On 2021/4/15 10:49, Liuxiangdong wrote:
On 2021/4/15 9:38, Xu, Like wrote:
On 2021/4/14 22:49, Liuxiangdong wrote:
Hi Like,
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 comment
On 2021/4/15 9:38, Xu, Like wrote:
On 2021/4/14 22:49, Liuxiangdong wrote:
Hi Like,
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.kern
On 2021/4/14 22:49, Liuxiangdong wrote:
Hi Like,
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/
Hi Like,
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 ma
On 2021/4/12 23:25, Andi Kleen wrote:
The reason why soft lockup happens may be the unmapped EPT pages. So, do we
have a way to map all gpa
before we use pebs on Skylake?
Can you configure a VT-d device, that will implicitly pin all pages for the
IOMMU. I *think* that should be enough for tes
> The reason why soft lockup happens may be the unmapped EPT pages. So, do we
> have a way to map all gpa
> before we use pebs on Skylake?
Can you configure a VT-d device, that will implicitly pin all pages for the
IOMMU. I *think* that should be enough for testing.
-Andi
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 fewe
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 fewer PEBS samples
on Skylake without any
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 patche
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 hardwa
On Wed, Apr 07, 2021 at 11:05:20AM +0800, Liuxiangdong (Aven, Cloud
Infrastructure Service Product Dept.) wrote:
>
>
> 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 t
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
> 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 server has the support for recoveri
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 hardware facility supporting guest PEBS is only
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
The new hardware facility supporting guest PEBS is only available
on Intel Ice Lake Server platforms for now. KVM will check this field
through perf_get_x86_pmu_capability() instead of hard coding the cpu
models in the KVM code. If it is supported, the guest PBES capability
will be exposed to the g
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