diff options
| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-11 20:57:30 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-11 20:57:30 +0000 |
| commit | 9118e7f08f39001c92d595090b41305ef45c200a (patch) | |
| tree | 7846fa588037d420ce306aaf68a5c4857c0dfa0e /hw/ide.c | |
| parent | f07b6003b6cebaa5404d702ad8aca181580e4d6c (diff) | |
windows cdrom cache flush (Stefano Stabellini)
Windows only flushes its cache of a CDROM if it gets a
SENSE_UNIT_ATTENTION CHECK_CONDITION response to a REQUEST_SENSE
command.
Make sure it does so after we change the CD.
Tab damage fixed by Anthony Liguori
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Steven Smith <steven.smith@citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5698 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/ide.c')
| -rw-r--r-- | hw/ide.c | 28 |
1 files changed, 27 insertions, 1 deletions
@@ -351,6 +351,7 @@ #define ASC_ILLEGAL_OPCODE 0x20 #define ASC_LOGICAL_BLOCK_OOR 0x21 #define ASC_INV_FIELD_IN_CMD_PACKET 0x24 +#define ASC_MEDIUM_MAY_HAVE_CHANGED 0x28 #define ASC_INCOMPATIBLE_FORMAT 0x30 #define ASC_MEDIUM_NOT_PRESENT 0x3a #define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39 @@ -1106,6 +1107,17 @@ static void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) ide_set_irq(s); } +static void ide_atapi_cmd_check_status(IDEState *s) +{ +#ifdef DEBUG_IDE_ATAPI + printf("atapi_cmd_check_status\n"); +#endif + s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4); + s->status = ERR_STAT; + s->nsector = 0; + ide_set_irq(s); +} + static inline void cpu_to_ube16(uint8_t *buf, int val) { buf[0] = val >> 8; @@ -1528,6 +1540,14 @@ static void ide_atapi_cmd(IDEState *s) printf("\n"); } #endif + /* If there's a UNIT_ATTENTION condition pending, only + REQUEST_SENSE and INQUIRY commands are allowed to complete. */ + if (s->sense_key == SENSE_UNIT_ATTENTION && + s->io_buffer[0] != GPCMD_REQUEST_SENSE && + s->io_buffer[0] != GPCMD_INQUIRY) { + ide_atapi_cmd_check_status(s); + return; + } switch(s->io_buffer[0]) { case GPCMD_TEST_UNIT_READY: if (bdrv_is_inserted(s->bs)) { @@ -1623,6 +1643,8 @@ static void ide_atapi_cmd(IDEState *s) buf[2] = s->sense_key; buf[7] = 10; buf[12] = s->asc; + if (s->sense_key == SENSE_UNIT_ATTENTION) + s->sense_key = SENSE_NONE; ide_atapi_cmd_reply(s, 18, max_len); break; case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL: @@ -1974,9 +1996,13 @@ static void cdrom_change_cb(void *opaque) IDEState *s = opaque; uint64_t nb_sectors; - /* XXX: send interrupt too */ bdrv_get_geometry(s->bs, &nb_sectors); s->nb_sectors = nb_sectors; + + s->sense_key = SENSE_UNIT_ATTENTION; + s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED; + + ide_set_irq(s); } static void ide_cmd_lba48_transform(IDEState *s, int lba48) |