lkml.org 
[lkml]   [2011]   [Jan]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[34-longterm 236/260] KVM: x86: Fix SVM VMCB reset
    Date
    From: Zachary Amsden <zamsden@redhat.com>

    commit 58877679fd393d3ef71aa383031ac7817561463d upstream.

    On reset, VMCB TSC should be set to zero. Instead, code was setting
    tsc_offset to zero, which passes through the underlying TSC.

    Signed-off-by: Zachary Amsden <zamsden@redhat.com>
    Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
    Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
    ---
    arch/x86/kvm/svm.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
    index 49dabc1..508e136 100644
    --- a/arch/x86/kvm/svm.c
    +++ b/arch/x86/kvm/svm.c
    @@ -632,7 +632,7 @@ static void init_vmcb(struct vcpu_svm *svm)

    control->iopm_base_pa = iopm_base;
    control->msrpm_base_pa = __pa(svm->msrpm);
    - control->tsc_offset = 0;
    + control->tsc_offset = 0-native_read_tsc();
    control->int_ctl = V_INTR_MASKING_MASK;

    init_seg(&save->es);
    --
    1.7.3.3


    \
     
     \ /
      Last update: 2011-01-02 08:37    [W:0.043 / U:0.748 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site