diff options
| author | Luwei Kang <luwei.kang@intel.com> | 2018-10-24 16:05:16 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-21 11:28:38 +0100 |
| commit | ee85dec2fe9c860c40f6e2e1d53052b80f36cd58 (patch) | |
| tree | 258f4fa0826c514cd48574ae5325455fd81695db /kernel/livepatch/patch.c | |
| parent | b08c28960f254bd246af8e30a468dfc7dd56e03b (diff) | |
KVM: x86: Disable Intel PT when VMXON in L1 guest
Currently, Intel Processor Trace do not support tracing in L1 guest
VMX operation(IA32_VMX_MISC[bit 14] is 0). As mentioned in SDM,
on these type of processors, execution of the VMXON instruction will
clears IA32_RTIT_CTL.TraceEn and any attempt to write IA32_RTIT_CTL
causes a general-protection exception (#GP).
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'kernel/livepatch/patch.c')
0 files changed, 0 insertions, 0 deletions