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[PATCH 14/26] target/i386: introduce x86-confidential-guest
From: |
Paolo Bonzini |
Subject: |
[PATCH 14/26] target/i386: introduce x86-confidential-guest |
Date: |
Fri, 22 Mar 2024 19:11:04 +0100 |
Introduce a common superclass for x86 confidential guest implementations.
It will extend ConfidentialGuestSupportClass with a method that provides
the VM type to be passed to KVM_CREATE_VM.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/confidential-guest.h | 40 ++++++++++++++++++++++++++++++++
target/i386/confidential-guest.c | 33 ++++++++++++++++++++++++++
target/i386/sev.c | 6 ++---
target/i386/meson.build | 2 +-
4 files changed, 77 insertions(+), 4 deletions(-)
create mode 100644 target/i386/confidential-guest.h
create mode 100644 target/i386/confidential-guest.c
diff --git a/target/i386/confidential-guest.h b/target/i386/confidential-guest.h
new file mode 100644
index 00000000000..ca12d5a8fba
--- /dev/null
+++ b/target/i386/confidential-guest.h
@@ -0,0 +1,40 @@
+/*
+ * x86-specific confidential guest methods.
+ *
+ * Copyright (c) 2024 Red Hat Inc.
+ *
+ * Authors:
+ * Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#ifndef TARGET_I386_CG_H
+#define TARGET_I386_CG_H
+
+#include "qom/object.h"
+
+#include "exec/confidential-guest-support.h"
+
+#define TYPE_X86_CONFIDENTIAL_GUEST "x86-confidential-guest"
+
+OBJECT_DECLARE_TYPE(X86ConfidentialGuest,
+ X86ConfidentialGuestClass,
+ X86_CONFIDENTIAL_GUEST)
+
+struct X86ConfidentialGuest {
+ /* <private> */
+ ConfidentialGuestSupport parent_obj;
+};
+
+/**
+ * X86ConfidentialGuestClass:
+ *
+ * Class to be implemented by confidential-guest-support concrete objects
+ * for the x86 target.
+ */
+struct X86ConfidentialGuestClass {
+ /* <private> */
+ ConfidentialGuestSupportClass parent;
+};
+#endif
diff --git a/target/i386/confidential-guest.c b/target/i386/confidential-guest.c
new file mode 100644
index 00000000000..b3727845adc
--- /dev/null
+++ b/target/i386/confidential-guest.c
@@ -0,0 +1,33 @@
+/*
+ * QEMU Confidential Guest support
+ *
+ * Copyright (C) 2024 Red Hat, Inc.
+ *
+ * Authors:
+ * Paolo Bonzini <pbonzini@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+
+#include "confidential-guest.h"
+
+OBJECT_DEFINE_ABSTRACT_TYPE(X86ConfidentialGuest,
+ x86_confidential_guest,
+ X86_CONFIDENTIAL_GUEST,
+ CONFIDENTIAL_GUEST_SUPPORT)
+
+static void x86_confidential_guest_class_init(ObjectClass *oc, void *data)
+{
+}
+
+static void x86_confidential_guest_init(Object *obj)
+{
+}
+
+static void x86_confidential_guest_finalize(Object *obj)
+{
+}
diff --git a/target/i386/sev.c b/target/i386/sev.c
index c49a8fd55eb..ebe36d4c10c 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -35,7 +35,7 @@
#include "monitor/monitor.h"
#include "monitor/hmp-target.h"
#include "qapi/qapi-commands-misc-target.h"
-#include "exec/confidential-guest-support.h"
+#include "confidential-guest.h"
#include "hw/i386/pc.h"
#include "exec/address-spaces.h"
@@ -54,7 +54,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(SevGuestState, SEV_GUEST)
* -machine ...,memory-encryption=sev0
*/
struct SevGuestState {
- ConfidentialGuestSupport parent_obj;
+ X86ConfidentialGuest parent_obj;
/* configuration parameters */
char *sev_device;
@@ -1372,7 +1372,7 @@ sev_guest_instance_init(Object *obj)
/* sev guest info */
static const TypeInfo sev_guest_info = {
- .parent = TYPE_CONFIDENTIAL_GUEST_SUPPORT,
+ .parent = TYPE_X86_CONFIDENTIAL_GUEST,
.name = TYPE_SEV_GUEST,
.instance_size = sizeof(SevGuestState),
.instance_finalize = sev_guest_finalize,
diff --git a/target/i386/meson.build b/target/i386/meson.build
index 7c74bfa8591..8abce725f86 100644
--- a/target/i386/meson.build
+++ b/target/i386/meson.build
@@ -6,7 +6,7 @@ i386_ss.add(files(
'xsave_helper.c',
'cpu-dump.c',
))
-i386_ss.add(when: 'CONFIG_SEV', if_true: files('host-cpu.c'))
+i386_ss.add(when: 'CONFIG_SEV', if_true: files('host-cpu.c',
'confidential-guest.c'))
# x86 cpu type
i386_ss.add(when: 'CONFIG_KVM', if_true: files('host-cpu.c'))
--
2.44.0
- [PATCH 07/26] scripts/update-linux-headers: Add setup_data.h to import list, (continued)
- [PATCH 07/26] scripts/update-linux-headers: Add setup_data.h to import list, Paolo Bonzini, 2024/03/22
- [PATCH 10/26] [TO SQUASH] hw/i386: Remove redeclaration of struct setup_data, Paolo Bonzini, 2024/03/22
- [PATCH 11/26] runstate: skip initial CPU reset if reset is not actually possible, Paolo Bonzini, 2024/03/22
- [PATCH 09/26] [HACK] linux-headers: Update headers for 6.8 + kvm-coco-queue + SNP, Paolo Bonzini, 2024/03/22
- [PATCH 12/26] KVM: track whether guest state is encrypted, Paolo Bonzini, 2024/03/22
- [PATCH 13/26] KVM: remove kvm_arch_cpu_check_are_resettable, Paolo Bonzini, 2024/03/22
- [PATCH 14/26] target/i386: introduce x86-confidential-guest,
Paolo Bonzini <=
- [PATCH 16/26] target/i386: SEV: use KVM_SEV_INIT2 if possible, Paolo Bonzini, 2024/03/22
- [PATCH 17/26] trace/kvm: Split address space and slot id in trace_kvm_set_user_memory(), Paolo Bonzini, 2024/03/22
- [PATCH 20/26] kvm: Enable KVM_SET_USER_MEMORY_REGION2 for memslot, Paolo Bonzini, 2024/03/22
- [PATCH 18/26] kvm: Introduce support for memory_attributes, Paolo Bonzini, 2024/03/22
- [PATCH 19/26] RAMBlock: Add support of KVM private guest memfd, Paolo Bonzini, 2024/03/22
- [PATCH 15/26] target/i386: Implement mc->kvm_type() to get VM type, Paolo Bonzini, 2024/03/22