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[Qemu-devel] [PATCH 2/4] target-i386: Allow interrupt injection after ST


From: Jan Kiszka
Subject: [Qemu-devel] [PATCH 2/4] target-i386: Allow interrupt injection after STGI
Date: Tue, 3 Apr 2018 17:00:55 +0200

From: Jan Kiszka <address@hidden>

We need to terminate the translation block after STGI so that pending
interrupts can be injected.

This fixes pending NMI injection for Jailhouse which uses "stgi; clgi"
to open a brief injection window.

Signed-off-by: Jan Kiszka <address@hidden>
---
 target/i386/translate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/i386/translate.c b/target/i386/translate.c
index 0135415d92..71d97876c7 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -7450,8 +7450,9 @@ static target_ulong disas_insn(DisasContext *s, CPUState 
*cpu)
                 break;
             }
             gen_update_cc_op(s);
-            gen_jmp_im(pc_start - s->cs_base);
             gen_helper_stgi(cpu_env);
+            gen_jmp_im(s->pc - s->cs_base);
+            gen_eob(s);
             break;
 
         case 0xdd: /* CLGI */
-- 
2.13.6




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