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authorWanpeng Li <wanpeng.li@hotmail.com>2015-09-16 19:31:11 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-22 14:43:10 -0700
commit35f5af9cb6994ee92e27b2cd5936142337983284 (patch)
treed3042806e2a3f495a16f2d3f6898fcb45ab7817d /virt
parent10e259a1ec2e4b39e1a9d49d51dbd152a8e5f3c3 (diff)
downloadlinux-linaro-stable-35f5af9cb6994ee92e27b2cd5936142337983284.tar.gz
KVM: vmx: fix VPID is 0000H in non-root operation
commit 04bb92e4b4cf06a66889d37b892b78f926faa9d4 upstream. Reference SDM 28.1: The current VPID is 0000H in the following situations: - Outside VMX operation. (This includes operation in system-management mode under the default treatment of SMIs and SMM with VMX operation; see Section 34.14.) - In VMX root operation. - In VMX non-root operation when the “enable VPID” VM-execution control is 0. The VPID should never be 0000H in non-root operation when "enable VPID" VM-execution control is 1. However, commit 34a1cd60 ("kvm: x86: vmx: move some vmx setting from vmx_init() to hardware_setup()") remove the codes which reserve 0000H for VMX root operation. This patch fix it by again reserving 0000H for VMX root operation. Fixes: 34a1cd60d17f62c1f077c1478a6c2ca8c3d17af4 Reported-by: Wincy Van <fanwenyi0529@gmail.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions