diff options
| -rw-r--r-- | src/arch/i386/interface/pxe/pxe_call.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/arch/i386/interface/pxe/pxe_call.c b/src/arch/i386/interface/pxe/pxe_call.c index 7fce75a93..a07433368 100644 --- a/src/arch/i386/interface/pxe/pxe_call.c +++ b/src/arch/i386/interface/pxe/pxe_call.c @@ -271,12 +271,14 @@ int pxe_start_nbp ( void ) { DBG ( "Restarting NBP (%x)\n", jmp ); /* Far call to PXE NBP */ - __asm__ __volatile__ ( REAL_CODE ( "movw %%cx, %%es\n\t" + __asm__ __volatile__ ( REAL_CODE ( "pushl %%ebp\n\t" /* gcc bug */ + "movw %%cx, %%es\n\t" "pushw %%es\n\t" "pushw %%di\n\t" "sti\n\t" "lcall $0, $0x7c00\n\t" - "addw $4, %%sp\n\t" ) + "popl %%ebp\n\t" /* discard */ + "popl %%ebp\n\t" /* gcc bug */ ) : "=a" ( status ), "=b" ( discard_b ), "=c" ( discard_c ), "=d" ( discard_d ), "=D" ( discard_D ) @@ -284,7 +286,7 @@ int pxe_start_nbp ( void ) { "c" ( rm_cs ), "d" ( virt_to_phys ( &pxenv ) ), "D" ( __from_text16 ( &ppxe ) ) - : "esi", "ebp", "memory" ); + : "esi", "memory" ); if ( status ) return -EPXENBP ( status ); |