hw/arm/xlnx-zynqmp: Add unimplemented APU mmio
Add unimplemented APU mmio region to xlnx-zynqmp for booting bare-metal guests built with standalone bsp, which access the region from one of the following places: https://github.com/Xilinx/embeddedsw/blob/release-2020.2/lib/bsp/standalone/src/arm/ARMv8/64bit/armclang/boot.S#L139 https://github.com/Xilinx/embeddedsw/blob/release-2020.2/lib/bsp/standalone/src/arm/ARMv8/64bit/gcc/boot.S#L183 Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Tong Ho <tong.ho@xilinx.com> Message-id: 20210823173818.201259-3-tong.ho@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -20,6 +20,7 @@
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#include "qemu/module.h"
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#include "hw/arm/xlnx-zynqmp.h"
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#include "hw/intc/arm_gic_common.h"
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#include "hw/misc/unimp.h"
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#include "hw/boards.h"
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#include "sysemu/kvm.h"
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#include "sysemu/sysemu.h"
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@ -56,6 +57,9 @@
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#define DPDMA_ADDR 0xfd4c0000
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#define DPDMA_IRQ 116
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#define APU_ADDR 0xfd5c0000
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#define APU_SIZE 0x100
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#define IPI_ADDR 0xFF300000
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#define IPI_IRQ 64
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@ -222,6 +226,32 @@ static void xlnx_zynqmp_create_rpu(MachineState *ms, XlnxZynqMPState *s,
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qdev_realize(DEVICE(&s->rpu_cluster), NULL, &error_fatal);
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}
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static void xlnx_zynqmp_create_unimp_mmio(XlnxZynqMPState *s)
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{
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static const struct UnimpInfo {
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const char *name;
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hwaddr base;
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hwaddr size;
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} unimp_areas[ARRAY_SIZE(s->mr_unimp)] = {
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{ .name = "apu", APU_ADDR, APU_SIZE },
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};
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unsigned int nr;
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for (nr = 0; nr < ARRAY_SIZE(unimp_areas); nr++) {
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const struct UnimpInfo *info = &unimp_areas[nr];
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DeviceState *dev = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
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SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
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assert(info->name && info->base && info->size > 0);
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qdev_prop_set_string(dev, "name", info->name);
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qdev_prop_set_uint64(dev, "size", info->size);
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object_property_add_child(OBJECT(s), info->name, OBJECT(dev));
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sysbus_realize_and_unref(sbd, &error_fatal);
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sysbus_mmio_map(sbd, 0, info->base);
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}
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}
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static void xlnx_zynqmp_init(Object *obj)
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{
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MachineState *ms = MACHINE(qdev_get_machine());
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@ -596,6 +626,8 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, RTC_ADDR);
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sysbus_connect_irq(SYS_BUS_DEVICE(&s->rtc), 0, gic_spi[RTC_IRQ]);
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xlnx_zynqmp_create_unimp_mmio(s);
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for (i = 0; i < XLNX_ZYNQMP_NUM_GDMA_CH; i++) {
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if (!object_property_set_uint(OBJECT(&s->gdma[i]), "bus-width", 128,
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errp)) {
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@ -79,6 +79,11 @@ OBJECT_DECLARE_SIMPLE_TYPE(XlnxZynqMPState, XLNX_ZYNQMP)
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#define XLNX_ZYNQMP_MAX_RAM_SIZE (XLNX_ZYNQMP_MAX_LOW_RAM_SIZE + \
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XLNX_ZYNQMP_MAX_HIGH_RAM_SIZE)
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/*
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* Unimplemented mmio regions needed to boot some images.
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*/
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#define XLNX_ZYNQMP_NUM_UNIMP_AREAS 1
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struct XlnxZynqMPState {
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/*< private >*/
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DeviceState parent_obj;
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@ -96,6 +101,8 @@ struct XlnxZynqMPState {
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MemoryRegion *ddr_ram;
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MemoryRegion ddr_ram_low, ddr_ram_high;
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MemoryRegion mr_unimp[XLNX_ZYNQMP_NUM_UNIMP_AREAS];
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CadenceGEMState gem[XLNX_ZYNQMP_NUM_GEMS];
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CadenceUARTState uart[XLNX_ZYNQMP_NUM_UARTS];
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XlnxZynqMPCANState can[XLNX_ZYNQMP_NUM_CAN];
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