[PATCH v5 04/19] accel/tcg: Adjust probe_access call to page_check_range

[Richard Henderson]

We have validated that addr+size does not cross a page boundary.
Therefore we need to validate exactly one page.  We can achieve
that passing any value 1 <= x <= size to page_check_range.

Passing 1 will simplify the next patch.

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 accel/tcg/user-exec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index 4be78eb9b3..03538e2a38 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -211,7 +211,7 @@ void *probe_access(CPUArchState *env, target_ulong addr, 
int size,
         g_assert_not_reached();
     }
 
-    if (!guest_addr_valid(addr) || page_check_range(addr, size, flags) < 0) {
+    if (!guest_addr_valid(addr) || page_check_range(addr, 1, flags) < 0) {
         CPUState *cpu = env_cpu(env);
         CPUClass *cc = CPU_GET_CLASS(cpu);
         cc->tlb_fill(cpu, addr, size, access_type, MMU_USER_IDX, false,
-- 
2.20.1