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2016-09-23util: Add UUID APIFam Zheng1-19/+0
A number of different places across the code base use CONFIG_UUID. Some of them are soft dependency, some are not built if libuuid is not available, some come with dummy fallback, some throws runtime error. It is hard to maintain, and hard to reason for users. Since UUID is a simple standard with only a small number of operations, it is cleaner to have a central support in libqemuutil. This patch adds qemu_uuid_* functions that all uuid users in the code base can rely on. Except for qemu_uuid_generate which is new code, all other functions are just copy from existing fallbacks from other files. Note that qemu_uuid_parse is moved without updating the function signature to use QemuUUID, to keep this patch simple. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Message-Id: <1474432046-325-2-git-send-email-famz@redhat.com>
2016-05-23cpu: Eliminate cpudef_init(), cpudef_setup()Eduardo Habkost1-7/+0
x86_cpudef_init() doesn't do anything anymore, cpudef_init(), cpudef_setup(), and x86_cpudef_init() can be finally removed. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-05-19qemu-common: push cpu.h inclusion out of qemu-common.hPaolo Bonzini1-0/+2
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22util: move declarations out of qemu-common.hVeronia Bahaa1-0/+1
Move declarations out of qemu-common.h for functions declared in utils/ files: e.g. include/qemu/path.h for utils/path.c. Move inline functions out of qemu-common.h and into new files (e.g. include/qemu/bcd.h) Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-04all: Clean up includesPeter Maydell1-1/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-16-git-send-email-peter.maydell@linaro.org
2016-01-13error: Use error_reportf_err() where it makes obvious senseMarkus Armbruster1-3/+1
Done with this Coccinelle semantic patch @@ expression FMT, E, S; expression list ARGS; @@ - error_report(FMT, ARGS, error_get_pretty(E)); + error_reportf_err(E, FMT/*@@@*/, ARGS); ( - error_free(E); | exit(S); | abort(); ) followed by a replace of '%s"/*@@@*/' by '"' and some line rewrapping, because I can't figure out how to make Coccinelle transform strings. We now use the error whole instead of just its message obtained with error_get_pretty(). This avoids suppressing its hint (see commit 50b7b00), but I can't see how the errors touched in this commit could come with hints. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1450452927-8346-12-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-08-13smbios: move smbios code into a common folderWei Huang1-1/+1
To share smbios among different architectures, this patch moves SMBIOS code (smbios.c and smbios.h) from x86 specific folders into new hw/smbios directories. As a result, CONFIG_SMBIOS=y is defined in x86 default config files. Acked-by: Gabriel Somlo <somlo@cmu.edu> Tested-by: Gabriel Somlo <somlo@cmu.edu> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> Signed-off-by: Wei Huang <wei@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-06-12migration: reduce include filesJuan Quintela1-23/+0
To make changes easier, with the copy, I maintained almost all include files. Now I remove the unnecessary ones on this patch. This compiles on linux x64 with all architectures configured, and cross-compiles for windows 32 and 64 bits. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-12migration: move ram stuff to migration/ramJuan Quintela1-1588/+0
For historic reasons, ram migration have been on arch_init.c. Just split it into migration/ram.c, the same that happened with block.c. There is only code movement, no changes altogether. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-06-05migration: move dirty bitmap sync to ram_addr.hStefan Hajnoczi1-44/+2
The dirty memory bitmap is managed by ram_addr.h and copied to migration_bitmap[] periodically during live migration. Move the code to sync the bitmap to ram_addr.h where related code lives. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <1417519399-3166-5-git-send-email-stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-02arch_init: Drop target-x86_64.confIkey Doherty1-1/+0
The target-x86_64.conf sysconfig file has been empty and essentially ignored now for several years. This change removes the unused file to enable moving towards a stateless configuration. Signed-off-by: Ikey Doherty <michael.i.doherty@intel.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-05-07migration: Fix migration state update issueLiang Li1-1/+1
If live migration is very fast and can be completed in 1 second, the dirty_sync_count of MigrationState will not be updated. Then you will see "dirty sync count: 0" in qemu monitor even if the actual dirty sync count is not 0. Signed-off-by: Liang Li <liang.z.li@intel.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-07migration: avoid divide by zero in xbzrle cache miss rateMichael Chapman1-3/+5
This bug manifested itself as a VM that could not be resumed by libvirt following a migration: # virsh resume example error: Failed to resume domain example error: internal error: cannot parse json {"return": {"xbzrle-cache": {..., "cache-miss-rate": -nan, ...}, ... } }: lexical error: malformed number, a digit is required after the minus sign. This patch also ensures xbzrle_cache_miss_prev and iterations_prev are cleared at the start of the migration. Signed-off-by: Michael Chapman <mike@very.puzzling.org> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-07migration: Add the core code for decompressionLiang Li1-2/+48
Implement the core logic of multiple thread decompression, the decompression can work now. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-07migration: Make compression co-work with xbzrleLiang Li1-1/+11
Now, multiple thread compression can co-work with xbzrle. when xbzrle is on, multiple thread compression will only work at the first round of RAM data sync. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-07migration: Add the core code of multi-thread compressionLiang Li1-7/+178
Implement the core logic of the multiple thread compression. At this point, multiple thread compression can't co-work with xbzrle yet. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-06migration: Split save_zero_page from ram_save_pageLiang Li1-18/+43
Split the function save_zero_page from ram_save_page so that we can reuse it later. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-06arch_init: Add and free data struct for decompressionLiang Li1-1/+12
Define the data structure and variables used to do multiple thread decompression, and add the code to initialize and free them. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-06arch_init: Alloc and free data struct for compressionLiang Li1-1/+34
Define the data structure and variables used to do multiple thread compression, and add the code to initialize and free them. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-06migration: Add the framework of multi-thread decompressionLiang Li1-0/+77
Add the code to create and destroy the multiple threads those will be used to do data decompression. Left some functions empty just to keep clearness, and the code will be added later. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-05-06migration: Add the framework of multi-thread compressionLiang Li1-2/+92
Add the code to create and destroy the multiple threads those will be used to do data compression. Left some functions empty to keep clearness, and the code will be added later. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@intel.com> Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-26migration: remove last_sent_block from save_page_headerJuan Quintela1-6/+6
Compression code (still not on tree) want to call this funtion from outside the migration thread, so we can't write to last_sent_block. Instead of reverting full patch: [PULL 07/11] save_block_hdr: we can recalculate Just revert the parts that touch last_sent_block. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2015-03-17arch_init: Count the total number of pages by using helper functionzhanghailiang1-7/+1
There is already a helper function ram_bytes_total(), we can use it to help counting the total number of pages used by ram blocks. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16rename save_block_hdr to save_page_headerJuan Quintela1-8/+19
It has always been a page header, not a block header. Once there, the flag argument was only passed to make a bit or with it, just do the or on the caller. Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16save_block_hdr: we can recalculate the cont parameter hereJuan Quintela1-23/+24
No need to pass it through all the callers. Once there, update last_sent_block here. Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16save_xbzrle_page: change calling conventionJuan Quintela1-19/+25
Add a parameter to pass the number of bytes written, and make it return the number of pages written instead. Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16ram_save_page: change calling coventionJuan Quintela1-19/+38
Add a parameter to pass the number of bytes written, and make it return the number of pages written instead. Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16ram_find_and_save_block: change calling conventionJuan Quintela1-22/+23
Add a parameter to pass the number of bytes written, and make it return the number of pages written instead. Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16ram: make all save_page functions take a uint64_t parameterJuan Quintela1-3/+8
It used to be an int, but then we can't pass directly the bytes_transferred parameter, that would happen later in the series. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com>
2015-02-26Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2015-02-18' ↵Peter Maydell1-2/+1
into staging Clean up around error_get_pretty(), qerror_report_err() # gpg: Signature made Wed Feb 18 10:10:07 2015 GMT using RSA key ID EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" * remotes/armbru/tags/pull-error-2015-02-18: qemu-char: Avoid qerror_report_err() outside QMP command handlers qemu-img: Avoid qerror_report_err() outside QMP command handlers vl: Avoid qerror_report_err() outside QMP command handlers tpm: Avoid qerror_report_err() outside QMP command handlers numa: Avoid qerror_report_err() outside QMP command handlers net: Avoid qerror_report_err() outside QMP command handlers monitor: Avoid qerror_report_err() outside QMP command handlers monitor: Clean up around monitor_handle_fd_param() error: Use error_report_err() where appropriate error: New convenience function error_report_err() vhost-scsi: Improve error reporting for invalid vhostfd Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-02-18error: Use error_report_err() where appropriateMarkus Armbruster1-2/+1
Coccinelle semantic patch: @@ expression E; @@ - error_report("%s", error_get_pretty(E)); - error_free(E); + error_report_err(E); @@ expression E, S; @@ - error_report("%s", error_get_pretty(E)); + error_report_err(E); ( exit(S); | abort(); ) Trivial manual touch-ups in block/sheepdog.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-02-16Convert ram_list to RCUMike Day1-18/+47
Allow "unlocked" reads of the ram_list by using an RCU-enabled QLIST. The ramlist mutex is kept. call_rcu callbacks are run with the iothread lock taken, but that may change in the future. Writers still take the ramlist mutex, but they no longer need to assume that the iothread lock is taken. Readers of the list, instead, no longer require either the iothread or ramlist mutex, but they need to use rcu_read_lock() and rcu_read_unlock(). One place in arch_init.c was downgrading from write side to read side like this: qemu_mutex_lock_iothread() qemu_mutex_lock_ramlist() ... qemu_mutex_unlock_iothread() ... qemu_mutex_unlock_ramlist() and the equivalent idiom is: qemu_mutex_lock_ramlist() rcu_read_lock() ... qemu_mutex_unlock_ramlist() ... rcu_read_unlock() Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16exec: convert ram_list to QLISTMike Day1-9/+10
QLIST has RCU-friendly primitives, so switch to it. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16cosmetic changes preparing for the following patchesMike Day1-5/+4
Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-15xbzrle: optimize XBZRLE to decrease the cache missesChenLiang1-3/+5
Avoid hot pages being replaced by others to remarkably decrease cache misses Sample results with the test program which quote from xbzrle.txt ran in vm:(migrate bandwidth:1GE and xbzrle cache size 8MB) the test program: include <stdlib.h> include <stdio.h> int main() { char *buf = (char *) calloc(4096, 4096); while (1) { int i; for (i = 0; i < 4096 * 4; i++) { buf[i * 4096 / 4]++; } printf("."); } } before this patch: virsh qemu-monitor-command test_vm '{"execute": "query-migrate"}' {"return":{"expected-downtime":1020,"xbzrle-cache":{"bytes":1108284, "cache-size":8388608,"cache-miss-rate":0.987013,"pages":18297,"overflow":8, "cache-miss":1228737},"status":"active","setup-time":10,"total-time":52398, "ram":{"total":12466991104,"remaining":1695744,"mbps":935.559472, "transferred":5780760580,"dirty-sync-counter":271,"duplicate":2878530, "dirty-pages-rate":29130,"skipped":0,"normal-bytes":5748592640, "normal":1403465}},"id":"libvirt-706"} 18k pages sent compressed in 52 seconds. cache-miss-rate is 98.7%, totally miss. after optimizing: virsh qemu-monitor-command test_vm '{"execute": "query-migrate"}' {"return":{"expected-downtime":2054,"xbzrle-cache":{"bytes":5066763, "cache-size":8388608,"cache-miss-rate":0.485924,"pages":194823,"overflow":0, "cache-miss":210653},"status":"active","setup-time":11,"total-time":18729, "ram":{"total":12466991104,"remaining":3895296,"mbps":937.663549, "transferred":1615042219,"dirty-sync-counter":98,"duplicate":2869840, "dirty-pages-rate":58781,"skipped":0,"normal-bytes":1588404224, "normal":387794}},"id":"libvirt-266"} 194k pages sent compressed in 18 seconds. The value of cache-miss-rate decrease to 48.59%. Signed-off-by: ChenLiang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2015-01-08arch_init: support resizing on incoming migrationMichael S. Tsirkin1-5/+8
If block used_length does not match, try to resize it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-08exec: split length -> used_length/max_lengthMichael S. Tsirkin1-9/+10
This patch allows us to distinguish between two length values for each block: max_length - length of memory block that was allocated used_length - length of block used by QEMU/guest Currently, we set used_length - max_length, unconditionally. Follow-up patches allow used_length <= max_length. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-20migration: static variables will not be reset at second migrationChenLiang1-3/+12
The static variables in migration_bitmap_sync will not be reset in the case of a second attempted migration. Signed-off-by: ChenLiang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-11-18migration: fix parameter validation on ram loadMichael S. Tsirkin1-2/+3
During migration, the values read from migration stream during ram load are not validated. Especially offset in host_from_stream_offset() and also the length of the writes in the callers of said function. To fix this, we need to make sure that the [offset, offset + length] range fits into one of the allocated memory regions. Validating addr < len should be sufficient since data seems to always be managed in TARGET_PAGE_SIZE chunks. Fixes: CVE-2014-7840 Note: follow-up patches add extra checks on each block->host access. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-10-14migration: catch unknown flag combinations in ram_loadPeter Lieven1-30/+32
this patch extends commit db80fac by not only checking for unknown flags, but also filtering out unknown flag combinations. Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-10-04accel: Remove tcg_available() functionEduardo Habkost1-5/+0
As the function always return 1, it is not needed anymore. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-01target-tricore: Add target stubs and qom-cpuBastian Koppelmann1-0/+2
Add TriCore target stubs, and QOM cpu, and Maintainer Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Message-id: 1409572800-4116-2-git-send-email-kbastian@mail.uni-paderborn.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-09Show length mismatch error is hexAlex Bligh1-2/+2
When live migrate fails due to a section length mismatch we currently see an error message like: Length mismatch: 0000:00:03.0/virtio-net-pci.rom: 10000 in != 20000 The section lengths are in fact in hex, so this should read Length mismatch: 0000:00:03.0/virtio-net-pci.rom: 0x10000 in != 0x20000 Correct the error string to reflect this. Signed-off-by: Alex Bligh <alex@alex.org.uk> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-16migration: catch unknown flags in ram_loadPeter Lieven1-19/+23
if a saved vm has unknown flags in the memory data qemu currently simply ignores this flag and continues which yields in an unpredictable result. This patch catches all unknown flags and aborts the loading of the vm. Additionally error reports are thrown if the migration aborts abnormally. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-06-10migration: Plug memory leak in migrate-set-cache-size commandChen Gang1-1/+0
We call g_free() after cache_fini() in migration_end(), but we don't call it after cache_fini() in xbzrle_cache_resize(), leaking the memory. cache_init() and cache_fini() are a pair. Since cache_init() allocates the cache, let cache_fini() free it. This plugs the leak. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-24arch_init: replace fprintf(stderr, ...) with error_report()Le Tan1-17/+15
Replace fprintf(stderr,...) with error_report() in the file arch_init.c. The trailing "\n"s of the @fmt argument have been removed because @fmt of error_report() should not contain newline. Signed-off-by: Le Tan <tamlokveer@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-14Split ram_save_blockDr. David Alan Gilbert1-62/+79
ram_save_block is getting a bit too complicated, and does two separate things: 1) Finds a page to send 2) Sends the page (dealing with compression etc) Split into 'ram_save_page' to send the page and deal with compression (2) Rename remaining function to 'ram_find_and_save_block' Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-14arch_init: Simplify code for load_xbzrle()Chen Gang1-10/+4
For xbzrle_decode_buffer(), when decoding contents will exceed writing buffer, it will return -1, so need not check the return value whether large than writing buffer. And when failure occurs within load_xbzrle(), it always return -1 without any resources which need release. So can remove the related checking statements, and also can remove 'rc' and 'ret' local variables, Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-07arch_init: Be sure of only one exit entry with DPRINTF() for ram_load()Chen Gang1-4/+8
When DPRINTF() has effect, the original author wants to print all ram_load() calling results. So need use 'goto' instead of 'return' within ram_load(), just like other areas have done. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-05migration: expose xbzrle cache miss rateChenLiang1-0/+18
expose xbzrle cache miss rate Signed-off-by: ChenLiang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
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