Small series to fix a couple issues around when 64bit-only behavior is
applied. As KVM is more restrictive than the kernel in terms of 32bit
support (no asymmetry), we really needed our own predicate when the
meaning of system_supports_32bit_el0() changed in commit 2122a833316f
("arm64: Allow mismatched 32-bit EL0 support").
Lightly tested as I do not have any asymmetric systems on hand at the
moment. Attention on patch 2 would be appreciated as it affects ABI.
Applies to 6.0-rc1.
v1 -> v2:
- Fix a silly logic inversion in vcpu_mode_is_bad_32bit()
- Rebase to 6.0-rc1
Oliver Upton (2):
KVM: arm64: Treat PMCR_EL1.LC as RES1 on asymmetric systems
KVM: arm64: Reject 32bit user PSTATE on asymmetric systems
arch/arm64/include/asm/kvm_host.h | 4 ++++
arch/arm64/kvm/arm.c | 3 +--
arch/arm64/kvm/guest.c | 2 +-
arch/arm64/kvm/sys_regs.c | 4 ++--
4 files changed, 8 insertions(+), 5 deletions(-)
base-commit: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868
--
2.37.1.595.g718a3a8f04-goog
