From: Kees Cook <keescook@chromium.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: x86@kernel.org, Joan Bruguera <joanbrugueram@gmail.com>,
linux-kernel@vger.kernel.org, Juergen Gross <jgross@suse.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
xen-devel <xen-devel@lists.xenproject.org>,
Jan Beulich <jbeulich@suse.com>,
Roger Pau Monne <roger.pau@citrix.com>,
mark.rutland@arm.com
Subject: Re: [RFC][PATCH 2/6] x86/power: Inline write_cr[04]()
Date: Thu, 12 Jan 2023 13:51:16 -0800 [thread overview]
Message-ID: <202301121351.B0CE02B@keescook> (raw)
In-Reply-To: <20230112143825.644480983@infradead.org>
On Thu, Jan 12, 2023 at 03:31:43PM +0100, Peter Zijlstra wrote:
> Since we can't do CALL/RET until GS is restored and CR[04] pinning is
> of dubious value in this code path, simply write the stored values.
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
--
Kees Cook
next prev parent reply other threads:[~2023-01-12 21:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-12 14:31 [RFC][PATCH 0/6] x86: Fix suspend vs retbleed=stuff Peter Zijlstra
2023-01-12 14:31 ` [RFC][PATCH 1/6] x86/power: De-paravirt restore_processor_state() Peter Zijlstra
2023-01-13 8:14 ` Juergen Gross
2023-01-12 14:31 ` [RFC][PATCH 2/6] x86/power: Inline write_cr[04]() Peter Zijlstra
2023-01-12 21:51 ` Kees Cook [this message]
2023-01-13 13:16 ` Ingo Molnar
2023-01-13 17:17 ` Peter Zijlstra
2023-01-12 14:31 ` [RFC][PATCH 3/6] x86/callthunk: No callthunk for restore_processor_state() Peter Zijlstra
2023-01-12 14:31 ` [RFC][PATCH 4/6] x86/power: Sprinkle some noinstr Peter Zijlstra
2023-01-12 14:31 ` [RFC][PATCH 5/6] PM / hibernate: Add minimal noinstr annotations Peter Zijlstra
2023-01-12 14:31 ` [RFC][PATCH 6/6] x86/power: Seal restore_processor_state() Peter Zijlstra
2023-01-13 7:39 ` [RFC][PATCH 0/6] x86: Fix suspend vs retbleed=stuff Joan Bruguera
2023-01-13 9:17 ` Peter Zijlstra
2023-01-13 12:59 ` Peter Zijlstra
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