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Diffstat (limited to 'arch/arm64/kvm/sys_regs.h')
-rw-r--r--arch/arm64/kvm/sys_regs.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index 1d94ed6efad2..cc6338d38766 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -247,4 +247,14 @@ int kvm_finalize_sys_regs(struct kvm_vcpu *vcpu);
CRn(sys_reg_CRn(reg)), CRm(sys_reg_CRm(reg)), \
Op2(sys_reg_Op2(reg))
+#define ID_REG_LIMIT_FIELD_ENUM(val, reg, field, limit) \
+({ \
+ u64 __f_val = FIELD_GET(reg##_##field##_MASK, val); \
+ (val) &= ~reg##_##field##_MASK; \
+ (val) |= FIELD_PREP(reg##_##field##_MASK, \
+ min(__f_val, \
+ (u64)SYS_FIELD_VALUE(reg, field, limit))); \
+ (val); \
+})
+
#endif /* __ARM64_KVM_SYS_REGS_LOCAL_H__ */