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hw/intc/arm_gicv3_its: Implement ITS base class

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This is the basic skeleton for both KVM and software-emulated ITS.
Since we already prepare status structure, we also introduce complete
VMState description. But, because we currently have no migratable
implementations, we also set unmigratable flag.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1474616617-366-3-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Pavel Fedin 2016-10-04 13:28:08 +01:00 • committed by Peter Maydell
parent d19a4d4ef4
commit 386ce3c7fc
4 changed files with 246 additions and 0 deletions
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78
include/hw/intc/arm_gicv3_its_common.h Normal file
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/*
* ITS support for ARM GICv3
*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
* Written by Pavel Fedin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QEMU_ARM_GICV3_ITS_COMMON_H
#define QEMU_ARM_GICV3_ITS_COMMON_H
#include "hw/sysbus.h"
#include "hw/intc/arm_gicv3_common.h"
#define ITS_CONTROL_SIZE 0x10000
#define ITS_TRANS_SIZE 0x10000
#define ITS_SIZE (ITS_CONTROL_SIZE + ITS_TRANS_SIZE)
struct GICv3ITSState {
SysBusDevice parent_obj;
MemoryRegion iomem_main;
MemoryRegion iomem_its_cntrl;
MemoryRegion iomem_its_translation;
GICv3State *gicv3;
int dev_fd; /* kvm device fd if backed by kvm vgic support */
uint64_t gits_translater_gpa;
bool translater_gpa_known;
/* Registers */
uint32_t ctlr;
uint64_t cbaser;
uint64_t cwriter;
uint64_t creadr;
uint64_t baser[8];
Error *migration_blocker;
};
typedef struct GICv3ITSState GICv3ITSState;
void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops);
#define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
#define ARM_GICV3_ITS_COMMON(obj) \
OBJECT_CHECK(GICv3ITSState, (obj), TYPE_ARM_GICV3_ITS_COMMON)
#define ARM_GICV3_ITS_COMMON_CLASS(klass) \
OBJECT_CLASS_CHECK(GICv3ITSCommonClass, (klass), TYPE_ARM_GICV3_ITS_COMMON)
#define ARM_GICV3_ITS_COMMON_GET_CLASS(obj) \
OBJECT_GET_CLASS(GICv3ITSCommonClass, (obj), TYPE_ARM_GICV3_ITS_COMMON)
struct GICv3ITSCommonClass {
/*< private >*/
SysBusDeviceClass parent_class;
/*< public >*/
int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid);
void (*pre_save)(GICv3ITSState *s);
void (*post_load)(GICv3ITSState *s);
};
typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;
#endif