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-rw-r--r--target/arm/cpu.h1
-rw-r--r--target/arm/helper.c4
-rw-r--r--target/arm/kvm64.c2
3 files changed, 5 insertions, 2 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index fcc5927587..fa24ce9f96 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -983,6 +983,7 @@ struct ArchCPU {
         uint32_t mvfr1;
         uint32_t mvfr2;
         uint32_t id_dfr0;
+        uint32_t id_dfr1;
         uint32_t dbgdidr;
         uint32_t dbgdevid;
         uint32_t dbgdevid1;
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 0737851925..7ff03f1a4b 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -7581,11 +7581,11 @@ void register_cp_regs_for_features(ARMCPU *cpu)
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa64_tid3,
               .resetvalue = cpu->isar.id_pfr2 },
-            { .name = "RES_0_C0_C3_5", .state = ARM_CP_STATE_BOTH,
+            { .name = "ID_DFR1", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 5,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa64_tid3,
-              .resetvalue = 0 },
+              .resetvalue = cpu->isar.id_dfr1 },
             { .name = "ID_MMFR5", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 6,
               .access = PL1_R, .type = ARM_CP_CONST,
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index 2d737c443e..1197253d12 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -643,6 +643,8 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
                               ARM64_SYS_REG(3, 0, 0, 3, 2));
         err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_pfr2,
                               ARM64_SYS_REG(3, 0, 0, 3, 4));
+        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_dfr1,
+                              ARM64_SYS_REG(3, 0, 0, 3, 5));
         err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr5,
                               ARM64_SYS_REG(3, 0, 0, 3, 6));