diff options
Diffstat (limited to 'hw/riscv/virt.c')
| -rw-r--r-- | hw/riscv/virt.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index c4b8f455f8..4f0c2fbca0 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -59,6 +59,15 @@ static const MemMapEntry virt_memmap[] = { [VIRT_DRAM] = { 0x80000000, 0x0 }, }; +/* PCIe high mmio is fixed for RV32 */ +#define VIRT32_HIGH_PCIE_MMIO_BASE 0x300000000ULL +#define VIRT32_HIGH_PCIE_MMIO_SIZE (4 * GiB) + +/* PCIe high mmio for RV64, size is fixed but base depends on top of RAM */ +#define VIRT64_HIGH_PCIE_MMIO_SIZE (16 * GiB) + +static MemMapEntry virt_high_pcie_memmap; + #define VIRT_FLASH_SECTOR_SIZE (256 * KiB) static PFlashCFI01 *virt_flash_create1(RISCVVirtState *s, @@ -371,7 +380,11 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap, 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size, 1, FDT_PCI_RANGE_MMIO, 2, memmap[VIRT_PCIE_MMIO].base, - 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size); + 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size, + 1, FDT_PCI_RANGE_MMIO_64BIT, + 2, virt_high_pcie_memmap.base, + 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.size); + create_pcie_irq_map(fdt, name, plic_pcie_phandle); g_free(name); @@ -448,12 +461,14 @@ update_bootargs: static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, hwaddr ecam_base, hwaddr ecam_size, hwaddr mmio_base, hwaddr mmio_size, + hwaddr high_mmio_base, + hwaddr high_mmio_size, hwaddr pio_base, DeviceState *plic) { DeviceState *dev; MemoryRegion *ecam_alias, *ecam_reg; - MemoryRegion *mmio_alias, *mmio_reg; + MemoryRegion *mmio_alias, *high_mmio_alias, *mmio_reg; qemu_irq irq; int i; @@ -473,6 +488,13 @@ static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, mmio_reg, mmio_base, mmio_size); memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias); + /* Map high MMIO space */ + high_mmio_alias = g_new0(MemoryRegion, 1); + memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", + mmio_reg, high_mmio_base, high_mmio_size); + memory_region_add_subregion(get_system_memory(), high_mmio_base, + high_mmio_alias); + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); for (i = 0; i < GPEX_NUM_IRQS; i++) { @@ -598,6 +620,13 @@ static void virt_machine_init(MachineState *machine) error_report("Limiting RAM size to 10 GiB"); } #endif + virt_high_pcie_memmap.base = VIRT32_HIGH_PCIE_MMIO_BASE; + virt_high_pcie_memmap.size = VIRT32_HIGH_PCIE_MMIO_SIZE; + } else { + virt_high_pcie_memmap.size = VIRT64_HIGH_PCIE_MMIO_SIZE; + virt_high_pcie_memmap.base = memmap[VIRT_DRAM].base + machine->ram_size; + virt_high_pcie_memmap.base = + ROUND_UP(virt_high_pcie_memmap.base, virt_high_pcie_memmap.size); } /* register system main memory (actual RAM) */ @@ -683,6 +712,8 @@ static void virt_machine_init(MachineState *machine) memmap[VIRT_PCIE_ECAM].size, memmap[VIRT_PCIE_MMIO].base, memmap[VIRT_PCIE_MMIO].size, + virt_high_pcie_memmap.base, + virt_high_pcie_memmap.size, memmap[VIRT_PCIE_PIO].base, DEVICE(pcie_plic)); |