On Mon, Jan 03, 2022 at 06:05:07PM +0000, Marc Zyngier wrote: > Add basic support for Pointer Authentication when running a KVM > guest and that the host supports it, loosely based on the SVE > support. > > Although the feature is enabled by default when the host advertises > it, it is possible to disable it by setting the 'pauth=off' CPU > property. The 'pauth' comment is removed from cpu-features.rst, > as it is now common to both TCG and KVM. > > Tested on an Apple M1 running 5.16-rc6. > > Cc: Eric Auger <eric.auger@xxxxxxxxxx> > Cc: Andrew Jones <drjones@xxxxxxxxxx> > Cc: Richard Henderson <richard.henderson@xxxxxxxxxx> > Cc: Peter Maydell <peter.maydell@xxxxxxxxxx> > Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> > --- > * From v1: > - Drop 'pauth' documentation > - Make the TCG path common to both TCG and KVM > - Some tidying up > > docs/system/arm/cpu-features.rst | 4 ---- > target/arm/cpu.c | 14 ++++---------- > target/arm/cpu.h | 1 + > target/arm/cpu64.c | 33 ++++++++++++++++++++++++++++---- > target/arm/kvm64.c | 21 ++++++++++++++++++++ > 5 files changed, 55 insertions(+), 18 deletions(-) > Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx> Thanks, drew
