exec: Change cpu_memory_rw_debug() argument to CPUState

Propagate X86CPU in kvmvapic for simplicity.

Signed-off-by: Andreas Färber <[email protected]>

cpus.c

@@ -1285,7 +1285,6 @@ void qmp_memsave(int64_t addr, int64_t size, const char *filename,
 {
     FILE *f;
     uint32_t l;
-    CPUArchState *env;
     CPUState *cpu;
     uint8_t buf[1024];
 
@@ -1299,7 +1298,6 @@ void qmp_memsave(int64_t addr, int64_t size, const char *filename,
                   "a CPU number");
         return;
     }
-    env = cpu->env_ptr;
 
     f = fopen(filename, "wb");
     if (!f) {
@@ -1311,7 +1309,7 @@ void qmp_memsave(int64_t addr, int64_t size, const char *filename,
         l = sizeof(buf);
         if (l > size)
             l = size;
-        cpu_memory_rw_debug(env, addr, buf, l, 0);
+        cpu_memory_rw_debug(cpu, addr, buf, l, 0);
         if (fwrite(buf, 1, l, f) != l) {
             error_set(errp, QERR_IO_ERROR);
             goto exit;

disas.c

@@ -39,7 +39,7 @@ target_read_memory (bfd_vma memaddr,
 {
     CPUDebug *s = container_of(info, CPUDebug, info);
 
-    cpu_memory_rw_debug(s->env, memaddr, myaddr, length, 0);
+    cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
     return 0;
 }
 
@@ -392,7 +392,7 @@ monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
     if (monitor_disas_is_physical) {
         cpu_physical_memory_read(memaddr, myaddr, length);
     } else {
-        cpu_memory_rw_debug(s->env, memaddr,myaddr, length, 0);
+        cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
     }
     return 0;
 }

exec.c

@@ -1835,7 +1835,7 @@ MemoryRegion *get_system_io(void)
 
 /* physical memory access (slow version, mainly for debug) */
 #if defined(CONFIG_USER_ONLY)
-int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
+int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
                         uint8_t *buf, int len, int is_write)
 {
     int l, flags;
@@ -2606,7 +2606,7 @@ void stq_be_phys(hwaddr addr, uint64_t val)
 }
 
 /* virtual memory access for debug (includes writing to ROM) */
-int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
+int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
                         uint8_t *buf, int len, int is_write)
 {
     int l;
@@ -2615,7 +2615,7 @@ int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
 
     while (len > 0) {
         page = addr & TARGET_PAGE_MASK;
-        phys_addr = cpu_get_phys_page_debug(ENV_GET_CPU(env), page);
+        phys_addr = cpu_get_phys_page_debug(cpu, page);
         /* if no physical page mapped, return an error */
         if (phys_addr == -1)
             return -1;

gdbstub.c

@@ -46,7 +46,7 @@
 static inline int target_memory_rw_debug(CPUArchState *env, target_ulong addr,
                                          uint8_t *buf, int len, int is_write)
 {
-    return cpu_memory_rw_debug(env, addr, buf, len, is_write);
+    return cpu_memory_rw_debug(ENV_GET_CPU(env), addr, buf, len, is_write);
 }
 #else
 /* target_memory_rw_debug() defined in cpu.h */

hw/i386/kvmvapic.c

@@ -188,9 +188,10 @@ static bool opcode_matches(uint8_t *opcode, const TPRInstruction *instr)
          modrm_reg(opcode[1]) == instr->modrm_reg);
 }
 
-static int evaluate_tpr_instruction(VAPICROMState *s, CPUX86State *env,
+static int evaluate_tpr_instruction(VAPICROMState *s, X86CPU *cpu,
                                     target_ulong *pip, TPRAccess access)
 {
+    CPUState *cs = CPU(cpu);
     const TPRInstruction *instr;
     target_ulong ip = *pip;
     uint8_t opcode[2];
@@ -211,7 +212,7 @@ static int evaluate_tpr_instruction(VAPICROMState *s, CPUX86State *env,
      * RSP, used by the patched instruction, is zero, so the guest gets a
      * double fault and dies.
      */
-    if (env->regs[R_ESP] == 0) {
+    if (cpu->env.regs[R_ESP] == 0) {
         return -1;
     }
 
@@ -226,7 +227,7 @@ static int evaluate_tpr_instruction(VAPICROMState *s, CPUX86State *env,
             if (instr->access != access) {
                 continue;
             }
-            if (cpu_memory_rw_debug(env, ip - instr->length, opcode,
+            if (cpu_memory_rw_debug(cs, ip - instr->length, opcode,
                                     sizeof(opcode), 0) < 0) {
                 return -1;
             }
@@ -237,7 +238,7 @@ static int evaluate_tpr_instruction(VAPICROMState *s, CPUX86State *env,
         }
         return -1;
     } else {
-        if (cpu_memory_rw_debug(env, ip, opcode, sizeof(opcode), 0) < 0) {
+        if (cpu_memory_rw_debug(cs, ip, opcode, sizeof(opcode), 0) < 0) {
             return -1;
         }
         for (i = 0; i < ARRAY_SIZE(tpr_instr); i++) {
@@ -254,7 +255,7 @@ static int evaluate_tpr_instruction(VAPICROMState *s, CPUX86State *env,
      * Grab the virtual TPR address from the instruction
      * and update the cached values.
      */
-    if (cpu_memory_rw_debug(env, ip + instr->addr_offset,
+    if (cpu_memory_rw_debug(cs, ip + instr->addr_offset,
                             (void *)&real_tpr_addr,
                             sizeof(real_tpr_addr), 0) < 0) {
         return -1;
@@ -334,26 +335,27 @@ static int update_rom_mapping(VAPICROMState *s, CPUX86State *env, target_ulong i
  * cannot be accessed or is considered invalid. This also ensures that we are
  * not patching the wrong guest.
  */
-static int get_kpcr_number(CPUX86State *env)
+static int get_kpcr_number(X86CPU *cpu)
 {
+    CPUX86State *env = &cpu->env;
     struct kpcr {
         uint8_t  fill1[0x1c];
         uint32_t self;
         uint8_t  fill2[0x31];
         uint8_t  number;
     } QEMU_PACKED kpcr;
 
-    if (cpu_memory_rw_debug(env, env->segs[R_FS].base,
+    if (cpu_memory_rw_debug(CPU(cpu), env->segs[R_FS].base,
                             (void *)&kpcr, sizeof(kpcr), 0) < 0 ||
         kpcr.self != env->segs[R_FS].base) {
         return -1;
     }
     return kpcr.number;
 }
 
-static int vapic_enable(VAPICROMState *s, CPUX86State *env)
+static int vapic_enable(VAPICROMState *s, X86CPU *cpu)
 {
-    int cpu_number = get_kpcr_number(env);
+    int cpu_number = get_kpcr_number(cpu);
     hwaddr vapic_paddr;
     static const uint8_t enabled = 1;
 
@@ -364,26 +366,26 @@ static int vapic_enable(VAPICROMState *s, CPUX86State *env)
         (((hwaddr)cpu_number) << VAPIC_CPU_SHIFT);
     cpu_physical_memory_rw(vapic_paddr + offsetof(VAPICState, enabled),
                            (void *)&enabled, sizeof(enabled), 1);
-    apic_enable_vapic(env->apic_state, vapic_paddr);
+    apic_enable_vapic(cpu->env.apic_state, vapic_paddr);
 
     s->state = VAPIC_ACTIVE;
 
     return 0;
 }
 
-static void patch_byte(CPUX86State *env, target_ulong addr, uint8_t byte)
+static void patch_byte(X86CPU *cpu, target_ulong addr, uint8_t byte)
 {
-    cpu_memory_rw_debug(env, addr, &byte, 1, 1);
+    cpu_memory_rw_debug(CPU(cpu), addr, &byte, 1, 1);
 }
 
-static void patch_call(VAPICROMState *s, CPUX86State *env, target_ulong ip,
+static void patch_call(VAPICROMState *s, X86CPU *cpu, target_ulong ip,
                        uint32_t target)
 {
     uint32_t offset;
 
     offset = cpu_to_le32(target - ip - 5);
-    patch_byte(env, ip, 0xe8); /* call near */
-    cpu_memory_rw_debug(env, ip + 1, (void *)&offset, sizeof(offset), 1);
+    patch_byte(cpu, ip, 0xe8); /* call near */
+    cpu_memory_rw_debug(CPU(cpu), ip + 1, (void *)&offset, sizeof(offset), 1);
 }
 
 static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
@@ -411,32 +413,32 @@ static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
 
     pause_all_vcpus();
 
-    cpu_memory_rw_debug(env, ip, opcode, sizeof(opcode), 0);
+    cpu_memory_rw_debug(cs, ip, opcode, sizeof(opcode), 0);
 
     switch (opcode[0]) {
     case 0x89: /* mov r32 to r/m32 */
-        patch_byte(env, ip, 0x50 + modrm_reg(opcode[1]));  /* push reg */
-        patch_call(s, env, ip + 1, handlers->set_tpr);
+        patch_byte(cpu, ip, 0x50 + modrm_reg(opcode[1]));  /* push reg */
+        patch_call(s, cpu, ip + 1, handlers->set_tpr);
         break;
     case 0x8b: /* mov r/m32 to r32 */
-        patch_byte(env, ip, 0x90);
-        patch_call(s, env, ip + 1, handlers->get_tpr[modrm_reg(opcode[1])]);
+        patch_byte(cpu, ip, 0x90);
+        patch_call(s, cpu, ip + 1, handlers->get_tpr[modrm_reg(opcode[1])]);
         break;
     case 0xa1: /* mov abs to eax */
-        patch_call(s, env, ip, handlers->get_tpr[0]);
+        patch_call(s, cpu, ip, handlers->get_tpr[0]);
         break;
     case 0xa3: /* mov eax to abs */
-        patch_call(s, env, ip, handlers->set_tpr_eax);
+        patch_call(s, cpu, ip, handlers->set_tpr_eax);
         break;
     case 0xc7: /* mov imm32, r/m32 (c7/0) */
-        patch_byte(env, ip, 0x68);  /* push imm32 */
-        cpu_memory_rw_debug(env, ip + 6, (void *)&imm32, sizeof(imm32), 0);
-        cpu_memory_rw_debug(env, ip + 1, (void *)&imm32, sizeof(imm32), 1);
-        patch_call(s, env, ip + 5, handlers->set_tpr);
+        patch_byte(cpu, ip, 0x68);  /* push imm32 */
+        cpu_memory_rw_debug(cs, ip + 6, (void *)&imm32, sizeof(imm32), 0);
+        cpu_memory_rw_debug(cs, ip + 1, (void *)&imm32, sizeof(imm32), 1);
+        patch_call(s, cpu, ip + 5, handlers->set_tpr);
         break;
     case 0xff: /* push r/m32 */
-        patch_byte(env, ip, 0x50); /* push eax */
-        patch_call(s, env, ip + 1, handlers->get_tpr_stack);
+        patch_byte(cpu, ip, 0x50); /* push eax */
+        patch_call(s, cpu, ip + 1, handlers->get_tpr_stack);
         break;
     default:
         abort();
@@ -460,16 +462,16 @@ void vapic_report_tpr_access(DeviceState *dev, CPUState *cs, target_ulong ip,
 
     cpu_synchronize_state(cs);
 
-    if (evaluate_tpr_instruction(s, env, &ip, access) < 0) {
+    if (evaluate_tpr_instruction(s, cpu, &ip, access) < 0) {
         if (s->state == VAPIC_ACTIVE) {
-            vapic_enable(s, env);
+            vapic_enable(s, cpu);
         }
         return;
     }
     if (update_rom_mapping(s, env, ip) < 0) {
         return;
     }
-    if (vapic_enable(s, env) < 0) {
+    if (vapic_enable(s, cpu) < 0) {
         return;
     }
     patch_instruction(s, cpu, ip);
@@ -669,8 +671,8 @@ static void vapic_write(void *opaque, hwaddr addr, uint64_t data,
              * accurate.
              */
             pause_all_vcpus();
-            patch_byte(env, env->eip - 2, 0x66);
-            patch_byte(env, env->eip - 1, 0x90);
+            patch_byte(cpu, env->eip - 2, 0x66);
+            patch_byte(cpu, env->eip - 1, 0x90);
             resume_all_vcpus();
         }
 
@@ -683,7 +685,7 @@ static void vapic_write(void *opaque, hwaddr addr, uint64_t data,
         if (find_real_tpr_addr(s, env) < 0) {
             break;
         }
-        vapic_enable(s, env);
+        vapic_enable(s, cpu);
         break;
     default:
     case 4:
@@ -725,7 +727,7 @@ static void do_vapic_enable(void *data)
     VAPICROMState *s = data;
     X86CPU *cpu = X86_CPU(first_cpu);
 
-    vapic_enable(s, &cpu->env);
+    vapic_enable(s, cpu);
 }
 
 static int vapic_post_load(void *opaque, int version_id)

include/exec/cpu-all.h

@@ -22,6 +22,7 @@
 #include "qemu-common.h"
 #include "exec/cpu-common.h"
 #include "qemu/thread.h"
+#include "qom/cpu.h"
 
 /* some important defines:
  *
@@ -483,7 +484,7 @@ void qemu_mutex_lock_ramlist(void);
 void qemu_mutex_unlock_ramlist(void);
 #endif /* !CONFIG_USER_ONLY */
 
-int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
+int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
                         uint8_t *buf, int len, int is_write);
 
 #endif /* CPU_ALL_H */

include/exec/softmmu-semi.h

@@ -13,14 +13,14 @@ static inline uint32_t softmmu_tget32(CPUArchState *env, uint32_t addr)
 {
     uint32_t val;
 
-    cpu_memory_rw_debug(env, addr, (uint8_t *)&val, 4, 0);
+    cpu_memory_rw_debug(ENV_GET_CPU(env), addr, (uint8_t *)&val, 4, 0);
     return tswap32(val);
 }
 static inline uint32_t softmmu_tget8(CPUArchState *env, uint32_t addr)
 {
     uint8_t val;
 
-    cpu_memory_rw_debug(env, addr, &val, 1, 0);
+    cpu_memory_rw_debug(ENV_GET_CPU(env), addr, &val, 1, 0);
     return val;
 }
 
@@ -31,7 +31,7 @@ static inline uint32_t softmmu_tget8(CPUArchState *env, uint32_t addr)
 static inline void softmmu_tput32(CPUArchState *env, uint32_t addr, uint32_t val)
 {
     val = tswap32(val);
-    cpu_memory_rw_debug(env, addr, (uint8_t *)&val, 4, 1);
+    cpu_memory_rw_debug(ENV_GET_CPU(env), addr, (uint8_t *)&val, 4, 1);
 }
 #define put_user_u32(arg, p) ({ softmmu_tput32(env, p, arg) ; 0; })
 #define put_user_ual(arg, p) put_user_u32(arg, p)
@@ -42,8 +42,9 @@ static void *softmmu_lock_user(CPUArchState *env, uint32_t addr, uint32_t len,
     uint8_t *p;
     /* TODO: Make this something that isn't fixed size.  */
     p = malloc(len);
-    if (p && copy)
-        cpu_memory_rw_debug(env, addr, p, len, 0);
+    if (p && copy) {
+        cpu_memory_rw_debug(ENV_GET_CPU(env), addr, p, len, 0);
+    }
     return p;
 }
 #define lock_user(type, p, len, copy) softmmu_lock_user(env, p, len, copy)
@@ -58,7 +59,7 @@ static char *softmmu_lock_user_string(CPUArchState *env, uint32_t addr)
         return NULL;
     }
     do {
-        cpu_memory_rw_debug(env, addr, &c, 1, 0);
+        cpu_memory_rw_debug(ENV_GET_CPU(env), addr, &c, 1, 0);
         addr++;
         *(p++) = c;
     } while (c);
@@ -68,8 +69,9 @@ static char *softmmu_lock_user_string(CPUArchState *env, uint32_t addr)
 static void softmmu_unlock_user(CPUArchState *env, void *p, target_ulong addr,
                                 target_ulong len)
 {
-    if (len)
-        cpu_memory_rw_debug(env, addr, p, len, 1);
+    if (len) {
+        cpu_memory_rw_debug(ENV_GET_CPU(env), addr, p, len, 1);
+    }
     free(p);
 }
 #define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len)

monitor.c

@@ -1164,7 +1164,7 @@ static void memory_dump(Monitor *mon, int count, int format, int wsize,
             cpu_physical_memory_read(addr, buf, l);
         } else {
             env = mon_get_cpu();
-            if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
+            if (cpu_memory_rw_debug(ENV_GET_CPU(env), addr, buf, l, 0) < 0) {
                 monitor_printf(mon, " Cannot access memory\n");
                 break;
             }

target-arm/arm-semi.c

@@ -161,7 +161,7 @@ static void arm_semi_flen_cb(CPUState *cs, target_ulong ret, target_ulong err)
     /* The size is always stored in big-endian order, extract
        the value. We assume the size always fit in 32 bits.  */
     uint32_t size;
-    cpu_memory_rw_debug(env, env->regs[13]-64+32, (uint8_t *)&size, 4, 0);
+    cpu_memory_rw_debug(cs, env->regs[13]-64+32, (uint8_t *)&size, 4, 0);
     env->regs[0] = be32_to_cpu(size);
 #ifdef CONFIG_USER_ONLY
     ((TaskState *)env->opaque)->swi_errno = err;