e9571ed54b
There is a window open between testing of pending IRQ's and assignment of guest_mode in __vcpu_run. Injection of IRQ's can race with __vcpu_run as follows: CPU0 CPU1 kvm_x86_ops->run() vcpu->guest_mode = 0 SET_IRQ_LINE ioctl .. kvm_x86_ops->inject_pending_irq kvm_cpu_has_interrupt() apic_test_and_set_irr() kvm_vcpu_kick if (vcpu->guest_mode) send_ipi() vcpu->guest_mode = 1 So move guest_mode=1 assignment before ->inject_pending_irq, and make sure that it won't reorder after it. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com> |
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.. | ||
i8254.c | ||
i8254.h | ||
i8259.c | ||
irq.c | ||
irq.h | ||
Kconfig | ||
kvm_svm.h | ||
lapic.c | ||
lapic.h | ||
Makefile | ||
mmu.c | ||
mmu.h | ||
paging_tmpl.h | ||
svm.c | ||
svm.h | ||
tss.h | ||
vmx.c | ||
vmx.h | ||
x86_emulate.c | ||
x86.c |