From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Xen-devel <xen-devel@lists.xenproject.org>,
Jan Beulich <JBeulich@suse.com>
Subject: Re: [PATCH] x86/cpuid: Don't expose {IPRED,RRSBA,BHI}_CTRL to PV guests
Date: Tue, 9 Apr 2024 16:25:50 +0200 [thread overview]
Message-ID: <ZhVP7iTFg9-HB_tv@macbook> (raw)
In-Reply-To: <20240409141105.125969-1-andrew.cooper3@citrix.com>
On Tue, Apr 09, 2024 at 03:11:05PM +0100, Andrew Cooper wrote:
> All of these are prediction-mode (i.e. CPL) based. They don't operate as
> expected in PV context, and need emulating to have the intended behaviour.
>
> Fixes: 4dd676070684 ("x86/spec-ctrl: Expose IPRED_CTRL to guests")
> Fixes: 478e4787fa64 ("x86/spec-ctrl: Expose RRSBA_CTRL to guests")
> Fixes: 583f1d095052 ("x86/spec-ctrl: Expose BHI_CTRL to guests")
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Thanks, Roger.
prev parent reply other threads:[~2024-04-09 14:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-09 14:11 [PATCH] x86/cpuid: Don't expose {IPRED,RRSBA,BHI}_CTRL to PV guests Andrew Cooper
2024-04-09 14:25 ` Roger Pau Monné [this message]
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