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| author | Paolo Bonzini <pbonzini@redhat.com> | 2011-09-13 14:50:15 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-10-28 19:25:50 +0200 |
| commit | a8f4bbe2900f0ebdead032fb8da137777bddd925 (patch) | |
| tree | b6df6eb0fdc09f876a7e88566460ec15629037f0 /hw/scsi-disk.c | |
| parent | b6c251ab1739cd67817db003e9878f92c3feff2b (diff) | |
| download | focaccia-qemu-a8f4bbe2900f0ebdead032fb8da137777bddd925.tar.gz focaccia-qemu-a8f4bbe2900f0ebdead032fb8da137777bddd925.zip | |
scsi-disk: store valid mode pages in a table
A small refactoring of the MODE SENSE implementation in scsi-disk. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/scsi-disk.c')
| -rw-r--r-- | hw/scsi-disk.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index bdb98ef5e2..8f3ada6bb0 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -607,10 +607,23 @@ static int scsi_emulate_mechanism_status(SCSIDiskState *s, uint8_t *outbuf) static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, int page_control) { + static const int mode_sense_valid[0x3f] = { + [MODE_PAGE_HD_GEOMETRY] = (1 << TYPE_DISK), + [MODE_PAGE_FLEXIBLE_DISK_GEOMETRY] = (1 << TYPE_DISK), + [MODE_PAGE_CACHING] = (1 << TYPE_DISK) | (1 << TYPE_ROM), + [MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM), + }; + BlockDriverState *bdrv = s->bs; int cylinders, heads, secs; uint8_t *p = *p_outbuf; + if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { + return -1; + } + + p[0] = page; + /* * If Changeable Values are requested, a mask denoting those mode parameters * that are changeable shall be returned. As we currently don't support @@ -619,10 +632,6 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, */ switch (page) { case MODE_PAGE_HD_GEOMETRY: - if (s->qdev.type == TYPE_ROM) { - return -1; - } - p[0] = 4; p[1] = 0x16; if (page_control == 1) { /* Changeable Values */ break; @@ -654,10 +663,6 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, break; case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY: - if (s->qdev.type == TYPE_ROM) { - return -1; - } - p[0] = 5; p[1] = 0x1e; if (page_control == 1) { /* Changeable Values */ break; @@ -707,10 +712,6 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, break; case MODE_PAGE_CAPABILITIES: - if (s->qdev.type != TYPE_ROM) { - return -1; - } - p[0] = 0x2a; p[1] = 0x14; if (page_control == 1) { /* Changeable Values */ break; |