1 files changed, 43 insertions, 21 deletions

diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index 13c964dcd8..4ed75a13e1 100644
--- a/accel/tcg/translate-all.c
+++ b/accel/tcg/translate-all.c
@@ -299,7 +299,7 @@ static int encode_search(TranslationBlock *tb, uint8_t *block)
 
         for (j = 0; j < TARGET_INSN_START_WORDS; ++j) {
             if (i == 0) {
-                prev = (j == 0 ? tb_pc(tb) : 0);
+                prev = (!TARGET_TB_PCREL && j == 0 ? tb_pc(tb) : 0);
             } else {
                 prev = tcg_ctx->gen_insn_data[i - 1][j];
             }
@@ -327,7 +327,7 @@ static int encode_search(TranslationBlock *tb, uint8_t *block)
 static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
                                      uintptr_t searched_pc, bool reset_icount)
 {
-    target_ulong data[TARGET_INSN_START_WORDS] = { tb_pc(tb) };
+    target_ulong data[TARGET_INSN_START_WORDS];
     uintptr_t host_pc = (uintptr_t)tb->tc.ptr;
     CPUArchState *env = cpu->env_ptr;
     const uint8_t *p = tb->tc.ptr + tb->tc.size;
@@ -343,6 +343,11 @@ static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
         return -1;
     }
 
+    memset(data, 0, sizeof(data));
+    if (!TARGET_TB_PCREL) {
+        data[0] = tb_pc(tb);
+    }
+
     /* Reconstruct the stored insn data while looking for the point at
        which the end of the insn exceeds the searched_pc.  */
     for (i = 0; i < num_insns; ++i) {
@@ -885,13 +890,13 @@ static bool tb_cmp(const void *ap, const void *bp)
     const TranslationBlock *a = ap;
     const TranslationBlock *b = bp;
 
-    return tb_pc(a) == tb_pc(b) &&
-        a->cs_base == b->cs_base &&
-        a->flags == b->flags &&
-        (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) &&
-        a->trace_vcpu_dstate == b->trace_vcpu_dstate &&
-        a->page_addr[0] == b->page_addr[0] &&
-        a->page_addr[1] == b->page_addr[1];
+    return ((TARGET_TB_PCREL || tb_pc(a) == tb_pc(b)) &&
+            a->cs_base == b->cs_base &&
+            a->flags == b->flags &&
+            (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) &&
+            a->trace_vcpu_dstate == b->trace_vcpu_dstate &&
+            a->page_addr[0] == b->page_addr[0] &&
+            a->page_addr[1] == b->page_addr[1]);
 }
 
 void tb_htable_init(void)
@@ -1148,6 +1153,28 @@ static inline void tb_jmp_unlink(TranslationBlock *dest)
     qemu_spin_unlock(&dest->jmp_lock);
 }
 
+static void tb_jmp_cache_inval_tb(TranslationBlock *tb)
+{
+    CPUState *cpu;
+
+    if (TARGET_TB_PCREL) {
+        /* A TB may be at any virtual address */
+        CPU_FOREACH(cpu) {
+            tcg_flush_jmp_cache(cpu);
+        }
+    } else {
+        uint32_t h = tb_jmp_cache_hash_func(tb_pc(tb));
+
+        CPU_FOREACH(cpu) {
+            CPUJumpCache *jc = cpu->tb_jmp_cache;
+
+            if (qatomic_read(&jc->array[h].tb) == tb) {
+                qatomic_set(&jc->array[h].tb, NULL);
+            }
+        }
+    }
+}
+
 /*
  * In user-mode, call with mmap_lock held.
  * In !user-mode, if @rm_from_page_list is set, call with the TB's pages'
@@ -1155,7 +1182,6 @@ static inline void tb_jmp_unlink(TranslationBlock *dest)
  */
 static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list)
 {
-    CPUState *cpu;
     PageDesc *p;
     uint32_t h;
     tb_page_addr_t phys_pc;
@@ -1170,8 +1196,8 @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list)
 
     /* remove the TB from the hash list */
     phys_pc = tb->page_addr[0];
-    h = tb_hash_func(phys_pc, tb_pc(tb), tb->flags, orig_cflags,
-                     tb->trace_vcpu_dstate);
+    h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : tb_pc(tb)),
+                     tb->flags, orig_cflags, tb->trace_vcpu_dstate);
     if (!qht_remove(&tb_ctx.htable, tb, h)) {
         return;
     }
@@ -1187,13 +1213,7 @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list)
     }
 
     /* remove the TB from the hash list */
-    h = tb_jmp_cache_hash_func(tb->pc);
-    CPU_FOREACH(cpu) {
-        CPUJumpCache *jc = cpu->tb_jmp_cache;
-        if (qatomic_read(&jc->array[h].tb) == tb) {
-            qatomic_set(&jc->array[h].tb, NULL);
-        }
-    }
+    tb_jmp_cache_inval_tb(tb);
 
     /* suppress this TB from the two jump lists */
     tb_remove_from_jmp_list(tb, 0);
@@ -1302,8 +1322,8 @@ tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc,
     }
 
     /* add in the hash table */
-    h = tb_hash_func(phys_pc, tb_pc(tb), tb->flags, tb->cflags,
-                     tb->trace_vcpu_dstate);
+    h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : tb_pc(tb)),
+                     tb->flags, tb->cflags, tb->trace_vcpu_dstate);
     qht_insert(&tb_ctx.htable, tb, h, &existing_tb);
 
     /* remove TB from the page(s) if we couldn't insert it */
@@ -1373,7 +1393,9 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
 
     gen_code_buf = tcg_ctx->code_gen_ptr;
     tb->tc.ptr = tcg_splitwx_to_rx(gen_code_buf);
+#if !TARGET_TB_PCREL
     tb->pc = pc;
+#endif
     tb->cs_base = cs_base;
     tb->flags = flags;
     tb->cflags = cflags;