diff options
Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 6ce2c5173482..5ccca509dff1 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1107,14 +1107,36 @@ static inline u64 *___ctxt_sys_reg(const struct kvm_cpu_context *ctxt, int r) #define ctxt_sys_reg(c,r) (*__ctxt_sys_reg(c,r)) u64 kvm_vcpu_apply_reg_masks(const struct kvm_vcpu *, enum vcpu_sysreg, u64); + +#define __vcpu_assign_sys_reg(v, r, val) \ + do { \ + const struct kvm_cpu_context *ctxt = &(v)->arch.ctxt; \ + u64 __v = (val); \ + if (vcpu_has_nv((v)) && (r) >= __SANITISED_REG_START__) \ + __v = kvm_vcpu_apply_reg_masks((v), (r), __v); \ + \ + ctxt_sys_reg(ctxt, (r)) = __v; \ + } while (0) + +#define __vcpu_rmw_sys_reg(v, r, op, val) \ + do { \ + const struct kvm_cpu_context *ctxt = &(v)->arch.ctxt; \ + u64 __v = ctxt_sys_reg(ctxt, (r)); \ + __v op (val); \ + if (vcpu_has_nv((v)) && (r) >= __SANITISED_REG_START__) \ + __v = kvm_vcpu_apply_reg_masks((v), (r), __v); \ + \ + ctxt_sys_reg(ctxt, (r)) = __v; \ + } while (0) + #define __vcpu_sys_reg(v,r) \ - (*({ \ + ({ \ const struct kvm_cpu_context *ctxt = &(v)->arch.ctxt; \ - u64 *__r = __ctxt_sys_reg(ctxt, (r)); \ + u64 __v = ctxt_sys_reg(ctxt, (r)); \ if (vcpu_has_nv((v)) && (r) >= __SANITISED_REG_START__) \ - *__r = kvm_vcpu_apply_reg_masks((v), (r), *__r);\ - __r; \ - })) + __v = kvm_vcpu_apply_reg_masks((v), (r), __v); \ + __v; \ + }) u64 vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg); void vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg); |