1 /* 2 * PPC64 architecture-specific definitions 3 * 4 * Copyright 2011 Matt Evans <matt@ozlabs.org>, IBM Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation. 9 */ 10 11 #ifndef KVM__KVM_ARCH_H 12 #define KVM__KVM_ARCH_H 13 14 #include <stdbool.h> 15 #include <linux/types.h> 16 #include <time.h> 17 18 /* 19 * MMIO lives after RAM, but it'd be nice if it didn't constantly move. 20 * Choose a suitably high address, e.g. 63T... This limits RAM size. 21 */ 22 #define PPC_MMIO_START 0x3F0000000000UL 23 #define PPC_MMIO_SIZE 0x010000000000UL 24 25 #define KERNEL_LOAD_ADDR 0x0000000000000000 26 #define KERNEL_START_ADDR 0x0000000000000000 27 #define KERNEL_SECONDARY_START_ADDR 0x0000000000000060 28 #define INITRD_LOAD_ADDR 0x0000000002800000 29 30 #define FDT_MAX_SIZE 0x10000 31 #define RTAS_MAX_SIZE 0x10000 32 33 #define TIMEBASE_FREQ 512000000ULL 34 35 #define KVM_MMIO_START PPC_MMIO_START 36 37 /* 38 * This is the address that pci_get_io_space_block() starts allocating 39 * from. Note that this is a PCI bus address. 40 */ 41 #define KVM_PCI_MMIO_AREA 0x1000000 42 #define KVM_VIRTIO_MMIO_AREA 0x2000000 43 44 struct spapr_phb; 45 46 struct kvm { 47 int sys_fd; /* For system ioctls(), i.e. /dev/kvm */ 48 int vm_fd; /* For VM ioctls() */ 49 timer_t timerid; /* Posix timer for interrupts */ 50 51 int nrcpus; /* Number of cpus to run */ 52 53 u32 mem_slots; /* for KVM_SET_USER_MEMORY_REGION */ 54 55 u64 ram_size; 56 void *ram_start; 57 58 u64 sdr1; 59 u32 pvr; 60 61 bool nmi_disabled; 62 63 bool single_step; 64 65 const char *vmlinux; 66 struct disk_image **disks; 67 int nr_disks; 68 unsigned long rtas_gra; 69 unsigned long rtas_size; 70 unsigned long fdt_gra; 71 unsigned long initrd_gra; 72 unsigned long initrd_size; 73 char *name; 74 int vm_state; 75 struct icp_state *icp; 76 struct spapr_phb *phb; 77 }; 78 79 /* Helper for the various bits of code that generate FDT nodes */ 80 #define _FDT(exp) \ 81 do { \ 82 int ret = (exp); \ 83 if (ret < 0) { \ 84 die("Error creating device tree: %s: %s\n", \ 85 #exp, fdt_strerror(ret)); \ 86 } \ 87 } while (0) 88 89 #endif /* KVM__KVM_ARCH_H */ 90