summaryrefslogtreecommitdiffstats
path: root/arch/x86/mm/pageattr.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-15 15:15:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-15 15:20:41 -0800
commit11520e5e7c1855fc3bf202bb3be35a39d9efa034 (patch)
tree734ea170f825000dceef3f724dff474b46fce11d /arch/x86/mm/pageattr.c
parent5bd665f28db2b04a8d6fe277342479906fc60b62 (diff)
downloadop-kernel-dev-11520e5e7c1855fc3bf202bb3be35a39d9efa034.zip
op-kernel-dev-11520e5e7c1855fc3bf202bb3be35a39d9efa034.tar.gz
Revert "x86-64/efi: Use EFI to deal with platform wall clock (again)"
This reverts commit bd52276fa1d4 ("x86-64/efi: Use EFI to deal with platform wall clock (again)"), and the two supporting commits: da5a108d05b4: "x86/kernel: remove tboot 1:1 page table creation code" 185034e72d59: "x86, efi: 1:1 pagetable mapping for virtual EFI calls") as they all depend semantically on commit 53b87cf088e2 ("x86, mm: Include the entire kernel memory map in trampoline_pgd") that got reverted earlier due to the problems it caused. This was pointed out by Yinghai Lu, and verified by me on my Macbook Air that uses EFI. Pointed-out-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm/pageattr.c')
-rw-r--r--arch/x86/mm/pageattr.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 931930a..a718e0d 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -919,13 +919,11 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
/*
* On success we use clflush, when the CPU supports it to
- * avoid the wbindv. If the CPU does not support it, in the
- * error case, and during early boot (for EFI) we fall back
- * to cpa_flush_all (which uses wbinvd):
+ * avoid the wbindv. If the CPU does not support it and in the
+ * error case we fall back to cpa_flush_all (which uses
+ * wbindv):
*/
- if (early_boot_irqs_disabled)
- __cpa_flush_all((void *)(long)cache);
- else if (!ret && cpu_has_clflush) {
+ if (!ret && cpu_has_clflush) {
if (cpa.flags & (CPA_PAGES_ARRAY | CPA_ARRAY)) {
cpa_flush_array(addr, numpages, cache,
cpa.flags, pages);
OpenPOWER on IntegriCloud