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-rw-r--r--arch/ia64/kvm/misc.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/ia64/kvm/misc.h b/arch/ia64/kvm/misc.h
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+++ b/arch/ia64/kvm/misc.h
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+#ifndef __KVM_IA64_MISC_H
+#define __KVM_IA64_MISC_H
+
+#include <linux/kvm_host.h>
+/*
+ * misc.h
+ * Copyright (C) 2007, Intel Corporation.
+ * Xiantao Zhang (xiantao.zhang@intel.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ */
+
+/*
+ *Return p2m base address at host side!
+ */
+static inline uint64_t *kvm_host_get_pmt(struct kvm *kvm)
+{
+ return (uint64_t *)(kvm->arch.vm_base + KVM_P2M_OFS);
+}
+
+static inline void kvm_set_pmt_entry(struct kvm *kvm, gfn_t gfn,
+ u64 paddr, u64 mem_flags)
+{
+ uint64_t *pmt_base = kvm_host_get_pmt(kvm);
+ unsigned long pte;
+
+ pte = PAGE_ALIGN(paddr) | mem_flags;
+ pmt_base[gfn] = pte;
+}
+
+/*Function for translating host address to guest address*/
+
+static inline void *to_guest(struct kvm *kvm, void *addr)
+{
+ return (void *)((unsigned long)(addr) - kvm->arch.vm_base +
+ KVM_VM_DATA_BASE);
+}
+
+/*Function for translating guest address to host address*/
+
+static inline void *to_host(struct kvm *kvm, void *addr)
+{
+ return (void *)((unsigned long)addr - KVM_VM_DATA_BASE
+ + kvm->arch.vm_base);
+}
+
+/* Get host context of the vcpu */
+static inline union context *kvm_get_host_context(struct kvm_vcpu *vcpu)
+{
+ union context *ctx = &vcpu->arch.host;
+ return to_guest(vcpu->kvm, ctx);
+}
+
+/* Get guest context of the vcpu */
+static inline union context *kvm_get_guest_context(struct kvm_vcpu *vcpu)
+{
+ union context *ctx = &vcpu->arch.guest;
+ return to_guest(vcpu->kvm, ctx);
+}
+
+/* kvm get exit data from gvmm! */
+static inline struct exit_ctl_data *kvm_get_exit_data(struct kvm_vcpu *vcpu)
+{
+ return &vcpu->arch.exit_data;
+}
+
+/*kvm get vcpu ioreq for kvm module!*/
+static inline struct kvm_mmio_req *kvm_get_vcpu_ioreq(struct kvm_vcpu *vcpu)
+{
+ struct exit_ctl_data *p_ctl_data;
+
+ if (vcpu) {
+ p_ctl_data = kvm_get_exit_data(vcpu);
+ if (p_ctl_data->exit_reason == EXIT_REASON_MMIO_INSTRUCTION)
+ return &p_ctl_data->u.ioreq;
+ }
+
+ return NULL;
+}
+
+#endif