From 95ea96e8b1610f2d1bfa2abd0d12c40d647e563d Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 7 Jan 2022 15:01:54 +0000 Subject: hw/arm/virt: KVM: Enable PAuth when supported by the host 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 Cc: Richard Henderson Cc: Peter Maydell Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier Reviewed-by: Richard Henderson Message-id: 20220107150154.2490308-1-maz@kernel.org [PMM: fixed indentation] Signed-off-by: Peter Maydell --- target/arm/cpu.h | 1 + 1 file changed, 1 insertion(+) (limited to 'target/arm/cpu.h') diff --git a/target/arm/cpu.h b/target/arm/cpu.h index e33f37b70a..c6a4d50e82 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1076,6 +1076,7 @@ void aarch64_sve_narrow_vq(CPUARMState *env, unsigned vq); void aarch64_sve_change_el(CPUARMState *env, int old_el, int new_el, bool el0_a64); void aarch64_add_sve_properties(Object *obj); +void aarch64_add_pauth_properties(Object *obj); /* * SVE registers are encoded in KVM's memory in an endianness-invariant format. -- cgit 1.4.1