Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20171025' into staging

TCG patch queue

# gpg: Signature made Wed 25 Oct 2017 10:30:18 BST
# gpg:                using RSA key 0x64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20171025: (51 commits)
  translate-all: exit from tb_phys_invalidate if qht_remove fails
  tcg: Initialize cpu_env generically
  tcg: enable multiple TCG contexts in softmmu
  tcg: introduce regions to split code_gen_buffer
  translate-all: use qemu_protect_rwx/none helpers
  osdep: introduce qemu_mprotect_rwx/none
  tcg: allocate optimizer temps with tcg_malloc
  tcg: distribute profiling counters across TCGContext's
  tcg: introduce **tcg_ctxs to keep track of all TCGContext's
  gen-icount: fold exitreq_label into TCGContext
  tcg: define tcg_init_ctx and make tcg_ctx a pointer
  tcg: take tb_ctx out of TCGContext
  translate-all: report correct avg host TB size
  exec-all: rename tb_free to tb_remove
  translate-all: use a binary search tree to track TBs in TBContext
  tcg: Remove CF_IGNORE_ICOUNT
  tcg: Add CF_LAST_IO + CF_USE_ICOUNT to CF_HASH_MASK
  cpu-exec: lookup/generate TB outside exclusive region during step_atomic
  tcg: check CF_PARALLEL instead of parallel_cpus
  target/sparc: check CF_PARALLEL instead of parallel_cpus
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 8 insertions, 6 deletions

diff --git a/exec.c b/exec.c
index db5ae23118..97a24a875e 100644
--- a/exec.c
+++ b/exec.c
@@ -791,10 +791,15 @@ void cpu_exec_initfn(CPUState *cpu)
 
 void cpu_exec_realizefn(CPUState *cpu, Error **errp)
 {
-    CPUClass *cc ATTRIBUTE_UNUSED = CPU_GET_CLASS(cpu);
+    CPUClass *cc = CPU_GET_CLASS(cpu);
 
     cpu_list_add(cpu);
 
+    if (tcg_enabled() && !cc->tcg_initialized) {
+        cc->tcg_initialized = true;
+        cc->tcg_initialize();
+    }
+
 #ifndef CONFIG_USER_ONLY
     if (qdev_get_vmsd(DEVICE(cpu)) == NULL) {
         vmstate_register(NULL, cpu->cpu_index, &vmstate_cpu_common, cpu);
@@ -2426,11 +2431,8 @@ static void check_watchpoint(int offset, int len, MemTxAttrs attrs, int flags)
 {
     CPUState *cpu = current_cpu;
     CPUClass *cc = CPU_GET_CLASS(cpu);
-    CPUArchState *env = cpu->env_ptr;
-    target_ulong pc, cs_base;
     target_ulong vaddr;
     CPUWatchpoint *wp;
-    uint32_t cpu_flags;
 
     assert(tcg_enabled());
     if (cpu->watchpoint_hit) {
@@ -2470,8 +2472,8 @@ static void check_watchpoint(int offset, int len, MemTxAttrs attrs, int flags)
                     cpu->exception_index = EXCP_DEBUG;
                     cpu_loop_exit(cpu);
                 } else {
-                    cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags);
-                    tb_gen_code(cpu, pc, cs_base, cpu_flags, 1);
+                    /* Force execution of one insn next time.  */
+                    cpu->cflags_next_tb = 1 | curr_cflags();
                     cpu_loop_exit_noexc(cpu);
                 }
             }