Re: [RFC PATCH v2 09/11] KVM: VMX: Advertise MITI_CTRL_BHB_CLEAR_SEQ_S_SUPPORT

[Liu, Jingqi]

On 4/14/2023 2:25 PM, Chao Gao wrote:
> From: Zhang Chen <chen.zhang@xxxxxxxxx>
>
> Allow guest to query if the underying VMM understands BHB-clearing
> sequence and report the statue of BHB-clearing sequence in suprevisor
s/statue/status
> mode i.e. CPL < 3 via MSR_VIRTUAL_MITIGATION_ENUM/CTRL.
>
> Enable BHI_DIS_S for guest if guest is using BHI-clearing sequence and
> the sequence isn't effective on the processor.
>
> Signed-off-by: Zhang Chen <chen.zhang@xxxxxxxxx>
> Signed-off-by: Chao Gao <chao.gao@xxxxxxxxx>
> Tested-by: Jiaan Lu <jiaan.lu@xxxxxxxxx>
> ---
Thanks,
Jingqi