On 2/5/22 03:55, Peter Maydell wrote:
Currently we don't allow guests under hvf to use the PAuth extension,
because we didn't have any special code to handle that, and therefore
in arm_cpu_pauth_finalize() we will sanitize the ID_AA64ISAR1 value
the guest sees to clear the PAuth related fields.
Add support for this in the same way that KVM does it, by defaulting
to "PAuth enabled" if the host CPU has it and allowing the user to
disable it via '-cpu pauth=no' on the command line.
Signed-off-by: Peter Maydell<peter.mayd...@linaro.org>
---
target/arm/cpu64.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
Currently not a problem in practice because M1 doesn't support PAuth, so the ID fields are
already clear. However, it is a confusing difference to kvm, and presumably some future
Apple chip will enable PAuth.
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
r~
