- 26 9月, 2012 21 次提交
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由 Igor Mammedov 提交于
Acked-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Igor Mammedov 提交于
In addition, there is no need to allocate an extra irq just for rising SCI in irq handler. Just rise SCI right from notifier handler instead. Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Igor Mammedov 提交于
Notifier will be used for signaling powerdown request to guest in a more general way and intended to replace very specific qemu_irq_rise(qemu_system_powerdown) and will allow to remove global variable qemu_system_powerdown. Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
* origin/master: tcg/i386: fix build with -march < i686 tcg: Streamline movcond_i64 using movcond_i32 tcg: Streamline movcond_i64 using 32-bit arithmetic tcg: Sanity check goto_tb input tcg: Sanity check deposit inputs tcg: Add tcg_debug_assert tcg: Implement concat*_i64 with deposit_i64 tcg: Emit XORI as NOT for appropriate constants tcg: Optimize initial inputs for ori_i64 tcg: Emit ANDI as EXTU for appropriate constants tcg: Adjust descriptions of *cond opcodes tcg/mips: fix MIPS32(R2) detection
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由 Aurelien Jarno 提交于
The movcond_i32 op has to be protected with TCG_TARGET_HAS_movcond_i32 to fix the build with -march < i686. Thanks to Richard Henderson for the hint. Reported-by: NAlex Barcelo <abarcelo@ac.upc.edu> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
When movcond_i32 is available we can further reduce the generated op count from 12 to 6, and the generated code size on i686 from 88 to 74 bytes. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Avoiding 64-bit arithmetic (outside of the compare) reduces the generated op count from 15 to 12, and the generated code size on i686 from 105 to 88 bytes. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Checking that we don't try for idx != [01] is trivial. Checking that we don't issue more than one of any index requires a tad more data and some ifdefs protecting that new variable. Signed-off-by: NRichard Henderson <rth@twiddle.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Given these are constants, checking once here means everything after can assume they're correct. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Like the C assert macro, except only enabled for CONFIG_DEBUG_TCG, and without having to set _NDEBUG and disable all other asserts at the same time. The use of __builtin_unreachable (when available) gives the compiler the same information, which may (or may not) help it optimize better. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
For tcg_gen_concat_i32_i64 we only use deposit if the host supports it. For tcg_gen_concat32_i64 even if the host does not, as we get identical code before and after. Note that this relies on the ANDI -> EXTU patch for the identity claim. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Note that xori_i64 failed to perform even the minimal optimizations promised by the README. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Copy the same optimizations from ori_i32. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
Note that andi_i64 failed to perform even the minimal optimizations promised by the README. Signed-off-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Richard Henderson 提交于
The README file documented the operand ordering of the tcg_gen_* functions. Since we're documenting opcodes here, use the true operand ordering. Signed-off-by: NRichard Henderson <rth@twiddle.net> Cc: malc <av1474@comtv.ru> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Aurelien Jarno 提交于
Fix the MIPS32(R2) cpu detection so that it also works with -march=octeon. Thanks to Andrew Pinski for the hint. Cc: Andrew Pinski <apinski@cavium.com> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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由 Anthony Liguori 提交于
* kwolf/for-anthony: block: remove keep_read_only flag from BlockDriverState struct block: convert bdrv_commit() to use bdrv_reopen() block: vpc image file reopen block: vdi image file reopen block: vmdk image file reopen block: qcow image file reopen block: qcow2 image file reopen block: qed image file reopen block: raw image file reopen block: raw-posix image file reopen block: purge s->aligned_buf and s->aligned_buf_size from raw-posix.c block: use BDRV_O_NOCACHE instead of s->aligned_buf in raw-posix.c block: do not parse BDRV_O_CACHE_WB in block drivers block: move open flag parsing in raw block drivers to helper functions block: move aio initialization into a helper function block: Framework for reopening files safely block: make bdrv_set_enable_write_cache() modify open_flags block: correctly set the keep_read_only flag blockdev: preserve readonly and snapshot states across media changes
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由 Anthony Liguori 提交于
* stefanha/trivial-patches: w32: Always use standard instead of native format strings net/socket: Fix compiler warning (regression for MinGW) linux-user: Remove redundant null check and replace free by g_free qemu-timer: simplify qemu_run_timers TextConsole: saturate escape parameter in TTY_STATE_CSI curses: don't initialize curses when qemu is daemonized dtrace backend: add function to reserved words pflash_cfi01: Fix warning caused by unreachable code ioh3420: Remove unreachable code lm4549: Fix buffer overflow cadence_uart: Fix buffer overflow qemu-sockets: Fix potential memory leak qemu-ga: Remove unreachable code after g_error target-i386: Allow tsc-frequency to be larger then 2.147G
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由 Anthony Liguori 提交于
* afaerber/qom-cpu: target-alpha: Initialize env->cpu_model_str target-i386: Drop unused setscalar() macro target-i386: Kill cpudef config section support target-i386: x86_cpudef_setup() coding style change Eliminate cpus-x86_64.conf file target-i386: Move CPU models from cpus-x86_64.conf to C target-i386: Add missing CPUID_* constants Drop cpu_list_id macro target-i386: Fold -cpu ?cpuid, ?model output into -cpu help, drop ?dump MAINTAINERS: Add entry for QOM CPU
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由 Anthony Liguori 提交于
* bonzini/scsi-next: SCSI: Standard INQUIRY data should report HiSup flag as set. scsi-disk: use scsi_data_cdb_length scsi: introduce scsi_cdb_length and scsi_data_cdb_length scsi-disk: fix check for out-of-range LBA scsi-disk: introduce check_lba_range iSCSI: We dont need to explicitely call qemu_notify_event() any more iSCSI: We need to support SG_IO also from iscsi_ioctl()
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由 Anthony Liguori 提交于
* bonzini/nbd-next: nbd: add nbd_export_get_blockdev nbd: negotiate with named exports nbd: register named exports qemu-nbd: rewrite termination conditions to use a state machine nbd: add notification for closing an NBDExport nbd: track clients into NBDExport nbd: add reference counting to NBDExport nbd: do not leak nbd_trip coroutines when a connection is torn down nbd: make refcount interface public nbd: do not close BlockDriverState in nbd_export_close nbd: pass NBDClient to nbd_send_negotiate nbd: add more constants
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- 24 9月, 2012 19 次提交
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由 Jeff Cody 提交于
The keep_read_only flag is no longer used, in favor of the bdrv flag BDRV_O_ALLOW_RDWR. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
Currently, bdrv_commit() reopens images r/w itself, via risky _delete() and _open() calls. Use the new safe method for drive reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
There is currently nothing that needs to be done for VPC image file reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
There is currently nothing that needs to be done for VDI reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
This patch supports reopen for VMDK image files. VMDK extents are added to the existing reopen queue, so that the transactional model of reopen is maintained with multiple image files. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
These are the stubs for the file reopen drivers for the qcow format. There is currently nothing that needs to be done by the qcow driver in reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
These are the stubs for the file reopen drivers for the qcow2 format. There is currently nothing that needs to be done by the qcow2 driver in reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
These are the stubs for the file reopen drivers for the qed format. There is currently nothing that needs to be done by the qed driver in reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
These are the stubs for the file reopen drivers for the raw format. There is currently nothing that needs to be done by the raw driver in reopen. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
This is derived from the Supriya Kannery's reopen patches. This contains the raw-posix driver changes for the bdrv_reopen_* functions. All changes are staged into a temporary scratch buffer during the prepare() stage, and copied over to the live structure during commit(). Upon abort(), all changes are abandoned, and the live structures are unmodified. The _prepare() will create an extra fd - either by means of a dup, if possible, or opening a new fd if not (for instance, access control changes). Upon _commit(), the original fd is closed and the new fd is used. Upon _abort(), the duplicate/new fd is closed. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
The aligned_buf pointer and aligned_buf size are no longer used in raw_posix.c, so remove all references to them. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
Rather than check for a non-NULL aligned_buf to determine if raw_aio_submit needs to check for alignment, check for the presence of BDRV_O_NOCACHE in the bs->open_flags. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
Block drivers should ignore BDRV_O_CACHE_WB in .bdrv_open flags, and in the bs->open_flags. This patch removes the code, leaving the behaviour behind as if BDRV_O_CACHE_WB was set. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
Code motion, to move parsing of open flags into a helper function. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
Move AIO initialization for raw-posix block driver into a helper function. In addition to just code motion, the aio_ctx pointer is checked for NULL, prior to calling laio_init(), to make sure laio_init() is only run once. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
This is based on Supriya Kannery's bdrv_reopen() patch series. This provides a transactional method to reopen multiple images files safely. Image files are queue for reopen via bdrv_reopen_queue(), and the reopen occurs when bdrv_reopen_multiple() is called. Changes are staged in bdrv_reopen_prepare() and in the equivalent driver level functions. If any of the staged images fails a prepare, then all of the images left untouched, and the staged changes for each image abandoned. Block drivers are passed a reopen state structure, that contains: * BDS to reopen * flags for the reopen * opaque pointer for any driver-specific data that needs to be persistent from _prepare to _commit/_abort * reopen queue pointer, if the driver needs to queue additional BDS for a reopen Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
bdrv_set_enable_write_cache() sets the bs->enable_write_cache flag, but without the flag recorded in bs->open_flags, then next time a reopen() is performed the enable_write_cache setting may be inadvertently lost. This will set the flag in open_flags, so it is preserved across reopens. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
I believe the bs->keep_read_only flag is supposed to reflect the initial open state of the device. If the device is initially opened R/O, then commit operations, or reopen operations changing to R/W, are prohibited. Currently, the keep_read_only flag is only accurate for the active layer, and its backing file. Subsequent images end up always having the keep_read_only flag set. For instance, what happens now: [ base ] kro = 1, ro = 1 | v [ snap-1 ] kro = 1, ro = 1 | v [ snap-2 ] kro = 0, ro = 1 | v [ active ] kro = 0, ro = 0 What we want: [ base ] kro = 0, ro = 1 | v [ snap-1 ] kro = 0, ro = 1 | v [ snap-2 ] kro = 0, ro = 1 | v [ active ] kro = 0, ro = 0 Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Shanahan 提交于
If readonly=on is given at device creation time, the ->readonly flag needs to be set in the block driver state for this device so that readonly-ness is preserved across media changes (qmp change command). Similarly, to preserve the snapshot property requires ->open_flags to be correct. Signed-off-by: NKevin Shanahan <kmshanah@disenchant.net> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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