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s390x: update zipl rom
The zipl bootloader rom we have has seen some dramatic speedups upstream,so let's update it to improve the experience when booting a guest image.
This binary is based on commit id 9a0842dd9823d529f721b418d554f17c72e009e3.
Signed-off-by: Alexander Graf <agraf@suse.de>
target-s390: add firmware code
This patch adds a firmware blob to the S390 target. The blob is a simpleimplementation of a virtio client that tries to read the second stagebootloader from sectors described as of offset 0x20 in the MBR.
In combination with an updated zipl this allows for booting from virtio...