Define a tracing function to trace in the KVM trace buffer and trace the changes of the APCB masks.
Signed-off-by: Pierre Morel <[email protected]> --- drivers/s390/crypto/vfio_ap_ops.c | 22 ++++++++++++++++++++++ drivers/s390/crypto/vfio_ap_private.h | 4 ++++ 2 files changed, 26 insertions(+) diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c index a8a9984..00e632a 100644 --- a/drivers/s390/crypto/vfio_ap_ops.c +++ b/drivers/s390/crypto/vfio_ap_ops.c @@ -753,6 +753,28 @@ static void vfio_ap_mdev_copy_masks(struct ap_matrix_mdev *matrix_mdev) memcpy(aqm, matrix_mdev->matrix.aqm, nbytes); nbytes = DIV_ROUND_UP(matrix_mdev->matrix.adm_max + 1, BITS_PER_BYTE); memcpy(adm, matrix_mdev->matrix.adm, nbytes); + + switch (matrix_mdev->kvm->arch.crypto.crycbd & CRYCB_FORMAT_MASK) { + case CRYCB_FORMAT2: + VM_AP_EVENT(matrix_mdev->kvm, 3, + "SET CRYCB: apm %016lx %016lx %016lx %016lx", + apm[0], apm[1], apm[2], apm[3]); + VM_AP_EVENT(matrix_mdev->kvm, 3, + "SET CRYCB: aqm %016lx %016lx %016lx %016lx", + aqm[0], aqm[1], aqm[2], aqm[3]); + VM_AP_EVENT(matrix_mdev->kvm, 3, + "SET CRYCB: adm %016lx %016lx %016lx %016lx", + adm[0], adm[1], adm[2], adm[3]); + break; + case CRYCB_FORMAT1: + case CRYCB_FORMAT0: /* Both CRYCB format uses APCB format 0 */ + default: /* Can not happen */ + VM_AP_EVENT(matrix_mdev->kvm, 3, + "SET CRYCB: apm %016lx aqm %04x adm %04x", apm[0], + *((unsigned short *)aqm), *((unsigned short *)adm)); + break; + } + } /** diff --git a/drivers/s390/crypto/vfio_ap_private.h b/drivers/s390/crypto/vfio_ap_private.h index 5675492..4cd779d 100644 --- a/drivers/s390/crypto/vfio_ap_private.h +++ b/drivers/s390/crypto/vfio_ap_private.h @@ -19,6 +19,10 @@ #include "ap_bus.h" +#define VM_AP_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ + debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ + d_args) + #define VFIO_AP_MODULE_NAME "vfio_ap" #define VFIO_AP_DRV_NAME "vfio_ap" -- 2.7.4
