On Tue, Aug 20, 2024 at 11:03:38AM +0100, Marc Zyngier wrote: > On a system with a GICv3, if a guest hasn't been configured with > GICv3 and that the host is not capable of GICv2 emulation, > a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2. > > We therefore try to emulate the SGI access, only to hit a NULL > pointer as no private interrupt is allocated (no GIC, remember?). > > The obvious fix is to give the guest what it deserves, in the > shape of a UNDEF exception. > > Reported-by: Alexander Potapenko <glider@xxxxxxxxxx> > Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx LGTM, and just as an FYI I do plan on grabbing this for 6.11 -- Thanks, Oliver
