[Qemu-devel] [RFC qom-cpu 05/41] cpu: Move mem_io_{pc, vaddr} fields from CPU_COMMON to CPUState

["Andreas Färber" <afaerber@suse.de>]

Reset them.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 exec.c                          |  4 ++--
 hw/i386/kvmvapic.c              |  2 +-
 include/exec/cpu-defs.h         |  7 -------
 include/exec/softmmu_template.h | 10 ++++++----
 include/qom/cpu.h               |  8 ++++++++
 qom/cpu.c                       |  2 ++
 target-i386/helper.c            |  7 +++++--
 translate-all.c                 | 15 ++++++++-------
 8 files changed, 32 insertions(+), 23 deletions(-)

diff --git a/exec.c b/exec.c
index 4354eac..00c44ea 100644
--- a/exec.c
+++ b/exec.c
@@ -1459,7 +1459,7 @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr,
        flushed */
     if (dirty_flags == 0xff) {
         CPUArchState *env = current_cpu->env_ptr;
-        tlb_set_dirty(env, env->mem_io_vaddr);
+        tlb_set_dirty(env, current_cpu->mem_io_vaddr);
     }
 }
 
@@ -1493,7 +1493,7 @@ static void check_watchpoint(int offset, int len_mask, int flags)
         cpu_interrupt(cpu, CPU_INTERRUPT_DEBUG);
         return;
     }
-    vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset;
+    vaddr = (cpu->mem_io_vaddr & TARGET_PAGE_MASK) + offset;
     QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
         if ((vaddr == (wp->vaddr & len_mask) ||
              (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) {
diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
index 7295e5b..01e1117 100644
--- a/hw/i386/kvmvapic.c
+++ b/hw/i386/kvmvapic.c
@@ -408,7 +408,7 @@ static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
     if (!kvm_enabled()) {
         CPUClass *cc = CPU_GET_CLASS(cs);
 
-        cpu_restore_state(env, env->mem_io_pc);
+        cpu_restore_state(env, cs->mem_io_pc);
         cc->get_tb_cpu_state(cs, &current_pc, &current_cs_base,
                              &current_flags);
     }
diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h
index a5c028c..d8e1af8 100644
--- a/include/exec/cpu-defs.h
+++ b/include/exec/cpu-defs.h
@@ -145,13 +145,6 @@ typedef struct CPUWatchpoint {
 #define CPU_TEMP_BUF_NLONGS 128
 #define CPU_COMMON                                                      \
     /* soft mmu support */                                              \
-    /* in order to avoid passing too many arguments to the MMIO         \
-       helpers, we store some rarely used information in the CPU        \
-       context) */                                                      \
-    uintptr_t mem_io_pc; /* host pc at which the memory was             \
-                            accessed */                                 \
-    target_ulong mem_io_vaddr; /* target virtual addr at which the      \
-                                     memory was accessed */             \
     CPU_COMMON_TLB                                                      \
     struct TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE];           \
                                                                         \
diff --git a/include/exec/softmmu_template.h b/include/exec/softmmu_template.h
index 5bbc56a..8b74d4f 100644
--- a/include/exec/softmmu_template.h
+++ b/include/exec/softmmu_template.h
@@ -75,16 +75,17 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(CPUArchState *env,
                                               target_ulong addr,
                                               uintptr_t retaddr)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
     uint64_t val;
     MemoryRegion *mr = iotlb_to_region(physaddr);
 
     physaddr = (physaddr & TARGET_PAGE_MASK) + addr;
-    env->mem_io_pc = retaddr;
+    cpu->mem_io_pc = retaddr;
     if (mr != &io_mem_rom && mr != &io_mem_notdirty && !can_do_io(env)) {
         cpu_io_recompile(env, retaddr);
     }
 
-    env->mem_io_vaddr = addr;
+    cpu->mem_io_vaddr = addr;
     io_mem_read(mr, physaddr, &val, 1 << SHIFT);
     return val;
 }
@@ -196,6 +197,7 @@ static inline void glue(io_write, SUFFIX)(CPUArchState *env,
                                           target_ulong addr,
                                           uintptr_t retaddr)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
     MemoryRegion *mr = iotlb_to_region(physaddr);
 
     physaddr = (physaddr & TARGET_PAGE_MASK) + addr;
@@ -203,8 +205,8 @@ static inline void glue(io_write, SUFFIX)(CPUArchState *env,
         cpu_io_recompile(env, retaddr);
     }
 
-    env->mem_io_vaddr = addr;
-    env->mem_io_pc = retaddr;
+    cpu->mem_io_vaddr = addr;
+    cpu->mem_io_pc = retaddr;
     io_mem_write(mr, physaddr, val, 1 << SHIFT);
 }
 
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 4d974f3..d79466a 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -166,6 +166,8 @@ struct kvm_run;
  * @gdb_num_regs: Number of total registers accessible to GDB.
  * @gdb_num_g_regs: Number of registers in GDB 'g' packets.
  * @next_cpu: Next CPU sharing TB cache.
+ * @mem_io_pc: Host Program Counter at which the memory was accessed.
+ * @mem_io_vaddr: Target virtual address at which the memory was accessed.
  * @kvm_fd: vCPU file descriptor for KVM.
  *
  * State of one CPU core or thread.
@@ -204,6 +206,12 @@ struct CPUState {
     int gdb_num_g_regs;
     QTAILQ_ENTRY(CPUState) node;
 
+    /* In order to avoid passing too many arguments to the MMIO helpers,
+     * we store some rarely used information in the CPU context.
+     */
+    uintptr_t mem_io_pc;
+    vaddr mem_io_vaddr;
+
     int kvm_fd;
     bool kvm_vcpu_dirty;
     struct KVMState *kvm_state;
diff --git a/qom/cpu.c b/qom/cpu.c
index 9b9c2c6..bf3c913 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -198,6 +198,8 @@ static void cpu_common_reset(CPUState *cpu)
     cpu->interrupt_request = 0;
     cpu->current_tb = NULL;
     cpu->halted = 0;
+    cpu->mem_io_pc = 0;
+    cpu->mem_io_vaddr = 0;
 }
 
 static int cpu_common_mmu_index(const CPUState *cs)
diff --git a/target-i386/helper.c b/target-i386/helper.c
index b25dafc..8c2ad94 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1248,12 +1248,15 @@ void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
 
 void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
 {
+    X86CPU *cpu = x86_env_get_cpu(env);
+    CPUState *cs = CPU(cpu);
+
     if (kvm_enabled()) {
         env->tpr_access_type = access;
 
-        cpu_interrupt(CPU(x86_env_get_cpu(env)), CPU_INTERRUPT_TPR);
+        cpu_interrupt(cs, CPU_INTERRUPT_TPR);
     } else {
-        cpu_restore_state(env, env->mem_io_pc);
+        cpu_restore_state(env, cs->mem_io_pc);
 
         apic_handle_tpr_access_report(env->apic_state, env->eip, access);
     }
diff --git a/translate-all.c b/translate-all.c
index 6000d4a..73ff1cf 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -1062,9 +1062,9 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
             if (current_tb_not_found) {
                 current_tb_not_found = 0;
                 current_tb = NULL;
-                if (env->mem_io_pc) {
+                if (cpu->mem_io_pc) {
                     /* now we have a real cpu fault */
-                    current_tb = tb_find_pc(env->mem_io_pc);
+                    current_tb = tb_find_pc(cpu->mem_io_pc);
                 }
             }
             if (current_tb == tb &&
@@ -1076,7 +1076,7 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
                 restore the CPU state */
 
                 current_tb_modified = 1;
-                cpu_restore_state_from_tb(current_tb, env, env->mem_io_pc);
+                cpu_restore_state_from_tb(current_tb, env, cpu->mem_io_pc);
                 cc->get_tb_cpu_state(cpu, &current_pc, &current_cs_base,
                                      &current_flags);
             }
@@ -1103,7 +1103,7 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
     if (!p->first_tb) {
         invalidate_page_bitmap(p);
         if (is_cpu_write_access) {
-            tlb_unprotect_code_phys(env, start, env->mem_io_vaddr);
+            tlb_unprotect_code_phys(env, start, cpu->mem_io_vaddr);
         }
     }
 #endif
@@ -1389,14 +1389,15 @@ void tb_invalidate_phys_addr(hwaddr addr)
 
 void tb_check_watchpoint(CPUArchState *env)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
     TranslationBlock *tb;
 
-    tb = tb_find_pc(env->mem_io_pc);
+    tb = tb_find_pc(cpu->mem_io_pc);
     if (!tb) {
         cpu_abort(env, "check_watchpoint: could not find TB for pc=%p",
-                  (void *)env->mem_io_pc);
+                  (void *)cpu->mem_io_pc);
     }
-    cpu_restore_state_from_tb(tb, env, env->mem_io_pc);
+    cpu_restore_state_from_tb(tb, env, cpu->mem_io_pc);
     tb_phys_invalidate(tb, -1);
 }
 
-- 
1.8.1.4