From: Andi Kleen <ak@suse.de>
To: virtualization@lists.osdl.org
Cc: Zachary Amsden <zach@vmware.com>,
Linus Torvalds <torvalds@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Xen-devel <xen-devel@lists.xensource.com>,
Andrew Morton <akpm@osdl.org>, Dan Hecht <dhecht@vmware.com>,
Dan Arai <arai@vmware.com>, Anne Holler <anne@vmware.com>,
Pratap Subrahmanyam <pratap@vmware.com>,
Christopher Li <chrisl@vmware.com>,
Joshua LeVasseur <jtl@ira.uka.de>, Chris Wright <chrisw@osdl.org>,
Rik Van Riel <riel@redhat.com>, Jyothy Reddy <jreddy@vmware.com>,
Jack Lo <jlo@vmware.com>, Kip Macy <kmacy@fsmware.com>,
Jan Beulich <jbeulich@novell.com>,
Ky Srinivasan <ksrinivasan@novell.com>,
Wim Coekaerts <wim.coekaerts@oracle.com>,
Leendert van Doorn <leendert@watson.ibm.com>
Subject: Re: [RFC, PATCH 17/24] i386 Vmi msr patch
Date: Wed, 22 Mar 2006 21:21:32 +0100 [thread overview]
Message-ID: <200603222121.34117.ak@suse.de> (raw)
In-Reply-To: <200603131812.k2DICGJE005747@zach-dev.vmware.com>
> -#define rdtsc(low,high) \
> - __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
> -
> -#define rdtscl(low) \
> - __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx")
> -
> -#define rdtscll(val) \
> - __asm__ __volatile__("rdtsc" : "=A" (val))
> -
> -#define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
> -
> -#define rdpmc(counter,low,high) \
> - __asm__ __volatile__("rdpmc" \
> - : "=a" (low), "=d" (high) \
> - : "c" (counter))
The kernel doesn't use rdpmc. And moving rdtsc is useless
as I wrote earlier.
But mostly it is used from user space and you will break everything there.
-Andi
prev parent reply other threads:[~2006-03-22 20:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-13 18:12 [RFC, PATCH 17/24] i386 Vmi msr patch Zachary Amsden
2006-03-13 18:12 ` Zachary Amsden
2006-03-14 16:23 ` Andi Kleen
2006-03-14 16:32 ` Zachary Amsden
2006-03-14 17:43 ` Andi Kleen
2006-03-14 18:03 ` Zachary Amsden
2006-03-22 20:21 ` Andi Kleen [this message]
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