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hw/uefi: add uefi-vars-sysbus device

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This adds sysbus bindings for the variable service.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-ID: <20250225163031.1409078-19-kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2025-02-25 17:30:22 +01:00
parent 736ca80cdd
commit 5bb89df2e3
2 changed files with 93 additions and 1 deletions
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3
hw/uefi/meson.build
View file

@ -8,7 +8,8 @@ if (config_all_devices.has_key('CONFIG_UEFI_VARS'))
'var-service-auth.c', 'var-service-auth.c',
'var-service-guid.c', 'var-service-guid.c',
'var-service-utils.c', 'var-service-utils.c',
'var-service-policy.c')) 'var-service-policy.c',
'var-service-sysbus.c'))
uefi_vars_ss.add(when: gnutls, uefi_vars_ss.add(when: gnutls,
if_true: files('var-service-pkcs7.c'), if_true: files('var-service-pkcs7.c'),
if_false: files('var-service-pkcs7-stub.c')) if_false: files('var-service-pkcs7-stub.c'))

91
hw/uefi/var-service-sysbus.c Normal file
View file

@ -0,0 +1,91 @@
/*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* uefi vars device - sysbus variant.
*/
#include "qemu/osdep.h"
#include "migration/vmstate.h"
#include "hw/qdev-properties.h"
#include "hw/sysbus.h"
#include "hw/uefi/var-service.h"
#include "hw/uefi/var-service-api.h"
OBJECT_DECLARE_SIMPLE_TYPE(uefi_vars_sysbus_state, UEFI_VARS_SYSBUS)
struct uefi_vars_sysbus_state {
SysBusDevice parent_obj;
struct uefi_vars_state state;
};
static const VMStateDescription vmstate_uefi_vars_sysbus = {
.name = TYPE_UEFI_VARS_SYSBUS,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(state, uefi_vars_sysbus_state, 0,
vmstate_uefi_vars, uefi_vars_state),
VMSTATE_END_OF_LIST()
}
};
static const Property uefi_vars_sysbus_properties[] = {
DEFINE_PROP_SIZE("size", uefi_vars_sysbus_state, state.max_storage,
256 * 1024),
DEFINE_PROP_STRING("jsonfile", uefi_vars_sysbus_state, state.jsonfile),
DEFINE_PROP_BOOL("force-secure-boot", uefi_vars_sysbus_state,
state.force_secure_boot, false),
DEFINE_PROP_BOOL("disable-custom-mode", uefi_vars_sysbus_state,
state.disable_custom_mode, false),
DEFINE_PROP_BOOL("use-pio", uefi_vars_sysbus_state,
state.use_pio, false),
};
static void uefi_vars_sysbus_init(Object *obj)
{
uefi_vars_sysbus_state *uv = UEFI_VARS_SYSBUS(obj);
uefi_vars_init(obj, &uv->state);
}
static void uefi_vars_sysbus_reset(DeviceState *dev)
{
uefi_vars_sysbus_state *uv = UEFI_VARS_SYSBUS(dev);
uefi_vars_hard_reset(&uv->state);
}
static void uefi_vars_sysbus_realize(DeviceState *dev, Error **errp)
{
uefi_vars_sysbus_state *uv = UEFI_VARS_SYSBUS(dev);
SysBusDevice *sysbus = SYS_BUS_DEVICE(dev);
sysbus_init_mmio(sysbus, &uv->state.mr);
uefi_vars_realize(&uv->state, errp);
}
static void uefi_vars_sysbus_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = uefi_vars_sysbus_realize;
dc->vmsd = &vmstate_uefi_vars_sysbus;
device_class_set_legacy_reset(dc, uefi_vars_sysbus_reset);
device_class_set_props(dc, uefi_vars_sysbus_properties);
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
}
static const TypeInfo uefi_vars_sysbus_info = {
.name = TYPE_UEFI_VARS_SYSBUS,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(uefi_vars_sysbus_state),
.instance_init = uefi_vars_sysbus_init,
.class_init = uefi_vars_sysbus_class_init,
};
module_obj(TYPE_UEFI_VARS_SYSBUS);
static void uefi_vars_sysbus_register_types(void)
{
type_register_static(&uefi_vars_sysbus_info);
}
type_init(uefi_vars_sysbus_register_types)