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

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?