- 21 12月, 2012 9 次提交
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由 Juan Quintela 提交于
This is the last block from where we have sent data. Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Juan Quintela 提交于
Code just now does (simplified for clarity) if (qemu_savevm_state_iterate(s->file) == 1) { vm_stop_force_state(RUN_STATE_FINISH_MIGRATE); qemu_savevm_state_complete(s->file); } Problem here is that qemu_savevm_state_iterate() returns 1 when it knows that remaining memory to sent takes less than max downtime. But this means that we could end spending 2x max_downtime, one downtime in qemu_savevm_iterate, and the other in qemu_savevm_state_complete. Changed code to: pending_size = qemu_savevm_state_pending(s->file, max_size); DPRINTF("pending size %lu max %lu\n", pending_size, max_size); if (pending_size >= max_size) { ret = qemu_savevm_state_iterate(s->file); } else { vm_stop_force_state(RUN_STATE_FINISH_MIGRATE); qemu_savevm_state_complete(s->file); } So what we do is: at current network speed, we calculate the maximum number of bytes we can sent: max_size. Then we ask every save_live section how much they have pending. If they are less than max_size, we move to complete phase, otherwise we do an iterate one. This makes things much simpler, because now individual sections don't have to caluclate the bandwidth (it was implossible to do right from there). Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Umesh Deshpande 提交于
Add the new mutex that protects shared state between ram_save_live and the iothread. If the iothread mutex has to be taken together with the ramlist mutex, the iothread shall always be _outside_. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NUmesh Deshpande <udeshpan@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NOrit Wasserman <owasserm@redhat.com>
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由 Umesh Deshpande 提交于
This will be used to detect if last_block might have become invalid across different calls to ram_save_live. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NUmesh Deshpande <udeshpan@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NOrit Wasserman <owasserm@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Paolo Bonzini 提交于
Most of the time, only 2 items will be active (from/to for a string operation, or code/data). But TCG guests likely won't have gigabytes of memory, so this actually goes down to 1 item. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Paolo Bonzini 提交于
Cc: qemu-stable@nongnu.org Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 19 12月, 2012 7 次提交
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Various header files rely on qemu-char.h including qemu-config.h or main-loop.h, but they really do not need qemu-char.h at all (particularly interesting is the case of the block layer!). Clean this up, and also add missing inclusions of qemu-char.h itself. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 17 12月, 2012 1 次提交
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由 Michael S. Tsirkin 提交于
update all users so we can remove the makefile hack. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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- 13 12月, 2012 2 次提交
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由 David Gibson 提交于
madvise(DONTNEED) will throw away the contents of the whole page at the given address, even if the given length is less than the page size. One can argue about whether that's the correct behaviour, but that's what it's done for a long time in Linux at least. That means that the madvise() in ram_load(), on a setup where TARGET_PAGE_SIZE is smaller than the host page size, can throw away data in guest pages adjacent to the one it's actually processing right now, leading to guest memory corruption on an incoming migration. This patch therefore, disables the madvise() if the host page size is larger than TARGET_PAGE_SIZE. This means we don't get the benefits of that madvise() in this case, but a more complete fix is more difficult to accomplish. This at least fixes the guest memory corruption. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reported-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 David Gibson 提交于
The code for migrating (or savevm-ing) memory pages starts off by creating a dirty bitmap and filling it with 1s. Except, actually, because bit addresses are 0-based it fills every bit except bit 0 with 1s and puts an extra 1 beyond the end of the bitmap, potentially corrupting unrelated memory. Oops. This patch fixes it. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 18 10月, 2012 10 次提交
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由 Juan Quintela 提交于
It indicates how many pages were dirtied during the last second. Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Juan Quintela 提交于
This patch creates a migration bitmap, which is periodically kept in sync with the qemu bitmap. A separate copy of the dirty bitmap for the migration limits the amount of concurrent access to the qemu bitmap from iothread and migration thread (which requires taking the big lock). We use the qemu bitmap type. We have to "undo" the dirty_pages counting optimization on the general dirty bitmap and do the counting optimization with the migration local bitmap. Signed-off-by: NUmesh Deshpande <udeshpan@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Juan Quintela 提交于
Helper that we use each time that we need to syncronize the migration bitmap with the other dirty bitmaps. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Juan Quintela 提交于
It just test if the dirty bit is set, and clears it. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NOrit Wasserman <owasserm@redhat.com>
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由 Juan Quintela 提交于
It just marks a region of memory as dirty. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NOrit Wasserman <owasserm@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NOrit Wasserman <owasserm@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NOrit Wasserman <owasserm@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 21 9月, 2012 1 次提交
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由 Eduardo Habkost 提交于
This file is not needed anymore, as QEMU won't ship any config-based cpudefs out of the box, relying only on the builtin CPU models. Signed-off-by: NEduardo Habkost <ehabkost@redhat.com> Reviewed-by: NIgor Mammedov <imammedo@redhat.com> Signed-off-by: NAndreas Färber <afaerber@suse.de>
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- 19 9月, 2012 1 次提交
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由 Peter Maydell 提交于
For architectures which don't set HAS_AUDIO_CHOICE, improve the '-soundhw help' message so that it doesn't simply print an empty list, implying no sound support at all. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: Nmalc <av1474@comtv.ru>
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- 14 9月, 2012 1 次提交
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由 Igor Mitsyanko 提交于
'%' symbols were missing in front of PRIu64 macros in DPRINTF() messages in arch_init.c, this caused compilation warnings when compiled with DEBUG_ARCH_INIT defined. Signed-off-by: NIgor Mitsyanko <i.mitsyanko@samsung.com> Signed-off-by: NStefan Hajnoczi <stefanha@gmail.com>
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- 22 8月, 2012 1 次提交
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由 Daniel P. Berrange 提交于
Add a 'query-target' QAPI command to allow management applications to determine what target architecture a QEMU binary is emulating without having to parse the binary name or -help output $ qmp-shell -p /tmp/qemu (QEMU) query-target { u'return': { u'arch': u'x86_64' }} Signed-off-by: NDaniel P. Berrange <berrange@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 11 8月, 2012 1 次提交
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由 Guan Xuetao 提交于
This patch adds unicore32-softmmu build support, include configure, makefile, arch_init, and all missing functions needed by softmmu. Although all missing functions are empty, unicore32-softmmu could be build successfully. By 20120804: change QEMU_ARCH_UNICORE32 to 0x4000 Signed-off-by: NGuan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 08 8月, 2012 5 次提交
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NLuiz Capitulino <lcapitulino@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Orit Wasserman 提交于
Signed-off-by: NBenoit Hudzia <benoit.hudzia@sap.com> Signed-off-by: NPetter Svard <petters@cs.umu.se> Signed-off-by: NAidan Shribman <aidan.shribman@sap.com> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NLuiz Capitulino <lcapitulino@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Orit Wasserman 提交于
Signed-off-by: NBenoit Hudzia <benoit.hudzia@sap.com> Signed-off-by: NPetter Svard <petters@cs.umu.se> Signed-off-by: NAidan Shribman <aidan.shribman@sap.com> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NLuiz Capitulino <lcapitulino@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Orit Wasserman 提交于
Change XBZRLE cache size in bytes (the size should be a power of 2, it will be rounded down to the nearest power of 2). If XBZRLE cache size is too small there will be many cache miss. New query-migrate-cache-size QMP command and 'info migrate_cache_size' HMP command to query cache value. Signed-off-by: NBenoit Hudzia <benoit.hudzia@sap.com> Signed-off-by: NPetter Svard <petters@cs.umu.se> Signed-off-by: NAidan Shribman <aidan.shribman@sap.com> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NLuiz Capitulino <lcapitulino@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Orit Wasserman 提交于
In the outgoing migration check to see if the page is cached and changed, then send compressed page by using save_xbrle_page function. In the incoming migration check to see if RAM_SAVE_FLAG_XBZRLE is set and decompress the page (by using load_xbrle function). Signed-off-by: NBenoit Hudzia <benoit.hudzia@sap.com> Signed-off-by: NPetter Svard <petters@cs.umu.se> Signed-off-by: NAidan Shribman <aidan.shribman@sap.com> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NLuiz Capitulino <lcapitulino@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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- 03 8月, 2012 1 次提交
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由 Peter Maydell 提交于
For command line options which permit '?' meaning 'please list the permitted values', add support for 'help' as a synonym, by abstracting the check out into a helper function. This change means that in some cases where we were being lazy in our string parsing, "?junk" will now be rejected as an invalid option rather than being (undocumentedly) treated the same way as "?". Update the documentation to use 'help' rather than '?', since '?' is a shell metacharacter and thus prone to fail confusingly if there is a single character filename in the current working directory and the '?' has not been escaped. It's therefore better to steer users towards 'help', though '?' is retained for backwards compatibility. We do not, however, update the output of the system emulator's -help (or any documentation autogenerated from the qemu-options.hx which is the source of the -help text) because libvirt parses our -help output and will break. At a later date when QEMU provides a better interface so libvirt can avoid having to do this, we can update the -help text too. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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