exec: introduce cpu_reload_memory_map
This for now is a simple TLB flush. This can change later for two
reasons:
1) an AddressSpaceDispatch will be cached in the CPUState object
2) it will not be possible to do tlb_flush once the TCG-generated code
runs outside the BQL.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/cpu-exec.c b/cpu-exec.c
index fa506e6..78fe382 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -141,6 +141,12 @@
cpu->exception_index = -1;
siglongjmp(cpu->jmp_env, 1);
}
+
+void cpu_reload_memory_map(CPUState *cpu)
+{
+ /* The TLB is protected by the iothread lock. */
+ tlb_flush(cpu, 1);
+}
#endif
/* Execute a TB, and fix up the CPU state afterwards if necessary */
diff --git a/exec.c b/exec.c
index 6dff7bc..2bfb4d3 100644
--- a/exec.c
+++ b/exec.c
@@ -2026,7 +2026,7 @@
if (cpu->tcg_as_listener != listener) {
continue;
}
- tlb_flush(cpu, 1);
+ cpu_reload_memory_map(cpu);
}
}
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 6a15448..1b30813 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -96,6 +96,7 @@
void tb_invalidate_phys_range(tb_page_addr_t start, tb_page_addr_t end,
int is_cpu_write_access);
#if !defined(CONFIG_USER_ONLY)
+void cpu_reload_memory_map(CPUState *cpu);
void tcg_cpu_address_space_init(CPUState *cpu, AddressSpace *as);
/* cputlb.c */
void tlb_flush_page(CPUState *cpu, target_ulong addr);
