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Marcelo Tosatti d4acf7e7ab KVM: Fix race between timer migration and vcpu migration 
A guest vcpu instance can be scheduled to a different physical CPU
between the test for KVM_REQ_MIGRATE_TIMER and local_irq_disable().

If that happens, the timer will only be migrated to the current pCPU on
the next exit, meaning that guest LAPIC timer event can be delayed until
a host interrupt is triggered.

Fix it by cancelling guest entry if any vcpu request is pending.  This
has the side effect of nicely consolidating vcpu->requests checks.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-06-24 12:16:52 +03:00
..
alpha alpha: resurrect Cypress IDE quirk 2008-06-20 16:46:10 -07:00
arm [ARM] 5077/1: spi: fix list scan success verification in PXA ssp driver 2008-06-11 23:38:46 +01:00
avr32 avr32: Fix cpufreq oops when ondemand governor is default 2008-05-27 09:37:42 +02:00
blackfin Blackfin arch: protect only the SPI bus controller with CONFIG_SPI_BFIN 2008-06-07 15:03:01 +08:00
cris
frv Fix various old email addresses for dwmw2 2008-06-06 11:29:10 -07:00
h8300
ia64 [IA64] SN2: security hole in sn2_ptc_proc_write 2008-06-20 12:02:00 -07:00
m32r
m68k m68k: enable CONFIG_COMPAT_BRK by default 2008-06-06 11:29:09 -07:00
m68knommu m68knommu: init coldfire timer TRR with n - 1, not n 2008-06-12 18:05:40 -07:00
mips [MIPS] Au1200: MMC resource size off by one 2008-06-16 15:14:49 +01:00
mn10300 MN10300: Kill linux/a.out.h inclusions 2008-06-16 10:20:57 -07:00
parisc parisc: fix off by one in setup_sigcontext32 2008-06-13 10:49:55 -04:00
powerpc Reinstate ZERO_PAGE optimization in 'get_user_pages()' and fix XIP 2008-06-20 11:18:25 -07:00
ppc [POWERPC] Export empty_zero_page and copy_page in arch/ppc 2008-05-31 17:08:28 +10:00
s390 Merge branch 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm 2008-06-11 10:35:44 -07:00
sh sh: Add -mno-fdpic to default flags. 2008-06-09 16:49:43 +09:00
sparc sparc: switch /proc/led to seq_file 2008-06-03 15:21:21 -07:00
sparc64 sparc64: Prevent stack backtrace false positives on trap frames. 2008-05-21 21:50:01 -07:00
um uml: work around broken host PTRACE_SYSEMU 2008-06-12 18:05:40 -07:00
v850
x86 KVM: Fix race between timer migration and vcpu migration 2008-06-24 12:16:52 +03:00
xtensa
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