target/riscv/kvm: turn kvm_riscv_reg_id_ulong() into a macro

We need the reg_id_ulong() helper to be a macro to be able to create a
static array of KVMCPUConfig that will hold CSR information.

Despite the amount of changes all of them are tedious/trivial:

- replace instances of "kvm_riscv_reg_id_ulong" with
  "KVM_RISCV_REG_ID_ULONG";

- RISCV_CORE_REG(), RISCV_CSR_REG(), RISCV_CONFIG_REG() and
  RISCV_VECTOR_CSR_REG() only receives one 'name' arg. Remove unneeded
  'env' variables when applicable.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250429124421.223883-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Cc: qemu-stable@nongnu.org
(cherry picked from commit 11766e17616a5a4181d4a63f88adf67ac52c553b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

target/riscv/kvm/kvm-cpu.c

@@ -64,23 +64,11 @@ static bool cap_has_mp_state;
 #define KVM_RISCV_REG_ID_U64(type, idx) (KVM_REG_RISCV | KVM_REG_SIZE_U64 | \
                                          type | idx)
 
-static uint64_t kvm_riscv_reg_id_ulong(CPURISCVState *env, uint64_t type,
-                                 uint64_t idx)
-{
-    uint64_t id = KVM_REG_RISCV | type | idx;
-
-    switch (riscv_cpu_mxl(env)) {
-    case MXL_RV32:
-        id |= KVM_REG_SIZE_U32;
-        break;
-    case MXL_RV64:
-        id |= KVM_REG_SIZE_U64;
-        break;
-    default:
-        g_assert_not_reached();
-    }
-    return id;
-}
+#if defined(TARGET_RISCV64)
+#define KVM_RISCV_REG_ID_ULONG(type, idx) KVM_RISCV_REG_ID_U64(type, idx)
+#else
+#define KVM_RISCV_REG_ID_ULONG(type, idx) KVM_RISCV_REG_ID_U32(type, idx)
+#endif
 
 static uint64_t kvm_encode_reg_size_id(uint64_t id, size_t size_b)
 {
@@ -103,16 +91,16 @@ static uint64_t kvm_riscv_vector_reg_id(RISCVCPU *cpu,
     return kvm_encode_reg_size_id(id, size_b);
 }
 
-#define RISCV_CORE_REG(env, name) \
-    kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CORE, \
+#define RISCV_CORE_REG(name) \
+    KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CORE, \
                            KVM_REG_RISCV_CORE_REG(name))
 
-#define RISCV_CSR_REG(env, name) \
-    kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CSR, \
+#define RISCV_CSR_REG(name) \
+    KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CSR, \
                            KVM_REG_RISCV_CSR_REG(name))
 
-#define RISCV_CONFIG_REG(env, name) \
-    kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CONFIG, \
+#define RISCV_CONFIG_REG(name) \
+    KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CONFIG, \
                            KVM_REG_RISCV_CONFIG_REG(name))
 
 #define RISCV_TIMER_REG(name)  KVM_RISCV_REG_ID_U64(KVM_REG_RISCV_TIMER, \
@@ -122,13 +110,13 @@ static uint64_t kvm_riscv_vector_reg_id(RISCVCPU *cpu,
 
 #define RISCV_FP_D_REG(idx)  KVM_RISCV_REG_ID_U64(KVM_REG_RISCV_FP_D, idx)
 
-#define RISCV_VECTOR_CSR_REG(env, name) \
-    kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_VECTOR, \
+#define RISCV_VECTOR_CSR_REG(name) \
+    KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_VECTOR, \
                            KVM_REG_RISCV_VECTOR_CSR_REG(name))
 
 #define KVM_RISCV_GET_CSR(cs, env, csr, reg) \
     do { \
-        int _ret = kvm_get_one_reg(cs, RISCV_CSR_REG(env, csr), &reg); \
+        int _ret = kvm_get_one_reg(cs, RISCV_CSR_REG(csr), &reg); \
         if (_ret) { \
             return _ret; \
         } \
@@ -136,7 +124,7 @@ static uint64_t kvm_riscv_vector_reg_id(RISCVCPU *cpu,
 
 #define KVM_RISCV_SET_CSR(cs, env, csr, reg) \
     do { \
-        int _ret = kvm_set_one_reg(cs, RISCV_CSR_REG(env, csr), &reg); \
+        int _ret = kvm_set_one_reg(cs, RISCV_CSR_REG(csr), &reg); \
         if (_ret) { \
             return _ret; \
         } \
@@ -244,7 +232,7 @@ static void kvm_riscv_update_cpu_misa_ext(RISCVCPU *cpu, CPUState *cs)
 
         /* If we're here we're going to disable the MISA bit */
         reg = 0;
-        id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_ISA_EXT,
+        id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_ISA_EXT,
                                     misa_cfg->kvm_reg_id);
         ret = kvm_set_one_reg(cs, id, &reg);
         if (ret != 0) {
@@ -430,7 +418,6 @@ static KVMCPUConfig kvm_sbi_dbcn = {
 
 static void kvm_riscv_update_cpu_cfg_isa_ext(RISCVCPU *cpu, CPUState *cs)
 {
-    CPURISCVState *env = &cpu->env;
     uint64_t id, reg;
     int i, ret;
 
@@ -441,7 +428,7 @@ static void kvm_riscv_update_cpu_cfg_isa_ext(RISCVCPU *cpu, CPUState *cs)
             continue;
         }
 
-        id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_ISA_EXT,
+        id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_ISA_EXT,
                                     multi_ext_cfg->kvm_reg_id);
         reg = kvm_cpu_cfg_get(cpu, multi_ext_cfg);
         ret = kvm_set_one_reg(cs, id, &reg);
@@ -566,14 +553,14 @@ static int kvm_riscv_get_regs_core(CPUState *cs)
     target_ulong reg;
     CPURISCVState *env = &RISCV_CPU(cs)->env;
 
-    ret = kvm_get_one_reg(cs, RISCV_CORE_REG(env, regs.pc), &reg);
+    ret = kvm_get_one_reg(cs, RISCV_CORE_REG(regs.pc), &reg);
     if (ret) {
         return ret;
     }
     env->pc = reg;
 
     for (i = 1; i < 32; i++) {
-        uint64_t id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CORE, i);
+        uint64_t id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CORE, i);
         ret = kvm_get_one_reg(cs, id, &reg);
         if (ret) {
             return ret;
@@ -592,13 +579,13 @@ static int kvm_riscv_put_regs_core(CPUState *cs)
     CPURISCVState *env = &RISCV_CPU(cs)->env;
 
     reg = env->pc;
-    ret = kvm_set_one_reg(cs, RISCV_CORE_REG(env, regs.pc), &reg);
+    ret = kvm_set_one_reg(cs, RISCV_CORE_REG(regs.pc), &reg);
     if (ret) {
         return ret;
     }
 
     for (i = 1; i < 32; i++) {
-        uint64_t id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CORE, i);
+        uint64_t id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CORE, i);
         reg = env->gpr[i];
         ret = kvm_set_one_reg(cs, id, &reg);
         if (ret) {
@@ -796,26 +783,26 @@ static int kvm_riscv_get_regs_vector(CPUState *cs)
         return 0;
     }
 
-    ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vstart), &reg);
+    ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(vstart), &reg);
     if (ret) {
         return ret;
     }
     env->vstart = reg;
 
-    ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vl), &reg);
+    ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(vl), &reg);
     if (ret) {
         return ret;
     }
     env->vl = reg;
 
-    ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vtype), &reg);
+    ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(vtype), &reg);
     if (ret) {
         return ret;
     }
     env->vtype = reg;
 
     if (kvm_v_vlenb.supported) {
-        ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vlenb), &reg);
+        ret = kvm_get_one_reg(cs, RISCV_VECTOR_CSR_REG(vlenb), &reg);
         if (ret) {
             return ret;
         }
@@ -853,26 +840,26 @@ static int kvm_riscv_put_regs_vector(CPUState *cs)
     }
 
     reg = env->vstart;
-    ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vstart), &reg);
+    ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(vstart), &reg);
     if (ret) {
         return ret;
     }
 
     reg = env->vl;
-    ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vl), &reg);
+    ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(vl), &reg);
     if (ret) {
         return ret;
     }
 
     reg = env->vtype;
-    ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vtype), &reg);
+    ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(vtype), &reg);
     if (ret) {
         return ret;
     }
 
     if (kvm_v_vlenb.supported) {
         reg = cpu->cfg.vlenb;
-        ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(env, vlenb), &reg);
+        ret = kvm_set_one_reg(cs, RISCV_VECTOR_CSR_REG(vlenb), &reg);
 
         for (int i = 0; i < 32; i++) {
             /*
@@ -951,25 +938,24 @@ static void kvm_riscv_destroy_scratch_vcpu(KVMScratchCPU *scratch)
 
 static void kvm_riscv_init_machine_ids(RISCVCPU *cpu, KVMScratchCPU *kvmcpu)
 {
-    CPURISCVState *env = &cpu->env;
     struct kvm_one_reg reg;
     int ret;
 
-    reg.id = RISCV_CONFIG_REG(env, mvendorid);
+    reg.id = RISCV_CONFIG_REG(mvendorid);
     reg.addr = (uint64_t)&cpu->cfg.mvendorid;
     ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
     if (ret != 0) {
         error_report("Unable to retrieve mvendorid from host, error %d", ret);
     }
 
-    reg.id = RISCV_CONFIG_REG(env, marchid);
+    reg.id = RISCV_CONFIG_REG(marchid);
     reg.addr = (uint64_t)&cpu->cfg.marchid;
     ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
     if (ret != 0) {
         error_report("Unable to retrieve marchid from host, error %d", ret);
     }
 
-    reg.id = RISCV_CONFIG_REG(env, mimpid);
+    reg.id = RISCV_CONFIG_REG(mimpid);
     reg.addr = (uint64_t)&cpu->cfg.mimpid;
     ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
     if (ret != 0) {
@@ -984,7 +970,7 @@ static void kvm_riscv_init_misa_ext_mask(RISCVCPU *cpu,
     struct kvm_one_reg reg;
     int ret;
 
-    reg.id = RISCV_CONFIG_REG(env, isa);
+    reg.id = RISCV_CONFIG_REG(isa);
     reg.addr = (uint64_t)&env->misa_ext_mask;
     ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
 
@@ -1001,11 +987,10 @@ static void kvm_riscv_init_misa_ext_mask(RISCVCPU *cpu,
 static void kvm_riscv_read_cbomz_blksize(RISCVCPU *cpu, KVMScratchCPU *kvmcpu,
                                          KVMCPUConfig *cbomz_cfg)
 {
-    CPURISCVState *env = &cpu->env;
     struct kvm_one_reg reg;
     int ret;
 
-    reg.id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CONFIG,
+    reg.id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CONFIG,
                                     cbomz_cfg->kvm_reg_id);
     reg.addr = (uint64_t)kvmconfig_get_cfg_addr(cpu, cbomz_cfg);
     ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
@@ -1019,7 +1004,6 @@ static void kvm_riscv_read_cbomz_blksize(RISCVCPU *cpu, KVMScratchCPU *kvmcpu,
 static void kvm_riscv_read_multiext_legacy(RISCVCPU *cpu,
                                            KVMScratchCPU *kvmcpu)
 {
-    CPURISCVState *env = &cpu->env;
     uint64_t val;
     int i, ret;
 
@@ -1027,7 +1011,7 @@ static void kvm_riscv_read_multiext_legacy(RISCVCPU *cpu,
         KVMCPUConfig *multi_ext_cfg = &kvm_multi_ext_cfgs[i];
         struct kvm_one_reg reg;
 
-        reg.id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_ISA_EXT,
+        reg.id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_ISA_EXT,
                                         multi_ext_cfg->kvm_reg_id);
         reg.addr = (uint64_t)&val;
         ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, &reg);
@@ -1159,7 +1143,7 @@ static void kvm_riscv_init_multiext_cfg(RISCVCPU *cpu, KVMScratchCPU *kvmcpu)
 
     for (i = 0; i < ARRAY_SIZE(kvm_multi_ext_cfgs); i++) {
         multi_ext_cfg = &kvm_multi_ext_cfgs[i];
-        reg_id = kvm_riscv_reg_id_ulong(&cpu->env, KVM_REG_RISCV_ISA_EXT,
+        reg_id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_ISA_EXT,
                                         multi_ext_cfg->kvm_reg_id);
         reg_search = bsearch(&reg_id, reglist->reg, reglist->n,
                              sizeof(uint64_t), uint64_cmp);
@@ -1338,12 +1322,11 @@ void kvm_arch_init_irq_routing(KVMState *s)
 
 static int kvm_vcpu_set_machine_ids(RISCVCPU *cpu, CPUState *cs)
 {
-    CPURISCVState *env = &cpu->env;
     target_ulong reg;
     uint64_t id;
     int ret;
 
-    id = RISCV_CONFIG_REG(env, mvendorid);
+    id = RISCV_CONFIG_REG(mvendorid);
     /*
      * cfg.mvendorid is an uint32 but a target_ulong will
      * be written. Assign it to a target_ulong var to avoid
@@ -1355,13 +1338,13 @@ static int kvm_vcpu_set_machine_ids(RISCVCPU *cpu, CPUState *cs)
         return ret;
     }
 
-    id = RISCV_CONFIG_REG(env, marchid);
+    id = RISCV_CONFIG_REG(marchid);
     ret = kvm_set_one_reg(cs, id, &cpu->cfg.marchid);
     if (ret != 0) {
         return ret;
     }
 
-    id = RISCV_CONFIG_REG(env, mimpid);
+    id = RISCV_CONFIG_REG(mimpid);
     ret = kvm_set_one_reg(cs, id, &cpu->cfg.mimpid);
 
     return ret;
@@ -1911,7 +1894,7 @@ void riscv_kvm_cpu_finalize_features(RISCVCPU *cpu, Error **errp)
     if (cpu->cfg.ext_zicbom &&
         riscv_cpu_option_set(kvm_cbom_blocksize.name)) {
 
-        reg.id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CONFIG,
+        reg.id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CONFIG,
                                         kvm_cbom_blocksize.kvm_reg_id);
         reg.addr = (uint64_t)&val;
         ret = ioctl(kvmcpu.cpufd, KVM_GET_ONE_REG, &reg);
@@ -1930,7 +1913,7 @@ void riscv_kvm_cpu_finalize_features(RISCVCPU *cpu, Error **errp)
     if (cpu->cfg.ext_zicboz &&
         riscv_cpu_option_set(kvm_cboz_blocksize.name)) {
 
-        reg.id = kvm_riscv_reg_id_ulong(env, KVM_REG_RISCV_CONFIG,
+        reg.id = KVM_RISCV_REG_ID_ULONG(KVM_REG_RISCV_CONFIG,
                                         kvm_cboz_blocksize.kvm_reg_id);
         reg.addr = (uint64_t)&val;
         ret = ioctl(kvmcpu.cpufd, KVM_GET_ONE_REG, &reg);