From bfdc0c280a497575670e87efa89e78a88438483b Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 13 Dec 2006 00:34:16 -0800 Subject: [PATCH] [PATCH] KVM: Fix vmx hardware_enable() on macbooks It seems macbooks set bit 2 but not bit 0, which is an "enabled but vmxon will fault" setting. Signed-off-by: Avi Kivity Tested-by: Alex Larsson (sometimes testing helps) Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index ea3bdbb0da..f0f0b1a781 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -534,7 +534,7 @@ static __init void hardware_enable(void *garbage) u64 old; rdmsrl(MSR_IA32_FEATURE_CONTROL, old); - if ((old & 5) == 0) + if ((old & 5) != 5) /* enable and lock */ wrmsrl(MSR_IA32_FEATURE_CONTROL, old | 5); write_cr4(read_cr4() | CR4_VMXE); /* FIXME: not cpu hotplug safe */ -- 2.39.5