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From 7634eed5aea61dc94f9a828c62ef3da9aeaa62ae Mon Sep 17 00:00:00 2001
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From: Janosch Frank <frankja@linux.ibm.com>
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Date: Mon, 17 Oct 2022 08:38:18 +0000
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Subject: [PATCH 37/42] s390x: Add protected dump cap
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 226: s390: Enhanced Interpretation for PCI Functions and Secure Execution guest dump
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RH-Bugzilla: 1664378 2043909
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: Jon Maloy <jmaloy@redhat.com>
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RH-Commit: [37/41] 52e1e7bf1a00ce3a220d3db2f733a65548bfec6d
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Add a protected dump capability for later feature checking.
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Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Reviewed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
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Message-Id: <20221017083822.43118-7-frankja@linux.ibm.com>
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[ Marc-André - Add missing stubs when !kvm ]
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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(cherry picked from commit ad3b2e693daac6ed92db7361236028851d37c77c)
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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target/s390x/kvm/kvm.c | 7 +++++++
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target/s390x/kvm/kvm_s390x.h | 1 +
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target/s390x/kvm/meson.build | 2 ++
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target/s390x/kvm/stubs.c | 12 ++++++++++++
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4 files changed, 22 insertions(+)
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create mode 100644 target/s390x/kvm/stubs.c
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diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c
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index 30712487d4..d36b44f32a 100644
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--- a/target/s390x/kvm/kvm.c
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+++ b/target/s390x/kvm/kvm.c
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@@ -159,6 +159,7 @@ static int cap_hpage_1m;
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static int cap_vcpu_resets;
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static int cap_protected;
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static int cap_zpci_op;
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+static int cap_protected_dump;
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static bool mem_op_storage_key_support;
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@@ -365,6 +366,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
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cap_vcpu_resets = kvm_check_extension(s, KVM_CAP_S390_VCPU_RESETS);
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cap_protected = kvm_check_extension(s, KVM_CAP_S390_PROTECTED);
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cap_zpci_op = kvm_check_extension(s, KVM_CAP_S390_ZPCI_OP);
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+ cap_protected_dump = kvm_check_extension(s, KVM_CAP_S390_PROTECTED_DUMP);
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kvm_vm_enable_cap(s, KVM_CAP_S390_USER_SIGP, 0);
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kvm_vm_enable_cap(s, KVM_CAP_S390_VECTOR_REGISTERS, 0);
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@@ -2042,6 +2044,11 @@ int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch,
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return kvm_vm_ioctl(kvm_state, KVM_IOEVENTFD, &kick);
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}
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+int kvm_s390_get_protected_dump(void)
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+{
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+ return cap_protected_dump;
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+}
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+
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int kvm_s390_get_ri(void)
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{
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return cap_ri;
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diff --git a/target/s390x/kvm/kvm_s390x.h b/target/s390x/kvm/kvm_s390x.h
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index aaae8570de..f9785564d0 100644
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--- a/target/s390x/kvm/kvm_s390x.h
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+++ b/target/s390x/kvm/kvm_s390x.h
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@@ -26,6 +26,7 @@ int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state);
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void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu);
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int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu);
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int kvm_s390_get_hpage_1m(void);
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+int kvm_s390_get_protected_dump(void);
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int kvm_s390_get_ri(void);
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int kvm_s390_get_zpci_op(void);
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int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_clock);
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diff --git a/target/s390x/kvm/meson.build b/target/s390x/kvm/meson.build
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index d1356356b1..aef52b6686 100644
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--- a/target/s390x/kvm/meson.build
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+++ b/target/s390x/kvm/meson.build
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@@ -1,6 +1,8 @@
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s390x_ss.add(when: 'CONFIG_KVM', if_true: files(
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'kvm.c'
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+), if_false: files(
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+ 'stubs.c'
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))
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# Newer kernels on s390 check for an S390_PGSTE program header and
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diff --git a/target/s390x/kvm/stubs.c b/target/s390x/kvm/stubs.c
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new file mode 100644
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index 0000000000..5fd63b9a7e
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--- /dev/null
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+++ b/target/s390x/kvm/stubs.c
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@@ -0,0 +1,12 @@
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+/*
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+ * SPDX-License-Identifier: GPL-2.0-or-later
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+ */
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+
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+#include "qemu/osdep.h"
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+
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+#include "kvm_s390x.h"
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+
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+int kvm_s390_get_protected_dump(void)
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+{
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+ return false;
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+}
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--
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2.37.3
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