From 618173c1319431959a7b3f0500435e4e04f05dff Mon Sep 17 00:00:00 2001 From: Michal Orzel Date: Fri, 22 May 2026 09:35:56 +0200 Subject: [PATCH] xen/arm: Add C1-Ultra definitions Add processor definitions for C1-Ultra. These will be used for errata detection in subsequent patches. These values can be found in the C1-Ultra TRM: https://developer.arm.com/documentation/108014/0100/ ... in section A.5.1 ("MIDR_EL1, Main ID Register"). Signed-off-by: Michal Orzel Reviewed-by: Julien Grall (cherry picked from commit 36ddaa7918d6ec0d06a31079c8a25a6ae3c69cbc) --- xen/arch/arm/include/asm/processor.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/arch/arm/include/asm/processor.h b/xen/arch/arm/include/asm/processor.h index 5fda69344c..85a7469eba 100644 --- a/xen/arch/arm/include/asm/processor.h +++ b/xen/arch/arm/include/asm/processor.h @@ -90,6 +90,7 @@ #define ARM_CPU_PART_NEOVERSE_V3AE 0xD83 #define ARM_CPU_PART_NEOVERSE_V3 0xD84 #define ARM_CPU_PART_CORTEX_X925 0xD85 +#define ARM_CPU_PART_C1_ULTRA 0xD8C #define MIDR_CORTEX_A12 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A12) #define MIDR_CORTEX_A17 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A17) @@ -120,6 +121,7 @@ #define MIDR_NEOVERSE_V3AE MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3AE) #define MIDR_NEOVERSE_V3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3) #define MIDR_CORTEX_X925 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X925) +#define MIDR_C1_ULTRA MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_C1_ULTRA) /* MPIDR Multiprocessor Affinity Register */ #define _MPIDR_UP (30)