From: Andi Kleen <andi@firstfloor.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>,
Andi Kleen <andi@firstfloor.org>,
tglx@linutronix.de, mingo@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: make clflush a required feature on x86_64
Date: Fri, 18 Jan 2008 07:54:28 +0100 [thread overview]
Message-ID: <20080118065428.GA12594@one.firstfloor.org> (raw)
In-Reply-To: <479046BA.7090903@zytor.com>
> Simulators can be fixed,
They could, but why? I don't know of a good reason to require CLFLUSH.
> I just verified that Bochs 2.3.0 lacks this CPUID bit whereas the
> current version, 2.3.6, enables CLFLUSH iff SSE2 is enabled. Qemu 0.9.0
> has CLFLUSH. Andi, do you happen to know of any specific simulators
> which are problematic? I would assume any recent version of SimNow is
> up to date.
I don't know of any specific ones that lack CLFLUSH, although Bochs
definitely had similar problems in the past.
-Andi
next prev parent reply other threads:[~2008-01-18 6:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-18 4:59 [PATCH] x86: make clflush a required feature on x86_64 Kyle McMartin
2008-01-18 5:04 ` H. Peter Anvin
2008-01-18 5:25 ` [PATCH] x86_64: remove redundant cpu_has_ definitions Kyle McMartin
2008-01-18 8:07 ` Ingo Molnar
2008-01-18 5:53 ` [PATCH] x86: make clflush a required feature on x86_64 Andi Kleen
2008-01-18 6:01 ` Kyle McMartin
2008-01-18 6:27 ` H. Peter Anvin
2008-01-11 18:16 ` Pavel Machek
2008-01-18 6:54 ` Andi Kleen [this message]
2008-01-18 13:56 ` H. Peter Anvin
2008-01-18 14:18 ` Andi Kleen
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