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/*
* This header is for functions & variables that will ONLY be
* used inside libkvm.
*
* derived from libkvm.c
*
* Copyright (C) 2006 Qumranet, Inc.
*
* Authors:
* Avi Kivity <avi@qumranet.com>
* Yaniv Kamay <yaniv@qumranet.com>
*
* This work is licensed under the GNU LGPL license, version 2.
*/
#ifndef KVM_COMMON_H
#define KVM_COMMON_H
/* FIXME: share this number with kvm */
/* FIXME: or dynamically alloc/realloc regions */
#ifndef __s390__
#define KVM_MAX_NUM_MEM_REGIONS 8u
#define MAX_VCPUS 16
#else
#define KVM_MAX_NUM_MEM_REGIONS 1u
#define MAX_VCPUS 64
#define LIBKVM_S390_ORIGIN (0UL)
#endif
/* kvm abi verison variable */
extern int kvm_abi;
/**
* \brief The KVM context
*
* The verbose KVM context
*/
struct kvm_context {
/// Filedescriptor to /dev/kvm
int fd;
int vm_fd;
int vcpu_fd[MAX_VCPUS];
struct kvm_run *run[MAX_VCPUS];
/// Callbacks that KVM uses to emulate various unvirtualizable functionality
struct kvm_callbacks *callbacks;
void *opaque;
/// is dirty pages logging enabled for all regions or not
int dirty_pages_log_all;
/// do not create in-kernel irqchip if set
int no_irqchip_creation;
/// in-kernel irqchip status
int irqchip_in_kernel;
/// do not create in-kernel pit if set
int no_pit_creation;
/// in-kernel pit status
int pit_in_kernel;
/// in-kernel coalesced mmio
int coalesced_mmio;
};
void init_slots(void);
int get_free_slot(kvm_context_t kvm);
void register_slot(int slot, unsigned long phys_addr, unsigned long len,
int user_alloc, unsigned long userspace_addr, unsigned flags);
void free_slot(int slot);
int get_slot(unsigned long phys_addr);
int kvm_alloc_kernel_memory(kvm_context_t kvm, unsigned long memory,
void **vm_mem);
int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory,
void **vm_mem);
void *kvm_create_kernel_phys_mem(kvm_context_t kvm, unsigned long phys_start,
unsigned long len, int log, int writable);
int kvm_arch_create(kvm_context_t kvm, unsigned long phys_mem_bytes,
void **vm_mem);
int kvm_arch_run(struct kvm_run *run, kvm_context_t kvm, int vcpu);
void kvm_show_code(kvm_context_t kvm, int vcpu);
int handle_halt(kvm_context_t kvm, int vcpu);
int handle_shutdown(kvm_context_t kvm, int vcpu);
void post_kvm_run(kvm_context_t kvm, int vcpu);
int pre_kvm_run(kvm_context_t kvm, int vcpu);
int handle_io_window(kvm_context_t kvm);
int handle_debug(kvm_context_t kvm, int vcpu);
int try_push_interrupts(kvm_context_t kvm);
#endif
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