x86/vtx: add LBR_SELECT to the list of LBR MSRs
authorIgor Druzhinin <igor.druzhinin@citrix.com>
Mon, 26 Apr 2021 08:22:04 +0000 (10:22 +0200)
committerJan Beulich <jbeulich@suse.com>
Mon, 26 Apr 2021 08:22:04 +0000 (10:22 +0200)
commit08693c03e00ea3448adc4406c891e707f0068eb6
tree61085c0223c10b83b0a520ffd1ca7e989a77127c
parentfb23e8ba230481d2447672368550617e48cdb0aa
x86/vtx: add LBR_SELECT to the list of LBR MSRs

This MSR exists since Nehalem / Silvermont and is actively used by Linux,
for instance, to improve sampling efficiency.

Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
xen/arch/x86/hvm/vmx/vmx.c
xen/include/asm-x86/msr-index.h