On 08/12/2025 22.32, Zhuoying Cai wrote:
From: Collin Walling <[email protected]>
In order to support secure IPL (aka secure boot) for the s390-ccw BIOS,
a new s390 DIAGNOSE instruction is introduced to leverage QEMU for
handling operations such as signature verification and certificate
retrieval.
Currently, only subcode 0 is supported with this patch, which is used to
query a bitmap of which subcodes are supported.
Signed-off-by: Collin Walling <[email protected]>
Reviewed-by: Farhan Ali <[email protected]>
---
docs/specs/s390x-secure-ipl.rst | 18 ++++++++++++++++++
include/hw/s390x/ipl/diag508.h | 15 +++++++++++++++
target/s390x/diag.c | 27 +++++++++++++++++++++++++++
target/s390x/kvm/kvm.c | 14 ++++++++++++++
target/s390x/s390x-internal.h | 2 ++
target/s390x/tcg/misc_helper.c | 7 +++++++
6 files changed, 83 insertions(+)
create mode 100644 include/hw/s390x/ipl/diag508.h
Reviewed-by: Thomas Huth <[email protected]>
