Commit 317b0a6d authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Paolo Bonzini
Browse files

kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation 



Ensure proper env->tsc value for kvmclock_current_nsec calculation.

Reported-by: default avatarMarcin Gibuła <m.gibula@beyond.pl>
Analyzed-by: default avatarMarcin Gibuła <m.gibula@beyond.pl>
Cc: qemu-stable@nongnu.org
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent de9d61e8

hw/i386/kvm/clock.c

+4 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include "qemu-common.h"

#include "sysemu/sysemu.h"

#include "sysemu/kvm.h"

#include "sysemu/cpus.h"

#include "hw/sysbus.h"

#include "hw/kvm/clock.h"
@@ -75,6 +76,9 @@ static void kvmclock_vm_state_change(void *opaque, int running, 
        if (s->clock_valid) {

            return;

        }



        cpu_synchronize_all_states();

        cpu_clean_all_dirty();

        ret = kvm_vm_ioctl(kvm_state, KVM_GET_CLOCK, &data);

        if (ret < 0) {

            fprintf(stderr, "KVM_GET_CLOCK failed: %s\n", strerror(ret));