- 05 12月, 2008 7 次提交
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由 aliguori 提交于
Balloon devices allow you to ask the guest to allocate memory. This allows you to release that memory. It's mostly useful for freeing up large chunks of memory from cooperative guests. Ballooning is supported by both Xen and VirtIO. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5873 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
As suggested by Laurent Desnogues. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5872 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
TARGET_PAGE_SIZE should only be used internal to qemu, not in guest/host interfaces. The virtio frontend code in Linux uses two constants (PFN shift and vring alignment) for the interface, so update qemu to match. I've tested this with PowerPC KVM and confirmed that it fixes virtio problems when using non-TARGET_PAGE_SIZE pages in the guest. Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5871 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Virtio-blk is a paravirtual block device based on VirtIO. It can be used by specifying the if=virtio parameter to the -drive parameter. When using -enable-kvm, it can achieve very good performance compared to IDE or SCSI. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5870 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
This patch adds core support for VirtIO. VirtIO is a paravirtualization framework that has been in Linux since 2.6.21. A PCI transport has been available since 2.6.25. Network drivers are also available for Windows. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5869 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
This is needed for virtio. The implementation is originally from Marcelo Tosatti. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5868 c046a42c-6fe2-441c-8c8c-71466251a162
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由 malc 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5867 c046a42c-6fe2-441c-8c8c-71466251a162
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- 04 12月, 2008 4 次提交
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由 malc 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5866 c046a42c-6fe2-441c-8c8c-71466251a162
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由 malc 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5865 c046a42c-6fe2-441c-8c8c-71466251a162
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由 malc 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5864 c046a42c-6fe2-441c-8c8c-71466251a162
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由 blueswir1 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5863 c046a42c-6fe2-441c-8c8c-71466251a162
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- 03 12月, 2008 10 次提交
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由 aurel32 提交于
This PCI controller can be found on a number of 4xx SoCs, including the 440EP. Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Acked-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5862 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Change order of metadata update to prevent loosing guest data because of unexpected exit (Gleb Natapov) Currently the order is this (during cow since it's the interesting case): 1. Decrement refcount of old clusters 2. Increment refcount for newly allocated clusters 3. Copy content of old sectors that will not be rewritten 4. Update L2 table with pointers to new clusters 5. Write guest data into new clusters (asynchronously) There are several problems with this order. The first one is that if qemu crashes (or killed or host reboots) after new clusters are linked into L2 table but before user data is written there, then on the next reboot guest will find neither old data nor new one in those sectors and this is not what gust expects even when journaling file system is in use. The other problem is that if qemu is killed between steps 1 and 4 then refcount of old cluster will be incorrect and may cause snapshot corruption. The patch change the order to be like this: 1. Increment refcount for newly allocated clusters 2. Write guest data into new clusters (asynchronously) 3. Copy content of old sectors that were not rewritten 4. Update L2 table with pointers to new clusters 5. Decrement refcount of old clusters Unexpected crash may cause cluster leakage, but guest data should be safe. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5861 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Move duplicated code into helper functions. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5860 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Otherwise if VM is killed between two writes data may be lost. But if offset and size fields are at the same disk block one write should update them both simultaneously. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5859 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Use it to remove code duplications from qcow_aio_read_cb(). Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5858 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Fix indentation. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5857 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
When using an existing unix socket like: -vnc unix:/tmp/file1Y2nY2 qemu fails to bind a unix socket because the vnc call to unix_listen includes the unix: prefix and stores that in the unix.sun_path. The fix is to not pass in unix: for the filename (same way qemu-char.c does it). Signed-off-by: NRyan Harper <ryanh@us.ibm.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5856 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Signed-off-by: NJan Kiszka <jan.kiszka@web.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5855 c046a42c-6fe2-441c-8c8c-71466251a162
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由 blueswir1 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5854 c046a42c-6fe2-441c-8c8c-71466251a162
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由 blueswir1 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5853 c046a42c-6fe2-441c-8c8c-71466251a162
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- 02 12月, 2008 4 次提交
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由 pbrook 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5852 c046a42c-6fe2-441c-8c8c-71466251a162
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由 malc 提交于
VNC should not maintain modifer state upon reconnects With some window managers/vnc clients it will only see a key down event for a modifier followed by immediate disconnect(think Alt-F4), with a net effect of subsequently connected clients operating as if the modifier was never released. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5851 c046a42c-6fe2-441c-8c8c-71466251a162
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由 malc 提交于
This allows among other things to capturing A/V of running guests. Ad-hoc client that does this (via script that invokes ffmpeg) can be found at: http://repo.or.cz/w/qemu/malc.git?a=tree;f=vcap;hb=capture3 Thanks to Anthony Liguori for comments and review. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5850 c046a42c-6fe2-441c-8c8c-71466251a162
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由 pbrook 提交于
Signed-off-by: NPaul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5849 c046a42c-6fe2-441c-8c8c-71466251a162
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- 01 12月, 2008 15 次提交
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由 pbrook 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5848 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
According to malc TCG will often genereate an add2/sub2/mul2 with low half of the output in the same register as high half of one of the inputs, so account for that. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5847 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5846 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
Otherwise when tb_exit generates a jump beyond the pc-relative range, tcg_out_goto() spans two/three instructions and we load the tb return value from a wrong address. This is #ifdefed out currently because we take care for the jumps to be local. Problem spotted by Steffen Liebergeld. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5845 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
Unfortunately this range is so narrow that I'm not sure if it makes more sense to always use memory load to pc kind of branch instead. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5844 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
Calling the clear cache syscall directly generates an illegal instruction on some (armv4) kernels. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5843 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5842 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5841 c046a42c-6fe2-441c-8c8c-71466251a162
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由 balrog 提交于
Otherwise we get a segfault. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5840 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aurel32 提交于
Data integrity is not important in qemu-img, so open the files with cache=writeback. This fixes the performance regression seen with qemu-img since revision 5485, and most particularly with the qcow2 format. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5839 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aurel32 提交于
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5838 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aurel32 提交于
Should not give any performance penality given cpu_mmu_index() is an inline function returning a value from env. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5837 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aurel32 提交于
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5836 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aurel32 提交于
Minor fixes of spelling and grammar in comments and documentation Signed-off-by: NStefan Weil <weil@mail.berlios.de> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5835 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aurel32 提交于
Fix data type (this fixes a warning from sparse) Signed-off-by: NStefan Weil <weil@mail.berlios.de> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5834 c046a42c-6fe2-441c-8c8c-71466251a162
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