upstream: cpu changes.

2 files changed, 61 insertions, 30 deletions

diff --git a/cpu-all.h b/cpu-all.h
index 3e00570..22a068d 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -627,23 +627,32 @@ static inline void stfq_be_p(void *ptr, float64 v)
 #if defined(CONFIG_USE_GUEST_BASE)
 extern unsigned long guest_base;
 extern int have_guest_base;
+extern unsigned long reserved_va;
 #define GUEST_BASE guest_base
+#define RESERVED_VA reserved_va
 #else
 #define GUEST_BASE 0ul
+#define RESERVED_VA 0ul
 #endif
 
 /* All direct uses of g2h and h2g need to go away for usermode softmmu.  */
 #define g2h(x) ((void *)((unsigned long)(x) + GUEST_BASE))
+
+#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
+#define h2g_valid(x) 1
+#else
+#define h2g_valid(x) ({ \
+    unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \
+    __guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS); \
+})
+#endif
+
 #define h2g(x) ({ \
     unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \
     /* Check if given address fits target address space */ \
-    assert(__ret == (abi_ulong)__ret); \
+    assert(h2g_valid(x)); \
     (abi_ulong)__ret; \
 })
-#define h2g_valid(x) ({ \
-    unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \
-    (__guest == (abi_ulong)__guest); \
-})
 
 #define saddr(x) g2h(x)
 #define laddr(x) g2h(x)
@@ -736,14 +745,22 @@ extern unsigned long qemu_host_page_mask;
 /* original state of the write flag (used when tracking self-modifying
    code */
 #define PAGE_WRITE_ORG 0x0010
+#if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY)
+/* FIXME: Code that sets/uses this is broken and needs to go away.  */
 #define PAGE_RESERVED  0x0020
+#endif
 
+#if defined(CONFIG_USER_ONLY)
 void page_dump(FILE *f);
-int walk_memory_regions(void *,
-    int (*fn)(void *, unsigned long, unsigned long, unsigned long));
+
+typedef int (*walk_memory_regions_fn)(void *, abi_ulong,
+                                      abi_ulong, unsigned long);
+int walk_memory_regions(void *, walk_memory_regions_fn);
+
 int page_get_flags(target_ulong address);
 void page_set_flags(target_ulong start, target_ulong end, int flags);
 int page_check_range(target_ulong start, target_ulong len, int flags);
+#endif
 
 void cpu_exec_init_all(unsigned long tb_size);
 CPUState *cpu_copy(CPUState *env);
@@ -808,11 +825,8 @@ void cpu_watchpoint_remove_all(CPUState *env, int mask);
 
 void cpu_single_step(CPUState *env, int enabled);
 void cpu_reset(CPUState *s);
-
-/* Return the physical page corresponding to a virtual one. Use it
-   only for debugging because no protection checks are done. Return -1
-   if no page found. */
-target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
+int cpu_is_stopped(CPUState *env);
+void run_on_cpu(CPUState *env, void (*func)(void *data), void *data);
 
 #define CPU_LOG_TB_OUT_ASM (1 << 0)
 #define CPU_LOG_TB_IN_ASM  (1 << 1)
@@ -841,6 +855,11 @@ int cpu_str_to_log_mask(const char *str);
 /* IO ports API */
 #include "ioport.h"
 
+/* Return the physical page corresponding to a virtual one. Use it
+   only for debugging because no protection checks are done. Return -1
+   if no page found. */
+target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
+
 /* memory API */
 
 extern int phys_ram_fd;
@@ -866,9 +885,6 @@ extern ram_addr_t last_ram_offset;
 /* Set if TLB entry is an IO callback.  */
 #define TLB_MMIO        (1 << 5)
 
-int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
-                        uint8_t *buf, int len, int is_write);
-
 #define VGA_DIRTY_FLAG       0x01
 #define CODE_DIRTY_FLAG      0x02
 #define MIGRATION_DIRTY_FLAG 0x08
@@ -928,6 +944,9 @@ extern int64_t tlb_flush_time;
 extern int64_t dev_time;
 #endif
 
+int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
+                        uint8_t *buf, int len, int is_write);
+
 void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
                         uint64_t mcg_status, uint64_t addr, uint64_t misc);
 
diff --git a/cpu-defs.h b/cpu-defs.h
index 7fdbe97..8d4bf86 100644
--- a/cpu-defs.h
+++ b/cpu-defs.h
@@ -72,10 +72,11 @@ typedef uint64_t target_ulong;
 #define TB_JMP_ADDR_MASK (TB_JMP_PAGE_SIZE - 1)
 #define TB_JMP_PAGE_MASK (TB_JMP_CACHE_SIZE - TB_JMP_PAGE_SIZE)
 
+#if !defined(CONFIG_USER_ONLY)
 #define CPU_TLB_BITS 8
 #define CPU_TLB_SIZE (1 << CPU_TLB_BITS)
 
-#if TARGET_PHYS_ADDR_BITS == 32 && TARGET_LONG_BITS == 32
+#if HOST_LONG_BITS == 32 && TARGET_LONG_BITS == 32
 #define CPU_TLB_ENTRY_BITS 4
 #else
 #define CPU_TLB_ENTRY_BITS 5
@@ -91,21 +92,32 @@ typedef struct CPUTLBEntry {
     target_ulong addr_read;
     target_ulong addr_write;
     target_ulong addr_code;
-    /* Addend to virtual address to get physical address.  IO accesses
+    /* Addend to virtual address to get host address.  IO accesses
        use the corresponding iotlb value.  */
-#if TARGET_PHYS_ADDR_BITS == 64
-    /* on i386 Linux make sure it is aligned */
-    target_phys_addr_t addend __attribute__((aligned(8)));
-#else
-    target_phys_addr_t addend;
-#endif
+    unsigned long addend;
     /* padding to get a power of two size */
     uint8_t dummy[(1 << CPU_TLB_ENTRY_BITS) - 
                   (sizeof(target_ulong) * 3 + 
-                   ((-sizeof(target_ulong) * 3) & (sizeof(target_phys_addr_t) - 1)) + 
-                   sizeof(target_phys_addr_t))];
+                   ((-sizeof(target_ulong) * 3) & (sizeof(unsigned long) - 1)) + 
+                   sizeof(unsigned long))];
 } CPUTLBEntry;
 
+extern int CPUTLBEntry_wrong_size[sizeof(CPUTLBEntry) == (1 << CPU_TLB_ENTRY_BITS) ? 1 : -1];
+
+#define CPU_COMMON_TLB \
+    /* The meaning of the MMU modes is defined in the target code. */   \
+    CPUTLBEntry tlb_table[NB_MMU_MODES][CPU_TLB_SIZE];                  \
+    target_phys_addr_t iotlb[NB_MMU_MODES][CPU_TLB_SIZE];               \
+    target_ulong tlb_flush_addr;                                        \
+    target_ulong tlb_flush_mask;
+
+#else
+
+#define CPU_COMMON_TLB
+
+#endif
+
+
 #ifdef HOST_WORDS_BIGENDIAN
 typedef struct icount_decr_u16 {
     uint16_t high;
@@ -120,6 +132,7 @@ typedef struct icount_decr_u16 {
 
 struct kvm_run;
 struct KVMState;
+struct qemu_work_item;
 
 typedef struct CPUBreakpoint {
     target_ulong pc;
@@ -146,13 +159,9 @@ typedef struct CPUWatchpoint {
     target_ulong mem_io_vaddr; /* target virtual addr at which the      \
                                      memory was accessed */             \
     uint32_t halted; /* Nonzero if the CPU is in suspend state */       \
-    uint32_t stop;   /* Stop request */                                 \
-    uint32_t stopped; /* Artificially stopped */                        \
     uint32_t interrupt_request;                                         \
     volatile sig_atomic_t exit_request;                                 \
-    /* The meaning of the MMU modes is defined in the target code. */   \
-    CPUTLBEntry tlb_table[NB_MMU_MODES][CPU_TLB_SIZE];                  \
-    target_phys_addr_t iotlb[NB_MMU_MODES][CPU_TLB_SIZE];               \
+    CPU_COMMON_TLB                                                      \
     struct TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE];           \
     /* buffer for temporaries in the code generator */                  \
     long temp_buf[CPU_TEMP_BUF_NLONGS];                                 \
@@ -192,8 +201,11 @@ typedef struct CPUWatchpoint {
     void *opaque;                                                       \
                                                                         \
     uint32_t created;                                                   \
+    uint32_t stop;   /* Stop request */                                 \
+    uint32_t stopped; /* Artificially stopped */                        \
     struct QemuThread *thread;                                          \
     struct QemuCond *halt_cond;                                         \
+    struct qemu_work_item *queued_work_first, *queued_work_last;        \
     const char *cpu_model_str;                                          \
     struct KVMState *kvm_state;                                         \
     struct kvm_run *kvm_run;                                            \