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| author | Michael Brown | 2009-03-31 07:26:51 +0200 |
|---|---|---|
| committer | Michael Brown | 2009-03-31 07:26:51 +0200 |
| commit | b0c818d7b57202ee937e6de2efb8cedcc70b5e96 (patch) | |
| tree | d5b663047ab68f9b8d607aa5dd2dd35ae4cca352 /src/arch | |
| parent | [segment] Add "Requested memory not available" error message (diff) | |
| download | ipxe-b0c818d7b57202ee937e6de2efb8cedcc70b5e96.tar.gz ipxe-b0c818d7b57202ee937e6de2efb8cedcc70b5e96.tar.xz ipxe-b0c818d7b57202ee937e6de2efb8cedcc70b5e96.zip | |
[int13] Improve debugging messages
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/i386/interface/pcbios/int13.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/arch/i386/interface/pcbios/int13.c b/src/arch/i386/interface/pcbios/int13.c index 2e9de5cb..04f9cdf5 100644 --- a/src/arch/i386/interface/pcbios/int13.c +++ b/src/arch/i386/interface/pcbios/int13.c @@ -98,6 +98,7 @@ static int int13_rw_sectors ( struct int13_drive *drive, unsigned long lba; unsigned int count; userptr_t buffer; + int rc; /* Validate blocksize */ if ( blockdev->blksize != INT13_BLKSIZE ) { @@ -122,8 +123,10 @@ static int int13_rw_sectors ( struct int13_drive *drive, head, sector, lba, ix86->segs.es, ix86->regs.bx, count ); /* Read from / write to block device */ - if ( io ( blockdev, lba, count, buffer ) != 0 ) + if ( ( rc = io ( blockdev, lba, count, buffer ) ) != 0 ) { + DBG ( "INT 13 failed: %s\n", strerror ( rc ) ); return -INT13_STATUS_READ_ERROR; + } return 0; } @@ -248,6 +251,7 @@ static int int13_extended_rw ( struct int13_drive *drive, uint64_t lba; unsigned long count; userptr_t buffer; + int rc; /* Read parameters from disk address structure */ copy_from_real ( &addr, ix86->segs.ds, ix86->regs.si, sizeof ( addr )); @@ -259,8 +263,10 @@ static int int13_extended_rw ( struct int13_drive *drive, addr.buffer.segment, addr.buffer.offset, count ); /* Read from / write to block device */ - if ( io ( blockdev, lba, count, buffer ) != 0 ) + if ( ( rc = io ( blockdev, lba, count, buffer ) ) != 0 ) { + DBG ( "INT 13 failed: %s\n", strerror ( rc ) ); return -INT13_STATUS_READ_ERROR; + } return 0; } @@ -387,7 +393,7 @@ static __asmcall void int13 ( struct i386_all_regs *ix86 ) { /* Negative status indicates an error */ if ( status < 0 ) { status = -status; - DBG ( "INT13 failed with status %x\n", status ); + DBG ( "INT 13 returning failure status %x\n", status ); } else { ix86->flags &= ~CF; } @@ -652,7 +658,8 @@ int int13_boot ( unsigned int drive ) { /* Jump to boot sector */ if ( ( rc = call_bootsector ( 0x0, 0x7c00, drive ) ) != 0 ) { - DBG ( "INT 13 drive %02x boot returned\n", drive ); + DBG ( "INT 13 drive %02x boot returned: %s\n", + drive, strerror ( rc ) ); return rc; } |