Patch "KVM: nVMX: set IDTR and GDTR limits when loading L1 host state" has been added to the 3.18-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
KVM: nVMX: set IDTR and GDTR limits when loading L1 host state
to the 3.18-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-set-idtr-and-gdtr-limits-when-loading-l1-host-state.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
21f2d551183847bc7fbe8d866151d00cdad18752Mon Sep 17 00:00:00 2001
From: Ladi Prosek <[email protected]>
Date: Wed, 11 Oct 2017 16:54:42 +0200
Subject: KVM: nVMX: set IDTR and GDTR limits when loading L1 host state
From: Ladi Prosek <[email protected]>
commit 21f2d551183847bc7fbe8d866151d00cdad18752 upstream.
Intel SDM 27.5.2 Loading Host Segment and Descriptor-Table Registers:
"The GDTR and IDTR limits are each set to FFFFH."
--- arch/x86/kvm/vmx.c | 2 ++ 1 file changed, 2 insertions(+)
arch/x86/kvm/vmx.c +2 -0
@@ -8929,6 +8929,8 @@ static void load_vmcs12_host_state(strucvmcs_writel (GUEST_SYSENTER_EIP , vmcs12->host_ia32_sysenter_eip);vmcs_writel (GUEST_IDTR_BASE , vmcs12->host_idtr_base);vmcs_writel (GUEST_GDTR_BASE , vmcs12->host_gdtr_base); +vmcs_write32 (GUEST_IDTR_LIMIT ,0xFFFF ); +vmcs_write32 (GUEST_GDTR_LIMIT ,0xFFFF );/* If not VM_EXIT_CLEAR_BNDCFGS, the L2 value propagates to L1. */ if (vmcs12->vm_exit_controls &VM_EXIT_CLEAR_BNDCFGS )
Patches currently in stable-queue which might be from [email protected] are
queue-3.18/kvm-nvmx-set-idtr-and-gdtr-limits-when-loading-l1-host-state.patch