Introduce data-structures required for the ARM property layer. There are
four classes of properties:
STRING: Multi-bit fields with arch-defined named values, such as
("off", "aes", "pmull", ...).
BOOLEAN: 1-bit fields.
NUMERIC: Numeric values like cache geometry, debug counter widths, etc.
FRACTIONAL: Paired (base, frac) fields exposed as a single "M.F" string
(e.g., CSV2/CSV2_FRAC, MPAM/MPAM_FRAC, RAS/RAS_FRAC, NV/NV_FRAC).
Co-authored-by: Khushit Shah <[email protected]>
Signed-off-by: Shaju Abraham <[email protected]>
---
target/arm/arm-cpu-props.h | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 target/arm/arm-cpu-props.h
diff --git a/target/arm/arm-cpu-props.h b/target/arm/arm-cpu-props.h
new file mode 100644
index 0000000000..1dc3786ea9
--- /dev/null
+++ b/target/arm/arm-cpu-props.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * ARM CPU feature properties.
+ *
+ * User-facing QOM properties that map to fields of the AArch64 ID
+ * registers described in cpu-idregs.inc.h.
+ *
+ */
+
+#ifndef ARM_CPU_PROPS_H
+#define ARM_CPU_PROPS_H
+
+#include "cpu-idregs.h"
+
+typedef enum ArmCpuPropType {
+ ARM_PROP_STRING,
+ ARM_PROP_BOOLEAN,
+ ARM_PROP_NUMERIC,
+ ARM_PROP_FRACTIONAL,
+} ArmCpuPropType;
+
+typedef struct ArmFracVal {
+ const char *name;
+ uint64_t base_val;
+ uint64_t frac_val;
+} ArmFracVal;
+
+typedef struct ArmCpuPropDesc {
+ const char *name;
+ ArmCpuPropType type;
+ ArmFieldIdx base_field;
+ ArmFieldIdx frac_field;
+ const ArmFracVal *vals;
+} ArmCpuPropDesc;
+
+#endif
--
2.52.0
