projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a4f50038 XZ |
1 | #ifndef __KVM_IA64_MISC_H |
| 2 | #define __KVM_IA64_MISC_H | |
| 3 | ||
| 4 | #include <linux/kvm_host.h> | |
| 5 | /* | |
| 6 | * misc.h | |
| 7 | * Copyright (C) 2007, Intel Corporation. | |
| 8 | * Xiantao Zhang ([email protected]) | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify it | |
| 11 | * under the terms and conditions of the GNU General Public License, | |
| 12 | * version 2, as published by the Free Software Foundation. | |
| 13 | * | |
| 14 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 17 | * more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License along with | |
| 20 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
| 21 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
| 22 | * | |
| 23 | */ | |
| 24 | ||
| 25 | /* | |
| 26 | *Return p2m base address at host side! | |
| 27 | */ | |
| 28 | static inline uint64_t *kvm_host_get_pmt(struct kvm *kvm) | |
| 29 | { | |
| a917f7af XZ |
30 | return (uint64_t *)(kvm->arch.vm_base + |
| 31 | offsetof(struct kvm_vm_data, kvm_p2m)); | |
| a4f50038 XZ |
32 | } |
| 33 | ||
| 34 | static inline void kvm_set_pmt_entry(struct kvm *kvm, gfn_t gfn, | |
| 35 | u64 paddr, u64 mem_flags) | |
| 36 | { | |
| 37 | uint64_t *pmt_base = kvm_host_get_pmt(kvm); | |
| 38 | unsigned long pte; | |
| 39 | ||
| 40 | pte = PAGE_ALIGN(paddr) | mem_flags; | |
| 41 | pmt_base[gfn] = pte; | |
| 42 | } | |
| 43 | ||
| 44 | /*Function for translating host address to guest address*/ | |
| 45 | ||
| 46 | static inline void *to_guest(struct kvm *kvm, void *addr) | |
| 47 | { | |
| 48 | return (void *)((unsigned long)(addr) - kvm->arch.vm_base + | |
| 49 | KVM_VM_DATA_BASE); | |
| 50 | } | |
| 51 | ||
| 52 | /*Function for translating guest address to host address*/ | |
| 53 | ||
| 54 | static inline void *to_host(struct kvm *kvm, void *addr) | |
| 55 | { | |
| 56 | return (void *)((unsigned long)addr - KVM_VM_DATA_BASE | |
| 57 | + kvm->arch.vm_base); | |
| 58 | } | |
| 59 | ||
| 60 | /* Get host context of the vcpu */ | |
| 61 | static inline union context *kvm_get_host_context(struct kvm_vcpu *vcpu) | |
| 62 | { | |
| 63 | union context *ctx = &vcpu->arch.host; | |
| 64 | return to_guest(vcpu->kvm, ctx); | |
| 65 | } | |
| 66 | ||
| 67 | /* Get guest context of the vcpu */ | |
| 68 | static inline union context *kvm_get_guest_context(struct kvm_vcpu *vcpu) | |
| 69 | { | |
| 70 | union context *ctx = &vcpu->arch.guest; | |
| 71 | return to_guest(vcpu->kvm, ctx); | |
| 72 | } | |
| 73 | ||
| 74 | /* kvm get exit data from gvmm! */ | |
| 75 | static inline struct exit_ctl_data *kvm_get_exit_data(struct kvm_vcpu *vcpu) | |
| 76 | { | |
| 77 | return &vcpu->arch.exit_data; | |
| 78 | } | |
| 79 | ||
| 80 | /*kvm get vcpu ioreq for kvm module!*/ | |
| 81 | static inline struct kvm_mmio_req *kvm_get_vcpu_ioreq(struct kvm_vcpu *vcpu) | |
| 82 | { | |
| 83 | struct exit_ctl_data *p_ctl_data; | |
| 84 | ||
| 85 | if (vcpu) { | |
| 86 | p_ctl_data = kvm_get_exit_data(vcpu); | |
| 87 | if (p_ctl_data->exit_reason == EXIT_REASON_MMIO_INSTRUCTION) | |
| 88 | return &p_ctl_data->u.ioreq; | |
| 89 | } | |
| 90 | ||
| 91 | return NULL; | |
| 92 | } | |
| 93 | ||
| 94 | #endif |