target/s390x: Indicate and check for local tlb clearing
Let's allow to enable it for the qemu cpu model and correctly emulate it. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170622094151.28633-2-david@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
parent
159fed45db
commit
faf1c63d34
|
@ -688,6 +688,7 @@ static void add_qemu_cpu_model_features(S390FeatBitmap fbm)
|
|||
S390_FEAT_FLOATING_POINT_SUPPPORT_ENH,
|
||||
S390_FEAT_STFLE_45,
|
||||
S390_FEAT_STFLE_49,
|
||||
S390_FEAT_LOCAL_TLB_CLEARING,
|
||||
S390_FEAT_STFLE_53,
|
||||
};
|
||||
int i;
|
||||
|
|
|
@ -1629,8 +1629,6 @@ void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr,
|
|||
|
||||
/* XXX we exploit the fact that Linux passes the exact virtual
|
||||
address here - it's not obliged to! */
|
||||
/* XXX: the LC bit should be considered as 0 if the local-TLB-clearing
|
||||
facility is not installed. */
|
||||
if (m4 & 1) {
|
||||
tlb_flush_page(cs, page);
|
||||
} else {
|
||||
|
|
|
@ -2385,7 +2385,11 @@ static ExitStatus op_ipte(DisasContext *s, DisasOps *o)
|
|||
TCGv_i32 m4;
|
||||
|
||||
check_privileged(s);
|
||||
if (s390_has_feat(S390_FEAT_LOCAL_TLB_CLEARING)) {
|
||||
m4 = tcg_const_i32(get_field(s->fields, m4));
|
||||
} else {
|
||||
m4 = tcg_const_i32(0);
|
||||
}
|
||||
gen_helper_ipte(cpu_env, o->in1, o->in2, m4);
|
||||
tcg_temp_free_i32(m4);
|
||||
return NO_EXIT;
|
||||
|
|
Loading…
Reference in a new issue