On Sun, Aug 17 2025, Marc Zyngier <maz@xxxxxxxxxx> wrote: > Allow userspace to write to RAS_frac, under the condition that > the host supports RASv1p1 with RAS_frac==1. Other configurations > will result in RAS_frac being exposed as 0, and therefore implicitly > not writable. > > To avoid the clutter, the ID_AA64PFR1_EL1 sanitisation is moved to > its own function. > > Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> > --- > arch/arm64/kvm/nested.c | 3 ++- > arch/arm64/kvm/sys_regs.c | 41 ++++++++++++++++++++++++++------------- > 2 files changed, 29 insertions(+), 15 deletions(-) Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
