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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-10-01 07:09:16 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-10-11 09:36:01 +0200 |
| commit | 200ef603996bda2cd1e3c5ae63311bfb7d229e3b (patch) | |
| tree | 203db9c0e8c86fca97716cf8729df4e4d8f05181 /target | |
| parent | 09e99df4d54225619d57cecd9d3c61c719236a24 (diff) | |
| download | qemu-200ef603996bda2cd1e3c5ae63311bfb7d229e3b.zip qemu-200ef603996bda2cd1e3c5ae63311bfb7d229e3b.tar.gz qemu-200ef603996bda2cd1e3c5ae63311bfb7d229e3b.tar.bz2 | |
target/i386: Introduce DISAS_EOB*
Add a few DISAS_TARGET_* aliases to reduce the number of
calls to gen_eob() and gen_eob_inhibit_irq(). So far,
only update i386_tr_translate_insn for exiting the block
because of single-step or previous inhibit irq.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221001140935.465607-8-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/i386/tcg/translate.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 4c1548d..caa22af 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -132,6 +132,10 @@ typedef struct DisasContext { TCGOp *prev_insn_end; } DisasContext; +#define DISAS_EOB_ONLY DISAS_TARGET_0 +#define DISAS_EOB_NEXT DISAS_TARGET_1 +#define DISAS_EOB_INHIBIT_IRQ DISAS_TARGET_2 + /* The environment in which user-only runs is constrained. */ #ifdef CONFIG_USER_ONLY #define PE(S) true @@ -8849,7 +8853,7 @@ static void i386_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) * the flag and abort the translation to give the irqs a * chance to happen. */ - dc->base.is_jmp = DISAS_TOO_MANY; + dc->base.is_jmp = DISAS_EOB_NEXT; } else if (!is_same_page(&dc->base, pc_next)) { dc->base.is_jmp = DISAS_TOO_MANY; } @@ -8861,9 +8865,24 @@ static void i386_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) { DisasContext *dc = container_of(dcbase, DisasContext, base); - if (dc->base.is_jmp == DISAS_TOO_MANY) { + switch (dc->base.is_jmp) { + case DISAS_NORETURN: + break; + case DISAS_TOO_MANY: + case DISAS_EOB_NEXT: + gen_update_cc_op(dc); gen_update_eip_cur(dc); + /* fall through */ + case DISAS_EOB_ONLY: gen_eob(dc); + break; + case DISAS_EOB_INHIBIT_IRQ: + gen_update_cc_op(dc); + gen_update_eip_cur(dc); + gen_eob_inhibit_irq(dc, true); + break; + default: + g_assert_not_reached(); } } |