diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-09 01:00:23 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:42 -1000 |
| commit | 90aa39a1cc4837360889f0e033ca25cc82100308 (patch) | |
| tree | b8f857f456fec4ecd5b5931f41c7b17b52a353eb /target-xtensa | |
| parent | 5b053a4a28278bca606eeff7d1c0730df1b047e9 (diff) | |
| download | qemu-90aa39a1cc4837360889f0e033ca25cc82100308.tar.gz | |
tcg: Allow goto_tb to any target PC in user mode
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 <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Blue Swirl <blauwirbel@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-xtensa')
| -rw-r--r-- | target-xtensa/translate.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index 9894488469..9eac56e2a5 100644 --- a/target-xtensa/translate.c +++ b/target-xtensa/translate.c @@ -418,9 +418,11 @@ static void gen_jump(DisasContext *dc, TCGv dest) static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot) { TCGv_i32 tmp = tcg_const_i32(dest); +#ifndef CONFIG_USER_ONLY if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) { slot = -1; } +#endif gen_jump_slot(dc, tmp, slot); tcg_temp_free(tmp); } @@ -446,9 +448,11 @@ static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest) static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot) { TCGv_i32 tmp = tcg_const_i32(dest); +#ifndef CONFIG_USER_ONLY if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) { slot = -1; } +#endif gen_callw_slot(dc, callinc, tmp, slot); tcg_temp_free(tmp); } |