Christian Borntraeger
6efd2c2a12
s390x/ipl: Fix boot if no bootindex was specified
commit fa92e218df1d ("s390x/ipl: avoid sign extension") introduced a regression: qemu-system-s390x -drive file=image.qcow,format=qcow2 does not boot, the bios states "No virtio-blk device found!" adding bootindex=1 does boot. The reason is that the uint32_t as return value will not do the right thing for the return -1 (default without bootindex). The bios itself, will interpret a 64bit -1 as autodetect (but it will interpret 32bit -1 as ccw device address ff.ff.ffff) Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org # v2.3.0 Tested-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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