linux-kernel - Re: [PATCH 1/2] x86/math-emu: Add support for FCMOVcc and F[U]COMI[P] insns

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Message-ID: <55F9C847.5070104@redhat.com>
Date:	Wed, 16 Sep 2015 21:51:35 +0200
From:	Denys Vlasenko <dvlasenk@...hat.com>
To:	Ingo Molnar <mingo@...nel.org>
CC:	Denys Vlasenko <dvlasenk@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...capital.net>,
	Kees Cook <keescook@...omium.org>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] x86/math-emu: Add support for FCMOVcc and F[U]COMI[P]
 insns

On 09/16/2015 09:48 PM, Denys Vlasenko wrote:
> Run-tested by booting with "no387 nofxsr" and running test programs:
> 
> # ./test_FCMOV
> [RUN]	Testing fcmovCC instructions
> [OK]	fcmovCC
> # ./test_FCOMI
> [RUN]	Testing f[u]comi[p] instructions
> [OK]	f[u]comi[p]

The sources for these test programs are in this email.

Ingo, let me know if you want a patch which adds them
to tools/testing/selftests/x86/*


View attachment "test_FCMOV.c" of type "text/x-csrc" (2101 bytes)

View attachment "test_FCOMI.c" of type "text/x-csrc" (7122 bytes)