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Commit 75880a01 authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: VMX: Reinitialize the real-mode tss when entering real mode 



Protected mode code may have corrupted the real-mode tss, so re-initialize
it when switching to real mode.

Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent a3c870bd

drivers/kvm/vmx.c

+4 −0
Original line number Diff line number Diff line
@@ -31,6 +31,8 @@ 
MODULE_AUTHOR("Qumranet");

MODULE_LICENSE("GPL");



static int init_rmode_tss(struct kvm *kvm);



static DEFINE_PER_CPU(struct vmcs *, vmxarea);

static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
@@ -951,6 +953,8 @@ static void enter_rmode(struct kvm_vcpu *vcpu) 
	fix_rmode_seg(VCPU_SREG_DS, &vcpu->rmode.ds);

	fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs);

	fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs);



	init_rmode_tss(vcpu->kvm);

}



#ifdef CONFIG_X86_64