[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] x86, hvm, rombios: INT13 LBA48 support for disks bigger than 128GB.
# HG changeset patch # User Keir Fraser <keir.fraser@xxxxxxxxxx> # Date 1198760440 0 # Node ID 7fbc521b07a918512a62dee712e3c2b1f228f8e0 # Parent 50bd5d2c15cf1ee8f62962fd7a8bbe0fe4ba9fd3 x86, hvm, rombios: INT13 LBA48 support for disks bigger than 128GB. The new limit should be 2TB. Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxx> --- tools/firmware/rombios/rombios.c | 63 +++++++++++++++++++++++++++------------ 1 files changed, 44 insertions(+), 19 deletions(-) diff -r 50bd5d2c15cf -r 7fbc521b07a9 tools/firmware/rombios/rombios.c --- a/tools/firmware/rombios/rombios.c Thu Dec 27 12:56:32 2007 +0000 +++ b/tools/firmware/rombios/rombios.c Thu Dec 27 13:00:40 2007 +0000 @@ -2538,7 +2538,10 @@ void ata_detect( ) case ATA_TYPE_ATA: printf("ata%d %s: ",channel,slave?" slave":"master"); i=0; while(c=read_byte(get_SS(),model+i++)) printf("%c",c); - printf(" ATA-%d Hard-Disk (%d MBytes)\n",version,(Bit16u)sizeinmb); + if (sizeinmb < 1UL<<16) + printf(" ATA-%d Hard-Disk (%04u MBytes)\n",version,(Bit16u)sizeinmb); + else + printf(" ATA-%d Hard-Disk (%04u GBytes)\n",version,(Bit16u)(sizeinmb>>10)); break; case ATA_TYPE_ATAPI: printf("ata%d %s: ",channel,slave?" slave":"master"); @@ -2671,8 +2674,28 @@ Bit32u lba; if (mode == ATA_MODE_PIO32) blksize>>=2; else blksize>>=1; + // Reset count of transferred data + write_word(ebda_seg, &EbdaData->ata.trsfsectors,0); + write_dword(ebda_seg, &EbdaData->ata.trsfbytes,0L); + current = 0; + + status = inb(iobase1 + ATA_CB_STAT); + if (status & ATA_CB_STAT_BSY) return 1; + + outb(iobase2 + ATA_CB_DC, ATA_CB_DC_HD15 | ATA_CB_DC_NIEN); + // sector will be 0 only on lba access. Convert to lba-chs if (sector == 0) { + if ((count >= 1 << 8) || (lba + count >= 1UL << 28)) { + outb(iobase1 + ATA_CB_FR, 0x00); + outb(iobase1 + ATA_CB_SC, (count >> 8) & 0xff); + outb(iobase1 + ATA_CB_SN, lba >> 24); + outb(iobase1 + ATA_CB_CL, 0); + outb(iobase1 + ATA_CB_CH, 0); + command |= 0x04; + count &= (1UL << 8) - 1; + lba &= (1UL << 24) - 1; + } sector = (Bit16u) (lba & 0x000000ffL); lba >>= 8; cylinder = (Bit16u) (lba & 0x0000ffffL); @@ -2680,15 +2703,6 @@ Bit32u lba; head = ((Bit16u) (lba & 0x0000000fL)) | 0x40; } - // Reset count of transferred data - write_word(ebda_seg, &EbdaData->ata.trsfsectors,0); - write_dword(ebda_seg, &EbdaData->ata.trsfbytes,0L); - current = 0; - - status = inb(iobase1 + ATA_CB_STAT); - if (status & ATA_CB_STAT_BSY) return 1; - - outb(iobase2 + ATA_CB_DC, ATA_CB_DC_HD15 | ATA_CB_DC_NIEN); outb(iobase1 + ATA_CB_FR, 0x00); outb(iobase1 + ATA_CB_SC, count); outb(iobase1 + ATA_CB_SN, sector); @@ -2814,8 +2828,28 @@ Bit32u lba; if (mode == ATA_MODE_PIO32) blksize>>=2; else blksize>>=1; + // Reset count of transferred data + write_word(ebda_seg, &EbdaData->ata.trsfsectors,0); + write_dword(ebda_seg, &EbdaData->ata.trsfbytes,0L); + current = 0; + + status = inb(iobase1 + ATA_CB_STAT); + if (status & ATA_CB_STAT_BSY) return 1; + + outb(iobase2 + ATA_CB_DC, ATA_CB_DC_HD15 | ATA_CB_DC_NIEN); + // sector will be 0 only on lba access. Convert to lba-chs if (sector == 0) { + if ((count >= 1 << 8) || (lba + count >= 1UL << 28)) { + outb(iobase1 + ATA_CB_FR, 0x00); + outb(iobase1 + ATA_CB_SC, (count >> 8) & 0xff); + outb(iobase1 + ATA_CB_SN, lba >> 24); + outb(iobase1 + ATA_CB_CL, 0); + outb(iobase1 + ATA_CB_CH, 0); + command |= 0x04; + count &= (1UL << 8) - 1; + lba &= (1UL << 24) - 1; + } sector = (Bit16u) (lba & 0x000000ffL); lba >>= 8; cylinder = (Bit16u) (lba & 0x0000ffffL); @@ -2823,15 +2857,6 @@ Bit32u lba; head = ((Bit16u) (lba & 0x0000000fL)) | 0x40; } - // Reset count of transferred data - write_word(ebda_seg, &EbdaData->ata.trsfsectors,0); - write_dword(ebda_seg, &EbdaData->ata.trsfbytes,0L); - current = 0; - - status = inb(iobase1 + ATA_CB_STAT); - if (status & ATA_CB_STAT_BSY) return 1; - - outb(iobase2 + ATA_CB_DC, ATA_CB_DC_HD15 | ATA_CB_DC_NIEN); outb(iobase1 + ATA_CB_FR, 0x00); outb(iobase1 + ATA_CB_SC, count); outb(iobase1 + ATA_CB_SN, sector); _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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