3.5.7.30 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Dave Young <dyo...@redhat.com>
commit a7f84f03f660d93574ac88835d056c0d6468aebe upstream.
Current code check boot service region with kernel text region by:
start+size >= __pa_symbol(_text)
The end of the above region should be start + size - 1 instead.
I see this problem in ovmf + Fedora 19 grub boot:
text start: 1000000 md start: 800000 md size: 800000
Signed-off-by: Dave Young <dyo...@redhat.com>
Acked-by: Borislav Petkov <b...@suse.de>
Acked-by: Toshi Kani <toshi.k...@hp.com>
Tested-by: Toshi Kani <toshi.k...@hp.com>
Signed-off-by: Matt Fleming <matt.flem...@intel.com>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
arch/x86/platform/efi/efi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 46e5387..884a437 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -432,7 +432,7 @@ void __init efi_reserve_boot_services(void)
* - Not within any part of the kernel
* - Not the bios reserved area
*/
- if ((start+size >= virt_to_phys(_text)
+ if ((start + size > virt_to_phys(_text)
&& start <= virt_to_phys(_end)) ||
!e820_all_mapped(start, start+size, E820_RAM) ||
memblock_is_region_reserved(start, size)) {
--
1.8.3.2
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