95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
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#ifndef __KVM_IA64_MISC_H
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#define __KVM_IA64_MISC_H
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#include <linux/kvm_host.h>
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/*
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* misc.h
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* Copyright (C) 2007, Intel Corporation.
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* Xiantao Zhang (xiantao.zhang@intel.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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*/
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/*
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*Return p2m base address at host side!
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*/
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static inline uint64_t *kvm_host_get_pmt(struct kvm *kvm)
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{
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return (uint64_t *)(kvm->arch.vm_base +
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offsetof(struct kvm_vm_data, kvm_p2m));
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}
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static inline void kvm_set_pmt_entry(struct kvm *kvm, gfn_t gfn,
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u64 paddr, u64 mem_flags)
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{
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uint64_t *pmt_base = kvm_host_get_pmt(kvm);
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unsigned long pte;
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pte = PAGE_ALIGN(paddr) | mem_flags;
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pmt_base[gfn] = pte;
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}
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/*Function for translating host address to guest address*/
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static inline void *to_guest(struct kvm *kvm, void *addr)
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{
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return (void *)((unsigned long)(addr) - kvm->arch.vm_base +
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KVM_VM_DATA_BASE);
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}
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/*Function for translating guest address to host address*/
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static inline void *to_host(struct kvm *kvm, void *addr)
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{
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return (void *)((unsigned long)addr - KVM_VM_DATA_BASE
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+ kvm->arch.vm_base);
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}
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/* Get host context of the vcpu */
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static inline union context *kvm_get_host_context(struct kvm_vcpu *vcpu)
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{
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union context *ctx = &vcpu->arch.host;
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return to_guest(vcpu->kvm, ctx);
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}
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/* Get guest context of the vcpu */
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static inline union context *kvm_get_guest_context(struct kvm_vcpu *vcpu)
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{
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union context *ctx = &vcpu->arch.guest;
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return to_guest(vcpu->kvm, ctx);
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}
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/* kvm get exit data from gvmm! */
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static inline struct exit_ctl_data *kvm_get_exit_data(struct kvm_vcpu *vcpu)
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{
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return &vcpu->arch.exit_data;
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}
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/*kvm get vcpu ioreq for kvm module!*/
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static inline struct kvm_mmio_req *kvm_get_vcpu_ioreq(struct kvm_vcpu *vcpu)
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{
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struct exit_ctl_data *p_ctl_data;
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if (vcpu) {
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p_ctl_data = kvm_get_exit_data(vcpu);
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if (p_ctl_data->exit_reason == EXIT_REASON_MMIO_INSTRUCTION)
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return &p_ctl_data->u.ioreq;
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}
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return NULL;
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}
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#endif
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