On 02/25/2017 12:50 AM, Miroslav Benes wrote:
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>
---

I can't find LPP in my PoO 11th edition...

+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));

But you don't need the potential_page_fault, since this is not a store to guest memory.


r~

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