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RE: [PATCH 2/2] VMX/cpu-policy: disable RDTSCP and INVPCID insns as needed
- To: "Beulich, Jan" <JBeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
- Date: Fri, 26 May 2023 04:54:00 +0000
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- Cc: "andrew.cooper3@xxxxxxxxxx" <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Pau Monné, Roger <roger.pau@xxxxxxxxxx>, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>
- Delivery-date: Fri, 26 May 2023 04:54:12 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHZeD7g5l4KMzlp30WzRh+c548YVq9sK54g
- Thread-topic: [PATCH 2/2] VMX/cpu-policy: disable RDTSCP and INVPCID insns as needed
> From: Jan Beulich <jbeulich@xxxxxxxx>
> Sent: Wednesday, April 26, 2023 8:58 PM
>
> When either feature is available in hardware, but disabled for a guest,
> the respective insn would better cause #UD if attempted to be used.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
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