From: Huang, Ying <ying.huang@intel.com>
Date: Wed, 30 Jan 2008 12:33:55 +0000 (+0100)
Subject: x86: fix some bugs about EFI runtime code mapping
X-Git-Tag: v2.6.25-rc1~1143^2~107
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2172e2586f6662af996e47f417bb718c37cf8d2;p=pandora-kernel.git

x86: fix some bugs about EFI runtime code mapping

This patch fixes some bugs of making EFI runtime code executable.

- Use change_page_attr in i386 too. Because the runtime code may be
  mapped not through ioremap.

- If there is no _PAGE_NX in __supported_pte_mask, the change_page_attr
  is not called.

- Make efi_ioremap map pages as PAGE_KERNEL_EXEC_NOCACHE, because EFI runtime
  code may be mapped through efi_ioremap.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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