Merge tag 'pull-riscv-to-apply-20250704' of https://github.com/alistair23/qemu into staging

Second RISC-V PR for 10.1

* sstc extension fixes
* Fix zama16b order in isa_edata_arr
* Profile handling fixes
* Extend PMP region up to 64
* Remove capital 'Z' CPU properties
* Add missing named features
* Support atomic instruction fetch (Ziccif)
* Add max_satp_mode from host cpu
* Extend and configure PMP region count
* Fix PPN field of Translation-reponse register
* Use qemu_chr_fe_write_all() in DBCN_CONSOLE_WRITE_BYTE
* Fix fcvt.s.bf16 NaN box checking
* Avoid infinite delay of async xmit function
* Device tree reg cleanups
* Add Kunminghu CPU and platform
* Fix missing exit TB flow for ldff_trans
* Fix migration failure when aia is configured as aplic-imsic
* Fix MEPC/SEPC bit masking for IALIGN
* Add a property to set vill bit on reserved usage of vsetvli instruction
* Add Svrsw60t59b extension support

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# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65  9296 AF7C 9513 0C53 8013

* tag 'pull-riscv-to-apply-20250704' of https://github.com/alistair23/qemu: (40 commits)
  target: riscv: Add Svrsw60t59b extension support
  target/riscv: Add a property to set vill bit on reserved usage of vsetvli instruction
  tests/tcg/riscv64: Add test for MEPC bit masking
  target/riscv: Fix MEPC/SEPC bit masking for IALIGN
  migration: Fix migration failure when aia is configured as aplic-imsic
  target/riscv: rvv: Fix missing exit TB flow for ldff_trans
  hw/riscv: Initial support for BOSC's Xiangshan Kunminghu FPGA prototype
  target/riscv: Add BOSC's Xiangshan Kunminghu CPU
  hw/riscv/virt: Use setprop_sized_cells for pcie
  hw/riscv/virt: Use setprop_sized_cells for iommu
  hw/riscv/virt: Use setprop_sized_cells for rtc
  hw/riscv/virt: Use setprop_sized_cells for uart
  hw/riscv/virt: Use setprop_sized_cells for reset
  hw/riscv/virt: Use setprop_sized_cells for virtio
  hw/riscv/virt: Use setprop_sized_cells for plic
  hw/riscv/virt: Use setprop_sized_cells for aclint
  hw/riscv/virt: Use setprop_sized_cells for aplic
  hw/riscv/virt: Use setprop_sized_cells for memory
  hw/riscv/virt: Use setprop_sized_cells for clint
  hw/riscv/virt: Fix clint base address type
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

21 files changed, 665 insertions, 166 deletions

diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
index 1ee05eb393..75f4e43408 100644
--- a/target/riscv/cpu-qom.h
+++ b/target/riscv/cpu-qom.h
@@ -55,6 +55,7 @@
 #define TYPE_RISCV_CPU_VEYRON_V1        RISCV_CPU_TYPE_NAME("veyron-v1")
 #define TYPE_RISCV_CPU_TT_ASCALON       RISCV_CPU_TYPE_NAME("tt-ascalon")
 #define TYPE_RISCV_CPU_XIANGSHAN_NANHU  RISCV_CPU_TYPE_NAME("xiangshan-nanhu")
+#define TYPE_RISCV_CPU_XIANGSHAN_KMH    RISCV_CPU_TYPE_NAME("xiangshan-kunminghu")
 #define TYPE_RISCV_CPU_HOST             RISCV_CPU_TYPE_NAME("host")
 
 OBJECT_DECLARE_CPU_TYPE(RISCVCPU, RISCVCPUClass, RISCV_CPU)
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 629ac37501..d055ddf462 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -127,8 +127,8 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(zaamo, PRIV_VERSION_1_12_0, ext_zaamo),
     ISA_EXT_DATA_ENTRY(zabha, PRIV_VERSION_1_13_0, ext_zabha),
     ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas),
-    ISA_EXT_DATA_ENTRY(zama16b, PRIV_VERSION_1_13_0, ext_zama16b),
     ISA_EXT_DATA_ENTRY(zalrsc, PRIV_VERSION_1_12_0, ext_zalrsc),
+    ISA_EXT_DATA_ENTRY(zama16b, PRIV_VERSION_1_13_0, ext_zama16b),
     ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs),
     ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa),
     ISA_EXT_DATA_ENTRY(zfbfmin, PRIV_VERSION_1_12_0, ext_zfbfmin),
@@ -189,6 +189,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(zvkt, PRIV_VERSION_1_12_0, ext_zvkt),
     ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx),
     ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin),
+    ISA_EXT_DATA_ENTRY(sdtrig, PRIV_VERSION_1_12_0, debug),
     ISA_EXT_DATA_ENTRY(shcounterenw, PRIV_VERSION_1_12_0, has_priv_1_12),
     ISA_EXT_DATA_ENTRY(sha, PRIV_VERSION_1_12_0, ext_sha),
     ISA_EXT_DATA_ENTRY(shgatpa, PRIV_VERSION_1_12_0, has_priv_1_12),
@@ -216,6 +217,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(ssnpm, PRIV_VERSION_1_13_0, ext_ssnpm),
     ISA_EXT_DATA_ENTRY(sspm, PRIV_VERSION_1_13_0, ext_sspm),
     ISA_EXT_DATA_ENTRY(ssstateen, PRIV_VERSION_1_12_0, ext_ssstateen),
+    ISA_EXT_DATA_ENTRY(ssstrict, PRIV_VERSION_1_12_0, has_priv_1_12),
     ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc),
     ISA_EXT_DATA_ENTRY(sstvala, PRIV_VERSION_1_12_0, has_priv_1_12),
     ISA_EXT_DATA_ENTRY(sstvecd, PRIV_VERSION_1_12_0, has_priv_1_12),
@@ -228,6 +230,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval),
     ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot),
     ISA_EXT_DATA_ENTRY(svpbmt, PRIV_VERSION_1_12_0, ext_svpbmt),
+    ISA_EXT_DATA_ENTRY(svrsw60t59b, PRIV_VERSION_1_13_0, ext_svrsw60t59b),
     ISA_EXT_DATA_ENTRY(svukte, PRIV_VERSION_1_13_0, ext_svukte),
     ISA_EXT_DATA_ENTRY(svvptc, PRIV_VERSION_1_13_0, ext_svvptc),
     ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba),
@@ -1117,6 +1120,7 @@ static void riscv_cpu_init(Object *obj)
     cpu->cfg.cbom_blocksize = 64;
     cpu->cfg.cbop_blocksize = 64;
     cpu->cfg.cboz_blocksize = 64;
+    cpu->cfg.pmp_regions = 16;
     cpu->env.vext_ver = VEXT_VERSION_1_00_0;
     cpu->cfg.max_satp_mode = -1;
 
@@ -1282,6 +1286,7 @@ const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = {
     MULTI_EXT_CFG_BOOL("svinval", ext_svinval, false),
     MULTI_EXT_CFG_BOOL("svnapot", ext_svnapot, false),
     MULTI_EXT_CFG_BOOL("svpbmt", ext_svpbmt, false),
+    MULTI_EXT_CFG_BOOL("svrsw60t59b", ext_svrsw60t59b, false),
     MULTI_EXT_CFG_BOOL("svvptc", ext_svvptc, true),
 
     MULTI_EXT_CFG_BOOL("zicntr", ext_zicntr, true),
@@ -1375,31 +1380,24 @@ const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = {
  * 'Named features' is the name we give to extensions that we
  * don't want to expose to users. They are either immutable
  * (always enabled/disable) or they'll vary depending on
- * the resulting CPU state. They have riscv,isa strings
- * and priv_ver like regular extensions.
+ * the resulting CPU state.
+ *
+ * Some of them are always enabled depending on priv version
+ * of the CPU and are declared directly in isa_edata_arr[].
+ * The ones listed here have special checks during finalize()
+ * time and require their own flags like regular extensions.
+ * See riscv_cpu_update_named_features() for more info.
  */
 const RISCVCPUMultiExtConfig riscv_cpu_named_features[] = {
     MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true),
     MULTI_EXT_CFG_BOOL("ssstateen", ext_ssstateen, true),
     MULTI_EXT_CFG_BOOL("sha", ext_sha, true),
-    MULTI_EXT_CFG_BOOL("ziccrse", ext_ziccrse, true),
 
-    { },
-};
-
-/* Deprecated entries marked for future removal */
-const RISCVCPUMultiExtConfig riscv_cpu_deprecated_exts[] = {
-    MULTI_EXT_CFG_BOOL("Zifencei", ext_zifencei, true),
-    MULTI_EXT_CFG_BOOL("Zicsr", ext_zicsr, true),
-    MULTI_EXT_CFG_BOOL("Zihintntl", ext_zihintntl, true),
-    MULTI_EXT_CFG_BOOL("Zihintpause", ext_zihintpause, true),
-    MULTI_EXT_CFG_BOOL("Zawrs", ext_zawrs, true),
-    MULTI_EXT_CFG_BOOL("Zfa", ext_zfa, true),
-    MULTI_EXT_CFG_BOOL("Zfh", ext_zfh, false),
-    MULTI_EXT_CFG_BOOL("Zfhmin", ext_zfhmin, false),
-    MULTI_EXT_CFG_BOOL("Zve32f", ext_zve32f, false),
-    MULTI_EXT_CFG_BOOL("Zve64f", ext_zve64f, false),
-    MULTI_EXT_CFG_BOOL("Zve64d", ext_zve64d, false),
+    /*
+     * 'ziccrse' has its own flag because the KVM driver
+     * wants to enable/disable it on its own accord.
+     */
+    MULTI_EXT_CFG_BOOL("ziccrse", ext_ziccrse, true),
 
     { },
 };
@@ -1568,6 +1566,46 @@ static const PropertyInfo prop_pmp = {
     .set = prop_pmp_set,
 };
 
+static void prop_num_pmp_regions_set(Object *obj, Visitor *v, const char *name,
+                                     void *opaque, Error **errp)
+{
+    RISCVCPU *cpu = RISCV_CPU(obj);
+    uint8_t value;
+
+    visit_type_uint8(v, name, &value, errp);
+
+    if (cpu->cfg.pmp_regions != value && riscv_cpu_is_vendor(obj)) {
+        cpu_set_prop_err(cpu, name, errp);
+        return;
+    }
+
+    if (cpu->env.priv_ver < PRIV_VERSION_1_12_0 && value > OLD_MAX_RISCV_PMPS) {
+        error_setg(errp, "Number of PMP regions exceeds maximum available");
+        return;
+    } else if (value > MAX_RISCV_PMPS) {
+        error_setg(errp, "Number of PMP regions exceeds maximum available");
+        return;
+    }
+
+    cpu_option_add_user_setting(name, value);
+    cpu->cfg.pmp_regions = value;
+}
+
+static void prop_num_pmp_regions_get(Object *obj, Visitor *v, const char *name,
+                                     void *opaque, Error **errp)
+{
+    uint8_t value = RISCV_CPU(obj)->cfg.pmp_regions;
+
+    visit_type_uint8(v, name, &value, errp);
+}
+
+static const PropertyInfo prop_num_pmp_regions = {
+    .type = "uint8",
+    .description = "num-pmp-regions",
+    .get = prop_num_pmp_regions_get,
+    .set = prop_num_pmp_regions_set,
+};
+
 static int priv_spec_from_str(const char *priv_spec_str)
 {
     int priv_version = -1;
@@ -2567,6 +2605,7 @@ static const Property riscv_cpu_properties[] = {
 
     {.name = "mmu", .info = &prop_mmu},
     {.name = "pmp", .info = &prop_pmp},
+    {.name = "num-pmp-regions", .info = &prop_num_pmp_regions},
 
     {.name = "priv_spec", .info = &prop_priv_spec},
     {.name = "vext_spec", .info = &prop_vext_spec},
@@ -2595,6 +2634,7 @@ static const Property riscv_cpu_properties[] = {
     DEFINE_PROP_BOOL("rvv_ta_all_1s", RISCVCPU, cfg.rvv_ta_all_1s, false),
     DEFINE_PROP_BOOL("rvv_ma_all_1s", RISCVCPU, cfg.rvv_ma_all_1s, false),
     DEFINE_PROP_BOOL("rvv_vl_half_avl", RISCVCPU, cfg.rvv_vl_half_avl, false),
+    DEFINE_PROP_BOOL("rvv_vsetvl_x0_vill", RISCVCPU, cfg.rvv_vsetvl_x0_vill, false),
 
     /*
      * write_misa() is marked as experimental for now so mark
@@ -2937,7 +2977,8 @@ static const TypeInfo riscv_cpu_type_infos[] = {
         .cfg.max_satp_mode = VM_1_10_MBARE,
         .cfg.ext_zifencei = true,
         .cfg.ext_zicsr = true,
-        .cfg.pmp = true
+        .cfg.pmp = true,
+        .cfg.pmp_regions = 8
     ),
 
     DEFINE_ABSTRACT_RISCV_CPU(TYPE_RISCV_CPU_SIFIVE_U, TYPE_RISCV_VENDOR_CPU,
@@ -2948,7 +2989,8 @@ static const TypeInfo riscv_cpu_type_infos[] = {
         .cfg.ext_zifencei = true,
         .cfg.ext_zicsr = true,
         .cfg.mmu = true,
-        .cfg.pmp = true
+        .cfg.pmp = true,
+        .cfg.pmp_regions = 8
     ),
 
 #if defined(TARGET_RISCV32) || \
@@ -3167,6 +3209,64 @@ static const TypeInfo riscv_cpu_type_infos[] = {
         .cfg.max_satp_mode = VM_1_10_SV39,
     ),
 
+    DEFINE_RISCV_CPU(TYPE_RISCV_CPU_XIANGSHAN_KMH, TYPE_RISCV_VENDOR_CPU,
+        .misa_mxl_max = MXL_RV64,
+        .misa_ext = RVG | RVC | RVB | RVS | RVU | RVH | RVV,
+        .priv_spec = PRIV_VERSION_1_13_0,
+    /*
+     * The RISC-V Instruction Set Manual: Volume I
+     * Unprivileged Architecture
+     */
+    .cfg.ext_zicntr = true,
+    .cfg.ext_zihpm = true,
+    .cfg.ext_zihintntl = true,
+    .cfg.ext_zihintpause = true,
+    .cfg.ext_zimop = true,
+    .cfg.ext_zcmop = true,
+    .cfg.ext_zicond = true,
+    .cfg.ext_zawrs = true,
+    .cfg.ext_zacas = true,
+    .cfg.ext_zfh = true,
+    .cfg.ext_zfa = true,
+    .cfg.ext_zcb = true,
+    .cfg.ext_zbc = true,
+    .cfg.ext_zvfh = true,
+    .cfg.ext_zkn = true,
+    .cfg.ext_zks = true,
+    .cfg.ext_zkt = true,
+    .cfg.ext_zvbb = true,
+    .cfg.ext_zvkt = true,
+    /*
+     * The RISC-V Instruction Set Manual: Volume II
+     * Privileged Architecture
+     */
+    .cfg.ext_smstateen = true,
+    .cfg.ext_smcsrind = true,
+    .cfg.ext_sscsrind = true,
+    .cfg.ext_svnapot = true,
+    .cfg.ext_svpbmt = true,
+    .cfg.ext_svinval = true,
+    .cfg.ext_sstc = true,
+    .cfg.ext_sscofpmf = true,
+    .cfg.ext_ssdbltrp = true,
+    .cfg.ext_ssnpm = true,
+    .cfg.ext_smnpm = true,
+    .cfg.ext_smmpm = true,
+    .cfg.ext_sspm = true,
+    .cfg.ext_supm = true,
+    /* The RISC-V Advanced Interrupt Architecture */
+    .cfg.ext_smaia = true,
+    .cfg.ext_ssaia = true,
+    /* RVA23 Profiles */
+    .cfg.ext_zicbom = true,
+    .cfg.ext_zicbop = true,
+    .cfg.ext_zicboz = true,
+    .cfg.ext_svade = true,
+        .cfg.mmu = true,
+        .cfg.pmp = true,
+        .cfg.max_satp_mode = VM_1_10_SV48,
+    ),
+
 #if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY)
     DEFINE_RISCV_CPU(TYPE_RISCV_CPU_BASE128, TYPE_RISCV_DYNAMIC_CPU,
         .cfg.max_satp_mode = VM_1_10_SV57,
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 229ade9ed9..4a862da615 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -82,7 +82,22 @@ typedef struct riscv_cpu_profile {
     struct riscv_cpu_profile *s_parent;
     const char *name;
     uint32_t misa_ext;
+    /*
+     * The profile is enabled/disabled via command line or
+     * via cpu_init(). Enabling a profile will add all its
+     * mandatory extensions in the CPU during init().
+     */
     bool enabled;
+    /*
+     * The profile is present in the CPU, i.e. the current set of
+     * CPU extensions complies with it. A profile can be enabled
+     * and not present (e.g. the user disabled a mandatory extension)
+     * and the other way around (e.g. all mandatory extensions are
+     * present in a non-profile CPU).
+     *
+     * QMP uses this flag.
+     */
+    bool present;
     bool user_set;
     int priv_spec;
     int satp_mode;
@@ -159,7 +174,8 @@ extern RISCVCPUImpliedExtsRule *riscv_multi_ext_implied_rules[];
 
 #define MMU_USER_IDX 3
 
-#define MAX_RISCV_PMPS (16)
+#define MAX_RISCV_PMPS (64)
+#define OLD_MAX_RISCV_PMPS (16)
 
 #if !defined(CONFIG_USER_ONLY)
 #include "pmp.h"
@@ -936,7 +952,6 @@ extern const RISCVCPUMultiExtConfig riscv_cpu_extensions[];
 extern const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[];
 extern const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[];
 extern const RISCVCPUMultiExtConfig riscv_cpu_named_features[];
-extern const RISCVCPUMultiExtConfig riscv_cpu_deprecated_exts[];
 
 typedef struct isa_ext_data {
     const char *name;
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h
index a30317c617..b62dd82fe7 100644
--- a/target/riscv/cpu_bits.h
+++ b/target/riscv/cpu_bits.h
@@ -372,6 +372,18 @@
 #define CSR_PMPCFG1         0x3a1
 #define CSR_PMPCFG2         0x3a2
 #define CSR_PMPCFG3         0x3a3
+#define CSR_PMPCFG4         0x3a4
+#define CSR_PMPCFG5         0x3a5
+#define CSR_PMPCFG6         0x3a6
+#define CSR_PMPCFG7         0x3a7
+#define CSR_PMPCFG8         0x3a8
+#define CSR_PMPCFG9         0x3a9
+#define CSR_PMPCFG10        0x3aa
+#define CSR_PMPCFG11        0x3ab
+#define CSR_PMPCFG12        0x3ac
+#define CSR_PMPCFG13        0x3ad
+#define CSR_PMPCFG14        0x3ae
+#define CSR_PMPCFG15        0x3af
 #define CSR_PMPADDR0        0x3b0
 #define CSR_PMPADDR1        0x3b1
 #define CSR_PMPADDR2        0x3b2
@@ -388,6 +400,54 @@
 #define CSR_PMPADDR13       0x3bd
 #define CSR_PMPADDR14       0x3be
 #define CSR_PMPADDR15       0x3bf
+#define CSR_PMPADDR16       0x3c0
+#define CSR_PMPADDR17       0x3c1
+#define CSR_PMPADDR18       0x3c2
+#define CSR_PMPADDR19       0x3c3
+#define CSR_PMPADDR20       0x3c4
+#define CSR_PMPADDR21       0x3c5
+#define CSR_PMPADDR22       0x3c6
+#define CSR_PMPADDR23       0x3c7
+#define CSR_PMPADDR24       0x3c8
+#define CSR_PMPADDR25       0x3c9
+#define CSR_PMPADDR26       0x3ca
+#define CSR_PMPADDR27       0x3cb
+#define CSR_PMPADDR28       0x3cc
+#define CSR_PMPADDR29       0x3cd
+#define CSR_PMPADDR30       0x3ce
+#define CSR_PMPADDR31       0x3cf
+#define CSR_PMPADDR32       0x3d0
+#define CSR_PMPADDR33       0x3d1
+#define CSR_PMPADDR34       0x3d2
+#define CSR_PMPADDR35       0x3d3
+#define CSR_PMPADDR36       0x3d4
+#define CSR_PMPADDR37       0x3d5
+#define CSR_PMPADDR38       0x3d6
+#define CSR_PMPADDR39       0x3d7
+#define CSR_PMPADDR40       0x3d8
+#define CSR_PMPADDR41       0x3d9
+#define CSR_PMPADDR42       0x3da
+#define CSR_PMPADDR43       0x3db
+#define CSR_PMPADDR44       0x3dc
+#define CSR_PMPADDR45       0x3dd
+#define CSR_PMPADDR46       0x3de
+#define CSR_PMPADDR47       0x3df
+#define CSR_PMPADDR48       0x3e0
+#define CSR_PMPADDR49       0x3e1
+#define CSR_PMPADDR50       0x3e2
+#define CSR_PMPADDR51       0x3e3
+#define CSR_PMPADDR52       0x3e4
+#define CSR_PMPADDR53       0x3e5
+#define CSR_PMPADDR54       0x3e6
+#define CSR_PMPADDR55       0x3e7
+#define CSR_PMPADDR56       0x3e8
+#define CSR_PMPADDR57       0x3e9
+#define CSR_PMPADDR58       0x3ea
+#define CSR_PMPADDR59       0x3eb
+#define CSR_PMPADDR60       0x3ec
+#define CSR_PMPADDR61       0x3ed
+#define CSR_PMPADDR62       0x3ee
+#define CSR_PMPADDR63       0x3ef
 
 /* RNMI */
 #define CSR_MNSCRATCH       0x740
@@ -675,7 +735,8 @@ typedef enum {
 #define PTE_SOFT            0x300 /* Reserved for Software */
 #define PTE_PBMT            0x6000000000000000ULL /* Page-based memory types */
 #define PTE_N               0x8000000000000000ULL /* NAPOT translation */
-#define PTE_RESERVED        0x1FC0000000000000ULL /* Reserved bits */
+#define PTE_RESERVED(svrsw60t59b)    \
+    (svrsw60t59b ? 0x07C0000000000000ULL : 0x1FC0000000000000ULL) /* Reserved bits */
 #define PTE_ATTR            (PTE_N | PTE_PBMT) /* All attributes bits */
 
 /* Page table PPN shift amount */
diff --git a/target/riscv/cpu_cfg_fields.h.inc b/target/riscv/cpu_cfg_fields.h.inc
index 59f134a419..e2d116f0df 100644
--- a/target/riscv/cpu_cfg_fields.h.inc
+++ b/target/riscv/cpu_cfg_fields.h.inc
@@ -57,6 +57,7 @@ BOOL_FIELD(ext_svadu)
 BOOL_FIELD(ext_svinval)
 BOOL_FIELD(ext_svnapot)
 BOOL_FIELD(ext_svpbmt)
+BOOL_FIELD(ext_svrsw60t59b)
 BOOL_FIELD(ext_svvptc)
 BOOL_FIELD(ext_svukte)
 BOOL_FIELD(ext_zdinx)
@@ -114,6 +115,7 @@ BOOL_FIELD(ext_supm)
 BOOL_FIELD(rvv_ta_all_1s)
 BOOL_FIELD(rvv_ma_all_1s)
 BOOL_FIELD(rvv_vl_half_avl)
+BOOL_FIELD(rvv_vsetvl_x0_vill)
 /* Named features  */
 BOOL_FIELD(ext_svade)
 BOOL_FIELD(ext_zic64b)
@@ -163,6 +165,7 @@ TYPED_FIELD(uint16_t, elen, 0)
 TYPED_FIELD(uint16_t, cbom_blocksize, 0)
 TYPED_FIELD(uint16_t, cbop_blocksize, 0)
 TYPED_FIELD(uint16_t, cboz_blocksize, 0)
+TYPED_FIELD(uint8_t,  pmp_regions, 0)
 
 TYPED_FIELD(int8_t, max_satp_mode, -1)
 
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 2ed69d7c2d..3479a62cc7 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -1309,6 +1309,7 @@ static int get_physical_address(CPURISCVState *env, hwaddr *physical,
     bool svade = riscv_cpu_cfg(env)->ext_svade;
     bool svadu = riscv_cpu_cfg(env)->ext_svadu;
     bool adue = svadu ? env->menvcfg & MENVCFG_ADUE : !svade;
+    bool svrsw60t59b = riscv_cpu_cfg(env)->ext_svrsw60t59b;
 
     if (first_stage && two_stage && env->virt_enabled) {
         pbmte = pbmte && (env->henvcfg & HENVCFG_PBMTE);
@@ -1376,7 +1377,7 @@ static int get_physical_address(CPURISCVState *env, hwaddr *physical,
         if (riscv_cpu_sxl(env) == MXL_RV32) {
             ppn = pte >> PTE_PPN_SHIFT;
         } else {
-            if (pte & PTE_RESERVED) {
+            if (pte & PTE_RESERVED(svrsw60t59b)) {
                 qemu_log_mask(LOG_GUEST_ERROR, "%s: reserved bits set in PTE: "
                               "addr: 0x%" HWADDR_PRIx " pte: 0x" TARGET_FMT_lx "\n",
                               __func__, pte_addr, pte);
diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index fb14972169..8631be97c5 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -738,7 +738,10 @@ static RISCVException dbltrp_hmode(CPURISCVState *env, int csrno)
 static RISCVException pmp(CPURISCVState *env, int csrno)
 {
     if (riscv_cpu_cfg(env)->pmp) {
-        if (csrno <= CSR_PMPCFG3) {
+        int max_pmpcfg = (env->priv_ver >= PRIV_VERSION_1_12_0) ?
++                              CSR_PMPCFG15 : CSR_PMPCFG3;
+
+        if (csrno <= max_pmpcfg) {
             uint32_t reg_index = csrno - CSR_PMPCFG0;
 
             /* TODO: RV128 restriction check */
@@ -3126,14 +3129,14 @@ static RISCVException write_mscratch(CPURISCVState *env, int csrno,
 static RISCVException read_mepc(CPURISCVState *env, int csrno,
                                 target_ulong *val)
 {
-    *val = env->mepc;
+    *val = env->mepc & get_xepc_mask(env);
     return RISCV_EXCP_NONE;
 }
 
 static RISCVException write_mepc(CPURISCVState *env, int csrno,
                                  target_ulong val, uintptr_t ra)
 {
-    env->mepc = val;
+    env->mepc = val & get_xepc_mask(env);
     return RISCV_EXCP_NONE;
 }
 
@@ -3181,6 +3184,7 @@ static RISCVException write_menvcfg(CPURISCVState *env, int csrno,
     const RISCVCPUConfig *cfg = riscv_cpu_cfg(env);
     uint64_t mask = MENVCFG_FIOM | MENVCFG_CBIE | MENVCFG_CBCFE |
                     MENVCFG_CBZE | MENVCFG_CDE;
+    bool stce_changed = false;
 
     if (riscv_cpu_mxl(env) == MXL_RV64) {
         mask |= (cfg->ext_svpbmt ? MENVCFG_PBMTE : 0) |
@@ -3206,8 +3210,18 @@ static RISCVException write_menvcfg(CPURISCVState *env, int csrno,
         if ((val & MENVCFG_DTE) == 0) {
             env->mstatus &= ~MSTATUS_SDT;
         }
+
+        if (cfg->ext_sstc &&
+            ((env->menvcfg & MENVCFG_STCE) != (val & MENVCFG_STCE))) {
+            stce_changed = true;
+        }
     }
     env->menvcfg = (env->menvcfg & ~mask) | (val & mask);
+
+    if (stce_changed) {
+        riscv_timer_stce_changed(env, true, !!(val & MENVCFG_STCE));
+    }
+
     return write_henvcfg(env, CSR_HENVCFG, env->henvcfg, ra);
 }
 
@@ -3230,12 +3244,23 @@ static RISCVException write_menvcfgh(CPURISCVState *env, int csrno,
                     (cfg->ext_smcdeleg ? MENVCFG_CDE : 0) |
                     (cfg->ext_ssdbltrp ? MENVCFG_DTE : 0);
     uint64_t valh = (uint64_t)val << 32;
+    bool stce_changed = false;
+
+    if (cfg->ext_sstc &&
+        ((env->menvcfg & MENVCFG_STCE) != (valh & MENVCFG_STCE))) {
+        stce_changed = true;
+    }
 
     if ((valh & MENVCFG_DTE) == 0) {
         env->mstatus &= ~MSTATUS_SDT;
     }
 
     env->menvcfg = (env->menvcfg & ~mask) | (valh & mask);
+
+    if (stce_changed) {
+        riscv_timer_stce_changed(env, true, !!(valh & MENVCFG_STCE));
+    }
+
     return write_henvcfgh(env, CSR_HENVCFGH, env->henvcfg >> 32, ra);
 }
 
@@ -3313,8 +3338,10 @@ static RISCVException read_henvcfg(CPURISCVState *env, int csrno,
 static RISCVException write_henvcfg(CPURISCVState *env, int csrno,
                                     target_ulong val, uintptr_t ra)
 {
+    const RISCVCPUConfig *cfg = riscv_cpu_cfg(env);
     uint64_t mask = HENVCFG_FIOM | HENVCFG_CBIE | HENVCFG_CBCFE | HENVCFG_CBZE;
     RISCVException ret;
+    bool stce_changed = false;
 
     ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG);
     if (ret != RISCV_EXCP_NONE) {
@@ -3340,6 +3367,11 @@ static RISCVException write_henvcfg(CPURISCVState *env, int csrno,
             get_field(val, HENVCFG_PMM) != PMM_FIELD_RESERVED) {
             mask |= HENVCFG_PMM;
         }
+
+        if (cfg->ext_sstc &&
+            ((env->henvcfg & HENVCFG_STCE) != (val & HENVCFG_STCE))) {
+            stce_changed = true;
+        }
     }
 
     env->henvcfg = val & mask;
@@ -3347,6 +3379,10 @@ static RISCVException write_henvcfg(CPURISCVState *env, int csrno,
         env->vsstatus &= ~MSTATUS_SDT;
     }
 
+    if (stce_changed) {
+        riscv_timer_stce_changed(env, false, !!(val & HENVCFG_STCE));
+    }
+
     return RISCV_EXCP_NONE;
 }
 
@@ -3368,19 +3404,32 @@ static RISCVException read_henvcfgh(CPURISCVState *env, int csrno,
 static RISCVException write_henvcfgh(CPURISCVState *env, int csrno,
                                      target_ulong val, uintptr_t ra)
 {
+    const RISCVCPUConfig *cfg = riscv_cpu_cfg(env);
     uint64_t mask = env->menvcfg & (HENVCFG_PBMTE | HENVCFG_STCE |
                                     HENVCFG_ADUE | HENVCFG_DTE);
     uint64_t valh = (uint64_t)val << 32;
     RISCVException ret;
+    bool stce_changed = false;
 
     ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG);
     if (ret != RISCV_EXCP_NONE) {
         return ret;
     }
+
+    if (cfg->ext_sstc &&
+        ((env->henvcfg & HENVCFG_STCE) != (valh & HENVCFG_STCE))) {
+        stce_changed = true;
+    }
+
     env->henvcfg = (env->henvcfg & 0xFFFFFFFF) | (valh & mask);
     if ((env->henvcfg & HENVCFG_DTE) == 0) {
         env->vsstatus &= ~MSTATUS_SDT;
     }
+
+    if (stce_changed) {
+        riscv_timer_stce_changed(env, false, !!(val & HENVCFG_STCE));
+    }
+
     return RISCV_EXCP_NONE;
 }
 
@@ -3651,7 +3700,14 @@ static RISCVException rmw_mip64(CPURISCVState *env, int csrno,
     if (riscv_cpu_cfg(env)->ext_sstc && (env->priv == PRV_M) &&
         get_field(env->menvcfg, MENVCFG_STCE)) {
         /* sstc extension forbids STIP & VSTIP to be writeable in mip */
-        mask = mask & ~(MIP_STIP | MIP_VSTIP);
+
+        /* STIP is not writable when menvcfg.STCE is enabled. */
+        mask = mask & ~MIP_STIP;
+
+        /* VSTIP is not writable when both [mh]envcfg.STCE are enabled. */
+        if (get_field(env->henvcfg, HENVCFG_STCE)) {
+            mask = mask & ~MIP_VSTIP;
+        }
     }
 
     if (mask) {
@@ -4113,14 +4169,14 @@ static RISCVException write_sscratch(CPURISCVState *env, int csrno,
 static RISCVException read_sepc(CPURISCVState *env, int csrno,
                                 target_ulong *val)
 {
-    *val = env->sepc;
+    *val = env->sepc & get_xepc_mask(env);
     return RISCV_EXCP_NONE;
 }
 
 static RISCVException write_sepc(CPURISCVState *env, int csrno,
                                  target_ulong val, uintptr_t ra)
 {
-    env->sepc = val;
+    env->sepc = val & get_xepc_mask(env);
     return RISCV_EXCP_NONE;
 }
 
@@ -6111,6 +6167,30 @@ riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
     [CSR_PMPCFG1]    = { "pmpcfg1",   pmp, read_pmpcfg,  write_pmpcfg  },
     [CSR_PMPCFG2]    = { "pmpcfg2",   pmp, read_pmpcfg,  write_pmpcfg  },
     [CSR_PMPCFG3]    = { "pmpcfg3",   pmp, read_pmpcfg,  write_pmpcfg  },
+    [CSR_PMPCFG4]    = { "pmpcfg4",   pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG5]    = { "pmpcfg5",   pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG6]    = { "pmpcfg6",   pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG7]    = { "pmpcfg7",   pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG8]    = { "pmpcfg8",   pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG9]    = { "pmpcfg9",   pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG10]   = { "pmpcfg10",  pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG11]   = { "pmpcfg11",  pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG12]   = { "pmpcfg12",  pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG13]   = { "pmpcfg13",  pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG14]   = { "pmpcfg14",  pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPCFG15]   = { "pmpcfg15",  pmp, read_pmpcfg,  write_pmpcfg,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
     [CSR_PMPADDR0]   = { "pmpaddr0",  pmp, read_pmpaddr, write_pmpaddr },
     [CSR_PMPADDR1]   = { "pmpaddr1",  pmp, read_pmpaddr, write_pmpaddr },
     [CSR_PMPADDR2]   = { "pmpaddr2",  pmp, read_pmpaddr, write_pmpaddr },
@@ -6125,8 +6205,104 @@ riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
     [CSR_PMPADDR11]  = { "pmpaddr11", pmp, read_pmpaddr, write_pmpaddr },
     [CSR_PMPADDR12]  = { "pmpaddr12", pmp, read_pmpaddr, write_pmpaddr },
     [CSR_PMPADDR13]  = { "pmpaddr13", pmp, read_pmpaddr, write_pmpaddr },
-    [CSR_PMPADDR14] =  { "pmpaddr14", pmp, read_pmpaddr, write_pmpaddr },
-    [CSR_PMPADDR15] =  { "pmpaddr15", pmp, read_pmpaddr, write_pmpaddr },
+    [CSR_PMPADDR14]  = { "pmpaddr14", pmp, read_pmpaddr, write_pmpaddr },
+    [CSR_PMPADDR15]  = { "pmpaddr15", pmp, read_pmpaddr, write_pmpaddr },
+    [CSR_PMPADDR16]  = { "pmpaddr16", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR17]  = { "pmpaddr17", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR18]  = { "pmpaddr18", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR19]  = { "pmpaddr19", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR20]  = { "pmpaddr20", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR21]  = { "pmpaddr21", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR22]  = { "pmpaddr22", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR23]  = { "pmpaddr23", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR24]  = { "pmpaddr24", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR25]  = { "pmpaddr25", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR26]  = { "pmpaddr26", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR27]  = { "pmpaddr27", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR28]  = { "pmpaddr28", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR29]  = { "pmpaddr29", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR30]  = { "pmpaddr30", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR31]  = { "pmpaddr31", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR32]  = { "pmpaddr32", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR33]  = { "pmpaddr33", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR34]  = { "pmpaddr34", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR35]  = { "pmpaddr35", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR36]  = { "pmpaddr36", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR37]  = { "pmpaddr37", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR38]  = { "pmpaddr38", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR39]  = { "pmpaddr39", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR40]  = { "pmpaddr40", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR41]  = { "pmpaddr41", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR42]  = { "pmpaddr42", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR43]  = { "pmpaddr43", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR44]  = { "pmpaddr44", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR45]  = { "pmpaddr45", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR46]  = { "pmpaddr46", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR47]  = { "pmpaddr47", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR48]  = { "pmpaddr48", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR49]  = { "pmpaddr49", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR50]  = { "pmpaddr50", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR51]  = { "pmpaddr51", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR52]  = { "pmpaddr52", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR53]  = { "pmpaddr53", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR54]  = { "pmpaddr54", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR55]  = { "pmpaddr55", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR56]  = { "pmpaddr56", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR57]  = { "pmpaddr57", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR58]  = { "pmpaddr58", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR59]  = { "pmpaddr59", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR60]  = { "pmpaddr60", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR61]  = { "pmpaddr61", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR62]  = { "pmpaddr62", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
+    [CSR_PMPADDR63]  = { "pmpaddr63", pmp, read_pmpaddr, write_pmpaddr,
+                         .min_priv_ver = PRIV_VERSION_1_12_0           },
 
     /* Debug CSRs */
     [CSR_TSELECT]   =  { "tselect",  debug, read_tselect,  write_tselect  },
diff --git a/target/riscv/fpu_helper.c b/target/riscv/fpu_helper.c
index 706bdfa61d..af40561b31 100644
--- a/target/riscv/fpu_helper.c
+++ b/target/riscv/fpu_helper.c
@@ -755,6 +755,6 @@ uint64_t helper_fcvt_bf16_s(CPURISCVState *env, uint64_t rs1)
 
 uint64_t helper_fcvt_s_bf16(CPURISCVState *env, uint64_t rs1)
 {
-    float16 frs1 = check_nanbox_h(env, rs1);
+    float16 frs1 = check_nanbox_bf16(env, rs1);
     return nanbox_s(env, bfloat16_to_float32(frs1, &env->fp_status));
 }
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 85d73e492d..f712b1c368 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -159,7 +159,7 @@ DEF_HELPER_FLAGS_3(hyp_hsv_d, TCG_CALL_NO_WG, void, env, tl, tl)
 #endif
 
 /* Vector functions */
-DEF_HELPER_3(vsetvl, tl, env, tl, tl)
+DEF_HELPER_4(vsetvl, tl, env, tl, tl, tl)
 DEF_HELPER_5(vle8_v, void, ptr, ptr, tl, env, i32)
 DEF_HELPER_5(vle16_v, void, ptr, ptr, tl, env, i32)
 DEF_HELPER_5(vle32_v, void, ptr, ptr, tl, env, i32)
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index 2b6077ac06..610bf9ff30 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -202,7 +202,7 @@ static bool do_vsetvl(DisasContext *s, int rd, int rs1, TCGv s2)
         s1 = get_gpr(s, rs1, EXT_ZERO);
     }
 
-    gen_helper_vsetvl(dst, tcg_env, s1, s2);
+    gen_helper_vsetvl(dst, tcg_env, s1, s2, tcg_constant_tl((int) (rd == 0 && rs1 == 0)));
     gen_set_gpr(s, rd, dst);
     finalize_rvv_inst(s);
 
@@ -222,7 +222,7 @@ static bool do_vsetivli(DisasContext *s, int rd, TCGv s1, TCGv s2)
 
     dst = dest_gpr(s, rd);
 
-    gen_helper_vsetvl(dst, tcg_env, s1, s2);
+    gen_helper_vsetvl(dst, tcg_env, s1, s2, tcg_constant_tl(0));
     gen_set_gpr(s, rd, dst);
     finalize_rvv_inst(s);
     gen_update_pc(s, s->cur_insn_len);
@@ -1361,6 +1361,12 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data,
     fn(dest, mask, base, tcg_env, desc);
 
     finalize_rvv_inst(s);
+
+    /* vector unit-stride fault-only-first load may modify vl CSR */
+    gen_update_pc(s, s->cur_insn_len);
+    lookup_and_goto_ptr(s);
+    s->base.is_jmp = DISAS_NORETURN;
+
     return true;
 }
 
diff --git a/target/riscv/internals.h b/target/riscv/internals.h
index 4570bd50be..172296f12e 100644
--- a/target/riscv/internals.h
+++ b/target/riscv/internals.h
@@ -142,6 +142,33 @@ static inline float16 check_nanbox_h(CPURISCVState *env, uint64_t f)
     }
 }
 
+static inline float16 check_nanbox_bf16(CPURISCVState *env, uint64_t f)
+{
+    /* Disable nanbox check when enable zfinx */
+    if (env_archcpu(env)->cfg.ext_zfinx) {
+        return (uint16_t)f;
+    }
+
+    uint64_t mask = MAKE_64BIT_MASK(16, 48);
+
+    if (likely((f & mask) == mask)) {
+        return (uint16_t)f;
+    } else {
+        return 0x7FC0u; /* default qnan */
+    }
+}
+
+static inline target_ulong get_xepc_mask(CPURISCVState *env)
+{
+    /* When IALIGN=32, both low bits must be zero.
+     * When IALIGN=16 (has C extension), only bit 0 must be zero. */
+    if (riscv_has_ext(env, RVC)) {
+        return ~(target_ulong)1;
+    } else {
+        return ~(target_ulong)3;
+    }
+}
+
 #ifndef CONFIG_USER_ONLY
 /* Our implementation of SysemuCPUOps::has_work */
 bool riscv_cpu_has_work(CPUState *cs);
diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c
index e1a04be20f..5c19062c19 100644
--- a/target/riscv/kvm/kvm-cpu.c
+++ b/target/riscv/kvm/kvm-cpu.c
@@ -999,6 +999,19 @@ static void kvm_riscv_destroy_scratch_vcpu(KVMScratchCPU *scratch)
     close(scratch->kvmfd);
 }
 
+static void kvm_riscv_init_max_satp_mode(RISCVCPU *cpu, KVMScratchCPU *kvmcpu)
+{
+    struct kvm_one_reg reg;
+    int ret;
+
+    reg.id = RISCV_CONFIG_REG(satp_mode);
+    reg.addr = (uint64_t)&cpu->cfg.max_satp_mode;
+    ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
+    if (ret != 0) {
+        error_report("Unable to retrieve satp mode from host, error %d", ret);
+    }
+}
+
 static void kvm_riscv_init_machine_ids(RISCVCPU *cpu, KVMScratchCPU *kvmcpu)
 {
     struct kvm_one_reg reg;
@@ -1302,6 +1315,7 @@ static void riscv_init_kvm_registers(Object *cpu_obj)
     kvm_riscv_init_machine_ids(cpu, &kvmcpu);
     kvm_riscv_init_misa_ext_mask(cpu, &kvmcpu);
     kvm_riscv_init_cfg(cpu, &kvmcpu);
+    kvm_riscv_init_max_satp_mode(cpu, &kvmcpu);
 
     kvm_riscv_destroy_scratch_vcpu(&kvmcpu);
 }
@@ -1605,7 +1619,7 @@ static void kvm_riscv_handle_sbi_dbcn(CPUState *cs, struct kvm_run *run)
         break;
     case SBI_EXT_DBCN_CONSOLE_WRITE_BYTE:
         ch = run->riscv_sbi.args[0];
-        ret = qemu_chr_fe_write(serial_hd(0)->be, &ch, sizeof(ch));
+        ret = qemu_chr_fe_write_all(serial_hd(0)->be, &ch, sizeof(ch));
 
         if (ret < 0) {
             error_report("SBI_EXT_DBCN_CONSOLE_WRITE_BYTE: error when "
@@ -1985,7 +1999,7 @@ static bool kvm_cpu_realize(CPUState *cs, Error **errp)
         }
     }
 
-   return true;
+    return true;
 }
 
 void riscv_kvm_cpu_finalize_features(RISCVCPU *cpu, Error **errp)
diff --git a/target/riscv/machine.c b/target/riscv/machine.c
index c97e9ce9df..1600ec44f0 100644
--- a/target/riscv/machine.c
+++ b/target/riscv/machine.c
@@ -36,8 +36,9 @@ static int pmp_post_load(void *opaque, int version_id)
     RISCVCPU *cpu = opaque;
     CPURISCVState *env = &cpu->env;
     int i;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
 
-    for (i = 0; i < MAX_RISCV_PMPS; i++) {
+    for (i = 0; i < pmp_regions; i++) {
         pmp_update_rule_addr(env, i);
     }
     pmp_update_rule_nums(env);
diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c
index 557807ba4b..15460bf84b 100644
--- a/target/riscv/op_helper.c
+++ b/target/riscv/op_helper.c
@@ -280,7 +280,7 @@ target_ulong helper_sret(CPURISCVState *env)
         riscv_raise_exception(env, RISCV_EXCP_ILLEGAL_INST, GETPC());
     }
 
-    target_ulong retpc = env->sepc;
+    target_ulong retpc = env->sepc & get_xepc_mask(env);
     if (!riscv_cpu_allow_16bit_insn(&env_archcpu(env)->cfg,
                                     env->priv_ver,
                                     env->misa_ext) && (retpc & 0x3)) {
@@ -391,7 +391,7 @@ static target_ulong ssdbltrp_mxret(CPURISCVState *env, target_ulong mstatus,
 
 target_ulong helper_mret(CPURISCVState *env)
 {
-    target_ulong retpc = env->mepc;
+    target_ulong retpc = env->mepc & get_xepc_mask(env);
     uint64_t mstatus = env->mstatus;
     target_ulong prev_priv = get_field(mstatus, MSTATUS_MPP);
 
diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
index 5af295e410..3540327c9a 100644
--- a/target/riscv/pmp.c
+++ b/target/riscv/pmp.c
@@ -122,7 +122,9 @@ uint32_t pmp_get_num_rules(CPURISCVState *env)
  */
 static inline uint8_t pmp_read_cfg(CPURISCVState *env, uint32_t pmp_index)
 {
-    if (pmp_index < MAX_RISCV_PMPS) {
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
+
+    if (pmp_index < pmp_regions) {
         return env->pmp_state.pmp[pmp_index].cfg_reg;
     }
 
@@ -136,7 +138,9 @@ static inline uint8_t pmp_read_cfg(CPURISCVState *env, uint32_t pmp_index)
  */
 static bool pmp_write_cfg(CPURISCVState *env, uint32_t pmp_index, uint8_t val)
 {
-    if (pmp_index < MAX_RISCV_PMPS) {
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
+
+    if (pmp_index < pmp_regions) {
         if (env->pmp_state.pmp[pmp_index].cfg_reg == val) {
             /* no change */
             return false;
@@ -236,9 +240,10 @@ void pmp_update_rule_addr(CPURISCVState *env, uint32_t pmp_index)
 void pmp_update_rule_nums(CPURISCVState *env)
 {
     int i;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
 
     env->pmp_state.num_rules = 0;
-    for (i = 0; i < MAX_RISCV_PMPS; i++) {
+    for (i = 0; i < pmp_regions; i++) {
         const uint8_t a_field =
             pmp_get_a_field(env->pmp_state.pmp[i].cfg_reg);
         if (PMP_AMATCH_OFF != a_field) {
@@ -332,6 +337,7 @@ bool pmp_hart_has_privs(CPURISCVState *env, hwaddr addr,
     int pmp_size = 0;
     hwaddr s = 0;
     hwaddr e = 0;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
 
     /* Short cut if no rules */
     if (0 == pmp_get_num_rules(env)) {
@@ -356,7 +362,7 @@ bool pmp_hart_has_privs(CPURISCVState *env, hwaddr addr,
      * 1.10 draft priv spec states there is an implicit order
      * from low to high
      */
-    for (i = 0; i < MAX_RISCV_PMPS; i++) {
+    for (i = 0; i < pmp_regions; i++) {
         s = pmp_is_in_range(env, i, addr);
         e = pmp_is_in_range(env, i, addr + pmp_size - 1);
 
@@ -527,8 +533,9 @@ void pmpaddr_csr_write(CPURISCVState *env, uint32_t addr_index,
 {
     trace_pmpaddr_csr_write(env->mhartid, addr_index, val);
     bool is_next_cfg_tor = false;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
 
-    if (addr_index < MAX_RISCV_PMPS) {
+    if (addr_index < pmp_regions) {
         if (env->pmp_state.pmp[addr_index].addr_reg == val) {
             /* no change */
             return;
@@ -538,7 +545,7 @@ void pmpaddr_csr_write(CPURISCVState *env, uint32_t addr_index,
          * In TOR mode, need to check the lock bit of the next pmp
          * (if there is a next).
          */
-        if (addr_index + 1 < MAX_RISCV_PMPS) {
+        if (addr_index + 1 < pmp_regions) {
             uint8_t pmp_cfg = env->pmp_state.pmp[addr_index + 1].cfg_reg;
             is_next_cfg_tor = PMP_AMATCH_TOR == pmp_get_a_field(pmp_cfg);
 
@@ -573,8 +580,9 @@ void pmpaddr_csr_write(CPURISCVState *env, uint32_t addr_index,
 target_ulong pmpaddr_csr_read(CPURISCVState *env, uint32_t addr_index)
 {
     target_ulong val = 0;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
 
-    if (addr_index < MAX_RISCV_PMPS) {
+    if (addr_index < pmp_regions) {
         val = env->pmp_state.pmp[addr_index].addr_reg;
         trace_pmpaddr_csr_read(env->mhartid, addr_index, val);
     } else {
@@ -592,6 +600,7 @@ void mseccfg_csr_write(CPURISCVState *env, target_ulong val)
 {
     int i;
     uint64_t mask = MSECCFG_MMWP | MSECCFG_MML;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
     /* Update PMM field only if the value is valid according to Zjpm v1.0 */
     if (riscv_cpu_cfg(env)->ext_smmpm &&
         riscv_cpu_mxl(env) == MXL_RV64 &&
@@ -603,7 +612,7 @@ void mseccfg_csr_write(CPURISCVState *env, target_ulong val)
 
     /* RLB cannot be enabled if it's already 0 and if any regions are locked */
     if (!MSECCFG_RLB_ISSET(env)) {
-        for (i = 0; i < MAX_RISCV_PMPS; i++) {
+        for (i = 0; i < pmp_regions; i++) {
             if (pmp_is_locked(env, i)) {
                 val &= ~MSECCFG_RLB;
                 break;
@@ -659,6 +668,7 @@ target_ulong pmp_get_tlb_size(CPURISCVState *env, hwaddr addr)
     hwaddr tlb_sa = addr & ~(TARGET_PAGE_SIZE - 1);
     hwaddr tlb_ea = tlb_sa + TARGET_PAGE_SIZE - 1;
     int i;
+    uint8_t pmp_regions = riscv_cpu_cfg(env)->pmp_regions;
 
     /*
      * If PMP is not supported or there are no PMP rules, the TLB page will not
@@ -669,7 +679,7 @@ target_ulong pmp_get_tlb_size(CPURISCVState *env, hwaddr addr)
         return TARGET_PAGE_SIZE;
     }
 
-    for (i = 0; i < MAX_RISCV_PMPS; i++) {
+    for (i = 0; i < pmp_regions; i++) {
         if (pmp_get_a_field(env->pmp_state.pmp[i].cfg_reg) == PMP_AMATCH_OFF) {
             continue;
         }
diff --git a/target/riscv/riscv-qmp-cmds.c b/target/riscv/riscv-qmp-cmds.c
index 8ba8aa0d5f..8a1856c50e 100644
--- a/target/riscv/riscv-qmp-cmds.c
+++ b/target/riscv/riscv-qmp-cmds.c
@@ -121,7 +121,7 @@ static void riscv_obj_add_profiles_qdict(Object *obj, QDict *qdict_out)
 
     for (int i = 0; riscv_profiles[i] != NULL; i++) {
         profile = riscv_profiles[i];
-        value = QOBJECT(qbool_from_bool(profile->enabled));
+        value = QOBJECT(qbool_from_bool(profile->present));
 
         qdict_put_obj(qdict_out, profile->name, value);
     }
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 55fd9e5584..78fb279184 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -451,6 +451,15 @@ static void riscv_cpu_disable_priv_spec_isa_exts(RISCVCPU *cpu)
                 continue;
             }
 
+            /*
+             * cpu.debug = true is marked as 'sdtrig', priv spec 1.12.
+             * Skip this warning since existing CPUs with older priv
+             * spec and debug = true will be impacted.
+             */
+            if (!strcmp(edata->name, "sdtrig")) {
+                continue;
+            }
+
             isa_ext_update_enabled(cpu, edata->ext_enable_offset, false);
 
             /*
@@ -830,6 +839,12 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
         cpu->cfg.ext_ssctr = false;
     }
 
+    if (cpu->cfg.ext_svrsw60t59b &&
+        (!cpu->cfg.mmu || mcc->def->misa_mxl_max == MXL_RV32)) {
+        error_setg(errp, "svrsw60t59b is not supported on RV32 and MMU-less platforms");
+        return;
+    }
+
     /*
      * Disable isa extensions based on priv spec after we
      * validated and set everything we need.
@@ -867,16 +882,11 @@ static void riscv_cpu_check_parent_profile(RISCVCPU *cpu,
                                            RISCVCPUProfile *profile,
                                            RISCVCPUProfile *parent)
 {
-    const char *parent_name;
-    bool parent_enabled;
-
-    if (!profile->enabled || !parent) {
+    if (!profile->present || !parent) {
         return;
     }
 
-    parent_name = parent->name;
-    parent_enabled = object_property_get_bool(OBJECT(cpu), parent_name, NULL);
-    profile->enabled = parent_enabled;
+    profile->present = parent->present;
 }
 
 static void riscv_cpu_validate_profile(RISCVCPU *cpu,
@@ -937,7 +947,7 @@ static void riscv_cpu_validate_profile(RISCVCPU *cpu,
         }
     }
 
-    profile->enabled = profile_impl;
+    profile->present = profile_impl;
 
     riscv_cpu_check_parent_profile(cpu, profile, profile->u_parent);
     riscv_cpu_check_parent_profile(cpu, profile, profile->s_parent);
@@ -1166,6 +1176,70 @@ static bool riscv_cpu_is_generic(Object *cpu_obj)
     return object_dynamic_cast(cpu_obj, TYPE_RISCV_DYNAMIC_CPU) != NULL;
 }
 
+static void riscv_cpu_set_profile(RISCVCPU *cpu,
+                                  RISCVCPUProfile *profile,
+                                  bool enabled)
+{
+    int i, ext_offset;
+
+    if (profile->u_parent != NULL) {
+        riscv_cpu_set_profile(cpu, profile->u_parent, enabled);
+    }
+
+    if (profile->s_parent != NULL) {
+        riscv_cpu_set_profile(cpu, profile->s_parent, enabled);
+    }
+
+    profile->enabled = enabled;
+
+    if (profile->enabled) {
+        cpu->env.priv_ver = profile->priv_spec;
+
+#ifndef CONFIG_USER_ONLY
+        if (profile->satp_mode != RISCV_PROFILE_ATTR_UNUSED) {
+            object_property_set_bool(OBJECT(cpu), "mmu", true, NULL);
+            const char *satp_prop = satp_mode_str(profile->satp_mode,
+                                                  riscv_cpu_is_32bit(cpu));
+            object_property_set_bool(OBJECT(cpu), satp_prop, true, NULL);
+        }
+#endif
+    }
+
+    for (i = 0; misa_bits[i] != 0; i++) {
+        uint32_t bit = misa_bits[i];
+
+        if  (!(profile->misa_ext & bit)) {
+            continue;
+        }
+
+        if (bit == RVI && !profile->enabled) {
+            /*
+             * Disabling profiles will not disable the base
+             * ISA RV64I.
+             */
+            continue;
+        }
+
+        cpu_misa_ext_add_user_opt(bit, profile->enabled);
+        riscv_cpu_write_misa_bit(cpu, bit, profile->enabled);
+    }
+
+    for (i = 0; profile->ext_offsets[i] != RISCV_PROFILE_EXT_LIST_END; i++) {
+        ext_offset = profile->ext_offsets[i];
+
+        if (profile->enabled) {
+            if (cpu_cfg_offset_is_named_feat(ext_offset)) {
+                riscv_cpu_enable_named_feat(cpu, ext_offset);
+            }
+
+            cpu_bump_multi_ext_priv_ver(&cpu->env, ext_offset);
+        }
+
+        cpu_cfg_ext_add_user_opt(ext_offset, profile->enabled);
+        isa_ext_update_enabled(cpu, ext_offset, profile->enabled);
+    }
+}
+
 /*
  * We'll get here via the following path:
  *
@@ -1332,7 +1406,6 @@ static void cpu_set_profile(Object *obj, Visitor *v, const char *name,
     RISCVCPUProfile *profile = opaque;
     RISCVCPU *cpu = RISCV_CPU(obj);
     bool value;
-    int i, ext_offset;
 
     if (riscv_cpu_is_vendor(obj)) {
         error_setg(errp, "Profile %s is not available for vendor CPUs",
@@ -1351,64 +1424,8 @@ static void cpu_set_profile(Object *obj, Visitor *v, const char *name,
     }
 
     profile->user_set = true;
-    profile->enabled = value;
 
-    if (profile->u_parent != NULL) {
-        object_property_set_bool(obj, profile->u_parent->name,
-                                 profile->enabled, NULL);
-    }
-
-    if (profile->s_parent != NULL) {
-        object_property_set_bool(obj, profile->s_parent->name,
-                                 profile->enabled, NULL);
-    }
-
-    if (profile->enabled) {
-        cpu->env.priv_ver = profile->priv_spec;
-    }
-
-#ifndef CONFIG_USER_ONLY
-    if (profile->satp_mode != RISCV_PROFILE_ATTR_UNUSED) {
-        object_property_set_bool(obj, "mmu", true, NULL);
-        const char *satp_prop = satp_mode_str(profile->satp_mode,
-                                              riscv_cpu_is_32bit(cpu));
-        object_property_set_bool(obj, satp_prop, profile->enabled, NULL);
-    }
-#endif
-
-    for (i = 0; misa_bits[i] != 0; i++) {
-        uint32_t bit = misa_bits[i];
-
-        if  (!(profile->misa_ext & bit)) {
-            continue;
-        }
-
-        if (bit == RVI && !profile->enabled) {
-            /*
-             * Disabling profiles will not disable the base
-             * ISA RV64I.
-             */
-            continue;
-        }
-
-        cpu_misa_ext_add_user_opt(bit, profile->enabled);
-        riscv_cpu_write_misa_bit(cpu, bit, profile->enabled);
-    }
-
-    for (i = 0; profile->ext_offsets[i] != RISCV_PROFILE_EXT_LIST_END; i++) {
-        ext_offset = profile->ext_offsets[i];
-
-        if (profile->enabled) {
-            if (cpu_cfg_offset_is_named_feat(ext_offset)) {
-                riscv_cpu_enable_named_feat(cpu, ext_offset);
-            }
-
-            cpu_bump_multi_ext_priv_ver(&cpu->env, ext_offset);
-        }
-
-        cpu_cfg_ext_add_user_opt(ext_offset, profile->enabled);
-        isa_ext_update_enabled(cpu, ext_offset, profile->enabled);
-    }
+    riscv_cpu_set_profile(cpu, profile, value);
 }
 
 static void cpu_get_profile(Object *obj, Visitor *v, const char *name,
@@ -1423,7 +1440,7 @@ static void cpu_get_profile(Object *obj, Visitor *v, const char *name,
 static void riscv_cpu_add_profiles(Object *cpu_obj)
 {
     for (int i = 0; riscv_profiles[i] != NULL; i++) {
-        const RISCVCPUProfile *profile = riscv_profiles[i];
+        RISCVCPUProfile *profile = riscv_profiles[i];
 
         object_property_add(cpu_obj, profile->name, "bool",
                             cpu_get_profile, cpu_set_profile,
@@ -1435,30 +1452,11 @@ static void riscv_cpu_add_profiles(Object *cpu_obj)
          * case.
          */
         if (profile->enabled) {
-            object_property_set_bool(cpu_obj, profile->name, true, NULL);
+            riscv_cpu_set_profile(RISCV_CPU(cpu_obj), profile, true);
         }
     }
 }
 
-static bool cpu_ext_is_deprecated(const char *ext_name)
-{
-    return isupper(ext_name[0]);
-}
-
-/*
- * String will be allocated in the heap. Caller is responsible
- * for freeing it.
- */
-static char *cpu_ext_to_lower(const char *ext_name)
-{
-    char *ret = g_malloc0(strlen(ext_name) + 1);
-
-    strcpy(ret, ext_name);
-    ret[0] = tolower(ret[0]);
-
-    return ret;
-}
-
 static void cpu_set_multi_ext_cfg(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
 {
@@ -1471,13 +1469,6 @@ static void cpu_set_multi_ext_cfg(Object *obj, Visitor *v, const char *name,
         return;
     }
 
-    if (cpu_ext_is_deprecated(multi_ext_cfg->name)) {
-        g_autofree char *lower = cpu_ext_to_lower(multi_ext_cfg->name);
-
-        warn_report("CPU property '%s' is deprecated. Please use '%s' instead",
-                    multi_ext_cfg->name, lower);
-    }
-
     cpu_cfg_ext_add_user_opt(multi_ext_cfg->offset, value);
 
     prev_val = isa_ext_is_enabled(cpu, multi_ext_cfg->offset);
@@ -1513,14 +1504,13 @@ static void cpu_add_multi_ext_prop(Object *cpu_obj,
                                    const RISCVCPUMultiExtConfig *multi_cfg)
 {
     bool generic_cpu = riscv_cpu_is_generic(cpu_obj);
-    bool deprecated_ext = cpu_ext_is_deprecated(multi_cfg->name);
 
     object_property_add(cpu_obj, multi_cfg->name, "bool",
                         cpu_get_multi_ext_cfg,
                         cpu_set_multi_ext_cfg,
                         NULL, (void *)multi_cfg);
 
-    if (!generic_cpu || deprecated_ext) {
+    if (!generic_cpu) {
         return;
     }
 
@@ -1563,8 +1553,6 @@ static void riscv_cpu_add_user_properties(Object *obj)
     riscv_cpu_add_multiext_prop_array(obj, riscv_cpu_vendor_exts);
     riscv_cpu_add_multiext_prop_array(obj, riscv_cpu_experimental_exts);
 
-    riscv_cpu_add_multiext_prop_array(obj, riscv_cpu_deprecated_exts);
-
     riscv_cpu_add_profiles(obj);
 }
 
@@ -1606,6 +1594,8 @@ static void riscv_init_max_cpu_extensions(Object *obj)
 
     if (env->misa_mxl != MXL_RV32) {
         isa_ext_update_enabled(cpu, CPU_CFG_OFFSET(ext_zcf), false);
+    } else {
+        isa_ext_update_enabled(cpu, CPU_CFG_OFFSET(ext_svrsw60t59b), false);
     }
 
     /*
diff --git a/target/riscv/time_helper.c b/target/riscv/time_helper.c
index bc0d9a0c4c..400e917354 100644
--- a/target/riscv/time_helper.c
+++ b/target/riscv/time_helper.c
@@ -46,8 +46,23 @@ void riscv_timer_write_timecmp(CPURISCVState *env, QEMUTimer *timer,
 {
     uint64_t diff, ns_diff, next;
     RISCVAclintMTimerState *mtimer = env->rdtime_fn_arg;
-    uint32_t timebase_freq = mtimer->timebase_freq;
-    uint64_t rtc_r = env->rdtime_fn(env->rdtime_fn_arg) + delta;
+    uint32_t timebase_freq;
+    uint64_t rtc_r;
+
+    if (!riscv_cpu_cfg(env)->ext_sstc || !env->rdtime_fn ||
+        !env->rdtime_fn_arg || !get_field(env->menvcfg, MENVCFG_STCE)) {
+        /* S/VS Timer IRQ depends on sstc extension, rdtime_fn(), and STCE. */
+        return;
+    }
+
+    if (timer_irq == MIP_VSTIP &&
+        (!riscv_has_ext(env, RVH) || !get_field(env->henvcfg, HENVCFG_STCE))) {
+        /* VS Timer IRQ also depends on RVH and henvcfg.STCE. */
+        return;
+    }
+
+    timebase_freq = mtimer->timebase_freq;
+    rtc_r = env->rdtime_fn(env->rdtime_fn_arg) + delta;
 
     if (timecmp <= rtc_r) {
         /*
@@ -125,6 +140,52 @@ void riscv_timer_write_timecmp(CPURISCVState *env, QEMUTimer *timer,
     timer_mod(timer, next);
 }
 
+/*
+ * When disabling xenvcfg.STCE, the S/VS Timer may be disabled at the same time.
+ * It is safe to call this function regardless of whether the timer has been
+ * deleted or not. timer_del() will do nothing if the timer has already
+ * been deleted.
+ */
+static void riscv_timer_disable_timecmp(CPURISCVState *env, QEMUTimer *timer,
+                                 uint32_t timer_irq)
+{
+    /* Disable S-mode Timer IRQ and HW-based STIP */
+    if ((timer_irq == MIP_STIP) && !get_field(env->menvcfg, MENVCFG_STCE)) {
+        riscv_cpu_update_mip(env, timer_irq, BOOL_TO_MASK(0));
+        timer_del(timer);
+        return;
+    }
+
+    /* Disable VS-mode Timer IRQ and HW-based VSTIP */
+    if ((timer_irq == MIP_VSTIP) &&
+        (!get_field(env->menvcfg, MENVCFG_STCE) ||
+         !get_field(env->henvcfg, HENVCFG_STCE))) {
+        env->vstime_irq = 0;
+        riscv_cpu_update_mip(env, 0, BOOL_TO_MASK(0));
+        timer_del(timer);
+        return;
+    }
+}
+
+/* Enable or disable S/VS-mode Timer when xenvcfg.STCE is changed */
+void riscv_timer_stce_changed(CPURISCVState *env, bool is_m_mode, bool enable)
+{
+    if (enable) {
+        riscv_timer_write_timecmp(env, env->vstimer, env->vstimecmp,
+                                  env->htimedelta, MIP_VSTIP);
+    } else {
+        riscv_timer_disable_timecmp(env, env->vstimer, MIP_VSTIP);
+    }
+
+    if (is_m_mode) {
+        if (enable) {
+            riscv_timer_write_timecmp(env, env->stimer, env->stimecmp, 0, MIP_STIP);
+        } else {
+            riscv_timer_disable_timecmp(env, env->stimer, MIP_STIP);
+        }
+    }
+}
+
 void riscv_timer_init(RISCVCPU *cpu)
 {
     CPURISCVState *env;
diff --git a/target/riscv/time_helper.h b/target/riscv/time_helper.h
index cacd79b80c..af1f634f89 100644
--- a/target/riscv/time_helper.h
+++ b/target/riscv/time_helper.h
@@ -25,6 +25,7 @@
 void riscv_timer_write_timecmp(CPURISCVState *env, QEMUTimer *timer,
                                uint64_t timecmp, uint64_t delta,
                                uint32_t timer_irq);
+void riscv_timer_stce_changed(CPURISCVState *env, bool is_m_mode, bool enable);
 void riscv_timer_init(RISCVCPU *cpu);
 
 #endif
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index d7a6de02df..9ddef2d6e2 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -1217,13 +1217,35 @@ const RISCVDecoder decoder_table[] = {
 
 const size_t decoder_table_size = ARRAY_SIZE(decoder_table);
 
-static void decode_opc(CPURISCVState *env, DisasContext *ctx, uint16_t opcode)
+static void decode_opc(CPURISCVState *env, DisasContext *ctx)
 {
+    uint32_t opcode;
+    bool pc_is_4byte_align = ((ctx->base.pc_next % 4) == 0);
+
     ctx->virt_inst_excp = false;
-    ctx->cur_insn_len = insn_len(opcode);
+    if (pc_is_4byte_align) {
+        /*
+         * Load 4 bytes at once to make instruction fetch atomically.
+         *
+         * Note: When pc is 4-byte aligned, 4-byte instruction wouldn't be
+         * across pages. We could preload 4 bytes instruction no matter
+         * real one is 2 or 4 bytes. Instruction preload wouldn't trigger
+         * additional page fault.
+         */
+        opcode = translator_ldl(env, &ctx->base, ctx->base.pc_next);
+    } else {
+        /*
+         * For unaligned pc, instruction preload may trigger additional
+         * page fault so we only load 2 bytes here.
+         */
+        opcode = (uint32_t) translator_lduw(env, &ctx->base, ctx->base.pc_next);
+    }
+    ctx->ol = ctx->xl;
+
+    ctx->cur_insn_len = insn_len((uint16_t)opcode);
     /* Check for compressed insn */
     if (ctx->cur_insn_len == 2) {
-        ctx->opcode = opcode;
+        ctx->opcode = (uint16_t)opcode;
         /*
          * The Zca extension is added as way to refer to instructions in the C
          * extension that do not include the floating-point loads and stores
@@ -1233,15 +1255,17 @@ static void decode_opc(CPURISCVState *env, DisasContext *ctx, uint16_t opcode)
             return;
         }
     } else {
-        uint32_t opcode32 = opcode;
-        opcode32 = deposit32(opcode32, 16, 16,
-                             translator_lduw(env, &ctx->base,
-                                             ctx->base.pc_next + 2));
-        ctx->opcode = opcode32;
+        if (!pc_is_4byte_align) {
+            /* Load last 2 bytes of instruction here */
+            opcode = deposit32(opcode, 16, 16,
+                               translator_lduw(env, &ctx->base,
+                                               ctx->base.pc_next + 2));
+        }
+        ctx->opcode = opcode;
 
         for (guint i = 0; i < ctx->decoders->len; ++i) {
             riscv_cpu_decode_fn func = g_ptr_array_index(ctx->decoders, i);
-            if (func(ctx, opcode32)) {
+            if (func(ctx, opcode)) {
                 return;
             }
         }
@@ -1319,10 +1343,8 @@ static void riscv_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
 {
     DisasContext *ctx = container_of(dcbase, DisasContext, base);
     CPURISCVState *env = cpu_env(cpu);
-    uint16_t opcode16 = translator_lduw(env, &ctx->base, ctx->base.pc_next);
 
-    ctx->ol = ctx->xl;
-    decode_opc(env, ctx, opcode16);
+    decode_opc(env, ctx);
     ctx->base.pc_next += ctx->cur_insn_len;
 
     /*
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 5dc1c10012..b41c29da0b 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -35,7 +35,7 @@
 #include <math.h>
 
 target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1,
-                            target_ulong s2)
+                            target_ulong s2, target_ulong x0)
 {
     int vlmax, vl;
     RISCVCPU *cpu = env_archcpu(env);
@@ -83,6 +83,16 @@ target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1,
     } else {
         vl = vlmax;
     }
+
+    if (cpu->cfg.rvv_vsetvl_x0_vill && x0 && (env->vl != vl)) {
+        /* only set vill bit. */
+        env->vill = 1;
+        env->vtype = 0;
+        env->vl = 0;
+        env->vstart = 0;
+        return 0;
+    }
+
     env->vl = vl;
     env->vtype = s2;
     env->vstart = 0;