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| author | Marc Zyngier <maz@kernel.org> | 2019-07-05 11:21:27 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-07 09:28:37 +0100 |
| commit | 2c3db77c62b681af60757378219edcc93f658ba1 (patch) | |
| tree | bee7f1b47c5c6df94ef412ca076be131331d0b6c /arch/arm64 | |
| parent | 308472c69213cea9b22a2156a19ea9ec06ea3bc1 (diff) | |
| download | linux-stable-2c3db77c62b681af60757378219edcc93f658ba1.tar.gz linux-stable-2c3db77c62b681af60757378219edcc93f658ba1.tar.bz2 linux-stable-2c3db77c62b681af60757378219edcc93f658ba1.zip | |
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 <maz@kernel.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kvm/hyp/include/hyp/switch.h | 23 |
1 files changed, 13 insertions, 10 deletions
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); |