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s390x/css: support format-0 ccws

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Add support for format-0 ccws in channel programs. As a format-1 ccw
contains the same information as format-0 ccws, only supporting larger
addresses, simply convert every ccw to format-1 as we walk the chain.

Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Cornelia Huck 2014-09-05 09:33:17 +02:00 • committed by Christian Borntraeger
parent 450749141e
commit a327c9215d
3 changed files with 32 additions and 9 deletions
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10
target-s390x/ioinst.h
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@ -156,6 +156,16 @@ typedef struct ORB {
#define ORB_CTRL1_MASK_ORBX 0x01
#define ORB_CTRL1_MASK_INVALID 0x3e
/* channel command word (type 0) */
typedef struct CCW0 {
uint8_t cmd_code;
uint8_t cda0;
uint16_t cda1;
uint8_t flags;
uint8_t reserved;
uint16_t count;
} QEMU_PACKED CCW0;
/* channel command word (type 1) */
typedef struct CCW1 {
uint8_t cmd_code;