| Christoffer Dall | 45e96ea | 2013-01-20 18:43:58 -0500 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2012 - Virtual Open Systems and Columbia University |
| 3 | * Author: Christoffer Dall <c.dall@virtualopensystems.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License, version 2, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifndef __ARM_KVM_MMIO_H__ |
| 20 | #define __ARM_KVM_MMIO_H__ |
| 21 | |
| 22 | #include <linux/kvm_host.h> |
| 23 | #include <asm/kvm_asm.h> |
| 24 | #include <asm/kvm_arm.h> |
| 25 | |
| 26 | struct kvm_decode { |
| 27 | unsigned long rt; |
| 28 | bool sign_extend; |
| 29 | }; |
| 30 | |
| 31 | /* |
| 32 | * The in-kernel MMIO emulation code wants to use a copy of run->mmio, |
| 33 | * which is an anonymous type. Use our own type instead. |
| 34 | */ |
| 35 | struct kvm_exit_mmio { |
| 36 | phys_addr_t phys_addr; |
| 37 | u8 data[8]; |
| 38 | u32 len; |
| 39 | bool is_write; |
| 40 | }; |
| 41 | |
| 42 | static inline void kvm_prepare_mmio(struct kvm_run *run, |
| 43 | struct kvm_exit_mmio *mmio) |
| 44 | { |
| 45 | run->mmio.phys_addr = mmio->phys_addr; |
| 46 | run->mmio.len = mmio->len; |
| 47 | run->mmio.is_write = mmio->is_write; |
| 48 | memcpy(run->mmio.data, mmio->data, mmio->len); |
| 49 | run->exit_reason = KVM_EXIT_MMIO; |
| 50 | } |
| 51 | |
| 52 | int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run); |
| 53 | int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run, |
| 54 | phys_addr_t fault_ipa); |
| 55 | |
| 56 | #endif /* __ARM_KVM_MMIO_H__ */ |