From 90aa39a1cc4837360889f0e033ca25cc82100308 Mon Sep 17 00:00:00 2001 From: Sergey Fedorov Date: Sat, 9 Apr 2016 01:00:23 +0300 Subject: tcg: Allow goto_tb to any target PC in user mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In user mode, there's only a static address translation, TBs are always invalidated properly and direct jumps are reset when mapping change. Thus the destination address is always valid for direct jumps and there's no need to restrict it to the pages the TB resides in. Signed-off-by: Sergey Fedorov Signed-off-by: Sergey Fedorov Cc: Riku Voipio Cc: Blue Swirl Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- target-alpha/translate.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'target-alpha/translate.c') diff --git a/target-alpha/translate.c b/target-alpha/translate.c index 5b86992dd3..8c2183a418 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -460,12 +460,16 @@ static bool use_goto_tb(DisasContext *ctx, uint64_t dest) || ctx->singlestep_enabled || singlestep) { return false; } +#ifndef CONFIG_USER_ONLY /* If the destination is in the superpage, the page perms can't change. */ if (in_superpage(ctx, dest)) { return true; } /* Check for the dest on the same page as the start of the TB. */ return ((ctx->tb->pc ^ dest) & TARGET_PAGE_MASK) == 0; +#else + return true; +#endif } static ExitStatus gen_bdirect(DisasContext *ctx, int ra, int32_t disp) -- cgit v1.2.3