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scsi-disk: add FORMAT UNIT command

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When initialising a drive ready to install MacOS, Apple HD SC Setup first attempts
to format the drive. Add a simple FORMAT UNIT command which simply returns success
to allow the format to succeed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220622105314.802852-9-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2022-06-22 11:53:08 +01:00 committed by Paolo Bonzini
parent d9a107d153
commit 6ab717610f
2 changed files with 5 additions and 0 deletions
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4
hw/scsi/scsi-disk.c
View File

@ -2180,6 +2180,9 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf)
trace_scsi_disk_emulate_command_WRITE_SAME(
req->cmd.buf[0] == WRITE_SAME_10 ? 10 : 16, r->req.cmd.xfer);
break;
case FORMAT_UNIT:
trace_scsi_disk_emulate_command_FORMAT_UNIT(r->req.cmd.xfer);
break;
default:
trace_scsi_disk_emulate_command_UNKNOWN(buf[0],
scsi_command_name(buf[0]));
@ -2585,6 +2588,7 @@ static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = {
[VERIFY_10] = &scsi_disk_emulate_reqops,
[VERIFY_12] = &scsi_disk_emulate_reqops,
[VERIFY_16] = &scsi_disk_emulate_reqops,
[FORMAT_UNIT] = &scsi_disk_emulate_reqops,
[READ_6] = &scsi_disk_dma_reqops,
[READ_10] = &scsi_disk_dma_reqops,

1
hw/scsi/trace-events
View File

@ -334,6 +334,7 @@ scsi_disk_emulate_command_UNMAP(size_t xfer) "Unmap (len %zd)"
scsi_disk_emulate_command_VERIFY(int bytchk) "Verify (bytchk %d)"
scsi_disk_emulate_command_WRITE_SAME(int cmd, size_t xfer) "WRITE SAME %d (len %zd)"
scsi_disk_emulate_command_UNKNOWN(int cmd, const char *name) "Unknown SCSI command (0x%2.2x=%s)"
scsi_disk_emulate_command_FORMAT_UNIT(size_t xfer) "Format Unit (len %zu)"
scsi_disk_dma_command_READ(uint64_t lba, uint32_t len) "Read (sector %" PRId64 ", count %u)"
scsi_disk_dma_command_WRITE(const char *cmd, uint64_t lba, int len) "Write %s(sector %" PRId64 ", count %u)"
scsi_disk_new_request(uint32_t lun, uint32_t tag, const char *line) "Command: lun=%d tag=0x%x data=%s"