diff options
| author | Jing Zhang <jingzhangos@google.com> | 2023-10-03 23:04:04 +0000 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-10-04 17:11:50 +0000 |
| commit | 8cfd5be88ebe3d71be1a2c52fc72a355bb924b49 (patch) | |
| tree | 6adda9e662ecd0d2fe626eef949bdc1a5535384f /lib/dynamic_debug.c | |
| parent | d5a32b60dc184cc7309f83648a368b94d91c797f (diff) | |
KVM: arm64: Allow userspace to change ID_AA64PFR0_EL1
Allow userspace to change the guest-visible value of the register with
some severe limitation:
- No changes to features not virtualized by KVM (AMU, MPAM, RAS)
- Short of full GICv2 emulation in kernel, hiding GICv3 from the guest
makes absolutely no sense.
- FP is effectively assumed for KVM VMs.
Signed-off-by: Jing Zhang <jingzhangos@google.com>
[oliver: restrict features that are illogical to change]
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231003230408.3405722-9-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'lib/dynamic_debug.c')
0 files changed, 0 insertions, 0 deletions