Wanpeng Li 540c7abe61 KVM: vPMU: Fill get_msr MSR_CORE_PERF_GLOBAL_OVF_CTRL w/ 0 ... SDM section 18.2.3 mentioned that: "IA32_PERF_GLOBAL_OVF_CTL MSR allows software to clear overflow indicator(s) of any general-purpose or fixed-function counters via a single WRMSR." It is R/W mentioned by SDM, we read this msr on bare-metal during perf testing, the value is always 0 for ICX/SKX boxes on hands. Let's fill get_msr MSR_CORE_PERF_GLOBAL_OVF_CTRL w/ 0 as hardware behavior and drop global_ovf_ctrl variable. Tested-by: Like Xu <likexu@tencent.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1634631160-67276-2-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-10-22 05:19:28 -04:00
..
asm	KVM: vPMU: Fill get_msr MSR_CORE_PERF_GLOBAL_OVF_CTRL w/ 0	2021-10-22 05:19:28 -04:00
uapi/asm	KVM: x86: Expose TSC offset controls to userspace	2021-10-18 14:43:45 -04:00