Patch "KVM: nVMX: Update vmcs12->guest_linear_address on nested VM-exit" has been added to the 4.9-stable tree

Patch "KVM: nVMX: Update vmcs12->guest_linear_address on nested VM-exit" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    KVM: nVMX: Update vmcs12->guest_linear_address on nested VM-exit

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     kvm-nvmx-update-vmcs12-guest_linear_address-on-nested-vm-exit.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Apr  9 17:09:24 CEST 2018
From: Jim Mattson <jmattson@google.com>
Date: Thu, 1 Jun 2017 12:44:46 -0700
Subject: KVM: nVMX: Update vmcs12->guest_linear_address on nested VM-exit

From: Jim Mattson <jmattson@google.com>


[ 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@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -10664,8 +10664,7 @@ static void prepare_vmcs12(struct kvm_vc
 		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);


Patches currently in stable-queue which might be from jmattson@google.com are

queue-4.9/kvm-nvmx-update-vmcs12-guest_linear_address-on-nested-vm-exit.patch