1 #ifndef ARM_COMMON__KVM_ARCH_H 2 #define ARM_COMMON__KVM_ARCH_H 3 4 #include <stdbool.h> 5 #include <linux/const.h> 6 #include <linux/types.h> 7 8 #include "arm-common/gic.h" 9 10 #define ARM_IOPORT_AREA _AC(0x0000000000000000, UL) 11 #define ARM_MMIO_AREA _AC(0x0000000000010000, UL) 12 #define ARM_AXI_AREA _AC(0x0000000040000000, UL) 13 #define ARM_MEMORY_AREA _AC(0x0000000080000000, UL) 14 15 #define ARM_LOMAP_MAX_MEMORY ((1ULL << 32) - ARM_MEMORY_AREA) 16 #define ARM_HIMAP_MAX_MEMORY ((1ULL << 40) - ARM_MEMORY_AREA) 17 18 #define ARM_GIC_DIST_BASE (ARM_AXI_AREA - ARM_GIC_DIST_SIZE) 19 #define ARM_GIC_CPUI_BASE (ARM_GIC_DIST_BASE - ARM_GIC_CPUI_SIZE) 20 #define ARM_GIC_SIZE (ARM_GIC_DIST_SIZE + ARM_GIC_CPUI_SIZE) 21 22 #define ARM_IOPORT_SIZE (ARM_MMIO_AREA - ARM_IOPORT_AREA) 23 #define ARM_VIRTIO_MMIO_SIZE (ARM_AXI_AREA - (ARM_MMIO_AREA + ARM_GIC_SIZE)) 24 #define ARM_PCI_CFG_SIZE (1ULL << 24) 25 #define ARM_PCI_MMIO_SIZE (ARM_MEMORY_AREA - \ 26 (ARM_AXI_AREA + ARM_PCI_CFG_SIZE)) 27 28 #define KVM_IOPORT_AREA ARM_IOPORT_AREA 29 #define KVM_PCI_CFG_AREA ARM_AXI_AREA 30 #define KVM_PCI_MMIO_AREA (KVM_PCI_CFG_AREA + ARM_PCI_CFG_SIZE) 31 #define KVM_VIRTIO_MMIO_AREA ARM_MMIO_AREA 32 33 /* 34 * On a GICv3 there must be one redistributor per vCPU. 35 * The value here is the size for one, we multiply this at runtime with 36 * the number of requested vCPUs to get the actual size. 37 */ 38 #define ARM_GIC_REDIST_SIZE 0x20000 39 40 #define KVM_IRQ_OFFSET GIC_SPI_IRQ_BASE 41 42 #define KVM_VM_TYPE 0 43 44 #define VIRTIO_DEFAULT_TRANS(kvm) \ 45 ((kvm)->cfg.arch.virtio_trans_pci ? VIRTIO_PCI : VIRTIO_MMIO) 46 47 #define VIRTIO_RING_ENDIAN (VIRTIO_ENDIAN_LE | VIRTIO_ENDIAN_BE) 48 49 static inline bool arm_addr_in_ioport_region(u64 phys_addr) 50 { 51 u64 limit = KVM_IOPORT_AREA + ARM_IOPORT_SIZE; 52 return phys_addr >= KVM_IOPORT_AREA && phys_addr < limit; 53 } 54 55 struct kvm_arch { 56 /* 57 * We may have to align the guest memory for virtio, so keep the 58 * original pointers here for munmap. 59 */ 60 void *ram_alloc_start; 61 u64 ram_alloc_size; 62 63 /* 64 * Guest addresses for memory layout. 65 */ 66 u64 memory_guest_start; 67 u64 kern_guest_start; 68 u64 initrd_guest_start; 69 u64 initrd_size; 70 u64 dtb_guest_start; 71 }; 72 73 #endif /* ARM_COMMON__KVM_ARCH_H */ 74