[Qemu-devel] [PATCH 06/50] target-arm: make cpu-qom.h not target specific

[Paolo Bonzini <pbonzini@redhat.com>]

Make ARMCPU an opaque type within cpu-qom.h, and move all definitions of
private methods, as well as all type definitions that require knowledge
of the layout to cpu.h.  This helps making files independent of NEED_CPU_H
if they only need to pass around CPU pointers.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target-arm/cpu-qom.h | 178 +-------------------------------------------------
 target-arm/cpu.h     | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 179 insertions(+), 178 deletions(-)

diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index 1061c08..3991173 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -22,6 +22,8 @@
 
 #include "qom/cpu.h"
 
+struct arm_boot_info;
+
 #define TYPE_ARM_CPU "arm-cpu"
 
 #define ARM_CPU_CLASS(klass) \
@@ -47,145 +49,7 @@ typedef struct ARMCPUClass {
     void (*parent_reset)(CPUState *cpu);
 } ARMCPUClass;
 
-/**
- * ARMCPU:
- * @env: #CPUARMState
- *
- * An ARM CPU core.
- */
-typedef struct ARMCPU {
-    /*< private >*/
-    CPUState parent_obj;
-    /*< public >*/
-
-    CPUARMState env;
-
-    /* Coprocessor information */
-    GHashTable *cp_regs;
-    /* For marshalling (mostly coprocessor) register state between the
-     * kernel and QEMU (for KVM) and between two QEMUs (for migration),
-     * we use these arrays.
-     */
-    /* List of register indexes managed via these arrays; (full KVM style
-     * 64 bit indexes, not CPRegInfo 32 bit indexes)
-     */
-    uint64_t *cpreg_indexes;
-    /* Values of the registers (cpreg_indexes[i]'s value is cpreg_values[i]) */
-    uint64_t *cpreg_values;
-    /* Length of the indexes, values, reset_values arrays */
-    int32_t cpreg_array_len;
-    /* These are used only for migration: incoming data arrives in
-     * these fields and is sanity checked in post_load before copying
-     * to the working data structures above.
-     */
-    uint64_t *cpreg_vmstate_indexes;
-    uint64_t *cpreg_vmstate_values;
-    int32_t cpreg_vmstate_array_len;
-
-    /* Timers used by the generic (architected) timer */
-    QEMUTimer *gt_timer[NUM_GTIMERS];
-    /* GPIO outputs for generic timer */
-    qemu_irq gt_timer_outputs[NUM_GTIMERS];
-
-    /* MemoryRegion to use for secure physical accesses */
-    MemoryRegion *secure_memory;
-
-    /* 'compatible' string for this CPU for Linux device trees */
-    const char *dtb_compatible;
-
-    /* PSCI version for this CPU
-     * Bits[31:16] = Major Version
-     * Bits[15:0] = Minor Version
-     */
-    uint32_t psci_version;
-
-    /* Should CPU start in PSCI powered-off state? */
-    bool start_powered_off;
-    /* CPU currently in PSCI powered-off state */
-    bool powered_off;
-    /* CPU has security extension */
-    bool has_el3;
-
-    /* CPU has memory protection unit */
-    bool has_mpu;
-    /* PMSAv7 MPU number of supported regions */
-    uint32_t pmsav7_dregion;
-
-    /* PSCI conduit used to invoke PSCI methods
-     * 0 - disabled, 1 - smc, 2 - hvc
-     */
-    uint32_t psci_conduit;
-
-    /* [QEMU_]KVM_ARM_TARGET_* constant for this CPU, or
-     * QEMU_KVM_ARM_TARGET_NONE if the kernel doesn't support this CPU type.
-     */
-    uint32_t kvm_target;
-
-    /* KVM init features for this CPU */
-    uint32_t kvm_init_features[7];
-
-    /* Uniprocessor system with MP extensions */
-    bool mp_is_up;
-
-    /* The instance init functions for implementation-specific subclasses
-     * set these fields to specify the implementation-dependent values of
-     * various constant registers and reset values of non-constant
-     * registers.
-     * Some of these might become QOM properties eventually.
-     * Field names match the official register names as defined in the
-     * ARMv7AR ARM Architecture Reference Manual. A reset_ prefix
-     * is used for reset values of non-constant registers; no reset_
-     * prefix means a constant register.
-     */
-    uint32_t midr;
-    uint32_t revidr;
-    uint32_t reset_fpsid;
-    uint32_t mvfr0;
-    uint32_t mvfr1;
-    uint32_t mvfr2;
-    uint32_t ctr;
-    uint32_t reset_sctlr;
-    uint32_t id_pfr0;
-    uint32_t id_pfr1;
-    uint32_t id_dfr0;
-    uint32_t pmceid0;
-    uint32_t pmceid1;
-    uint32_t id_afr0;
-    uint32_t id_mmfr0;
-    uint32_t id_mmfr1;
-    uint32_t id_mmfr2;
-    uint32_t id_mmfr3;
-    uint32_t id_mmfr4;
-    uint32_t id_isar0;
-    uint32_t id_isar1;
-    uint32_t id_isar2;
-    uint32_t id_isar3;
-    uint32_t id_isar4;
-    uint32_t id_isar5;
-    uint64_t id_aa64pfr0;
-    uint64_t id_aa64pfr1;
-    uint64_t id_aa64dfr0;
-    uint64_t id_aa64dfr1;
-    uint64_t id_aa64afr0;
-    uint64_t id_aa64afr1;
-    uint64_t id_aa64isar0;
-    uint64_t id_aa64isar1;
-    uint64_t id_aa64mmfr0;
-    uint64_t id_aa64mmfr1;
-    uint32_t dbgdidr;
-    uint32_t clidr;
-    uint64_t mp_affinity; /* MP ID without feature bits */
-    /* The elements of this array are the CCSIDR values for each cache,
-     * in the order L1DCache, L1ICache, L2DCache, L2ICache, etc.
-     */
-    uint32_t ccsidr[16];
-    uint64_t reset_cbar;
-    uint32_t reset_auxcr;
-    bool reset_hivecs;
-    /* DCZ blocksize, in log_2(words), ie low 4 bits of DCZID_EL0 */
-    uint32_t dcz_blocksize;
-    uint64_t rvbar;
-} ARMCPU;
+typedef struct ARMCPU ARMCPU;
 
 #define TYPE_AARCH64_CPU "aarch64-cpu"
 #define AARCH64_CPU_CLASS(klass) \
@@ -199,40 +63,9 @@ typedef struct AArch64CPUClass {
     /*< public >*/
 } AArch64CPUClass;
 
-static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
-{
-    return container_of(env, ARMCPU, env);
-}
-
-#define ENV_GET_CPU(e) CPU(arm_env_get_cpu(e))
-
-#define ENV_OFFSET offsetof(ARMCPU, env)
-
-#ifndef CONFIG_USER_ONLY
-extern const struct VMStateDescription vmstate_arm_cpu;
-#endif
-
 void register_cp_regs_for_features(ARMCPU *cpu);
 void init_cpreg_list(ARMCPU *cpu);
 
-void arm_cpu_do_interrupt(CPUState *cpu);
-void arm_v7m_cpu_do_interrupt(CPUState *cpu);
-bool arm_cpu_exec_interrupt(CPUState *cpu, int int_req);
-
-void arm_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
-                        int flags);
-
-hwaddr arm_cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
-                                         MemTxAttrs *attrs);
-
-int arm_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
-int arm_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
-
-int arm_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs,
-                             int cpuid, void *opaque);
-int arm_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
-                             int cpuid, void *opaque);
-
 /* Callback functions for the generic timer's timers. */
 void arm_gt_ptimer_cb(void *opaque);
 void arm_gt_vtimer_cb(void *opaque);
@@ -252,9 +85,4 @@ void arm_gt_stimer_cb(void *opaque);
 #define ARM64_AFFINITY_MASK \
     (ARM_AFF0_MASK|ARM_AFF1_MASK|ARM_AFF2_MASK|ARM_AFF3_MASK)
 
-#ifdef TARGET_AARCH64
-int aarch64_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
-int aarch64_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
-#endif
-
 #endif
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 066ff67..bf6904c 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -34,6 +34,7 @@
 #define CPUArchState struct CPUARMState
 
 #include "qemu-common.h"
+#include "cpu-qom.h"
 #include "exec/cpu-defs.h"
 
 #include "fpu/softfloat.h"
@@ -91,8 +92,6 @@
 #define ARM_CPU_VIRQ 2
 #define ARM_CPU_VFIQ 3
 
-struct arm_boot_info;
-
 #define NB_MMU_MODES 7
 #define TARGET_INSN_START_EXTRA_WORDS 1
 
@@ -504,7 +503,181 @@ typedef struct CPUARMState {
     const struct arm_boot_info *boot_info;
 } CPUARMState;
 
-#include "cpu-qom.h"
+/**
+ * ARMCPU:
+ * @env: #CPUARMState
+ *
+ * An ARM CPU core.
+ */
+struct ARMCPU {
+    /*< private >*/
+    CPUState parent_obj;
+    /*< public >*/
+
+    CPUARMState env;
+
+    /* Coprocessor information */
+    GHashTable *cp_regs;
+    /* For marshalling (mostly coprocessor) register state between the
+     * kernel and QEMU (for KVM) and between two QEMUs (for migration),
+     * we use these arrays.
+     */
+    /* List of register indexes managed via these arrays; (full KVM style
+     * 64 bit indexes, not CPRegInfo 32 bit indexes)
+     */
+    uint64_t *cpreg_indexes;
+    /* Values of the registers (cpreg_indexes[i]'s value is cpreg_values[i]) */
+    uint64_t *cpreg_values;
+    /* Length of the indexes, values, reset_values arrays */
+    int32_t cpreg_array_len;
+    /* These are used only for migration: incoming data arrives in
+     * these fields and is sanity checked in post_load before copying
+     * to the working data structures above.
+     */
+    uint64_t *cpreg_vmstate_indexes;
+    uint64_t *cpreg_vmstate_values;
+    int32_t cpreg_vmstate_array_len;
+
+    /* Timers used by the generic (architected) timer */
+    QEMUTimer *gt_timer[NUM_GTIMERS];
+    /* GPIO outputs for generic timer */
+    qemu_irq gt_timer_outputs[NUM_GTIMERS];
+
+    /* MemoryRegion to use for secure physical accesses */
+    MemoryRegion *secure_memory;
+
+    /* 'compatible' string for this CPU for Linux device trees */
+    const char *dtb_compatible;
+
+    /* PSCI version for this CPU
+     * Bits[31:16] = Major Version
+     * Bits[15:0] = Minor Version
+     */
+    uint32_t psci_version;
+
+    /* Should CPU start in PSCI powered-off state? */
+    bool start_powered_off;
+    /* CPU currently in PSCI powered-off state */
+    bool powered_off;
+    /* CPU has security extension */
+    bool has_el3;
+
+    /* CPU has memory protection unit */
+    bool has_mpu;
+    /* PMSAv7 MPU number of supported regions */
+    uint32_t pmsav7_dregion;
+
+    /* PSCI conduit used to invoke PSCI methods
+     * 0 - disabled, 1 - smc, 2 - hvc
+     */
+    uint32_t psci_conduit;
+
+    /* [QEMU_]KVM_ARM_TARGET_* constant for this CPU, or
+     * QEMU_KVM_ARM_TARGET_NONE if the kernel doesn't support this CPU type.
+     */
+    uint32_t kvm_target;
+
+    /* KVM init features for this CPU */
+    uint32_t kvm_init_features[7];
+
+    /* Uniprocessor system with MP extensions */
+    bool mp_is_up;
+
+    /* The instance init functions for implementation-specific subclasses
+     * set these fields to specify the implementation-dependent values of
+     * various constant registers and reset values of non-constant
+     * registers.
+     * Some of these might become QOM properties eventually.
+     * Field names match the official register names as defined in the
+     * ARMv7AR ARM Architecture Reference Manual. A reset_ prefix
+     * is used for reset values of non-constant registers; no reset_
+     * prefix means a constant register.
+     */
+    uint32_t midr;
+    uint32_t revidr;
+    uint32_t reset_fpsid;
+    uint32_t mvfr0;
+    uint32_t mvfr1;
+    uint32_t mvfr2;
+    uint32_t ctr;
+    uint32_t reset_sctlr;
+    uint32_t id_pfr0;
+    uint32_t id_pfr1;
+    uint32_t id_dfr0;
+    uint32_t pmceid0;
+    uint32_t pmceid1;
+    uint32_t id_afr0;
+    uint32_t id_mmfr0;
+    uint32_t id_mmfr1;
+    uint32_t id_mmfr2;
+    uint32_t id_mmfr3;
+    uint32_t id_mmfr4;
+    uint32_t id_isar0;
+    uint32_t id_isar1;
+    uint32_t id_isar2;
+    uint32_t id_isar3;
+    uint32_t id_isar4;
+    uint32_t id_isar5;
+    uint64_t id_aa64pfr0;
+    uint64_t id_aa64pfr1;
+    uint64_t id_aa64dfr0;
+    uint64_t id_aa64dfr1;
+    uint64_t id_aa64afr0;
+    uint64_t id_aa64afr1;
+    uint64_t id_aa64isar0;
+    uint64_t id_aa64isar1;
+    uint64_t id_aa64mmfr0;
+    uint64_t id_aa64mmfr1;
+    uint32_t dbgdidr;
+    uint32_t clidr;
+    uint64_t mp_affinity; /* MP ID without feature bits */
+    /* The elements of this array are the CCSIDR values for each cache,
+     * in the order L1DCache, L1ICache, L2DCache, L2ICache, etc.
+     */
+    uint32_t ccsidr[16];
+    uint64_t reset_cbar;
+    uint32_t reset_auxcr;
+    bool reset_hivecs;
+    /* DCZ blocksize, in log_2(words), ie low 4 bits of DCZID_EL0 */
+    uint32_t dcz_blocksize;
+    uint64_t rvbar;
+};
+
+static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
+{
+    return container_of(env, ARMCPU, env);
+}
+
+#define ENV_GET_CPU(e) CPU(arm_env_get_cpu(e))
+
+#define ENV_OFFSET offsetof(ARMCPU, env)
+
+#ifndef CONFIG_USER_ONLY
+extern const struct VMStateDescription vmstate_arm_cpu;
+#endif
+
+void arm_cpu_do_interrupt(CPUState *cpu);
+void arm_v7m_cpu_do_interrupt(CPUState *cpu);
+bool arm_cpu_exec_interrupt(CPUState *cpu, int int_req);
+
+void arm_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
+                        int flags);
+
+hwaddr arm_cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
+                                         MemTxAttrs *attrs);
+
+int arm_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
+int arm_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
+
+int arm_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs,
+                             int cpuid, void *opaque);
+int arm_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
+                             int cpuid, void *opaque);
+
+#ifdef TARGET_AARCH64
+int aarch64_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
+int aarch64_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
+#endif
 
 ARMCPU *cpu_arm_init(const char *cpu_model);
 int cpu_arm_exec(CPUState *cpu);
-- 
1.8.3.1