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Re: [PATCH] x86: drop old (32-bit-only) MSR definitions
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Mon, 17 Jul 2023 11:33:09 +0100
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- Cc: Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Simone Ballarin <simone.ballarin@xxxxxxxxxxx>, Gianluca Luparini <gianluca.luparini@xxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 17/07/2023 10:17 am, Jan Beulich wrote:
> /* Intel defined MSRs. */
> -#define MSR_IA32_P5_MC_ADDR 0x00000000
> -#define MSR_IA32_P5_MC_TYPE 0x00000001
These are architectural. They still exist in all Intel and AMD CPUs.
I'd suggest keeping them, because I think we're required to expose them
when advertising MCA.
Otherwise, LGTM.
~Andrew
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