From: Borislav Petkov <bp@alien8.de>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: luto@kernel.org, linux-kernel@vger.kernel.org,
tglx@linutronix.de, thomas.lendacky@amd.com, hpa@zytor.com,
john.stultz@linaro.org, x86@kernel.org
Subject: Re: [RFC PATCH 4/4] x86/TSC: Use RDTSCP
Date: Wed, 12 Dec 2018 01:06:24 +0100 [thread overview]
Message-ID: <20181212000624.GY27375@zn.tnic> (raw)
In-Reply-To: <20181211234308.GW27375@zn.tnic>
On Wed, Dec 12, 2018 at 12:43:08AM +0100, Borislav Petkov wrote:
> > And other code in this file uses "c" for clobber.
>
> Ok.
Except that clobbers need to be full register names:
./arch/x86/include/asm/msr.h: In function ‘do_hres’:
./arch/x86/include/asm/msr.h:236:2: error: unknown register name ‘c’ in ‘asm’
asm volatile(ALTERNATIVE_3("rdtsc",
^~~
...
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2018-12-12 0:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 23:37 [RFC PATCH 4/4] x86/TSC: Use RDTSCP Alexey Dobriyan
2018-12-11 23:43 ` Borislav Petkov
2018-12-12 0:06 ` Borislav Petkov [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-12-11 22:23 [RFC PATCH 0/4] x86/alternative: Add ALTERNATIVE_3 Borislav Petkov
2018-12-11 22:23 ` [RFC PATCH 4/4] x86/TSC: Use RDTSCP Borislav Petkov
2018-12-11 22:59 ` Andy Lutomirski
2018-12-11 23:12 ` Lendacky, Thomas
2018-12-11 23:39 ` Borislav Petkov
2018-12-12 2:24 ` Andy Lutomirski
2018-12-12 9:59 ` Peter Zijlstra
2018-12-12 12:02 ` Andrea Parri
2018-12-12 10:08 ` Borislav Petkov
2018-12-12 18:07 ` Andy Lutomirski
2018-12-12 18:44 ` Borislav Petkov
2018-12-12 18:50 ` Andy Lutomirski
2018-12-12 20:00 ` Borislav Petkov
2018-12-12 20:09 ` Andy Lutomirski
2018-12-12 20:29 ` Borislav Petkov
2018-12-14 13:39 ` David Laight
2018-12-15 18:53 ` Andy Lutomirski
2018-12-12 14:15 ` Lendacky, Thomas
2018-12-12 14:18 ` Lendacky, Thomas
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