From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <jbeulich@suse.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Wei Liu" <wl@xen.org>, "Roger Pau Monné" <roger.pau@citrix.com>,
"Ian Jackson" <iwj@xenproject.org>,
"Anthony Perard" <anthony.perard@citrix.com>
Subject: Re: [PATCH] x86/CPUID: add further "fast repeated string ops" feature flags
Date: Fri, 16 Apr 2021 14:38:42 +0100 [thread overview]
Message-ID: <3124157e-a180-3c66-4bb6-6c451b8436de@citrix.com> (raw)
In-Reply-To: <c4e5fad5-0468-fe9f-aa6f-1a4efce72cc4@suse.com>
On 16/04/2021 14:22, Jan Beulich wrote:
> Like ERMS this can always be exposed to guests, but I guess once we
> introduce full validation we want to make sure we don't reject incoming
> policies with any of these set when in the raw/host policies they're
> clear.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Like *everything* right now, there's no safety checking and rejection of
bad incoming policy data. Xen will still zero out the bits it doesn't
like, and fixing this something which Roger and I are working on. Its
basically the last piece of the "move to a new, better interface"
toolstack work.
~Andrew
prev parent reply other threads:[~2021-04-16 13:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-16 13:22 [PATCH] x86/CPUID: add further "fast repeated string ops" feature flags Jan Beulich
2021-04-16 13:38 ` Andrew Cooper [this message]
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