rpms
/
qemu-kvm
7
0
Fork 0
Code Issues Pull Requests Releases Activity
qemu-kvm/0022-s390x-kvm-add-etoken-f...

191 lines
6.3 KiB
Diff
Raw Blame History

From 8eacbf0e8e26b2a8aa3de955a57a7a3cb680d922 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@redhat.com>
Date: Thu, 9 Aug 2018 10:15:09 +0000
Subject: s390x/kvm: add etoken facility
RH-Author: Thomas Huth <thuth@redhat.com>
Message-id: <1533813309-9643-3-git-send-email-thuth@redhat.com>
Patchwork-id: 81687
O-Subject: [RHEL-8.0 qemu-kvm PATCH 2/2] s390x/kvm: add etoken facility
Bugzilla: 1612938
RH-Acked-by: David Hildenbrand <david@redhat.com>
RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
RH-Acked-by: Jens Freimann <jfreiman@redhat.com>
Provide the etoken facility. We need to handle cpu model, migration and
clear reset.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
target/s390x/cpu.h | 3 +++
target/s390x/cpu_features.c | 3 ++-
target/s390x/cpu_features_def.h | 3 ++-
target/s390x/gen-features.c | 3 ++-
target/s390x/kvm.c | 11 +++++++++++
target/s390x/machine.c | 20 +++++++++++++++++++-
6 files changed, 39 insertions(+), 4 deletions(-)
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
index 2c3dd2d..21b2f21 100644
--- a/target/s390x/cpu.h
+++ b/target/s390x/cpu.h
@@ -2,6 +2,7 @@
* S/390 virtual CPU header
*
* Copyright (c) 2009 Ulrich Hecht
+ * Copyright IBM Corp. 2012, 2018
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -68,6 +69,8 @@ struct CPUS390XState {
uint32_t aregs[16]; /* access registers */
uint8_t riccb[64]; /* runtime instrumentation control */
uint64_t gscb[4]; /* guarded storage control */
+ uint64_t etoken; /* etoken */
+ uint64_t etoken_extension; /* etoken extension */
/* Fields up to this point are not cleared by initial CPU reset */
struct {} start_initial_reset_fields;
diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c
index 3b9e274..e05e6aa 100644
--- a/target/s390x/cpu_features.c
+++ b/target/s390x/cpu_features.c
@@ -1,7 +1,7 @@
/*
* CPU features/facilities for s390x
*
- * Copyright 2016 IBM Corp.
+ * Copyright IBM Corp. 2016, 2018
*
* Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com>
*
@@ -106,6 +106,7 @@ static const S390FeatDef s390_features[] = {
FEAT_INIT("irbm", S390_FEAT_TYPE_STFL, 145, "Insert-reference-bits-multiple facility"),
FEAT_INIT("msa8-base", S390_FEAT_TYPE_STFL, 146, "Message-security-assist-extension-8 facility (excluding subfunctions)"),
FEAT_INIT("cmmnt", S390_FEAT_TYPE_STFL, 147, "CMM: ESSA-enhancement (no translate) facility"),
+ FEAT_INIT("etoken", S390_FEAT_TYPE_STFL, 156, "Etoken facility"),
/* SCLP SCCB Byte 80 - 98 (bit numbers relative to byte-80) */
FEAT_INIT("gsls", S390_FEAT_TYPE_SCLP_CONF_CHAR, 40, "SIE: Guest-storage-limit-suppression facility"),
diff --git a/target/s390x/cpu_features_def.h b/target/s390x/cpu_features_def.h
index 7c5915c..ac2c947 100644
--- a/target/s390x/cpu_features_def.h
+++ b/target/s390x/cpu_features_def.h
@@ -1,7 +1,7 @@
/*
* CPU features/facilities for s390
*
- * Copyright 2016 IBM Corp.
+ * Copyright IBM Corp. 2016, 2018
*
* Author(s): Michael Mueller <mimu@linux.vnet.ibm.com>
* David Hildenbrand <dahi@linux.vnet.ibm.com>
@@ -93,6 +93,7 @@ typedef enum {
S390_FEAT_INSERT_REFERENCE_BITS_MULT,
S390_FEAT_MSA_EXT_8,
S390_FEAT_CMM_NT,
+ S390_FEAT_ETOKEN,
/* Sclp Conf Char */
S390_FEAT_SIE_GSLS,
diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c
index 6626b6f..5af042c 100644
--- a/target/s390x/gen-features.c
+++ b/target/s390x/gen-features.c
@@ -1,7 +1,7 @@
/*
* S390 feature list generator
*
- * Copyright 2016 IBM Corp.
+ * Copyright IBM Corp. 2016, 2018
*
* Author(s): Michael Mueller <mimu@linux.vnet.ibm.com>
* David Hildenbrand <dahi@linux.vnet.ibm.com>
@@ -471,6 +471,7 @@ static uint16_t full_GEN14_GA1[] = {
S390_FEAT_GROUP_MSA_EXT_7,
S390_FEAT_GROUP_MSA_EXT_8,
S390_FEAT_CMM_NT,
+ S390_FEAT_ETOKEN,
S390_FEAT_HPMA2,
S390_FEAT_SIE_KSS,
S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF,
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
index c36ff36f..71d90f2 100644
--- a/target/s390x/kvm.c
+++ b/target/s390x/kvm.c
@@ -523,6 +523,12 @@ int kvm_arch_put_registers(CPUState *cs, int level)
cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_BPBC;
}
+ if (can_sync_regs(cs, KVM_SYNC_ETOKEN)) {
+ cs->kvm_run->s.regs.etoken = env->etoken;
+ cs->kvm_run->s.regs.etoken_extension = env->etoken_extension;
+ cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ETOKEN;
+ }
+
/* Finally the prefix */
if (can_sync_regs(cs, KVM_SYNC_PREFIX)) {
cs->kvm_run->s.regs.prefix = env->psa;
@@ -637,6 +643,11 @@ int kvm_arch_get_registers(CPUState *cs)
env->bpbc = cs->kvm_run->s.regs.bpbc;
}
+ if (can_sync_regs(cs, KVM_SYNC_ETOKEN)) {
+ env->etoken = cs->kvm_run->s.regs.etoken;
+ env->etoken_extension = cs->kvm_run->s.regs.etoken_extension;
+ }
+
/* pfault parameters */
if (can_sync_regs(cs, KVM_SYNC_PFAULT)) {
env->pfault_token = cs->kvm_run->s.regs.pft;
diff --git a/target/s390x/machine.c b/target/s390x/machine.c
index bd3230d..cb792aa 100644
--- a/target/s390x/machine.c
+++ b/target/s390x/machine.c
@@ -1,7 +1,7 @@
/*
* S390x machine definitions and functions
*
- * Copyright IBM Corp. 2014
+ * Copyright IBM Corp. 2014, 2018
*
* Authors:
* Thomas Huth <thuth@linux.vnet.ibm.com>
@@ -216,6 +216,23 @@ const VMStateDescription vmstate_bpbc = {
}
};
+static bool etoken_needed(void *opaque)
+{
+ return s390_has_feat(S390_FEAT_ETOKEN);
+}
+
+const VMStateDescription vmstate_etoken = {
+ .name = "cpu/etoken",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = etoken_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(env.etoken, S390CPU),
+ VMSTATE_UINT64(env.etoken_extension, S390CPU),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
const VMStateDescription vmstate_s390_cpu = {
.name = "cpu",
.post_load = cpu_post_load,
@@ -251,6 +268,7 @@ const VMStateDescription vmstate_s390_cpu = {
&vmstate_exval,
&vmstate_gscb,
&vmstate_bpbc,
+ &vmstate_etoken,
NULL
},
};
--
1.8.3.1
Reference in New Issue View Git Blame Copy Permalink