1afe0b380SShannon Zhao /* 2afe0b380SShannon Zhao * 3afe0b380SShannon Zhao * Copyright (c) 2015 Linaro Limited 4afe0b380SShannon Zhao * 5afe0b380SShannon Zhao * This program is free software; you can redistribute it and/or modify it 6afe0b380SShannon Zhao * under the terms and conditions of the GNU General Public License, 7afe0b380SShannon Zhao * version 2 or later, as published by the Free Software Foundation. 8afe0b380SShannon Zhao * 9afe0b380SShannon Zhao * This program is distributed in the hope it will be useful, but WITHOUT 10afe0b380SShannon Zhao * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11afe0b380SShannon Zhao * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12afe0b380SShannon Zhao * more details. 13afe0b380SShannon Zhao * 14afe0b380SShannon Zhao * You should have received a copy of the GNU General Public License along with 15afe0b380SShannon Zhao * this program. If not, see <http://www.gnu.org/licenses/>. 16afe0b380SShannon Zhao * 17afe0b380SShannon Zhao * Emulate a virtual board which works by passing Linux all the information 18afe0b380SShannon Zhao * it needs about what devices are present via the device tree. 19afe0b380SShannon Zhao * There are some restrictions about what we can do here: 20afe0b380SShannon Zhao * + we can only present devices whose Linux drivers will work based 21afe0b380SShannon Zhao * purely on the device tree with no platform data at all 22afe0b380SShannon Zhao * + we want to present a very stripped-down minimalist platform, 23afe0b380SShannon Zhao * both because this reduces the security attack surface from the guest 24afe0b380SShannon Zhao * and also because it reduces our exposure to being broken when 25afe0b380SShannon Zhao * the kernel updates its device tree bindings and requires further 26afe0b380SShannon Zhao * information in a device binding that we aren't providing. 27afe0b380SShannon Zhao * This is essentially the same approach kvmtool uses. 28afe0b380SShannon Zhao */ 29afe0b380SShannon Zhao 30afe0b380SShannon Zhao #ifndef QEMU_ARM_VIRT_H 31afe0b380SShannon Zhao #define QEMU_ARM_VIRT_H 32afe0b380SShannon Zhao 3333c11879SPaolo Bonzini #include "exec/hwaddr.h" 34d05fdab4SAndrew Jones #include "qemu/notify.h" 35a72d4363SAndrew Jones #include "hw/boards.h" 3612ec8bd5SPeter Maydell #include "hw/arm/boot.h" 37e0561e60SMarkus Armbruster #include "hw/block/flash.h" 38f90747c4SEric Auger #include "sysemu/kvm.h" 39f90747c4SEric Auger #include "hw/intc/arm_gicv3_common.h" 40db1015e9SEduardo Habkost #include "qom/object.h" 41afe0b380SShannon Zhao 42bd204e63SChristoffer Dall #define NUM_GICV2M_SPIS 64 43afe0b380SShannon Zhao #define NUM_VIRTIO_TRANSPORTS 32 44584105eaSPrem Mallappa #define NUM_SMMU_IRQS 4 45afe0b380SShannon Zhao 4655ef3233SLuc Michel #define ARCH_GIC_MAINT_IRQ 9 475454006aSPeter Maydell 48ee246400SShannon Zhao #define ARCH_TIMER_VIRT_IRQ 11 49ee246400SShannon Zhao #define ARCH_TIMER_S_EL1_IRQ 13 50ee246400SShannon Zhao #define ARCH_TIMER_NS_EL1_IRQ 14 51ee246400SShannon Zhao #define ARCH_TIMER_NS_EL2_IRQ 10 52ee246400SShannon Zhao 5301fe6b60SShannon Zhao #define VIRTUAL_PMU_IRQ 7 5401fe6b60SShannon Zhao 5501fe6b60SShannon Zhao #define PPI(irq) ((irq) + 16) 5601fe6b60SShannon Zhao 5768970d1eSAndrew Jones /* See Linux kernel arch/arm64/include/asm/pvclock-abi.h */ 5868970d1eSAndrew Jones #define PVTIME_SIZE_PER_CPU 64 5968970d1eSAndrew Jones 60afe0b380SShannon Zhao enum { 61afe0b380SShannon Zhao VIRT_FLASH, 62afe0b380SShannon Zhao VIRT_MEM, 63afe0b380SShannon Zhao VIRT_CPUPERIPHS, 64afe0b380SShannon Zhao VIRT_GIC_DIST, 65afe0b380SShannon Zhao VIRT_GIC_CPU, 66b92ad394SPavel Fedin VIRT_GIC_V2M, 6755ef3233SLuc Michel VIRT_GIC_HYP, 6855ef3233SLuc Michel VIRT_GIC_VCPU, 69b92ad394SPavel Fedin VIRT_GIC_ITS, 70b92ad394SPavel Fedin VIRT_GIC_REDIST, 71584105eaSPrem Mallappa VIRT_SMMU, 72afe0b380SShannon Zhao VIRT_UART, 73afe0b380SShannon Zhao VIRT_MMIO, 74afe0b380SShannon Zhao VIRT_RTC, 75afe0b380SShannon Zhao VIRT_FW_CFG, 76afe0b380SShannon Zhao VIRT_PCIE, 776a1f001bSShannon Zhao VIRT_PCIE_MMIO, 786a1f001bSShannon Zhao VIRT_PCIE_PIO, 796a1f001bSShannon Zhao VIRT_PCIE_ECAM, 805f7a5a0eSEric Auger VIRT_PLATFORM_BUS, 81b0a3721eSShannon Zhao VIRT_GPIO, 823df708ebSPeter Maydell VIRT_SECURE_UART, 8383ec1923SPeter Maydell VIRT_SECURE_MEM, 84daa726d9SMaxim Uvarov VIRT_SECURE_GPIO, 85cff51ac9SShameer Kolothum VIRT_PCDIMM_ACPI, 86cff51ac9SShameer Kolothum VIRT_ACPI_GED, 87b5a60beeSKwangwoo Lee VIRT_NVDIMM_ACPI, 8868970d1eSAndrew Jones VIRT_PVTIME, 89350a9c9eSEric Auger VIRT_LOWMEMMAP_LAST, 90350a9c9eSEric Auger }; 91350a9c9eSEric Auger 92350a9c9eSEric Auger /* indices of IO regions located after the RAM */ 93350a9c9eSEric Auger enum { 94350a9c9eSEric Auger VIRT_HIGH_GIC_REDIST2 = VIRT_LOWMEMMAP_LAST, 95350a9c9eSEric Auger VIRT_HIGH_PCIE_ECAM, 96350a9c9eSEric Auger VIRT_HIGH_PCIE_MMIO, 97afe0b380SShannon Zhao }; 98afe0b380SShannon Zhao 99584105eaSPrem Mallappa typedef enum VirtIOMMUType { 100584105eaSPrem Mallappa VIRT_IOMMU_NONE, 101584105eaSPrem Mallappa VIRT_IOMMU_SMMUV3, 102584105eaSPrem Mallappa VIRT_IOMMU_VIRTIO, 103584105eaSPrem Mallappa } VirtIOMMUType; 104584105eaSPrem Mallappa 1051b6f99d8SEric Auger typedef enum VirtMSIControllerType { 1061b6f99d8SEric Auger VIRT_MSI_CTRL_NONE, 1071b6f99d8SEric Auger VIRT_MSI_CTRL_GICV2M, 1081b6f99d8SEric Auger VIRT_MSI_CTRL_ITS, 1091b6f99d8SEric Auger } VirtMSIControllerType; 1101b6f99d8SEric Auger 111d04460e5SEric Auger typedef enum VirtGICType { 112d04460e5SEric Auger VIRT_GIC_VERSION_MAX, 113d04460e5SEric Auger VIRT_GIC_VERSION_HOST, 114d04460e5SEric Auger VIRT_GIC_VERSION_2, 115d04460e5SEric Auger VIRT_GIC_VERSION_3, 1167cf3f8d2SPeter Maydell VIRT_GIC_VERSION_4, 11736bf4ec8SEric Auger VIRT_GIC_VERSION_NOSEL, 118d04460e5SEric Auger } VirtGICType; 119d04460e5SEric Auger 120db1015e9SEduardo Habkost struct VirtMachineClass { 121a72d4363SAndrew Jones MachineClass parent; 122a72d4363SAndrew Jones bool disallow_affinity_adjustment; 123a72d4363SAndrew Jones bool no_its; 1240e5c1c9aSShashi Mallela bool no_tcg_its; 125a72d4363SAndrew Jones bool no_pmu; 126a72d4363SAndrew Jones bool claim_edge_triggered_timers; 127dfadc3bfSWei Huang bool smbios_old_sys_ver; 12817ec075aSEric Auger bool no_highmem_ecam; 12931511b6fSYanan Wang bool no_ged; /* Machines < 4.2 have no support for ACPI GED device */ 130dea101a1SAndrew Jones bool kvm_no_adjvtime; 13168970d1eSAndrew Jones bool no_kvm_steal_time; 1322c1fb4d5SAndrew Jones bool acpi_expose_flash; 133daa726d9SMaxim Uvarov bool no_secure_gpio; 13431511b6fSYanan Wang /* Machines < 6.2 have no support for describing cpu topology to guest */ 13531511b6fSYanan Wang bool no_cpu_topology; 13609428204SRichard Henderson bool no_tcg_lpa2; 137db1015e9SEduardo Habkost }; 138a72d4363SAndrew Jones 139db1015e9SEduardo Habkost struct VirtMachineState { 140a72d4363SAndrew Jones MachineState parent; 141a72d4363SAndrew Jones Notifier machine_done; 142a3fc8396SIgor Mammedov DeviceState *platform_bus_dev; 143af1f60a4SAndrew Jones FWCfgState *fw_cfg; 144e0561e60SMarkus Armbruster PFlashCFI01 *flash[2]; 145a72d4363SAndrew Jones bool secure; 146a72d4363SAndrew Jones bool highmem; 1474a4ff9edSGavin Shan bool highmem_compact; 148601d626dSEric Auger bool highmem_ecam; 149c8f008c4SMarc Zyngier bool highmem_mmio; 150a63618b1SMarc Zyngier bool highmem_redists; 151ccc11b02SEric Auger bool its; 1520e5c1c9aSShashi Mallela bool tcg_its; 153f29cacfbSPeter Maydell bool virt; 1542afa8c85SDongjiu Geng bool ras; 1556f4e1405SRichard Henderson bool mte; 1565242876fSJason A. Donenfeld bool dtb_randomness; 15717e89077SGerd Hoffmann OnOffAuto acpi; 158d04460e5SEric Auger VirtGICType gic_version; 159584105eaSPrem Mallappa VirtIOMMUType iommu; 1606d7a8548SXingang Wang bool default_bus_bypass_iommu; 1611b6f99d8SEric Auger VirtMSIControllerType msi_controller; 16270e89132SEric Auger uint16_t virtio_iommu_bdf; 163a72d4363SAndrew Jones struct arm_boot_info bootinfo; 164350a9c9eSEric Auger MemMapEntry *memmap; 16570e89132SEric Auger char *pciehb_nodename; 166a72d4363SAndrew Jones const int *irqmap; 167a72d4363SAndrew Jones int fdt_size; 168a72d4363SAndrew Jones uint32_t clock_phandle; 169a72d4363SAndrew Jones uint32_t gic_phandle; 170a72d4363SAndrew Jones uint32_t msi_phandle; 171584105eaSPrem Mallappa uint32_t iommu_phandle; 1722013c566SPeter Maydell int psci_conduit; 173957e32cfSEric Auger hwaddr highest_gpa; 174b8b69f4cSPhilippe Mathieu-Daudé DeviceState *gic; 175cff51ac9SShameer Kolothum DeviceState *acpi_dev; 176c345680cSShameer Kolothum Notifier powerdown_notifier; 17709fad167SJiahui Cen PCIBus *bus; 178602b4582SMarian Postevca char *oem_id; 179602b4582SMarian Postevca char *oem_table_id; 180db1015e9SEduardo Habkost }; 181a72d4363SAndrew Jones 182bf424a12SEric Auger #define VIRT_ECAM_ID(high) (high ? VIRT_HIGH_PCIE_ECAM : VIRT_PCIE_ECAM) 183601d626dSEric Auger 184a72d4363SAndrew Jones #define TYPE_VIRT_MACHINE MACHINE_TYPE_NAME("virt") 185a489d195SEduardo Habkost OBJECT_DECLARE_TYPE(VirtMachineState, VirtMachineClass, VIRT_MACHINE) 186a72d4363SAndrew Jones 187e9a8e474SAndrew Jones void virt_acpi_setup(VirtMachineState *vms); 18817e89077SGerd Hoffmann bool virt_is_acpi_enabled(VirtMachineState *vms); 189d05fdab4SAndrew Jones 190f31985a7SPeter Maydell /* Return number of redistributors that fit in the specified region */ 191f31985a7SPeter Maydell static uint32_t virt_redist_capacity(VirtMachineState *vms, int region) 192f31985a7SPeter Maydell { 1937cf3f8d2SPeter Maydell uint32_t redist_size; 1947cf3f8d2SPeter Maydell 1957cf3f8d2SPeter Maydell if (vms->gic_version == VIRT_GIC_VERSION_3) { 1967cf3f8d2SPeter Maydell redist_size = GICV3_REDIST_SIZE; 1977cf3f8d2SPeter Maydell } else { 1987cf3f8d2SPeter Maydell redist_size = GICV4_REDIST_SIZE; 1997cf3f8d2SPeter Maydell } 2007cf3f8d2SPeter Maydell return vms->memmap[region].size / redist_size; 201f31985a7SPeter Maydell } 202f31985a7SPeter Maydell 203f90747c4SEric Auger /* Return the number of used redistributor regions */ 204f90747c4SEric Auger static inline int virt_gicv3_redist_region_count(VirtMachineState *vms) 205f90747c4SEric Auger { 206f31985a7SPeter Maydell uint32_t redist0_capacity = virt_redist_capacity(vms, VIRT_GIC_REDIST); 207f90747c4SEric Auger 2087cf3f8d2SPeter Maydell assert(vms->gic_version != VIRT_GIC_VERSION_2); 209f90747c4SEric Auger 210a63618b1SMarc Zyngier return (MACHINE(vms)->smp.cpus > redist0_capacity && 211a63618b1SMarc Zyngier vms->highmem_redists) ? 2 : 1; 212f90747c4SEric Auger } 213f90747c4SEric Auger 214d05fdab4SAndrew Jones #endif /* QEMU_ARM_VIRT_H */ 215