Since commit d26c25a9d19b ("arm64: KVM: Tighten guest core register
access from userspace"), KVM_{GET,SET}_ONE_REG rejects register IDs
that do not correspond to a single underlying architectural register.This series proposed a fix for this regression along with some related refactoring. For ease of review, the series is expanded out a little more than necessary. I also want a clean base to build SVE support on, since SVE needs to do some additional filtering to remove FPSIMD V-regs from KVM_GET_REG_LIST: thus, this series does a bit of refactoring beyond the basic needs of the fix. An equivalent fix should go to stable, but we may want something more self-contained for that case. Comments welcome. This series has not been tested yet. Dave Martin (3): KVM: arm64: Factor out core register size determination and validation KVM: arm64: Factor out KVM_GET_REG_LIST core register enumeration KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST arch/arm64/kvm/guest.c | 96 +++++++++++++++++++++++++++++++++++++------------- 1 file changed, 71 insertions(+), 25 deletions(-) -- 2.1.4 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
