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    Subject[PATCH 17/39] KVM: VMX: Change cs reset state to be a data segment
    Date
    From: Avi Kivity <avi@qumranet.com>

    Real mode cs is a data segment, not a code segment.

    Signed-off-by: Avi Kivity <avi@qumranet.com>
    ---
    arch/x86/kvm/vmx.c | 3 +--
    1 files changed, 1 insertions(+), 2 deletions(-)

    diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
    index 9840f37..6aa305a 100644
    --- a/arch/x86/kvm/vmx.c
    +++ b/arch/x86/kvm/vmx.c
    @@ -2239,6 +2239,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)

    fx_init(&vmx->vcpu);

    + seg_setup(VCPU_SREG_CS);
    /*
    * GUEST_CS_BASE should really be 0xffff0000, but VT vm86 mode
    * insists on having GUEST_CS_BASE == GUEST_CS_SELECTOR << 4. Sigh.
    @@ -2250,8 +2251,6 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
    vmcs_write16(GUEST_CS_SELECTOR, vmx->vcpu.arch.sipi_vector << 8);
    vmcs_writel(GUEST_CS_BASE, vmx->vcpu.arch.sipi_vector << 12);
    }
    - vmcs_write32(GUEST_CS_LIMIT, 0xffff);
    - vmcs_write32(GUEST_CS_AR_BYTES, 0x9b);

    seg_setup(VCPU_SREG_DS);
    seg_setup(VCPU_SREG_ES);
    --
    1.6.0.1


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