diff options
| -rw-r--r-- | arch/x86/boot/memory.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c index a99dbbe77a0..fcdb10add9c 100644 --- a/arch/x86/boot/memory.c +++ b/arch/x86/boot/memory.c @@ -20,7 +20,7 @@ static int detect_memory_e820(void) { int count = 0; u32 next = 0; - u32 size, id; + u32 size, id, edi; u8 err; struct e820entry *desc = boot_params.e820_map; @@ -29,10 +29,11 @@ static int detect_memory_e820(void) /* Important: %edx and %esi are clobbered by some BIOSes, so they must be either used for the error output - or explicitly marked clobbered. */ - asm("int $0x15; setc %0" + or explicitly marked clobbered. Given that, assume there + is something out there clobbering %ebp and %edi, too. */ + asm("pushl %%ebp; int $0x15; popl %%ebp; setc %0" : "=d" (err), "+b" (next), "=a" (id), "+c" (size), - "=m" (*desc) + "=D" (edi), "=m" (*desc) : "D" (desc), "d" (SMAP), "a" (0xe820) : "esi"); |