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KVM: vmx: DR7 masking on task switch emulation is wrong

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The DR7 masking which is done on task switch emulation should be in hex format
(clearing the local breakpoints enable bits 0,2,4 and 6).

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Nadav Amit 2014-05-19 09:50:50 +03:00 committed by Paolo Bonzini
parent 65a7f03f6b
commit 1f85411255
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/vmx.c
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@ -5401,7 +5401,7 @@ static int handle_task_switch(struct kvm_vcpu *vcpu)
}
/* clear all local breakpoint enable flags */
vmcs_writel(GUEST_DR7, vmcs_readl(GUEST_DR7) & ~55);
vmcs_writel(GUEST_DR7, vmcs_readl(GUEST_DR7) & ~0x55);
/*
* TODO: What about debug traps on tss switch?