Merge tag 'pull-riscv-to-apply-20241220' of https://github.com/alistair23/qemu into staging

RISC-V PR for 10.0

* Correct the validness check of iova
* Fix APLIC in_clrip and clripnum write emulation
* Support riscv-iommu-sys device
* Add Tenstorrent Ascalon CPU
* Add AIA userspace irqchip_split support
* Add Microblaze V generic board
* Upgrade ACPI SPCR table to support SPCR table revision 4 format
* Remove tswap64() calls from HTIF
* Support 64-bit address of initrd
* Introduce svukte ISA extension
* Support ssstateen extension
* Support for RV64 Xiangshan Nanhu CPU

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 # gpg: WARNING: This key is not certified with a trusted signature!
 # gpg:          There is no indication that the signature belongs to the owner.
 # Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65  9296 AF7C 9513 0C53 8013

* tag 'pull-riscv-to-apply-20241220' of https://github.com/alistair23/qemu: (39 commits)
  target/riscv: add support for RV64 Xiangshan Nanhu CPU
  target/riscv: add ssstateen
  target/riscv/tcg: hide warn for named feats when disabling via priv_ver
  target/riscv: Include missing headers in 'internals.h'
  target/riscv: Include missing headers in 'vector_internals.h'
  target/riscv: Check svukte is not enabled in RV32
  target/riscv: Expose svukte ISA extension
  target/riscv: Check memory access to meet svukte rule
  target/riscv: Support hstatus[HUKTE] bit when svukte extension is enabled
  target/riscv: Support senvcfg[UKTE] bit when svukte extension is enabled
  target/riscv: Add svukte extension capability variable
  hw/riscv: Add the checking if DTB overlaps to kernel or initrd
  hw/riscv: Add a new struct RISCVBootInfo
  hw/riscv: Support to load DTB after 3GB memory on 64-bit system.
  hw/char/riscv_htif: Clarify MemoryRegionOps expect 32-bit accesses
  hw/char/riscv_htif: Explicit little-endian implementation
  MAINTAINERS: Cover RISC-V HTIF interface
  tests/qtest/bios-tables-test: Update virt SPCR golden reference for RISC-V
  hw/acpi: Upgrade ACPI SPCR table to support SPCR table revision 4 format
  qtest: allow SPCR acpi table changes
  ...

Conflicts:
  target/riscv/cpu.c

  Merge conflict with DEFINE_PROP_END_OF_LIST() removal. No Property
  array terminator is needed anymore.

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

10 files changed, 220 insertions, 24 deletions

diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
index 62115375cd..d56b067bf2 100644
--- a/target/riscv/cpu-qom.h
+++ b/target/riscv/cpu-qom.h
@@ -49,6 +49,8 @@
 #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
 #define TYPE_RISCV_CPU_THEAD_C906       RISCV_CPU_TYPE_NAME("thead-c906")
 #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_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 a5aa3a8670..f7d1da13f4 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -191,6 +191,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(ssccptr, PRIV_VERSION_1_11_0, has_priv_1_11),
     ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf),
     ISA_EXT_DATA_ENTRY(sscounterenw, PRIV_VERSION_1_12_0, has_priv_1_12),
+    ISA_EXT_DATA_ENTRY(ssstateen, PRIV_VERSION_1_12_0, ext_ssstateen),
     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),
@@ -199,6 +200,7 @@ 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(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),
     ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb),
@@ -579,6 +581,100 @@ static void rv64_veyron_v1_cpu_init(Object *obj)
 #endif
 }
 
+/* Tenstorrent Ascalon */
+static void rv64_tt_ascalon_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    RISCVCPU *cpu = RISCV_CPU(obj);
+
+    riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH | RVV);
+    env->priv_ver = PRIV_VERSION_1_13_0;
+
+    /* Enable ISA extensions */
+    cpu->cfg.mmu = true;
+    cpu->cfg.vlenb = 256 >> 3;
+    cpu->cfg.elen = 64;
+    cpu->env.vext_ver = VEXT_VERSION_1_00_0;
+    cpu->cfg.rvv_ma_all_1s = true;
+    cpu->cfg.rvv_ta_all_1s = true;
+    cpu->cfg.misa_w = true;
+    cpu->cfg.pmp = true;
+    cpu->cfg.cbom_blocksize = 64;
+    cpu->cfg.cbop_blocksize = 64;
+    cpu->cfg.cboz_blocksize = 64;
+    cpu->cfg.ext_zic64b = true;
+    cpu->cfg.ext_zicbom = true;
+    cpu->cfg.ext_zicbop = true;
+    cpu->cfg.ext_zicboz = true;
+    cpu->cfg.ext_zicntr = true;
+    cpu->cfg.ext_zicond = true;
+    cpu->cfg.ext_zicsr = true;
+    cpu->cfg.ext_zifencei = true;
+    cpu->cfg.ext_zihintntl = true;
+    cpu->cfg.ext_zihintpause = true;
+    cpu->cfg.ext_zihpm = true;
+    cpu->cfg.ext_zimop = true;
+    cpu->cfg.ext_zawrs = true;
+    cpu->cfg.ext_zfa = true;
+    cpu->cfg.ext_zfbfmin = true;
+    cpu->cfg.ext_zfh = true;
+    cpu->cfg.ext_zfhmin = true;
+    cpu->cfg.ext_zcb = true;
+    cpu->cfg.ext_zcmop = true;
+    cpu->cfg.ext_zba = true;
+    cpu->cfg.ext_zbb = true;
+    cpu->cfg.ext_zbs = true;
+    cpu->cfg.ext_zkt = true;
+    cpu->cfg.ext_zvbb = true;
+    cpu->cfg.ext_zvbc = true;
+    cpu->cfg.ext_zvfbfmin = true;
+    cpu->cfg.ext_zvfbfwma = true;
+    cpu->cfg.ext_zvfh = true;
+    cpu->cfg.ext_zvfhmin = true;
+    cpu->cfg.ext_zvkng = true;
+    cpu->cfg.ext_smaia = true;
+    cpu->cfg.ext_smstateen = true;
+    cpu->cfg.ext_ssaia = true;
+    cpu->cfg.ext_sscofpmf = true;
+    cpu->cfg.ext_sstc = true;
+    cpu->cfg.ext_svade = true;
+    cpu->cfg.ext_svinval = true;
+    cpu->cfg.ext_svnapot = true;
+    cpu->cfg.ext_svpbmt = true;
+
+#ifndef CONFIG_USER_ONLY
+    set_satp_mode_max_supported(cpu, VM_1_10_SV57);
+#endif
+}
+
+static void rv64_xiangshan_nanhu_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    RISCVCPU *cpu = RISCV_CPU(obj);
+
+    riscv_cpu_set_misa_ext(env, RVG | RVC | RVB | RVS | RVU);
+    env->priv_ver = PRIV_VERSION_1_12_0;
+
+    /* Enable ISA extensions */
+    cpu->cfg.ext_zbc = true;
+    cpu->cfg.ext_zbkb = true;
+    cpu->cfg.ext_zbkc = true;
+    cpu->cfg.ext_zbkx = true;
+    cpu->cfg.ext_zknd = true;
+    cpu->cfg.ext_zkne = true;
+    cpu->cfg.ext_zknh = true;
+    cpu->cfg.ext_zksed = true;
+    cpu->cfg.ext_zksh = true;
+    cpu->cfg.ext_svinval = true;
+
+    cpu->cfg.mmu = true;
+    cpu->cfg.pmp = true;
+
+#ifndef CONFIG_USER_ONLY
+    set_satp_mode_max_supported(cpu, VM_1_10_SV39);
+#endif
+}
+
 #ifdef CONFIG_TCG
 static void rv128_base_cpu_init(Object *obj)
 {
@@ -1597,6 +1693,8 @@ const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[] = {
 
 /* These are experimental so mark with 'x-' */
 const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = {
+    MULTI_EXT_CFG_BOOL("x-svukte", ext_svukte, false),
+
     { },
 };
 
@@ -1609,6 +1707,7 @@ const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = {
  */
 const RISCVCPUMultiExtConfig riscv_cpu_named_features[] = {
     MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true),
+    MULTI_EXT_CFG_BOOL("ssstateen", ext_ssstateen, true),
 
     { },
 };
@@ -2983,7 +3082,10 @@ static const TypeInfo riscv_cpu_type_infos[] = {
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64,  rv64_sifive_u_cpu_init),
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C,   MXL_RV64,  rv64_sifive_u_cpu_init),
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64,  rv64_thead_c906_cpu_init),
+    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_TT_ASCALON, MXL_RV64,  rv64_tt_ascalon_cpu_init),
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1,  MXL_RV64,  rv64_veyron_v1_cpu_init),
+    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_XIANGSHAN_NANHU,
+                                                 MXL_RV64, rv64_xiangshan_nanhu_cpu_init),
 #ifdef CONFIG_TCG
     DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128,   MXL_RV128, rv128_base_cpu_init),
 #endif /* CONFIG_TCG */
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h
index 385a2c67c2..fe4e34c64a 100644
--- a/target/riscv/cpu_bits.h
+++ b/target/riscv/cpu_bits.h
@@ -604,6 +604,7 @@ typedef enum {
 #define HSTATUS_VTVM         0x00100000
 #define HSTATUS_VTW          0x00200000
 #define HSTATUS_VTSR         0x00400000
+#define HSTATUS_HUKTE        0x01000000
 #define HSTATUS_VSXL         0x300000000
 
 #define HSTATUS32_WPRI       0xFF8FF87E
@@ -785,6 +786,7 @@ typedef enum RISCVException {
 #define SENVCFG_CBIE                       MENVCFG_CBIE
 #define SENVCFG_CBCFE                      MENVCFG_CBCFE
 #define SENVCFG_CBZE                       MENVCFG_CBZE
+#define SENVCFG_UKTE                       BIT(8)
 
 #define HENVCFG_FIOM                       MENVCFG_FIOM
 #define HENVCFG_LPE                        MENVCFG_LPE
diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h
index 59d6fc445d..a1457ab4f4 100644
--- a/target/riscv/cpu_cfg.h
+++ b/target/riscv/cpu_cfg.h
@@ -84,6 +84,7 @@ struct RISCVCPUConfig {
     bool ext_svnapot;
     bool ext_svpbmt;
     bool ext_svvptc;
+    bool ext_svukte;
     bool ext_zdinx;
     bool ext_zaamo;
     bool ext_zacas;
@@ -139,6 +140,7 @@ struct RISCVCPUConfig {
     /* Named features  */
     bool ext_svade;
     bool ext_zic64b;
+    bool ext_ssstateen;
 
     /*
      * Always 'true' booleans for named features
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 45806f5ab0..750c0537ca 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -857,6 +857,55 @@ static int get_physical_address_pmp(CPURISCVState *env, int *prot, hwaddr addr,
     return TRANSLATE_SUCCESS;
 }
 
+/* Returns 'true' if a svukte address check is needed */
+static bool do_svukte_check(CPURISCVState *env, bool first_stage,
+                             int mode, bool virt)
+{
+    /* Svukte extension depends on Sv39. */
+    if (!(env_archcpu(env)->cfg.ext_svukte ||
+        !first_stage ||
+        VM_1_10_SV39 != get_field(env->satp, SATP64_MODE))) {
+        return false;
+    }
+
+    /*
+     * Check hstatus.HUKTE if the effective mode is switched to VU-mode by
+     * executing HLV/HLVX/HSV in U-mode.
+     * For other cases, check senvcfg.UKTE.
+     */
+    if (env->priv == PRV_U && !env->virt_enabled && virt) {
+        if (!get_field(env->hstatus, HSTATUS_HUKTE)) {
+            return false;
+        }
+    } else if (!get_field(env->senvcfg, SENVCFG_UKTE)) {
+        return false;
+    }
+
+    /*
+     * Svukte extension is qualified only in U or VU-mode.
+     *
+     * Effective mode can be switched to U or VU-mode by:
+     *   - M-mode + mstatus.MPRV=1 + mstatus.MPP=U-mode.
+     *   - Execute HLV/HLVX/HSV from HS-mode + hstatus.SPVP=0.
+     *   - U-mode.
+     *   - VU-mode.
+     *   - Execute HLV/HLVX/HSV from U-mode + hstatus.HU=1.
+     */
+    if (mode != PRV_U) {
+        return false;
+    }
+
+    return true;
+}
+
+static bool check_svukte_addr(CPURISCVState *env, vaddr addr)
+{
+    /* svukte extension excludes RV32 */
+    uint32_t sxlen = 32 * riscv_cpu_sxl(env);
+    uint64_t high_bit = addr & (1UL << (sxlen - 1));
+    return !high_bit;
+}
+
 /*
  * get_physical_address - get the physical address for this virtual address
  *
@@ -894,6 +943,7 @@ static int get_physical_address(CPURISCVState *env, hwaddr *physical,
     MemTxResult res;
     MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
     int mode = mmuidx_priv(mmu_idx);
+    bool virt = mmuidx_2stage(mmu_idx);
     bool use_background = false;
     hwaddr ppn;
     int napot_bits = 0;
@@ -901,6 +951,11 @@ static int get_physical_address(CPURISCVState *env, hwaddr *physical,
     bool is_sstack_idx = ((mmu_idx & MMU_IDX_SS_WRITE) == MMU_IDX_SS_WRITE);
     bool sstack_page = false;
 
+    if (do_svukte_check(env, first_stage, mode, virt) &&
+        !check_svukte_addr(env, addr)) {
+        return TRANSLATE_FAIL;
+    }
+
     /*
      * Check if we should use the background registers for the two
      * stage translation. We don't need to check if we actually need
diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index 9846770820..b6fa8ae53f 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -2453,6 +2453,10 @@ static RISCVException write_senvcfg(CPURISCVState *env, int csrno,
         mask |= SENVCFG_SSE;
     }
 
+    if (env_archcpu(env)->cfg.ext_svukte) {
+        mask |= SENVCFG_UKTE;
+    }
+
     env->senvcfg = (env->senvcfg & ~mask) | (val & mask);
     return RISCV_EXCP_NONE;
 }
@@ -3536,6 +3540,9 @@ static RISCVException read_hstatus(CPURISCVState *env, int csrno,
 static RISCVException write_hstatus(CPURISCVState *env, int csrno,
                                     target_ulong val)
 {
+    if (!env_archcpu(env)->cfg.ext_svukte) {
+        val = val & (~HSTATUS_HUKTE);
+    }
     env->hstatus = val;
     if (riscv_cpu_mxl(env) != MXL_RV32 && get_field(val, HSTATUS_VSXL) != 2) {
         qemu_log_mask(LOG_UNIMP,
diff --git a/target/riscv/internals.h b/target/riscv/internals.h
index ddbdee885b..76934eaa7b 100644
--- a/target/riscv/internals.h
+++ b/target/riscv/internals.h
@@ -19,7 +19,10 @@
 #ifndef RISCV_CPU_INTERNALS_H
 #define RISCV_CPU_INTERNALS_H
 
+#include "exec/cpu-common.h"
 #include "hw/registerfields.h"
+#include "fpu/softfloat-types.h"
+#include "target/riscv/cpu_bits.h"
 
 /*
  * The current MMU Modes are:
diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c
index c53ca1f76b..aaff4a0f42 100644
--- a/target/riscv/kvm/kvm-cpu.c
+++ b/target/riscv/kvm/kvm-cpu.c
@@ -1408,11 +1408,6 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
 
 int kvm_arch_irqchip_create(KVMState *s)
 {
-    if (kvm_kernel_irqchip_split()) {
-        error_report("-machine kernel_irqchip=split is not supported on RISC-V.");
-        exit(1);
-    }
-
     /*
      * We can create the VAIA using the newer device control API.
      */
@@ -1734,13 +1729,29 @@ void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift,
         }
     }
 
-    ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG,
-                            KVM_DEV_RISCV_AIA_CONFIG_SRCS,
-                            &aia_irq_num, true, NULL);
-    if (ret < 0) {
-        error_report("KVM AIA: failed to set number of input irq lines");
-        exit(1);
-    }
+    /*
+     * Skip APLIC creation in KVM if we're running split mode.
+     * This is done by leaving KVM_DEV_RISCV_AIA_CONFIG_SRCS
+     * unset. We can also skip KVM_DEV_RISCV_AIA_ADDR_APLIC
+     * since KVM won't be using it.
+     */
+    if (!kvm_kernel_irqchip_split()) {
+        ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG,
+                                KVM_DEV_RISCV_AIA_CONFIG_SRCS,
+                                &aia_irq_num, true, NULL);
+        if (ret < 0) {
+            error_report("KVM AIA: failed to set number of input irq lines");
+            exit(1);
+        }
+
+        ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_ADDR,
+                                KVM_DEV_RISCV_AIA_ADDR_APLIC,
+                                &aplic_base, true, NULL);
+        if (ret < 0) {
+            error_report("KVM AIA: failed to set the base address of APLIC");
+            exit(1);
+        }
+     }
 
     ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG,
                             KVM_DEV_RISCV_AIA_CONFIG_IDS,
@@ -1781,14 +1792,6 @@ void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift,
         exit(1);
     }
 
-    ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_ADDR,
-                            KVM_DEV_RISCV_AIA_ADDR_APLIC,
-                            &aplic_base, true, NULL);
-    if (ret < 0) {
-        error_report("KVM AIA: failed to set the base address of APLIC");
-        exit(1);
-    }
-
     for (socket = 0; socket < socket_count; socket++) {
         socket_imsic_base = imsic_base + socket * (1U << group_shift);
         hart_count = riscv_socket_hart_count(machine, socket);
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index c62c221696..cbf2cf1963 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -204,10 +204,15 @@ static void riscv_cpu_enable_named_feat(RISCVCPU *cpu, uint32_t feat_offset)
       * All other named features are already enabled
       * in riscv_tcg_cpu_instance_init().
       */
-    if (feat_offset == CPU_CFG_OFFSET(ext_zic64b)) {
+    switch (feat_offset) {
+    case CPU_CFG_OFFSET(ext_zic64b):
         cpu->cfg.cbom_blocksize = 64;
         cpu->cfg.cbop_blocksize = 64;
         cpu->cfg.cboz_blocksize = 64;
+        break;
+    case CPU_CFG_OFFSET(ext_ssstateen):
+        cpu->cfg.ext_smstateen = true;
+        break;
     }
 }
 
@@ -304,6 +309,15 @@ static void riscv_cpu_disable_priv_spec_isa_exts(RISCVCPU *cpu)
             }
 
             isa_ext_update_enabled(cpu, edata->ext_enable_offset, false);
+
+            /*
+             * Do not show user warnings for named features that users
+             * can't enable/disable in the command line. See commit
+             * 68c9e54bea for more info.
+             */
+            if (cpu_cfg_offset_is_named_feat(edata->ext_enable_offset)) {
+                continue;
+            }
 #ifndef CONFIG_USER_ONLY
             warn_report("disabling %s extension for hart 0x" TARGET_FMT_lx
                         " because privilege spec version does not match",
@@ -331,11 +345,11 @@ static void riscv_cpu_update_named_features(RISCVCPU *cpu)
         cpu->cfg.has_priv_1_13 = true;
     }
 
-    /* zic64b is 1.12 or later */
     cpu->cfg.ext_zic64b = cpu->cfg.cbom_blocksize == 64 &&
                           cpu->cfg.cbop_blocksize == 64 &&
-                          cpu->cfg.cboz_blocksize == 64 &&
-                          cpu->cfg.has_priv_1_12;
+                          cpu->cfg.cboz_blocksize == 64;
+
+    cpu->cfg.ext_ssstateen = cpu->cfg.ext_smstateen;
 }
 
 static void riscv_cpu_validate_g(RISCVCPU *cpu)
@@ -652,6 +666,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
         return;
     }
 
+    if (mcc->misa_mxl_max == MXL_RV32 && cpu->cfg.ext_svukte) {
+        error_setg(errp, "svukte is not supported for RV32");
+        return;
+    }
+
     /*
      * Disable isa extensions based on priv spec after we
      * validated and set everything we need.
diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h
index 9e1e15b575..a11cc8366d 100644
--- a/target/riscv/vector_internals.h
+++ b/target/riscv/vector_internals.h
@@ -20,6 +20,7 @@
 #define TARGET_RISCV_VECTOR_INTERNALS_H
 
 #include "qemu/bitops.h"
+#include "hw/registerfields.h"
 #include "cpu.h"
 #include "tcg/tcg-gvec-desc.h"
 #include "internals.h"