[PATCH v3 0/3]s390x/pv: Improve error reporting of protected VMs

[Cédric Le Goater]

Hello,

Here is a little series improving error reporting of protected VMs.

Thanks,

C.

Changes in v3:

 - dropped 's390x/pv: Check for support on the host'. This is already
   covered by the KVM capability.   
 - in s390_pv_check() (patch 2) drop the call to s390_pv_guest_check()
   since init time has already checked the same conditions. However,
   to report an error when the machine is not protected and the kernel
   secure, we still need s390_pv_check().

Changes in v2:

 - dropped ConfidentialGuestSupportClass handler. The check is now
   done from s390_pv_init() which is called after memory and CPU
   initialization. This gives us a better chance to tune the limits
   correctly.
 - pv_max_cpus now computed from the available size of the response
   buffer of the Read SCP Info Service Call (Thomas)
 
Cédric Le Goater (3):
  s390x/pv: Implement a CGS check helper
  s390x/pv: Introduce a s390_pv_check() helper for runtime
  s390x/pv: Move check on hugepage under s390_pv_guest_check()

 include/hw/s390x/pv.h |  2 ++
 hw/s390x/pv.c         | 64 +++++++++++++++++++++++++++++++++++++++++++
 target/s390x/diag.c   |  6 ++--
 3 files changed, 69 insertions(+), 3 deletions(-)

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2.39.0