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>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index a267108..248287c 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -5401,7 +5401,7 @@
}
/* 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?