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authorJeremy Fitzhardinge <jeremy@goop.org>2008-07-01 16:46:35 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-08 13:16:28 +0200
commit8490638cf0fb3975f7636c5268f27d5daf4eaaa5 (patch)
tree1c00505506c86ce1f37410666c1d6b57336ddbc8 /arch
parent574977a2edde0148ea365008dceb0c2594d10b11 (diff)
x86: always set _PAGE_GLOBAL in _PAGE_KERNEL* flags
Consistently set _PAGE_GLOBAL in _PAGE_KERNEL flags. This makes 32- and 64-bit code consistent, and removes some special cases where __PAGE_KERNEL* did not have _PAGE_GLOBAL set, causing confusion as a result of the inconsistencies. This patch only affects x86-64, which generally always supports PGD. The x86-32 patch is next. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/head_64.S4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 4336f98456e..b07ac7b217c 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -374,7 +374,7 @@ NEXT_PAGE(level2_ident_pgt)
/* Since I easily can, map the first 1G.
* Don't set NX because code runs from these pages.
*/
- PMDS(0, __PAGE_KERNEL_LARGE_EXEC | _PAGE_GLOBAL, PTRS_PER_PMD)
+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, PTRS_PER_PMD)
NEXT_PAGE(level2_kernel_pgt)
/*
@@ -387,7 +387,7 @@ NEXT_PAGE(level2_kernel_pgt)
* If you want to increase this then increase MODULES_VADDR
* too.)
*/
- PMDS(0, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL,
+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
KERNEL_IMAGE_SIZE/PMD_SIZE)
NEXT_PAGE(level2_spare_pgt)