[PATCH 00/12] s390/vfio_ap: crypto pass-through for SE guests

Tony Krowiak
2023-08-15T18:44:28Z

This patch series is for the changes required in the vfio_ap device
driver to facilitate pass-through of crypto devices to a secure
execution guest. In particular, it is critical that no data from the
queues passed through to the SE guest is leaked when the guest is
destroyed. There are also some new response codes returned from the
PQAP(ZAPQ) and PQAP(TAPQ) commands that have been added to the
architecture in support of pass-through of crypto devices to SE guests;
these need to be accounted for when handling the reset of queues.

Janosch Frank (1):
s390/uv: export uv_pin_shared for direct usage

Tony Krowiak (11):
s390/vfio-ap: No need to check the 'E' and 'I' bits in APQSW after
TAPQ
s390/vfio-ap: clean up irq resources if possible
s390/vfio-ap: wait for response code 05 to clear on queue reset
s390/vfio-ap: allow deconfigured queue to be passed through to a guest
s390/vfio-ap: remove upper limit on wait for queue reset to complete
s390/vfio-ap: store entire AP queue status word with the queue object
s390/vfio-ap: use work struct to verify queue reset
s390/vfio-ap: handle queue state change in progress on reset
s390/vfio-ap: check for TAPQ response codes 0x35 and 0x36
kvm: s390: export kvm_s390_pv*_is_protected functions
s390/vfio-ap: Make sure nib is shared

arch/s390/include/asm/kvm_host.h | 3 +
arch/s390/include/asm/uv.h | 6 +
arch/s390/kernel/uv.c | 3 +-
arch/s390/kvm/kvm-s390.h | 12 --
arch/s390/kvm/pv.c | 14 +++
drivers/s390/crypto/vfio_ap_ops.c | 164 +++++++++++++++++---------
drivers/s390/crypto/vfio_ap_private.h | 6 +-
7 files changed, 135 insertions(+), 73 deletions(-)

--
2.39.3