tcg: Move tb_phys_invalidate_count to tb_ctx

We can call do_tb_phys_invalidate from an iocontext, which has
no per-thread tcg_ctx.  Move this to tb_ctx, which is global.
The actual update still takes place with a lock held, so only
an atomic set is required, not an atomic increment.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/457
Tested-by: Viktor Ashirov <vashirov@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 0 insertions, 14 deletions

diff --git a/tcg/region.c b/tcg/region.c
index d3a3658e81..e64c3ea230 100644
--- a/tcg/region.c
+++ b/tcg/region.c
@@ -980,17 +980,3 @@ size_t tcg_code_capacity(void)
 
     return capacity;
 }
-
-size_t tcg_tb_phys_invalidate_count(void)
-{
-    unsigned int n_ctxs = qatomic_read(&tcg_cur_ctxs);
-    unsigned int i;
-    size_t total = 0;
-
-    for (i = 0; i < n_ctxs; i++) {
-        const TCGContext *s = qatomic_read(&tcg_ctxs[i]);
-
-        total += qatomic_read(&s->tb_phys_invalidate_count);
-    }
-    return total;
-}