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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: Alistair Francis <alistair.francis@wdc.com>
Subject: [PATCH 7/7] target/riscv: move satp_mode.{map,init} out of CPUConfig
Date: Tue, 18 Feb 2025 17:57:57 +0100	[thread overview]
Message-ID: <20250218165757.554178-8-pbonzini@redhat.com> (raw)
In-Reply-To: <20250218165757.554178-1-pbonzini@redhat.com>

They are used to provide the nice QOM properties for svNN,
but the canonical source of the CPU configuration is now
cpu->cfg.max_satp_mode.  Store them in the ArchCPU struct.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/riscv/cpu.h     | 14 ++++++++++++++
 target/riscv/cpu_cfg.h | 14 --------------
 target/riscv/cpu.c     | 32 ++++++++++++++++----------------
 3 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index f9b223bf8a7..df7a05e7d15 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -492,6 +492,19 @@ struct CPUArchState {
     uint64_t rnmi_excpvec;
 };
 
+/*
+ * map is a 16-bit bitmap: the most significant set bit in map is the maximum
+ * satp mode that is supported. It may be chosen by the user and must respect
+ * what qemu implements (valid_1_10_32/64) and what the hw is capable of
+ * (supported bitmap below).
+ *
+ * init is a 16-bit bitmap used to make sure the user selected a correct
+ * configuration as per the specification.
+ */
+typedef struct {
+    uint16_t map, init;
+} RISCVSATPModes;
+
 /*
  * RISCVCPU:
  * @env: #CPURISCVState
@@ -508,6 +521,7 @@ struct ArchCPU {
 
     /* Configuration Settings */
     RISCVCPUConfig cfg;
+    RISCVSATPModes satp_modes;
 
     QEMUTimer *pmu_timer;
     /* A bitmask of Available programmable counters */
diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h
index 1d7fff8decd..7b7067d5bee 100644
--- a/target/riscv/cpu_cfg.h
+++ b/target/riscv/cpu_cfg.h
@@ -21,19 +21,6 @@
 #ifndef RISCV_CPU_CFG_H
 #define RISCV_CPU_CFG_H
 
-/*
- * map is a 16-bit bitmap: the most significant set bit in map is the maximum
- * satp mode that is supported. It may be chosen by the user and must respect
- * what qemu implements (valid_1_10_32/64) and what the hw is capable of
- * (supported bitmap below).
- *
- * init is a 16-bit bitmap used to make sure the user selected a correct
- * configuration as per the specification.
- */
-typedef struct {
-    uint16_t map, init;
-} RISCVSATPMap;
-
 struct RISCVCPUConfig {
     bool ext_zba;
     bool ext_zbb;
@@ -191,7 +178,6 @@ struct RISCVCPUConfig {
 
 #ifndef CONFIG_USER_ONLY
     int8_t max_satp_mode;
-    RISCVSATPMap satp_mode;
 #endif
 };
 
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 86a048b62c5..8ab7fe2e286 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -1197,8 +1197,8 @@ static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
         return;
     }
 
-    if (cpu->cfg.satp_mode.map == 0) {
-        if (cpu->cfg.satp_mode.init == 0) {
+    if (cpu->satp_modes.map == 0) {
+        if (cpu->satp_modes.init == 0) {
             /* If unset by the user, we fallback to the default satp mode. */
             set_satp_mode_default_map(cpu);
         } else {
@@ -1208,7 +1208,7 @@ static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
              * valid_vm_1_10_32/64.
              */
             for (int i = 1; i < 16; ++i) {
-                if ((cpu->cfg.satp_mode.init & (1 << i)) &&
+                if ((cpu->satp_modes.init & (1 << i)) &&
                     supported & (1 << i)) {
                     for (int j = i - 1; j >= 0; --j) {
                         if (supported & (1 << j)) {
@@ -1222,7 +1222,7 @@ static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
         return;
     }
 
-    satp_mode_map_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map);
+    satp_mode_map_max = satp_mode_max_from_map(cpu->satp_modes.map);
 
     /* Make sure the user asked for a supported configuration (HW and qemu) */
     if (satp_mode_map_max > cpu->cfg.max_satp_mode) {
@@ -1238,8 +1238,8 @@ static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
      */
     if (!rv32) {
         for (int i = satp_mode_map_max - 1; i >= 0; --i) {
-            if (!(cpu->cfg.satp_mode.map & (1 << i)) &&
-                (cpu->cfg.satp_mode.init & (1 << i)) &&
+            if (!(cpu->satp_modes.map & (1 << i)) &&
+                (cpu->satp_modes.init & (1 << i)) &&
                 (supported & (1 << i))) {
                 error_setg(errp, "cannot disable %s satp mode if %s "
                            "is enabled", satp_mode_str(i, false),
@@ -1327,11 +1327,11 @@ bool riscv_cpu_accelerator_compatible(RISCVCPU *cpu)
 static void cpu_riscv_get_satp(Object *obj, Visitor *v, const char *name,
                                void *opaque, Error **errp)
 {
-    RISCVSATPMap *satp_map = opaque;
+    RISCVSATPModes *satp_modes = opaque;
     uint8_t satp = satp_mode_from_str(name);
     bool value;
 
-    value = satp_map->map & (1 << satp);
+    value = satp_modes->map & (1 << satp);
 
     visit_type_bool(v, name, &value, errp);
 }
@@ -1339,7 +1339,7 @@ static void cpu_riscv_get_satp(Object *obj, Visitor *v, const char *name,
 static void cpu_riscv_set_satp(Object *obj, Visitor *v, const char *name,
                                void *opaque, Error **errp)
 {
-    RISCVSATPMap *satp_map = opaque;
+    RISCVSATPModes *satp_modes = opaque;
     uint8_t satp = satp_mode_from_str(name);
     bool value;
 
@@ -1347,8 +1347,8 @@ static void cpu_riscv_set_satp(Object *obj, Visitor *v, const char *name,
         return;
     }
 
-    satp_map->map = deposit32(satp_map->map, satp, 1, value);
-    satp_map->init |= 1 << satp;
+    satp_modes->map = deposit32(satp_modes->map, satp, 1, value);
+    satp_modes->init |= 1 << satp;
 }
 
 void riscv_add_satp_mode_properties(Object *obj)
@@ -1357,16 +1357,16 @@ void riscv_add_satp_mode_properties(Object *obj)
 
     if (cpu->env.misa_mxl == MXL_RV32) {
         object_property_add(obj, "sv32", "bool", cpu_riscv_get_satp,
-                            cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
+                            cpu_riscv_set_satp, NULL, &cpu->satp_modes);
     } else {
         object_property_add(obj, "sv39", "bool", cpu_riscv_get_satp,
-                            cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
+                            cpu_riscv_set_satp, NULL, &cpu->satp_modes);
         object_property_add(obj, "sv48", "bool", cpu_riscv_get_satp,
-                            cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
+                            cpu_riscv_set_satp, NULL, &cpu->satp_modes);
         object_property_add(obj, "sv57", "bool", cpu_riscv_get_satp,
-                            cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
+                            cpu_riscv_set_satp, NULL, &cpu->satp_modes);
         object_property_add(obj, "sv64", "bool", cpu_riscv_get_satp,
-                            cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
+                            cpu_riscv_set_satp, NULL, &cpu->satp_modes);
     }
 }
 
-- 
2.48.1



  parent reply	other threads:[~2025-02-18 16:59 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-18 16:57 [PATCH 0/7] target/riscv: store max SATP mode as a single integer in RISCVCPUConfig Paolo Bonzini
2025-02-18 16:57 ` [PATCH 1/7] hw/riscv: acpi: only create RHCT MMU entry for supported types Paolo Bonzini
2025-03-06  1:13   ` Alistair Francis
2025-03-06 12:11     ` Paolo Bonzini
2025-02-18 16:57 ` [PATCH 2/7] target/riscv: env->misa_mxl is a constant Paolo Bonzini
2025-03-06  1:16   ` Alistair Francis
2025-03-06 13:00     ` Paolo Bonzini
2025-03-07  0:44       ` Alistair Francis
2025-03-10 17:34         ` Paolo Bonzini
2025-03-10 22:18           ` Alistair Francis
2025-03-11  6:17             ` Paolo Bonzini
2025-03-19  1:35               ` Alistair Francis
2025-02-18 16:57 ` [PATCH 3/7] target/riscv: assert argument to set_satp_mode_max_supported is valid Paolo Bonzini
2025-03-06  1:23   ` Alistair Francis
2025-02-18 16:57 ` [PATCH 4/7] target/riscv: cpu: store max SATP mode as a single integer Paolo Bonzini
2025-03-06  1:30   ` Alistair Francis
2025-03-06  2:57   ` Alistair Francis
2025-02-18 16:57 ` [PATCH 5/7] target/riscv: update max_satp_mode based on QOM properties Paolo Bonzini
2025-03-06  1:41   ` Alistair Francis
2025-02-18 16:57 ` [PATCH 6/7] target/riscv: remove supported from RISCVSATPMap Paolo Bonzini
2025-03-06  2:39   ` Alistair Francis
2025-02-18 16:57 ` Paolo Bonzini [this message]
2025-03-06  2:42   ` [PATCH 7/7] target/riscv: move satp_mode.{map, init} out of CPUConfig Alistair Francis

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