SCSI, i386 patches for 2022-10-11

[PULL 25/37] target/i386: Use gen_jmp_rel for DISAS_TOO_MANY

Paolo Bonzini posted 37 patches 3 years, 4 months ago

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Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Fam Zheng <fam@euphon.net>, Laurent Vivier <laurent@vivier.eu>, Eric Blake <eblake@redhat.com>, Markus Armbruster <armbru@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Huacai Chen <chenhuacai@kernel.org>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, "Cédric Le Goater" <clg@kaod.org>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Cornelia Huck <cohuck@redhat.com>, Thomas Huth <thuth@redhat.com>, David Hildenbrand <david@redhat.com>

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[PULL 25/37] target/i386: Use gen_jmp_rel for DISAS_TOO_MANY

Posted by Paolo Bonzini 3 years, 4 months ago

From: Richard Henderson <richard.henderson@linaro.org>

With gen_jmp_rel, we may chain between two translation blocks
which may only be separated because of TB size limits.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221001140935.465607-21-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 5b84be4975..cf23ae6e5e 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -8798,6 +8798,9 @@ static void i386_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
     case DISAS_NORETURN:
         break;
     case DISAS_TOO_MANY:
+        gen_update_cc_op(dc);
+        gen_jmp_rel_csize(dc, 0, 0);
+        break;
     case DISAS_EOB_NEXT:
         gen_update_cc_op(dc);
         gen_update_eip_cur(dc);
-- 
2.37.3