Re: [PATCH] x86: pat cpu feature bit setting for known cpus

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To: Yinghai Lu <yhlu.kernel@...>

Cc: Ingo Molnar <mingo@...>, Venki Pallipadi <venkatesh.pallipadi@...>, Thomas Gleixner <tglx@...>, Andrew Morton <akpm@...>, kernel list <linux-kernel@...>, <suresh.b.siddha@...>

Subject: Re: [PATCH] x86: pat cpu feature bit setting for known cpus

Date: Tuesday, March 25, 2008 - 8:10 pm

Yinghai Lu wrote:
quoted text> On Tue, Mar 25, 2008 at 4:06 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>> Yinghai Lu wrote:
>>  >>
>>  >>  By the way, I want to clarify: I didn't mean it was *intended* as
>>  >>  vendor-lockin, just that it's an undesirable effect of this.
>>  >
>>  > if the PAT works, we may need to trim the memory according to MTRR, right?
>>  >
>>
>>  That doesn't seem like it's specific to PAT?
> 
> could page table to  set WRBACK the range that is not covered by MTRR in e820..
> 

We have to trim anyway... lest we end up using uncached memory and then 
we're in a world of hurt.

	-hpa
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Messages in current thread:

[PATCH] x86: pat cpu feature bit setting for known cpus, Yinghai Lu, (Tue Mar 25, 2:24 am)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, dean gaudet, (Sun Mar 30, 7:43 am)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Pavel Machek, (Fri Mar 28, 9:41 am)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Yinghai Lu, (Fri Mar 28, 10:51 am)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, H. Peter Anvin, (Tue Mar 25, 9:38 am)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Yinghai Lu, (Tue Mar 25, 2:03 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Venki Pallipadi, (Tue Mar 25, 3:08 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Ingo Molnar, (Tue Mar 25, 4:08 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, H. Peter Anvin, (Tue Mar 25, 4:38 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, H. Peter Anvin, (Tue Mar 25, 7:01 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Yinghai Lu, (Tue Mar 25, 7:05 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, H. Peter Anvin, (Tue Mar 25, 7:06 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Yinghai Lu, (Tue Mar 25, 7:08 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, H. Peter Anvin, (Tue Mar 25, 8:10 pm)

RE: [PATCH] x86: pat cpu feature bit setting for known cpus, Pallipadi, Venkatesh, (Tue Mar 25, 7:38 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Yinghai Lu, (Tue Mar 25, 8:01 pm)

Re: [PATCH] x86: pat cpu feature bit setting for known cpus, Ingo Molnar, (Tue Mar 25, 6:58 am)


linux-kernel:
Greg KH	[GIT PATCH] driver core patches against 2.6.24
Tarkan Erimer	Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3
James Bottomley	Re: Announce: Linux-next (Or Andrew's dream :-))
Michal Piotrowski	Re: 2.6.21-rc5-mm4
linux-netdev:
Jarek Poplawski	[PATCH] pkt_sched: Destroy gen estimators under rtnl_lock().
Gerrit Renker	[PATCH 27/37] dccp: Integration of dynamic feature activation - part 2 (server side)
Frans Pop	svc: failed to register lockdv1 RPC service (errno 97).
Lovich, Vitali	RE: [PATCH] Packet socket: mmapped IO: PACKET_TX_RING
git:

openbsd-misc:

Re: [PATCH] x86: pat cpu feature bit setting for known cpus

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