From 82f7b1d40495584f526f826e9e6607500a4d391e Mon Sep 17 00:00:00 2001
From: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Date: Fri, 12 Jan 2024 11:01:57 -0300
Subject: [PATCH] target/riscv: move 'cboz_blocksize' to riscv_cpu_properties[]

And remove the now unused kvm_cpu_set_cbomz_blksize() setter.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Vladimir Isaev <vladimir.isaev@syntacore.com>
tested-by tags added, rebased with Alistair's riscv-to-apply.next.
Message-ID: <20240112140201.127083-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/cpu.c         | 38 +++++++++++++++++++++++++++++++++++++-
 target/riscv/kvm/kvm-cpu.c | 28 ----------------------------
 2 files changed, 37 insertions(+), 29 deletions(-)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 1828366d93..da8d19c790 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -1328,6 +1328,7 @@ static void riscv_cpu_init(Object *obj)
     cpu->cfg.elen = 64;
     cpu->cfg.cbom_blocksize = 64;
     cpu->cfg.cbop_blocksize = 64;
+    cpu->cfg.cboz_blocksize = 64;
     cpu->env.vext_ver = VEXT_VERSION_1_00_0;
 }
 
@@ -1949,8 +1950,42 @@ static const PropertyInfo prop_cbop_blksize = {
     .set = prop_cbop_blksize_set,
 };
 
+static void prop_cboz_blksize_set(Object *obj, Visitor *v, const char *name,
+                                  void *opaque, Error **errp)
+{
+    RISCVCPU *cpu = RISCV_CPU(obj);
+    uint16_t value;
+
+    if (!visit_type_uint16(v, name, &value, errp)) {
+        return;
+    }
+
+    if (value != cpu->cfg.cboz_blocksize && riscv_cpu_is_vendor(obj)) {
+        cpu_set_prop_err(cpu, name, errp);
+        error_append_hint(errp, "Current '%s' val: %u\n",
+                          name, cpu->cfg.cboz_blocksize);
+        return;
+    }
+
+    cpu_option_add_user_setting(name, value);
+    cpu->cfg.cboz_blocksize = value;
+}
+
+static void prop_cboz_blksize_get(Object *obj, Visitor *v, const char *name,
+                         void *opaque, Error **errp)
+{
+    uint16_t value = RISCV_CPU(obj)->cfg.cboz_blocksize;
+
+    visit_type_uint16(v, name, &value, errp);
+}
+
+static const PropertyInfo prop_cboz_blksize = {
+    .name = "cboz_blocksize",
+    .get = prop_cboz_blksize_get,
+    .set = prop_cboz_blksize_set,
+};
+
 Property riscv_cpu_options[] = {
-    DEFINE_PROP_UINT16("cboz_blocksize", RISCVCPU, cfg.cboz_blocksize, 64),
 
     DEFINE_PROP_END_OF_LIST(),
 };
@@ -2039,6 +2074,7 @@ static Property riscv_cpu_properties[] = {
 
     {.name = "cbom_blocksize", .info = &prop_cbom_blksize},
     {.name = "cbop_blocksize", .info = &prop_cbop_blksize},
+    {.name = "cboz_blocksize", .info = &prop_cboz_blksize},
 
 #ifndef CONFIG_USER_ONLY
     DEFINE_PROP_UINT64("resetvec", RISCVCPU, env.resetvec, DEFAULT_RSTVEC),
diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c
index 094bc5f47c..748a690b73 100644
--- a/target/riscv/kvm/kvm-cpu.c
+++ b/target/riscv/kvm/kvm-cpu.c
@@ -352,30 +352,6 @@ static KVMCPUConfig kvm_cboz_blocksize = {
     .kvm_reg_id = KVM_REG_RISCV_CONFIG_REG(zicboz_block_size)
 };
 
-static void kvm_cpu_set_cbomz_blksize(Object *obj, Visitor *v,
-                                      const char *name,
-                                      void *opaque, Error **errp)
-{
-    KVMCPUConfig *cbomz_cfg = opaque;
-    RISCVCPU *cpu = RISCV_CPU(obj);
-    uint16_t value, *host_val;
-
-    if (!visit_type_uint16(v, name, &value, errp)) {
-        return;
-    }
-
-    host_val = kvmconfig_get_cfg_addr(cpu, cbomz_cfg);
-
-    if (value != *host_val) {
-        error_report("Unable to set %s to a different value than "
-                     "the host (%u)",
-                     cbomz_cfg->name, *host_val);
-        exit(EXIT_FAILURE);
-    }
-
-    cbomz_cfg->user_set = true;
-}
-
 static void kvm_riscv_update_cpu_cfg_isa_ext(RISCVCPU *cpu, CPUState *cs)
 {
     CPURISCVState *env = &cpu->env;
@@ -493,10 +469,6 @@ static void kvm_riscv_add_cpu_user_properties(Object *cpu_obj)
                             NULL, multi_cfg);
     }
 
-    object_property_add(cpu_obj, "cboz_blocksize", "uint16",
-                        NULL, kvm_cpu_set_cbomz_blksize,
-                        NULL, &kvm_cboz_blocksize);
-
     riscv_cpu_add_kvm_unavail_prop_array(cpu_obj, riscv_cpu_extensions);
     riscv_cpu_add_kvm_unavail_prop_array(cpu_obj, riscv_cpu_vendor_exts);
     riscv_cpu_add_kvm_unavail_prop_array(cpu_obj, riscv_cpu_experimental_exts);