On Wed, 9 Mar 2022 18:13:08 +0000, Will Deacon wrote:
> Commit d43583b890e7 ("KVM: arm64: Expose PSCI SYSTEM_RESET2 call to the
> guest") hooked up the SYSTEM_RESET2 PSCI call for guests but failed to
> preserve its arguments for userspace, instead overwriting them with
> zeroes via smccc_set_retval(). As Linux only passes zeroes for these
> arguments, this appeared to be working for Linux guests. Oh well.
>
> Don't call smccc_set_retval() for a SYSTEM_RESET2 heading to userspace
> and instead set X0 (and only X0) explicitly to PSCI_RET_INTERNAL_FAILURE
> just in case the vCPU re-enters the guest.
Applied to next, thanks!
[1/1] KVM: arm64: Really propagate PSCI SYSTEM_RESET2 arguments to userspace
commit: 9d3e7b7c82fd9d40240867ef4c45388cd05031f3
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
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