Re: [PATCH] Fix left over EFI cache mapping problems

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From: Andi Kleen <andi@...>

To: Huang, Ying <ying.huang@...>

Cc: Ingo Molnar <mingo@...>, Andi Kleen <andi@...>, <torvalds@...>, <tglx@...>, <linux-kernel@...>

Subject: Re: [PATCH] Fix left over EFI cache mapping problems

Date: Monday, February 18, 2008 - 7:26 am

> After looking up in UEFI specification, I found that it is specified by

Thanks.

quoted text> UEFI specification 2.1 (section 6.2, page 124) that the NumberOfPages
> (num_pages) of EFI_MEMORY_DESCRIPTOR (efi_memory_desc_t) must be "Number
> of 4KB pages in the memory region". So we need not worry about potential
> EFI_PAGE_SHIFT changes.

Then it would be cleaner to just use PAGE_SIZE in the x86 specific EFI
code imho.

-Andi
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Messages in current thread:

[PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Thu Feb 14, 9:13 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Ingo Molnar, (Thu Feb 14, 12:12 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Fri Feb 15, 12:48 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Fri Feb 15, 4:48 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Fri Feb 15, 5:21 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Fri Feb 15, 5:43 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Ingo Molnar, (Fri Feb 15, 3:08 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Sun Feb 17, 9:53 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Mon Feb 18, 7:26 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Ingo Molnar, (Mon Feb 18, 10:05 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Fri Feb 15, 3:32 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Linus Torvalds, (Fri Feb 15, 1:44 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Ingo Molnar, (Fri Feb 15, 3:30 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Fri Feb 15, 2:24 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Thu Feb 14, 1:16 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Ingo Molnar, (Thu Feb 14, 2:38 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Thu Feb 14, 10:52 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Fri Feb 15, 4:55 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Huang, Ying, (Fri Feb 15, 5:16 am)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Thu Feb 14, 5:42 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Arjan van de Ven, (Thu Feb 14, 6:08 pm)

Re: [PATCH] Fix left over EFI cache mapping problems, Andi Kleen, (Thu Feb 14, 7:01 pm)

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