.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=508623
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Use the new helper_ret_*_mmu routines. Use a conditional call
to arrange for a tail-call from the store path, and to load the
return address for the helper for the load path.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups and enhancements,
and a virtio-net bugfix related to softmac programming.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Sun 29 Sep 2013 01:51:16 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found
# By Michael S. Tsirkin (8) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
smbios: Factor out smbios_maybe_add_str()
smbios: Make multiple -smbios type= accumulate sanely
smbios: Improve diagnostics for conflicting entries
smbios: Convert to QemuOpts
smbios: Normalize smbios_entry_add()'s error handling to exit(1)
virtio-net: fix up HMP NIC info string on reset
pci: remove explicit check to 64K ioport size
piix4: disable io on reset
piix: use 64 bit window programmed by guest
q35: use 64 bit window programmed by guest
pci: add helper to retrieve the 64-bit range
range: add min/max operations on ranges
range: add Range to typedefs
q35: make pci window address/size match guest cfg
Message-id: 1380437951-21788-1-git-send-email-mst@redhat.com
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# By Max Reitz (10) and others
# Via Kevin Wolf
* kwolf/for-anthony: (30 commits)
qcow2: Remove useless count_contiguous_clusters() parameter
qcow2: COMPRESSED on count_contiguous_clusters
qcow2: count_contiguous_clusters and compression
qcow2: Free only newly allocated clusters on error
qcow2: Always use error path in l2_allocate
qcow2: Don't put invalid L2 table into cache
qemu-iotests: Preallocated zero clusters in 061
qcow2: Correct bitmap size in zero expansion
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
qemu-iotests: Add basic ability to use binary sample images
qemu-iotests: fix qmp.py search path
block: use DIV_ROUND_UP in bdrv_co_do_readv
qcow2: Assert against currently impossible overflow
block: qed - use QEMU_PACKED for on-disk structures
block: qcow2 - used QEMU_PACKED for on-disk structures
block: vpc - use QEMU_PACKED for on-disk structures
block: vdi - use QEMU_PACKED for on-disk structures
rbd: avoid qemu_rbd_snap_list() memory leaks
qdict: Extract qdict_extract_subqdict
block: Fix compiler warning (-Werror=uninitialized)
...
Message-id: 1380296370-14523-1-git-send-email-kwolf@redhat.com
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# By Anthony PERARD (2) and Liu, Jinsong (2)
# Via Stefano Stabellini
* sstabellini/xen-2013-09-25:
xen: Enable cpu-hotplug on xenfv machine.
xen: Fix vcpu initialization.
qemu: Add qemu xen logic for Xen HVM S3 resume
qemu: Adjust qemu wakeup
Message-id: alpine.DEB.2.02.1309251749180.5498@kaball.uk.xensource.com
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# By Richard Henderson (19) and Paolo Bonzini (2)
# Via Richard Henderson
* rth/tcg-ppc-pull: (21 commits)
tcg-ppc64: Implement CONFIG_QEMU_LDST_OPTIMIZATION
tcg-ppc64: Add _noaddr functions for emitting forward branches
tcg-ppc64: Streamline tcg_out_tlb_read
tcg-ppc64: Implement tcg_register_jit
tcg-ppc64: Handle long offsets better
tcg-ppc64: Tidy register allocation order
tcg-ppc64: Look through a constant function descriptor
tcg-ppc64: Fold constant call address into descriptor load
tcg-ppc64: Don't load the static chain from TCG
tcg-ppc64: Avoid code for nop move
tcg-ppc64: Use tcg_out64
tcg-ppc64: Use TCG_REG_Rn constants
tcg-ppc64: More use of TAI and SAI helper macros
tcg-ppc64: Reformat tcg-target.c
tcg-ppc: Fix and cleanup tcg_out_tlb_check
tcg-ppc: Use conditional branch and link to slow path
tcg-ppc: Cleanup tcg_out_qemu_ld/st_slow_path
tcg-ppc: Avoid code for nop move
tcg-ppc: use new return-argument ld/st helpers
tcg-ppc: fix qemu_ld/qemu_st for AIX ABI
...
Message-id: 1380126458-3247-1-git-send-email-rth@twiddle.net
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# By Isaku Yamahata (4) and others
# Via Juan Quintela
* quintela/migration.next:
migration: ram_handle_compressed
arch_init: make is_zero_page accept size
migration: Fix debug print type
migration: add version supporting macros for struct pointer
rdma: constify ram_chunk_{index, start, end}
rdma: clean up of qemu_rdma_cleanup()
arch_init: right return for ram_save_iterate
savevm: fix wrong initialization by ram_control_load_hook
savevm: add comments for qemu_file_get_error()
Message-id: 1380024203-25897-1-git-send-email-quintela@redhat.com
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This is a bunch of fixes/changes for the s390 architecture. It also
contains the fixes from the previous pull request, which did not make
it yet.
Overall it contains
- a fix for kexec without kdump (which uses diag308 subcode 0 instead of 1)
- several sclp related fixes
- some initial sclp migration code
- the sclp line mode console
- A fix for a boot problem with the virtio ccw ipl bios
- zeroed out padding bytes for the notes section of dump-guest-memory
- some cleanups
# gpg: Signature made Tue 24 Sep 2013 02:18:44 AM CDT using RSA key ID B5A61C7C
# gpg: Can't check signature: public key not found
# By Christian Borntraeger (6) and others
# Via Christian Borntraeger
* borntraeger/tags/s390-next-20130924:
s390/sclplmconsole: Add support for SCLP line-mode console
s390/ebcdic: Move conversion tables to header file
s390/eventfacility: allow childs to handle more than 1 event type
s390/eventfacility: remove unused event_type variable
s390/eventfacility: Fix receive/send masks
s390/eventfacility: fix multiple Read Event Data sources
s390/sclp: add reset() functions
s390/sclpquiesce: Add code to support live migration
s390/sclpconsole: Add code to support live migration for sclpconsole
s390/sclpconsole: modify definition of input buffer
s390/kexec: Implement diag308 subcode 0
s390/ioinst: Moved the CC setting to the IO instruction handlers
s390/cpu: Make setcc() function available to other files
s390/ipl: Update the s390-ccw.img rom
s390/ipl: Fix waiting for virtio processing
s390/dump: zero out padding bytes in notes sections
s390/kvm: Add check for priviledged SCLP handler
Message-id: 1380007671-18976-1-git-send-email-borntraeger@de.ibm.com
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Currently, -smbios type=T,NAME=VAL,... adds one field (T,NAME) with
value VAL to fw_cfg for each unique NAME. If NAME occurs multiple
times, the last one's VAL is used (before the QemuOpts conversion, the
first one was used).
Multiple -smbios can add multiple fields with the same (T, NAME).
SeaBIOS reads all of them from fw_cfg, but uses only the first field
(T, NAME). The others are ignored.
"First one wins, subsequent ones get ignored silently" isn't nice. We
commonly let the last option win. Useful, because it lets you
-readconfig first, then selectively override with command line
options.
Clean up -smbios to work the common way. Accumulate the settings,
with later ones overwriting earlier ones. Put the result into fw_cfg
(no more useless duplicates).
Bonus cleanup: qemu_uuid_parse() no longer sets SMBIOS system uuid by
side effect.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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So that it can be set in config file for -readconfig.
This tightens parsing of -smbios, and makes it more consistent with
other options: unknown parameters are rejected, numbers with trailing
junk are rejected, when a parameter is given multiple times, last
rather than first wins, ...
MST: drop one chunk to fix build errors
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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It exits on all error conditions but one, where it returns -1.
Normalize, and return void.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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These functions were copies from include/linux/bitopts.h.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
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Currently Xen hvm s3 has a bug coming from the difference between
qemu-traditioanl and qemu-xen. For qemu-traditional, the way to
resume from hvm s3 is via 'xl trigger' command. However, for
qemu-xen, the way to resume from hvm s3 inherited from standard
qemu, i.e. via QMP, and it doesn't work under Xen.
The root cause is, for qemu-xen, 'xl trigger' command didn't reset
devices, while QMP didn't unpause hvm domain though they did qemu
system reset.
We have two qemu patches and one xl patch to fix Xen hvm s3 bug.
This patch is the qemu patch 1. It adjusts qemu wakeup so that
Xen s3 resume logic (which will be implemented at qemu patch 2)
will be notified after qemu system reset.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
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