Hi,
I have tried the patch, it works.
could you explain it for me? thanks very much.
Regards
dave
2007/5/22, H. Peter Anvin <[email protected]>:
Could you try the attached patch for me?
-hpa
diff --git a/arch/i386/boot/edd.c b/arch/i386/boot/edd.c
index 84a0302..9697a56 100644
--- a/arch/i386/boot/edd.c
+++ b/arch/i386/boot/edd.c
@@ -47,8 +47,9 @@ static int read_sector(u8 devno, u64 lba, void *buf)
si = (size_t)&dapa;
dx = devno;
asm("pushfl; stc; int $0x13; setc %%al; popfl"
- : "+a" (ax), "+S" (si), "+d" (devno)
- : : "ebx", "ecx", "edi");
+ : "+a" (ax), "+S" (si), "+d" (dx)
+ : "m" (dapa)
+ : "ebx", "ecx", "edi", "memory");
if (!(u8)ax)
return 0; /* OK */
@@ -59,7 +60,7 @@ static int read_sector(u8 devno, u64 lba, void *buf)
bx = (size_t)buf;
asm("pushfl; stc; int $0x13; setc %%al; popfl"
: "+a" (ax), "+c" (cx), "+d" (dx), "+b" (bx)
- : : "esi", "edi");
+ : : "esi", "edi", "memory");
return -(u8)ax; /* 0 or -1 */
}
-
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