| /* |
| * SPAPR PHB definitions |
| * |
| * Modifications by Matt Evans <matt@ozlabs.org>, IBM Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published |
| * by the Free Software Foundation. |
| */ |
| |
| #ifndef SPAPR_PCI_H |
| #define SPAPR_PCI_H |
| |
| #include "kvm/kvm.h" |
| #include "spapr.h" |
| #include <inttypes.h> |
| |
| /* With XICS, we can easily accomodate 1 IRQ per PCI device. */ |
| |
| #define SPAPR_PCI_NUM_LSI 256 |
| |
| struct spapr_phb { |
| uint64_t buid; |
| uint64_t mem_addr; |
| uint64_t mem_size; |
| uint64_t io_addr; |
| uint64_t io_size; |
| }; |
| |
| void spapr_create_phb(struct kvm *kvm, |
| const char *busname, uint64_t buid, |
| uint64_t mem_win_addr, uint64_t mem_win_size, |
| uint64_t io_win_addr, uint64_t io_win_size); |
| |
| int spapr_populate_pci_devices(struct kvm *kvm, |
| uint32_t xics_phandle, |
| void *fdt); |
| |
| static inline bool spapr_phb_mmio(struct kvm_cpu *vcpu, u64 phys_addr, u8 *data, u32 len, u8 is_write) |
| { |
| if ((phys_addr >= SPAPR_PCI_IO_WIN_ADDR) && |
| (phys_addr < SPAPR_PCI_IO_WIN_ADDR + |
| SPAPR_PCI_IO_WIN_SIZE)) { |
| return kvm__emulate_io(vcpu, phys_addr - SPAPR_PCI_IO_WIN_ADDR, |
| data, is_write ? KVM_EXIT_IO_OUT : |
| KVM_EXIT_IO_IN, |
| len, 1); |
| } else if ((phys_addr >= SPAPR_PCI_MEM_WIN_ADDR) && |
| (phys_addr < SPAPR_PCI_MEM_WIN_ADDR + |
| SPAPR_PCI_MEM_WIN_SIZE)) { |
| return kvm__emulate_mmio(vcpu, phys_addr - SPAPR_PCI_MEM_WIN_ADDR, |
| data, len, is_write); |
| } |
| return false; |
| } |
| |
| #endif |
