cpu-exec: invalidate nocache translation if they are interrupted

In this case, QEMU might longjmp out of cpu-exec.c and miss the final
cleanup in cpu_exec_nocache.  Do this manually through a new compile
flag.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/translate-all.c b/translate-all.c
index ba5c8403d3..cf05472008 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -264,6 +264,12 @@ bool cpu_restore_state(CPUState *cpu, uintptr_t retaddr)
     tb = tb_find_pc(retaddr);
     if (tb) {
         cpu_restore_state_from_tb(cpu, tb, retaddr);
+        if (tb->cflags & CF_NOCACHE) {
+            /* one-shot translation, invalidate it immediately */
+            cpu->current_tb = NULL;
+            tb_phys_invalidate(tb, -1);
+            tb_free(tb);
+        }
         return true;
     }
     return false;