Re: [PATCH v4 01/16] perf/x86/intel: Add x86_pmu.pebs_vmx for Ice Lake Servers

2021-04-12 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
On 2021/4/9 16:46, Like Xu wrote: Hi Liuxiangdong, On 2021/4/9 16:33, Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.) wrote: Do you have any comments or ideas about it ? https://lore.kernel.org/kvm/606e5ef6.2060...@huawei.com/ My expectation is that there may be many

Re: [PATCH v4 01/16] perf/x86/intel: Add x86_pmu.pebs_vmx for Ice Lake Servers

2021-04-09 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
Do you have any comments or ideas about it ? https://lore.kernel.org/kvm/606e5ef6.2060...@huawei.com/ On 2021/4/6 13:14, Xu, Like wrote: Hi Xiangdong, On 2021/4/6 11:24, Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.) wrote: Hi,like. Some questions about this new pebs

Re: [PATCH v4 01/16] perf/x86/intel: Add x86_pmu.pebs_vmx for Ice Lake Servers

2021-04-07 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
On 2021/4/6 13:14, Xu, Like wrote: Hi Xiangdong, On 2021/4/6 11:24, Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.) wrote: Hi,like. Some questions about this new pebs patches set: https://lore.kernel.org/kvm/20210329054137.120994-2-like...@linux.intel.com/ The new

Re: [PATCH v4 01/16] perf/x86/intel: Add x86_pmu.pebs_vmx for Ice Lake Servers

2021-04-06 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
On 2021/4/6 20:47, Andi Kleen wrote: AFAIK, Icelake supports adaptive PEBS and extended PEBS which Skylake doesn't. But we can still use IA32_PEBS_ENABLE MSR to indicate general-purpose counter in Skylake. Is there anything else that only Icelake supports in this patches set? Only Icelake ser

Re: [PATCH v4 01/16] perf/x86/intel: Add x86_pmu.pebs_vmx for Ice Lake Servers

2021-04-05 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
Hi,like. Some questions about this new pebs patches set: https://lore.kernel.org/kvm/20210329054137.120994-2-like...@linux.intel.com/ The new hardware facility supporting guest PEBS is only available on Intel Ice Lake Server platforms for now. AFAIK, Icelake supports adaptive PEBS and extended

Re: [PATCH v3 00/17] KVM: x86/pmu: Add support to enable Guest PEBS via DS

2021-01-28 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
On 2021/1/26 15:08, Xu, Like wrote: On 2021/1/25 22:47, Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.) wrote: Thanks for replying, On 2021/1/25 10:41, Like Xu wrote: + k...@vger.kernel.org Hi Liuxiangdong, On 2021/1/22 18:02, Liuxiangdong (Aven, Cloud Infrastructure

Re: [PATCH v3 00/17] KVM: x86/pmu: Add support to enable Guest PEBS via DS

2021-01-25 Thread Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.)
Thanks for replying, On 2021/1/25 10:41, Like Xu wrote: + k...@vger.kernel.org Hi Liuxiangdong, On 2021/1/22 18:02, Liuxiangdong (Aven, Cloud Infrastructure Service Product Dept.) wrote: Hi Like, Some questions about https://lore.kernel.org/kvm/20210104131542.495413-1-like