Linux arch/s390/kernel/head(64).S uses lpp instruction if it is
available in facilities list provided by stfl/stfle instruction. This is
the case of newer z/System generations and their qemu definition.
Signed-off-by: Miroslav Benes <mbe...@suse.cz>
---
target/s390x/insn-data.def | 2 ++
target/s390x/translate.c | 10 ++++++++++
2 files changed, 12 insertions(+)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index be830a42ed8d..d6dd391fabeb 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -843,6 +843,8 @@
/* LOAD CONTROL */
C(0xb700, LCTL, RS_a, Z, 0, a2, 0, 0, lctl, 0)
C(0xeb2f, LCTLG, RSY_a, Z, 0, a2, 0, 0, lctlg, 0)
+/* LOAD PROGRAM PARAMETER */
+ C(0xb280, LPP, S, LPP, 0, m2_64, 0, 0, lpp, 0)
/* LOAD PSW */
C(0x8200, LPSW, S, Z, 0, a2, 0, 0, lpsw, 0)
/* LOAD PSW EXTENDED */
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 141167948ee8..eb9e13e59b7d 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -1194,6 +1194,7 @@ typedef enum DisasFacility {
FAC_SCF, /* store clock fast */
FAC_SFLE, /* store facility list extended */
FAC_ILA, /* interlocked access facility 1 */
+ FAC_LPP, /* load-program-parameter */
} DisasFacility;
struct DisasInsn {
@@ -2567,6 +2568,15 @@ static ExitStatus op_lra(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_lpp(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+
+ tcg_gen_st_i64(o->in2, cpu_env, offsetof(CPUS390XState, pp));
+ return NO_EXIT;
+}
+
static ExitStatus op_lpsw(DisasContext *s, DisasOps *o)
{
TCGv_i64 t1, t2;
--
2.11.0
