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| author | Yeongkyoon Lee <yeongkyoon.lee@samsung.com> | 2013-03-22 21:50:17 +0900 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2013-03-22 21:38:21 +0100 |
| commit | 52ae646d4a3ebdcdcc973492c6a56f2c49b6578f (patch) | |
| tree | 614737fa3eeddbd255cda8d7ad5fa18012e81a63 | |
| parent | 3f08ffb4a4741d147634761dc053ed386243a0de (diff) | |
| download | focaccia-qemu-52ae646d4a3ebdcdcc973492c6a56f2c49b6578f.tar.gz focaccia-qemu-52ae646d4a3ebdcdcc973492c6a56f2c49b6578f.zip | |
tcg: Fix occasional TCG broken problem when ldst optimization enabled
is_tcg_gen_code() checks the upper limit of TCG generated code range wrong, so that TCG could get broken occasionally only when CONFIG_QEMU_LDST_OPTIMIZATION enabled. The reason is code_gen_buffer_max_size does not cover the upper range up to (TCG_MAX_OP_SIZE * OPC_BUF_SIZE), thus code_gen_buffer_max_size should be modified to code_gen_buffer_size. CC: qemu-stable@nongnu.org Signed-off-by: Yeongkyoon Lee <yeongkyoon.lee@samsung.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
| -rw-r--r-- | translate-all.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/translate-all.c b/translate-all.c index 1f3237e60e..a98c646d92 100644 --- a/translate-all.c +++ b/translate-all.c @@ -1308,11 +1308,11 @@ static void tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, /* check whether the given addr is in TCG generated code buffer or not */ bool is_tcg_gen_code(uintptr_t tc_ptr) { - /* This can be called during code generation, code_gen_buffer_max_size + /* This can be called during code generation, code_gen_buffer_size is used instead of code_gen_ptr for upper boundary checking */ return (tc_ptr >= (uintptr_t)tcg_ctx.code_gen_buffer && tc_ptr < (uintptr_t)(tcg_ctx.code_gen_buffer + - tcg_ctx.code_gen_buffer_max_size)); + tcg_ctx.code_gen_buffer_size)); } #endif |