diff options
| author | Alexander Yarygin <yarygin@linux.vnet.ibm.com> | 2016-06-09 15:54:10 +0300 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2016-07-11 09:48:05 +0200 |
| commit | e468b6730cb36a475fd4e71f57b020ca37ebd8ae (patch) | |
| tree | 986bd04c1f999cd4eaa5f0db888419615de17219 /hw/s390x/ipl.h | |
| parent | 07c6f329bdf37595777ddd334de9bbd24d4eed7c (diff) | |
s390x/ipl: Support IPL from selected SCSI device
If bootindex is specified for a device, we need to IPL from
it. Currently it works for ccw devices, but not for SCSI. To be able to
IPL from the specific device, pc-bios needs to know its address.
For this reason we add special QEMU_SCSI IPL type into the IPLB
structure, that contains the scsi device address.
We enhance the ipl block with a currently qemu-only parameter block
that allows us to specify a concrete scsi device.
Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x/ipl.h')
| -rw-r--r-- | hw/s390x/ipl.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index 9aa4d942a7..ed3f2c8a43 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -46,6 +46,16 @@ struct IplBlockFcp { } QEMU_PACKED; typedef struct IplBlockFcp IplBlockFcp; +struct IplBlockQemuScsi { + uint32_t lun; + uint16_t target; + uint16_t channel; + uint8_t reserved0[77]; + uint8_t ssid; + uint16_t devno; +} QEMU_PACKED; +typedef struct IplBlockQemuScsi IplBlockQemuScsi; + union IplParameterBlock { struct { uint32_t len; @@ -59,6 +69,7 @@ union IplParameterBlock { union { IplBlockCcw ccw; IplBlockFcp fcp; + IplBlockQemuScsi scsi; }; } QEMU_PACKED; struct { @@ -102,10 +113,12 @@ typedef struct S390IPLState S390IPLState; #define S390_IPL_TYPE_FCP 0x00 #define S390_IPL_TYPE_CCW 0x02 +#define S390_IPL_TYPE_QEMU_SCSI 0xff #define S390_IPLB_HEADER_LEN 8 #define S390_IPLB_MIN_CCW_LEN 200 #define S390_IPLB_MIN_FCP_LEN 384 +#define S390_IPLB_MIN_QEMU_SCSI_LEN 200 static inline bool iplb_valid_len(IplParameterBlock *iplb) { |