From 2c3db77c62b681af60757378219edcc93f658ba1 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 5 Jul 2019 11:21:27 +0100 Subject: KVM: arm64: pauth: Use ctxt_sys_reg() instead of raw sys_regs access Now that we have a wrapper for the sysreg accesses, let's use that consistently. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/hyp/include/hyp/switch.h | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) (limited to 'arch/arm64/kvm') diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index 7cf14e4f9f77..70367699d69a 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -364,11 +364,14 @@ static inline bool esr_is_ptrauth_trap(u32 esr) return false; } -#define __ptrauth_save_key(regs, key) \ -({ \ - regs[key ## KEYLO_EL1] = read_sysreg_s(SYS_ ## key ## KEYLO_EL1); \ - regs[key ## KEYHI_EL1] = read_sysreg_s(SYS_ ## key ## KEYHI_EL1); \ -}) +#define __ptrauth_save_key(ctxt, key) \ + do { \ + u64 __val; \ + __val = read_sysreg_s(SYS_ ## key ## KEYLO_EL1); \ + ctxt_sys_reg(ctxt, key ## KEYLO_EL1) = __val; \ + __val = read_sysreg_s(SYS_ ## key ## KEYHI_EL1); \ + ctxt_sys_reg(ctxt, key ## KEYHI_EL1) = __val; \ +} while(0) static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu) { @@ -380,11 +383,11 @@ static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu) return false; ctxt = &__hyp_this_cpu_ptr(kvm_host_data)->host_ctxt; - __ptrauth_save_key(ctxt->sys_regs, APIA); - __ptrauth_save_key(ctxt->sys_regs, APIB); - __ptrauth_save_key(ctxt->sys_regs, APDA); - __ptrauth_save_key(ctxt->sys_regs, APDB); - __ptrauth_save_key(ctxt->sys_regs, APGA); + __ptrauth_save_key(ctxt, APIA); + __ptrauth_save_key(ctxt, APIB); + __ptrauth_save_key(ctxt, APDA); + __ptrauth_save_key(ctxt, APDB); + __ptrauth_save_key(ctxt, APGA); vcpu_ptrauth_enable(vcpu); -- cgit v1.2.3-70-g09d2