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| author | Eric Farman <farman@linux.ibm.com> | 2021-06-18 01:25:34 +0200 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2021-06-21 08:48:21 +0200 |
| commit | 3fdc622ad79636f3d7f8bed50a53bc28af1850e1 (patch) | |
| tree | 845ed9494274840f05c2f7832a6073ee455f6474 /include | |
| parent | 10b81272b305da375c3c3e9ec86f2e35df702f2e (diff) | |
| download | qemu-3fdc622ad79636f3d7f8bed50a53bc28af1850e1.zip | |
s390x/css: Introduce an ESW struct
The Interrupt Response Block is comprised of several other
structures concatenated together, but only the 12-byte
Subchannel-Status Word (SCSW) is defined as a proper struct.
Everything else is a simple array of 32-bit words.
Let's define a proper struct for the 20-byte Extended-Status
Word (ESW) so that we can make good decisions about the sense
data that would go into the ECW area for virtual vs
passthrough devices.
[CH: adapted ESW definition to build with mingw, as discussed]
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20210617232537.1337506-2-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/s390x/ioinst.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/hw/s390x/ioinst.h b/include/hw/s390x/ioinst.h index c6737a30d4..3771fff9d4 100644 --- a/include/hw/s390x/ioinst.h +++ b/include/hw/s390x/ioinst.h @@ -123,10 +123,20 @@ typedef struct SCHIB { uint8_t mda[4]; } QEMU_PACKED SCHIB; +/* format-0 extended-status word */ +typedef struct ESW { + uint32_t word0; /* subchannel logout for format 0 */ + uint32_t erw; + uint64_t word2; /* failing-storage address for format 0 */ + uint32_t word4; /* secondary-CCW address for format 0 */ +} QEMU_PACKED ESW; + +#define ESW_ERW_SENSE 0x01000000 + /* interruption response block */ typedef struct IRB { SCSW scsw; - uint32_t esw[5]; + ESW esw; uint32_t ecw[8]; uint32_t emw[8]; } IRB; |