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From: "H. Peter Anvin" <hpa@zytor.com>
To: caglar@pardus.org.tr
Cc: Avi Kivity <avi@qumranet.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, kvm-devel@lists.sourceforge.net,
	Andi Kleen <andi@firstfloor.org>
Subject: Re: [GIT PULL][RESEND #2] KVM Updates for 2.6.23-rc1
Date: Tue, 17 Jul 2007 12:05:59 -0700	[thread overview]
Message-ID: <469D1317.1050202@zytor.com> (raw)
In-Reply-To: <200707172139.09131.caglar@pardus.org.tr>

S.Çağlar Onur wrote:
> 
> If i'm not wrong X86_CMPXCHG64 depends on CONFIG_X86_PAE which depends on 
> HIGHMEM64 and again if i'm not wrong this means distributions who wants to 
> provide KVM must enable CONFIG_X86_PAE and CONFIG_HIGHMEM64G from now on?
> 

X86_PAE should depend on X86_CMPXCHG64, not the other way around.

I asked Andi Kleen about this on IRC, and he said:

<freitag> the reason was that i didn't want to hack everybody's magic
MSRs into the old verify_cpu.S

verify_cpu.S is dead on i386 (replaced by arch/i386/boot/cpucheck.c)
which does have the flags enable MSR tweaks; it is still being used for
APs on x86-64.  However, in the meantime it should be safe to remove
this dependency from i386.

	-hpa


WARNING: multiple messages have this Message-ID (diff)
From: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
To: caglar-caicS1wCkhO6A22drWdTBw@public.gmane.org
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	Andi Kleen <andi-Vw/NltI1exuRpAAqCnN02g@public.gmane.org>,
	Linus Torvalds
	<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [GIT PULL][RESEND #2] KVM Updates for 2.6.23-rc1
Date: Tue, 17 Jul 2007 12:05:59 -0700	[thread overview]
Message-ID: <469D1317.1050202@zytor.com> (raw)
In-Reply-To: <200707172139.09131.caglar-caicS1wCkhO6A22drWdTBw@public.gmane.org>

S.Çağlar Onur wrote:
> 
> If i'm not wrong X86_CMPXCHG64 depends on CONFIG_X86_PAE which depends on 
> HIGHMEM64 and again if i'm not wrong this means distributions who wants to 
> provide KVM must enable CONFIG_X86_PAE and CONFIG_HIGHMEM64G from now on?
> 

X86_PAE should depend on X86_CMPXCHG64, not the other way around.

I asked Andi Kleen about this on IRC, and he said:

<freitag> the reason was that i didn't want to hack everybody's magic
MSRs into the old verify_cpu.S

verify_cpu.S is dead on i386 (replaced by arch/i386/boot/cpucheck.c)
which does have the flags enable MSR tweaks; it is still being used for
APs on x86-64.  However, in the meantime it should be safe to remove
this dependency from i386.

	-hpa


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  reply	other threads:[~2007-07-17 19:07 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-17 16:51 [GIT PULL][RESEND #2] KVM Updates for 2.6.23-rc1 Avi Kivity
2007-07-17 16:51 ` Avi Kivity
2007-07-17 18:39 ` S.Çağlar Onur
2007-07-17 19:05   ` H. Peter Anvin [this message]
2007-07-17 19:05     ` H. Peter Anvin
2007-07-17 19:15     ` Linus Torvalds
2007-07-17 19:15       ` Linus Torvalds
2007-07-17 19:26       ` H. Peter Anvin
2007-07-17 19:26         ` H. Peter Anvin
2007-07-17 23:25 ` S.Çağlar Onur
2007-07-17 23:25   ` S.Çağlar Onur
2007-07-17 23:38   ` [kvm-devel] " Anthony Liguori
2007-07-17 23:38     ` Anthony Liguori
2007-07-17 23:40     ` [kvm-devel] " S.Çağlar Onur
2007-07-18  9:31     ` S.Çağlar Onur
2007-07-18  9:31       ` S.Çağlar Onur
2007-07-18  9:35       ` [kvm-devel] " Avi Kivity
2007-07-18  9:35         ` Avi Kivity
2007-07-18 10:09         ` [kvm-devel] " S.Çağlar Onur
2007-07-18 10:09           ` S.Çağlar Onur
2007-07-18 10:17           ` [kvm-devel] " S.Çağlar Onur
2007-07-18 10:17             ` S.Çağlar Onur
2007-07-18 10:31           ` [kvm-devel] " Avi Kivity
2007-07-18 10:50             ` S.Çağlar Onur
2007-07-18 10:50               ` S.Çağlar Onur
2007-07-20  5:31               ` [kvm-devel] " Avi Kivity
2007-07-20  5:31                 ` Avi Kivity
2007-07-20 11:37                 ` [kvm-devel] " S.Çağlar Onur
2007-07-20 11:37                   ` S.Çağlar Onur
2007-07-18 17:46             ` [kvm-devel] " S.Çağlar Onur
2007-07-18 17:46               ` S.Çağlar Onur
2007-07-18 18:04               ` [kvm-devel] " Avi Kivity
2007-07-18 18:04                 ` Avi Kivity

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