[PATCH v3 0/5] KVM: arm64: nv: Even more VNCR fixes

[Oliver Upton <oupton@kernel.org>]

Addressing most of the issues that came up with v2. Of note, I left
Sashiko's (valid) feedback about HWPOISON PFNs not signalling userspace
unaddressed because it requires untangling the return code mess a bit.
That and the bugs fixed in this series are quite a bit worse :)

Applies to kvmarm/fixes.

v2 -> v3:
 - Avoid evaluating permissions in case of early return / higher
   priority fault (Marc)
 - Drop BUG_ON() from VNCR abort injetion path (Marc)
 - Ensure is_gmem is always initialized (Sashiko)
 - Return EINVAL for SEAs due to memory attribute mismatch, avoiding
   confusion with gmem memory fault exits (Sashiko)

Oliver Upton (5):
  KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR
  KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN
  KVM: arm64: nv: Re-translate VNCR before injecting abort
  KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory
  KVM: arm64: nv: Mark VM as bugged for unexpected VNCR abort

 arch/arm64/include/asm/kvm_nested.h |   8 ++
 arch/arm64/kvm/at.c                 |   8 --
 arch/arm64/kvm/nested.c             | 164 ++++++++++++++--------------
 3 files changed, 91 insertions(+), 89 deletions(-)


base-commit: fcda30b134d262a1b1826555352bd7349051486e
-- 
2.47.3