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qemu/target-arm-Test-correct-register-in-aa32_pan-and-aa3.patch
Peng Liang 0c39e725b0 target/arm: backport upstream patches to support CPU feature 
To support CPU feature in AArch64, we need to move some field from
ARMCPU to ARMISARegisters, add more definitions of ID fields, and add
suport query-cpu-model-expansion qmp command.  Let's backport upstream
patches to do these.

Signed-off-by: Peng Liang <liangpeng10@huawei.com>
2020-08-19 12:36:09 +08:00

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From 2bc630dc858bd0c010b7c375ebf1e8f4b4e0e346 Mon Sep 17 00:00:00 2001
From: Peter Maydell <peter.maydell@linaro.org>
Date: Fri, 14 Feb 2020 17:51:13 +0000
Subject: [PATCH 10/13] target/arm: Test correct register in aa32_pan and
aa32_ats1e1 checks
The isar_feature_aa32_pan and isar_feature_aa32_ats1e1 functions
are supposed to be testing fields in ID_MMFR3; but a cut-and-paste
error meant we were looking at MVFR0 instead.
Fix the functions to look at the right register; this requires
us to move at least id_mmfr3 to the ARMISARegisters struct; we
choose to move all the ID_MMFRn registers for consistency.
Fixes: 3d6ad6bb466f
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200214175116.9164-19-peter.maydell@linaro.org
---
hw/intc/armv7m_nvic.c | 8 ++--
target/arm/cpu.c | 96 +++++++++++++++++++++----------------------
target/arm/cpu.h | 14 +++----
target/arm/cpu64.c | 28 ++++++-------
target/arm/helper.c | 12 +++---
target/arm/kvm32.c | 17 ++++++++
target/arm/kvm64.c | 10 +++++
7 files changed, 106 insertions(+), 79 deletions(-)
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 0741db7b..f7ef6ad1 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -1227,13 +1227,13 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
case 0xd4c: /* AFR0. */
return cpu->id_afr0;
case 0xd50: /* MMFR0. */
- return cpu->id_mmfr0;
+ return cpu->isar.id_mmfr0;
case 0xd54: /* MMFR1. */
- return cpu->id_mmfr1;
+ return cpu->isar.id_mmfr1;
case 0xd58: /* MMFR2. */
- return cpu->id_mmfr2;
+ return cpu->isar.id_mmfr2;
case 0xd5c: /* MMFR3. */
- return cpu->id_mmfr3;
+ return cpu->isar.id_mmfr3;
case 0xd60: /* ISAR0. */
return cpu->isar.id_isar0;
case 0xd64: /* ISAR1. */
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 119bd275..c3728e3d 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1764,9 +1764,9 @@ static void arm1136_r2_initfn(Object *obj)
cpu->id_pfr1 = 0x1;
cpu->isar.id_dfr0 = 0x2;
cpu->id_afr0 = 0x3;
- cpu->id_mmfr0 = 0x01130003;
- cpu->id_mmfr1 = 0x10030302;
- cpu->id_mmfr2 = 0x01222110;
+ cpu->isar.id_mmfr0 = 0x01130003;
+ cpu->isar.id_mmfr1 = 0x10030302;
+ cpu->isar.id_mmfr2 = 0x01222110;
cpu->isar.id_isar0 = 0x00140011;
cpu->isar.id_isar1 = 0x12002111;
cpu->isar.id_isar2 = 0x11231111;
@@ -1796,9 +1796,9 @@ static void arm1136_initfn(Object *obj)
cpu->id_pfr1 = 0x1;
cpu->isar.id_dfr0 = 0x2;
cpu->id_afr0 = 0x3;
- cpu->id_mmfr0 = 0x01130003;
- cpu->id_mmfr1 = 0x10030302;
- cpu->id_mmfr2 = 0x01222110;
+ cpu->isar.id_mmfr0 = 0x01130003;
+ cpu->isar.id_mmfr1 = 0x10030302;
+ cpu->isar.id_mmfr2 = 0x01222110;
cpu->isar.id_isar0 = 0x00140011;
cpu->isar.id_isar1 = 0x12002111;
cpu->isar.id_isar2 = 0x11231111;
@@ -1829,9 +1829,9 @@ static void arm1176_initfn(Object *obj)
cpu->id_pfr1 = 0x11;
cpu->isar.id_dfr0 = 0x33;
cpu->id_afr0 = 0;
- cpu->id_mmfr0 = 0x01130003;
- cpu->id_mmfr1 = 0x10030302;
- cpu->id_mmfr2 = 0x01222100;
+ cpu->isar.id_mmfr0 = 0x01130003;
+ cpu->isar.id_mmfr1 = 0x10030302;
+ cpu->isar.id_mmfr2 = 0x01222100;
cpu->isar.id_isar0 = 0x0140011;
cpu->isar.id_isar1 = 0x12002111;
cpu->isar.id_isar2 = 0x11231121;
@@ -1859,9 +1859,9 @@ static void arm11mpcore_initfn(Object *obj)
cpu->id_pfr1 = 0x1;
cpu->isar.id_dfr0 = 0;
cpu->id_afr0 = 0x2;
- cpu->id_mmfr0 = 0x01100103;
- cpu->id_mmfr1 = 0x10020302;
- cpu->id_mmfr2 = 0x01222000;
+ cpu->isar.id_mmfr0 = 0x01100103;
+ cpu->isar.id_mmfr1 = 0x10020302;
+ cpu->isar.id_mmfr2 = 0x01222000;
cpu->isar.id_isar0 = 0x00100011;
cpu->isar.id_isar1 = 0x12002111;
cpu->isar.id_isar2 = 0x11221011;
@@ -1891,10 +1891,10 @@ static void cortex_m3_initfn(Object *obj)
cpu->id_pfr1 = 0x00000200;
cpu->isar.id_dfr0 = 0x00100000;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x00000030;
- cpu->id_mmfr1 = 0x00000000;
- cpu->id_mmfr2 = 0x00000000;
- cpu->id_mmfr3 = 0x00000000;
+ cpu->isar.id_mmfr0 = 0x00000030;
+ cpu->isar.id_mmfr1 = 0x00000000;
+ cpu->isar.id_mmfr2 = 0x00000000;
+ cpu->isar.id_mmfr3 = 0x00000000;
cpu->isar.id_isar0 = 0x01141110;
cpu->isar.id_isar1 = 0x02111000;
cpu->isar.id_isar2 = 0x21112231;
@@ -1922,10 +1922,10 @@ static void cortex_m4_initfn(Object *obj)
cpu->id_pfr1 = 0x00000200;
cpu->isar.id_dfr0 = 0x00100000;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x00000030;
- cpu->id_mmfr1 = 0x00000000;
- cpu->id_mmfr2 = 0x00000000;
- cpu->id_mmfr3 = 0x00000000;
+ cpu->isar.id_mmfr0 = 0x00000030;
+ cpu->isar.id_mmfr1 = 0x00000000;
+ cpu->isar.id_mmfr2 = 0x00000000;
+ cpu->isar.id_mmfr3 = 0x00000000;
cpu->isar.id_isar0 = 0x01141110;
cpu->isar.id_isar1 = 0x02111000;
cpu->isar.id_isar2 = 0x21112231;
@@ -1955,10 +1955,10 @@ static void cortex_m33_initfn(Object *obj)
cpu->id_pfr1 = 0x00000210;
cpu->isar.id_dfr0 = 0x00200000;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x00101F40;
- cpu->id_mmfr1 = 0x00000000;
- cpu->id_mmfr2 = 0x01000000;
- cpu->id_mmfr3 = 0x00000000;
+ cpu->isar.id_mmfr0 = 0x00101F40;
+ cpu->isar.id_mmfr1 = 0x00000000;
+ cpu->isar.id_mmfr2 = 0x01000000;
+ cpu->isar.id_mmfr3 = 0x00000000;
cpu->isar.id_isar0 = 0x01101110;
cpu->isar.id_isar1 = 0x02212000;
cpu->isar.id_isar2 = 0x20232232;
@@ -2006,10 +2006,10 @@ static void cortex_r5_initfn(Object *obj)
cpu->id_pfr1 = 0x001;
cpu->isar.id_dfr0 = 0x010400;
cpu->id_afr0 = 0x0;
- cpu->id_mmfr0 = 0x0210030;
- cpu->id_mmfr1 = 0x00000000;
- cpu->id_mmfr2 = 0x01200000;
- cpu->id_mmfr3 = 0x0211;
+ cpu->isar.id_mmfr0 = 0x0210030;
+ cpu->isar.id_mmfr1 = 0x00000000;
+ cpu->isar.id_mmfr2 = 0x01200000;
+ cpu->isar.id_mmfr3 = 0x0211;
cpu->isar.id_isar0 = 0x02101111;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232141;
@@ -2061,10 +2061,10 @@ static void cortex_a8_initfn(Object *obj)
cpu->id_pfr1 = 0x11;
cpu->isar.id_dfr0 = 0x400;
cpu->id_afr0 = 0;
- cpu->id_mmfr0 = 0x31100003;
- cpu->id_mmfr1 = 0x20000000;
- cpu->id_mmfr2 = 0x01202000;
- cpu->id_mmfr3 = 0x11;
+ cpu->isar.id_mmfr0 = 0x31100003;
+ cpu->isar.id_mmfr1 = 0x20000000;
+ cpu->isar.id_mmfr2 = 0x01202000;
+ cpu->isar.id_mmfr3 = 0x11;
cpu->isar.id_isar0 = 0x00101111;
cpu->isar.id_isar1 = 0x12112111;
cpu->isar.id_isar2 = 0x21232031;
@@ -2134,10 +2134,10 @@ static void cortex_a9_initfn(Object *obj)
cpu->id_pfr1 = 0x11;
cpu->isar.id_dfr0 = 0x000;
cpu->id_afr0 = 0;
- cpu->id_mmfr0 = 0x00100103;
- cpu->id_mmfr1 = 0x20000000;
- cpu->id_mmfr2 = 0x01230000;
- cpu->id_mmfr3 = 0x00002111;
+ cpu->isar.id_mmfr0 = 0x00100103;
+ cpu->isar.id_mmfr1 = 0x20000000;
+ cpu->isar.id_mmfr2 = 0x01230000;
+ cpu->isar.id_mmfr3 = 0x00002111;
cpu->isar.id_isar0 = 0x00101111;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232041;
@@ -2199,10 +2199,10 @@ static void cortex_a7_initfn(Object *obj)
cpu->id_pfr1 = 0x00011011;
cpu->isar.id_dfr0 = 0x02010555;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10101105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01240000;
- cpu->id_mmfr3 = 0x02102211;
+ cpu->isar.id_mmfr0 = 0x10101105;
+ cpu->isar.id_mmfr1 = 0x40000000;
+ cpu->isar.id_mmfr2 = 0x01240000;
+ cpu->isar.id_mmfr3 = 0x02102211;
/* a7_mpcore_r0p5_trm, page 4-4 gives 0x01101110; but
* table 4-41 gives 0x02101110, which includes the arm div insns.
*/
@@ -2245,10 +2245,10 @@ static void cortex_a15_initfn(Object *obj)
cpu->id_pfr1 = 0x00011011;
cpu->isar.id_dfr0 = 0x02010555;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10201105;
- cpu->id_mmfr1 = 0x20000000;
- cpu->id_mmfr2 = 0x01240000;
- cpu->id_mmfr3 = 0x02102211;
+ cpu->isar.id_mmfr0 = 0x10201105;
+ cpu->isar.id_mmfr1 = 0x20000000;
+ cpu->isar.id_mmfr2 = 0x01240000;
+ cpu->isar.id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232041;
@@ -2484,13 +2484,13 @@ static void arm_max_initfn(Object *obj)
t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
cpu->isar.mvfr2 = t;
- t = cpu->id_mmfr3;
+ t = cpu->isar.id_mmfr3;
t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
- cpu->id_mmfr3 = t;
+ cpu->isar.id_mmfr3 = t;
- t = cpu->id_mmfr4;
+ t = cpu->isar.id_mmfr4;
t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
- cpu->id_mmfr4 = t;
+ cpu->isar.id_mmfr4 = t;
}
#endif
}
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 3040aa40..a78c30c3 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -857,6 +857,11 @@ struct ARMCPU {
uint32_t id_isar4;
uint32_t id_isar5;
uint32_t id_isar6;
+ uint32_t id_mmfr0;
+ uint32_t id_mmfr1;
+ uint32_t id_mmfr2;
+ uint32_t id_mmfr3;
+ uint32_t id_mmfr4;
uint32_t mvfr0;
uint32_t mvfr1;
uint32_t mvfr2;
@@ -882,11 +887,6 @@ struct ARMCPU {
uint64_t pmceid0;
uint64_t pmceid1;
uint32_t id_afr0;
- uint32_t id_mmfr0;
- uint32_t id_mmfr1;
- uint32_t id_mmfr2;
- uint32_t id_mmfr3;
- uint32_t id_mmfr4;
uint64_t id_aa64afr0;
uint64_t id_aa64afr1;
uint32_t clidr;
@@ -3490,12 +3490,12 @@ static inline bool isar_feature_aa32_vminmaxnm(const ARMISARegisters *id)
static inline bool isar_feature_aa32_pan(const ARMISARegisters *id)
{
- return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) != 0;
+ return FIELD_EX32(id->id_mmfr3, ID_MMFR3, PAN) != 0;
}
static inline bool isar_feature_aa32_ats1e1(const ARMISARegisters *id)
{
- return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) >= 2;
+ return FIELD_EX32(id->id_mmfr3, ID_MMFR3, PAN) >= 2;
}
static inline bool isar_feature_aa32_pmu_8_1(const ARMISARegisters *id)
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index a0d07fd7..d450b8c8 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -125,10 +125,10 @@ static void aarch64_a57_initfn(Object *obj)
cpu->id_pfr1 = 0x00011011;
cpu->isar.id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10101105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01260000;
- cpu->id_mmfr3 = 0x02102211;
+ cpu->isar.id_mmfr0 = 0x10101105;
+ cpu->isar.id_mmfr1 = 0x40000000;
+ cpu->isar.id_mmfr2 = 0x01260000;
+ cpu->isar.id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232042;
@@ -179,10 +179,10 @@ static void aarch64_a53_initfn(Object *obj)
cpu->id_pfr1 = 0x00011011;
cpu->isar.id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10101105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01260000;
- cpu->id_mmfr3 = 0x02102211;
+ cpu->isar.id_mmfr0 = 0x10101105;
+ cpu->isar.id_mmfr1 = 0x40000000;
+ cpu->isar.id_mmfr2 = 0x01260000;
+ cpu->isar.id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232042;
@@ -233,10 +233,10 @@ static void aarch64_a72_initfn(Object *obj)
cpu->id_pfr1 = 0x00011011;
cpu->isar.id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10201105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01260000;
- cpu->id_mmfr3 = 0x02102211;
+ cpu->isar.id_mmfr0 = 0x10201105;
+ cpu->isar.id_mmfr1 = 0x40000000;
+ cpu->isar.id_mmfr2 = 0x01260000;
+ cpu->isar.id_mmfr3 = 0x02102211;
cpu->isar.id_isar0 = 0x02101110;
cpu->isar.id_isar1 = 0x13112111;
cpu->isar.id_isar2 = 0x21232042;
@@ -383,9 +383,9 @@ static void aarch64_max_initfn(Object *obj)
u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
cpu->isar.id_isar6 = u;
- u = cpu->id_mmfr3;
+ u = cpu->isar.id_mmfr3;
u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */
- cpu->id_mmfr3 = u;
+ cpu->isar.id_mmfr3 = u;
/*
* FIXME: We do not yet support ARMv8.2-fp16 for AArch32 yet,
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 60ff7c0f..49cd7a7e 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -5906,19 +5906,19 @@ void register_cp_regs_for_features(ARMCPU *cpu)
{ .name = "ID_MMFR0", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 4,
.access = PL1_R, .type = ARM_CP_CONST,
- .resetvalue = cpu->id_mmfr0 },
+ .resetvalue = cpu->isar.id_mmfr0 },
{ .name = "ID_MMFR1", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 5,
.access = PL1_R, .type = ARM_CP_CONST,
- .resetvalue = cpu->id_mmfr1 },
+ .resetvalue = cpu->isar.id_mmfr1 },
{ .name = "ID_MMFR2", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 6,
.access = PL1_R, .type = ARM_CP_CONST,
- .resetvalue = cpu->id_mmfr2 },
+ .resetvalue = cpu->isar.id_mmfr2 },
{ .name = "ID_MMFR3", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 7,
.access = PL1_R, .type = ARM_CP_CONST,
- .resetvalue = cpu->id_mmfr3 },
+ .resetvalue = cpu->isar.id_mmfr3 },
{ .name = "ID_ISAR0", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 0,
.access = PL1_R, .type = ARM_CP_CONST,
@@ -5946,7 +5946,7 @@ void register_cp_regs_for_features(ARMCPU *cpu)
{ .name = "ID_MMFR4", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 6,
.access = PL1_R, .type = ARM_CP_CONST,
- .resetvalue = cpu->id_mmfr4 },
+ .resetvalue = cpu->isar.id_mmfr4 },
{ .name = "ID_ISAR6", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 7,
.access = PL1_R, .type = ARM_CP_CONST,
@@ -6426,7 +6426,7 @@ void register_cp_regs_for_features(ARMCPU *cpu)
define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo);
define_arm_cp_regs(cpu, vmsa_cp_reginfo);
/* TTCBR2 is introduced with ARMv8.2-A32HPD. */
- if (FIELD_EX32(cpu->id_mmfr4, ID_MMFR4, HPDS) != 0) {
+ if (FIELD_EX32(cpu->isar.id_mmfr4, ID_MMFR4, HPDS) != 0) {
define_one_arm_cp_reg(cpu, &ttbcr2_reginfo);
}
}
diff --git a/target/arm/kvm32.c b/target/arm/kvm32.c
index ee158830..2247148e 100644
--- a/target/arm/kvm32.c
+++ b/target/arm/kvm32.c
@@ -104,6 +104,23 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
* Fortunately there is not yet anything in there that affects migration.
*/
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr0,
+ ARM_CP15_REG32(0, 0, 1, 4));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr1,
+ ARM_CP15_REG32(0, 0, 1, 5));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr2,
+ ARM_CP15_REG32(0, 0, 1, 6));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr3,
+ ARM_CP15_REG32(0, 0, 1, 7));
+ if (read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr4,
+ ARM_CP15_REG32(0, 0, 2, 6))) {
+ /*
+ * Older kernels don't support reading ID_MMFR4 (a new in v8
+ * register); assume it's zero.
+ */
+ ahcf->isar.id_mmfr4 = 0;
+ }
+
kvm_arm_destroy_scratch_host_vcpu(fdarray);
if (err < 0) {
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index b794108a..276d1466 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -551,6 +551,14 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
* than skipping the reads and leaving 0, as we must avoid
* considering the values in every case.
*/
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr0,
+ ARM64_SYS_REG(3, 0, 0, 1, 4));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr1,
+ ARM64_SYS_REG(3, 0, 0, 1, 5));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr2,
+ ARM64_SYS_REG(3, 0, 0, 1, 6));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr3,
+ ARM64_SYS_REG(3, 0, 0, 1, 7));
err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar0,
ARM64_SYS_REG(3, 0, 0, 2, 0));
err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar1,
@@ -563,6 +571,8 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
ARM64_SYS_REG(3, 0, 0, 2, 4));
err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar5,
ARM64_SYS_REG(3, 0, 0, 2, 5));
+ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr4,
+ ARM64_SYS_REG(3, 0, 0, 2, 6));
err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar6,
ARM64_SYS_REG(3, 0, 0, 2, 7));
--
2.25.1
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