| From stable-bounces@linux.kernel.org Sun Dec 2 03:19:26 2007 |
| From: Avi Kivity <avi@qumranet.com> |
| Date: Sun, 2 Dec 2007 13:18:46 +0200 |
| Subject: KVM: VMX: Force vm86 mode if setting flags during real mode |
| To: stable@kernel.org |
| Cc: kvm-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Avi Kivity <avi@qumranet.com> |
| Message-ID: <11965943271441-git-send-email-avi@qumranet.com> |
| |
| From: Avi Kivity <avi@qumranet.com> |
| |
| patch 78f7826868da8e27d097802139a3fec39f47f3b8 in mainline. |
| |
| When resetting from userspace, we need to handle the flags being cleared |
| even after we are in real mode. |
| |
| Signed-off-by: Avi Kivity <avi@qumranet.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| drivers/kvm/vmx.c | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| --- a/drivers/kvm/vmx.c |
| +++ b/drivers/kvm/vmx.c |
| @@ -463,6 +463,8 @@ static unsigned long vmx_get_rflags(stru |
| |
| static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags) |
| { |
| + if (vcpu->rmode.active) |
| + rflags |= IOPL_MASK | X86_EFLAGS_VM; |
| vmcs_writel(GUEST_RFLAGS, rflags); |
| } |
| |
