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127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/*
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* ITS support for ARM GICv3
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*
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* Copyright (c) 2015 Samsung Electronics Co., Ltd.
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* Written by Pavel Fedin
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QEMU_ARM_GICV3_ITS_COMMON_H
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#define QEMU_ARM_GICV3_ITS_COMMON_H
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#include "hw/sysbus.h"
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#include "hw/intc/arm_gicv3_common.h"
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#include "qom/object.h"
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#define TYPE_ARM_GICV3_ITS "arm-gicv3-its"
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#define ITS_CONTROL_SIZE 0x10000
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#define ITS_TRANS_SIZE 0x10000
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#define ITS_SIZE (ITS_CONTROL_SIZE + ITS_TRANS_SIZE)
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#define GITS_CTLR 0x0
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#define GITS_IIDR 0x4
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#define GITS_TYPER 0x8
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#define GITS_CBASER 0x80
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#define GITS_CWRITER 0x88
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#define GITS_CREADR 0x90
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#define GITS_BASER 0x100
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#define GITS_TRANSLATER 0x0040
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typedef struct {
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bool indirect;
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uint16_t entry_sz;
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uint32_t page_sz;
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uint32_t num_entries;
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uint64_t base_addr;
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} TableDesc;
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typedef struct {
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uint32_t num_entries;
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uint64_t base_addr;
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} CmdQDesc;
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struct GICv3ITSState {
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SysBusDevice parent_obj;
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MemoryRegion iomem_main;
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MemoryRegion iomem_its_cntrl;
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MemoryRegion iomem_its_translation;
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GICv3State *gicv3;
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int dev_fd; /* kvm device fd if backed by kvm vgic support */
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uint64_t gits_translater_gpa;
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bool translater_gpa_known;
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/* Registers */
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uint32_t ctlr;
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uint32_t iidr;
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uint64_t typer;
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uint64_t cbaser;
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uint64_t cwriter;
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uint64_t creadr;
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uint64_t baser[8];
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TableDesc dt;
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TableDesc ct;
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TableDesc vpet;
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CmdQDesc cq;
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Error *migration_blocker;
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};
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typedef struct GICv3ITSState GICv3ITSState;
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void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops,
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const MemoryRegionOps *tops);
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/*
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* The ITS should call this when it is realized to add itself
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* to its GIC's list of connected ITSes.
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*/
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static inline void gicv3_add_its(GICv3State *s, DeviceState *its)
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{
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g_ptr_array_add(s->itslist, its);
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}
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/*
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* The ITS can use this for operations that must be performed on
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* every ITS connected to the same GIC that it is
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*/
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static inline void gicv3_foreach_its(GICv3State *s, GFunc func, void *opaque)
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{
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g_ptr_array_foreach(s->itslist, func, opaque);
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}
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#define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
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typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;
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DECLARE_OBJ_CHECKERS(GICv3ITSState, GICv3ITSCommonClass,
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ARM_GICV3_ITS_COMMON, TYPE_ARM_GICV3_ITS_COMMON)
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struct GICv3ITSCommonClass {
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/*< private >*/
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SysBusDeviceClass parent_class;
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/*< public >*/
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int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid);
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void (*pre_save)(GICv3ITSState *s);
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void (*post_load)(GICv3ITSState *s);
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};
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#endif
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