From: Paolo Bonzini <pbonzini@redhat.com>
Intel SDM 18.3.1.4 "If an occurrence of the MOV or POP instruction
loads the SS register executes with EFLAGS.TF = 1, no single-step debug
exception occurs following the MOV or POP instruction."
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit f0f0136abba688a6516647a79cc91e03fad6d5d7)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: context fixup for v8.1.0-1189-gad75a51e84af "tcg: Rename cpu_env to tcg_env")
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index f8578ad1ea..0d47b61603 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -2823,7 +2823,7 @@ do_gen_eob_worker(DisasContext *s, bool inhibit, bool recheck_tf, bool jr)
if (recheck_tf) {
gen_helper_rechecking_single_step(cpu_env);
tcg_gen_exit_tb(NULL, 0);
- } else if (s->flags & HF_TF_MASK) {
+ } else if ((s->flags & HF_TF_MASK) && !inhibit) {
gen_helper_single_step(cpu_env);
} else if (jr &&
/* give irqs a chance to happen */
--
2.39.2