[PATCH AUTOSEL for 4.9 004/293] KVM: nVMX: Update vmcs12->guest_linear_address on nested VM-exit

From: Sasha Levin
Date: Sun Apr 08 2018 - 22:48:21 EST


From: Jim Mattson <jmattson@xxxxxxxxxx>

[ Upstream commit d281e13b0bfe745a21061a194e386a949784393f ]

The guest-linear address field is set for VM exits due to attempts to
execute LMSW with a memory operand and VM exits due to attempts to
execute INS or OUTS for which the relevant segment is usable,
regardless of whether or not EPT is in use.

Fixes: 119a9c01a5922 ("KVM: nVMX: pass valid guest linear-address to the L1")
Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx>
Signed-off-by: Radim KrÄmÃÅ <rkrcmar@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
arch/x86/kvm/vmx.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7ed422e2641b..c1837d07a8b4 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -10661,8 +10661,7 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
vmcs12->guest_pdptr3 = vmcs_read64(GUEST_PDPTR3);
}

- if (nested_cpu_has_ept(vmcs12))
- vmcs12->guest_linear_address = vmcs_readl(GUEST_LINEAR_ADDRESS);
+ vmcs12->guest_linear_address = vmcs_readl(GUEST_LINEAR_ADDRESS);

if (nested_cpu_has_vid(vmcs12))
vmcs12->guest_intr_status = vmcs_read16(GUEST_INTR_STATUS);
--
2.15.1