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authorMarcelo Tosatti <mtosatti@redhat.com>2008-06-06 16:37:35 -0300
committerAvi Kivity <avi@qumranet.com>2008-06-24 12:16:52 +0300
commitd4acf7e7abe45457e751525a2a4d5b693dfdd597 (patch)
tree2ff1cf6f59b0591ea39c0457705188d5f46cb118 /crypto/gcm.c
parent62786b9e81a2dbe9c073a2ade52d33a2627d6d85 (diff)
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>
Diffstat (limited to 'crypto/gcm.c')
0 files changed, 0 insertions, 0 deletions