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73c1d981f0
commit 7cae2bedcbd4680b155999655e49c27b9cf020fa upstream. As reported at https://bugs.launchpad.net/qemu/+bug/1494350, it is possible to have vcpu->arch.st.last_steal initialized from a thread other than vcpu thread, say the iothread, via KVM_SET_MSRS. Which can cause an overflow later (when subtracting from vcpu threads sched_info.run_delay). To avoid that, move steal time accumulation to vcpu entry time, before copying steal time data to guest. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Reviewed-by: David Matlack <dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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.. | ||
cpuid.c | ||
cpuid.h | ||
emulate.c | ||
i8254.c | ||
i8254.h | ||
i8259.c | ||
irq.c | ||
irq.h | ||
Kconfig | ||
kvm_cache_regs.h | ||
lapic.c | ||
lapic.h | ||
Makefile | ||
mmu.c | ||
mmu.h | ||
mmu_audit.c | ||
mmutrace.h | ||
paging_tmpl.h | ||
pmu.c | ||
svm.c | ||
trace.h | ||
tss.h | ||
vmx.c | ||
x86.c | ||
x86.h |