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-rw-r--r--include/lib/cpus/aarch64/cortex_x1.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/lib/cpus/aarch64/cortex_x1.h b/include/lib/cpus/aarch64/cortex_x1.h
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+++ b/include/lib/cpus/aarch64/cortex_x1.h
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+/*
+ * Copyright (c) 2022, Google LLC. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_X1_H
+#define CORTEX_X1_H
+
+/* Cortex-X1 MIDR for r1p0 */
+#define CORTEX_X1_MIDR U(0x411fd440)
+
+/* Cortex-X1 loop count for CVE-2022-23960 mitigation */
+#define CORTEX_X1_BHB_LOOP_COUNT U(32)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions.
+ ******************************************************************************/
+#define CORTEX_X1_CPUECTLR_EL1 S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Auxiliary Control register specific definitions.
+ ******************************************************************************/
+#define CORTEX_X1_ACTLR2_EL1 S3_0_C15_C1_1
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_X1_CPUPWRCTLR_EL1 S3_0_C15_C2_7
+#define CORTEX_X1_CORE_PWRDN_EN_MASK U(0x1)
+
+#endif /* CORTEX_X1_H */