|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH v3 1/4] xen/arm: Sync sysregs and cpuinfo with Linux 5.18-rc3
Sync existing ID registers sanitization with the status of Linux kernel
version 5.18-rc3 and add sanitization of ISAR2 registers.
Sync sysregs.h bit shift defintions with the status of Linux kernel
version 5.18-rc3.
Changes in this patch are splitted in a number of patches in Linux
kernel and, as the previous synchronisation point was not clear, the
changes are done in one patch with a status possible to compare easily
by diffing Xen files to Linux kernel files.
Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
b2d229d4ddb1
Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
Changes in v3
- add Stefano r-b
Changes in v2
- move changes in cpufeature.h in an independent patch
- add proper origin tag in the commit
- rework the commit message
---
xen/arch/arm/arm64/cpufeature.c | 18 +++++-
xen/arch/arm/include/asm/arm64/sysregs.h | 76 ++++++++++++++++++++----
2 files changed, 80 insertions(+), 14 deletions(-)
diff --git a/xen/arch/arm/arm64/cpufeature.c b/xen/arch/arm/arm64/cpufeature.c
index 6e5d30dc7b..d9039d37b2 100644
--- a/xen/arch/arm/arm64/cpufeature.c
+++ b/xen/arch/arm/arm64/cpufeature.c
@@ -143,6 +143,16 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
ARM64_FTR_END,
};
+static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_HIGHER_SAFE,
ID_AA64ISAR2_CLEARBHB_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_PTR_AUTH),
+ FTR_STRICT, FTR_EXACT, ID_AA64ISAR2_APA3_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_PTR_AUTH),
+ FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_GPA3_SHIFT, 4,
0),
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64ISAR2_RPRES_SHIFT, 4, 0),
+ ARM64_FTR_END,
+};
+
static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = {
ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_CSV3_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_CSV2_SHIFT, 4, 0),
@@ -158,8 +168,8 @@ static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = {
S_ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_FP_SHIFT, 4, ID_AA64PFR0_FP_NI),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_EL3_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_EL2_SHIFT, 4, 0),
- ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_EL1_SHIFT, 4, ID_AA64PFR0_EL1_64BIT_ONLY),
- ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_EL0_SHIFT, 4, ID_AA64PFR0_EL0_64BIT_ONLY),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_EL1_SHIFT, 4, ID_AA64PFR0_ELx_64BIT_ONLY),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE,
ID_AA64PFR0_EL0_SHIFT, 4, ID_AA64PFR0_ELx_64BIT_ONLY),
ARM64_FTR_END,
};
@@ -197,7 +207,7 @@ static const struct arm64_ftr_bits ftr_id_aa64zfr0[] = {
};
static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
- ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR0_ECV_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR0_ECV_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR0_FGT_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR0_EXS_SHIFT, 4, 0),
/*
@@ -243,6 +253,7 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
};
static const struct arm64_ftr_bits ftr_id_aa64mmfr1[] = {
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR1_AFP_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR1_ETS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR1_TWED_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE,
ID_AA64MMFR1_XNX_SHIFT, 4, 0),
@@ -588,6 +599,7 @@ void update_system_features(const struct cpuinfo_arm *new)
SANITIZE_ID_REG(isa64, 0, aa64isar0);
SANITIZE_ID_REG(isa64, 1, aa64isar1);
+ SANITIZE_ID_REG(isa64, 2, aa64isar2);
SANITIZE_ID_REG(zfr64, 0, aa64zfr0);
diff --git a/xen/arch/arm/include/asm/arm64/sysregs.h
b/xen/arch/arm/include/asm/arm64/sysregs.h
index eac08ed33f..54670084c3 100644
--- a/xen/arch/arm/include/asm/arm64/sysregs.h
+++ b/xen/arch/arm/include/asm/arm64/sysregs.h
@@ -144,6 +144,30 @@
/* id_aa64isar2 */
#define ID_AA64ISAR2_CLEARBHB_SHIFT 28
+#define ID_AA64ISAR2_APA3_SHIFT 12
+#define ID_AA64ISAR2_GPA3_SHIFT 8
+#define ID_AA64ISAR2_RPRES_SHIFT 4
+#define ID_AA64ISAR2_WFXT_SHIFT 0
+
+#define ID_AA64ISAR2_RPRES_8BIT 0x0
+#define ID_AA64ISAR2_RPRES_12BIT 0x1
+/*
+ * Value 0x1 has been removed from the architecture, and is
+ * reserved, but has not yet been removed from the ARM ARM
+ * as of ARM DDI 0487G.b.
+ */
+#define ID_AA64ISAR2_WFXT_NI 0x0
+#define ID_AA64ISAR2_WFXT_SUPPORTED 0x2
+
+#define ID_AA64ISAR2_APA3_NI 0x0
+#define ID_AA64ISAR2_APA3_ARCHITECTED 0x1
+#define ID_AA64ISAR2_APA3_ARCH_EPAC 0x2
+#define ID_AA64ISAR2_APA3_ARCH_EPAC2 0x3
+#define ID_AA64ISAR2_APA3_ARCH_EPAC2_FPAC 0x4
+#define ID_AA64ISAR2_APA3_ARCH_EPAC2_FPAC_CMB 0x5
+
+#define ID_AA64ISAR2_GPA3_NI 0x0
+#define ID_AA64ISAR2_GPA3_ARCHITECTED 0x1
/* id_aa64pfr0 */
#define ID_AA64PFR0_CSV3_SHIFT 60
@@ -165,14 +189,13 @@
#define ID_AA64PFR0_AMU 0x1
#define ID_AA64PFR0_SVE 0x1
#define ID_AA64PFR0_RAS_V1 0x1
+#define ID_AA64PFR0_RAS_V1P1 0x2
#define ID_AA64PFR0_FP_NI 0xf
#define ID_AA64PFR0_FP_SUPPORTED 0x0
#define ID_AA64PFR0_ASIMD_NI 0xf
#define ID_AA64PFR0_ASIMD_SUPPORTED 0x0
-#define ID_AA64PFR0_EL1_64BIT_ONLY 0x1
-#define ID_AA64PFR0_EL1_32BIT_64BIT 0x2
-#define ID_AA64PFR0_EL0_64BIT_ONLY 0x1
-#define ID_AA64PFR0_EL0_32BIT_64BIT 0x2
+#define ID_AA64PFR0_ELx_64BIT_ONLY 0x1
+#define ID_AA64PFR0_ELx_32BIT_64BIT 0x2
/* id_aa64pfr1 */
#define ID_AA64PFR1_MPAMFRAC_SHIFT 16
@@ -189,6 +212,7 @@
#define ID_AA64PFR1_MTE_NI 0x0
#define ID_AA64PFR1_MTE_EL0 0x1
#define ID_AA64PFR1_MTE 0x2
+#define ID_AA64PFR1_MTE_ASYMM 0x3
/* id_aa64zfr0 */
#define ID_AA64ZFR0_F64MM_SHIFT 56
@@ -228,17 +252,37 @@
#define ID_AA64MMFR0_ASID_SHIFT 4
#define ID_AA64MMFR0_PARANGE_SHIFT 0
-#define ID_AA64MMFR0_TGRAN4_NI 0xf
-#define ID_AA64MMFR0_TGRAN4_SUPPORTED 0x0
-#define ID_AA64MMFR0_TGRAN64_NI 0xf
-#define ID_AA64MMFR0_TGRAN64_SUPPORTED 0x0
-#define ID_AA64MMFR0_TGRAN16_NI 0x0
-#define ID_AA64MMFR0_TGRAN16_SUPPORTED 0x1
+#define ID_AA64MMFR0_ASID_8 0x0
+#define ID_AA64MMFR0_ASID_16 0x2
+
+#define ID_AA64MMFR0_TGRAN4_NI 0xf
+#define ID_AA64MMFR0_TGRAN4_SUPPORTED_MIN 0x0
+#define ID_AA64MMFR0_TGRAN4_SUPPORTED_MAX 0x7
+#define ID_AA64MMFR0_TGRAN64_NI 0xf
+#define ID_AA64MMFR0_TGRAN64_SUPPORTED_MIN 0x0
+#define ID_AA64MMFR0_TGRAN64_SUPPORTED_MAX 0x7
+#define ID_AA64MMFR0_TGRAN16_NI 0x0
+#define ID_AA64MMFR0_TGRAN16_SUPPORTED_MIN 0x1
+#define ID_AA64MMFR0_TGRAN16_SUPPORTED_MAX 0xf
+
+#define ID_AA64MMFR0_PARANGE_32 0x0
+#define ID_AA64MMFR0_PARANGE_36 0x1
+#define ID_AA64MMFR0_PARANGE_40 0x2
+#define ID_AA64MMFR0_PARANGE_42 0x3
+#define ID_AA64MMFR0_PARANGE_44 0x4
#define ID_AA64MMFR0_PARANGE_48 0x5
#define ID_AA64MMFR0_PARANGE_52 0x6
+#define ARM64_MIN_PARANGE_BITS 32
+
+#define ID_AA64MMFR0_TGRAN_2_SUPPORTED_DEFAULT 0x0
+#define ID_AA64MMFR0_TGRAN_2_SUPPORTED_NONE 0x1
+#define ID_AA64MMFR0_TGRAN_2_SUPPORTED_MIN 0x2
+#define ID_AA64MMFR0_TGRAN_2_SUPPORTED_MAX 0x7
+
/* id_aa64mmfr1 */
#define ID_AA64MMFR1_ECBHB_SHIFT 60
+#define ID_AA64MMFR1_AFP_SHIFT 44
#define ID_AA64MMFR1_ETS_SHIFT 36
#define ID_AA64MMFR1_TWED_SHIFT 32
#define ID_AA64MMFR1_XNX_SHIFT 28
@@ -271,6 +315,9 @@
#define ID_AA64MMFR2_CNP_SHIFT 0
/* id_aa64dfr0 */
+#define ID_AA64DFR0_MTPMU_SHIFT 48
+#define ID_AA64DFR0_TRBE_SHIFT 44
+#define ID_AA64DFR0_TRACE_FILT_SHIFT 40
#define ID_AA64DFR0_DOUBLELOCK_SHIFT 36
#define ID_AA64DFR0_PMSVER_SHIFT 32
#define ID_AA64DFR0_CTX_CMPS_SHIFT 28
@@ -284,11 +331,18 @@
#define ID_AA64DFR0_PMUVER_8_1 0x4
#define ID_AA64DFR0_PMUVER_8_4 0x5
#define ID_AA64DFR0_PMUVER_8_5 0x6
+#define ID_AA64DFR0_PMUVER_8_7 0x7
#define ID_AA64DFR0_PMUVER_IMP_DEF 0xf
+#define ID_AA64DFR0_PMSVER_8_2 0x1
+#define ID_AA64DFR0_PMSVER_8_3 0x2
+
#define ID_DFR0_PERFMON_SHIFT 24
-#define ID_DFR0_PERFMON_8_1 0x4
+#define ID_DFR0_PERFMON_8_0 0x3
+#define ID_DFR0_PERFMON_8_1 0x4
+#define ID_DFR0_PERFMON_8_4 0x5
+#define ID_DFR0_PERFMON_8_5 0x6
#define ID_ISAR4_SWP_FRAC_SHIFT 28
#define ID_ISAR4_PSR_M_SHIFT 24
--
2.25.1
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |