Hi Lorenzo, Wed, 17 Mar 2021 10:07:19 +0000, Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> wrote: > > GIC CPU interfaces versions predating GIC v4.1 were not built to > accommodate vINTID within the vSGI range; as reported in the GIC > specifications (8.2 "Changes to the CPU interface"), it is > CONSTRAINED UNPREDICTABLE to deliver a vSGI to a PE with > ID_AA64PFR0_EL1.GIC < b0011. > > Check the GIC CPUIF version by reading the SYS_ID_AA64_PFR0_EL1. > > Disable vSGIs if a CPUIF version < 4.1 is detected to prevent using > vSGIs on systems where they may misbehave. > > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> > Cc: Marc Zyngier <maz@xxxxxxxxxx> Does it need to go in as a fix? or can it just be pushed into 5.13? Given that there is no such HW in the wild just yet, I'm inclined to do the latter... Thanks, M. -- Without deviation from the norm, progress is not possible.
