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hw/intc: GICv3 ITS initial framework

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Added register definitions relevant to ITS,implemented overall
ITS device framework with stubs for ITS control and translater
regions read/write,extended ITS common to handle mmio init between
existing kvm device and newer qemu device.

Signed-off-by: Shashi Mallela <shashi.mallela@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Message-id: 20210910143951.92242-2-shashi.mallela@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Shashi Mallela 2021-09-13 16:07:23 +01:00 • committed by Peter Maydell
parent 3b8a4733d1
commit 18f6290a6a
6 changed files with 342 additions and 14 deletions
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9
include/hw/intc/arm_gicv3_its_common.h
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@ -25,17 +25,22 @@
#include "hw/intc/arm_gicv3_common.h"
#include "qom/object.h"
#define TYPE_ARM_GICV3_ITS "arm-gicv3-its"
#define ITS_CONTROL_SIZE 0x10000
#define ITS_TRANS_SIZE 0x10000
#define ITS_SIZE (ITS_CONTROL_SIZE + ITS_TRANS_SIZE)
#define GITS_CTLR 0x0
#define GITS_IIDR 0x4
#define GITS_TYPER 0x8
#define GITS_CBASER 0x80
#define GITS_CWRITER 0x88
#define GITS_CREADR 0x90
#define GITS_BASER 0x100
#define GITS_TRANSLATER 0x0040
struct GICv3ITSState {
SysBusDevice parent_obj;
@ -52,6 +57,7 @@ struct GICv3ITSState {
/* Registers */
uint32_t ctlr;
uint32_t iidr;
uint64_t typer;
uint64_t cbaser;
uint64_t cwriter;
uint64_t creadr;
@ -62,7 +68,8 @@ struct GICv3ITSState {
typedef struct GICv3ITSState GICv3ITSState;
void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops);
void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops,
const MemoryRegionOps *tops);
#define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;