kvm/x86: Update SynIC timers on guest entry only

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Consolidate updating the Hyper-V SynIC timers in a
single place: on guest entry in processing KVM_REQ_HV_STIMER
request.  This simplifies the overall logic, and makes sure
the most current state of msrs and guest clock is used for
arming the timers (to achieve that, KVM_REQ_HV_STIMER
has to be processed after KVM_REQ_CLOCK_UPDATE).

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: qemu-devel@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

This commit is contained in:

Andrey Smetanin 2015-12-28 18:27:24 +03:00 • committed by Paolo Bonzini

parent 7be58a6488

commit f3b138c5d8

2 changed files with 25 additions and 19 deletions

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38

arch/x86/kvm/hyperv.c

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6

arch/x86/kvm/x86.c

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