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#ifndef KVMXX_H
#define KVMXX_H
#include <string>
#include <signal.h>
#include <unistd.h>
#include <vector>
#include <errno.h>
#include <linux/kvm.h>
#include <stdint.h>
namespace kvm {
class system;
class vm;
class vcpu;
class fd;
class fd {
public:
explicit fd(int n);
explicit fd(std::string path, int flags);
fd(const fd& other);
~fd() { ::close(_fd); }
int get() { return _fd; }
long ioctl(unsigned nr, long arg);
long ioctlp(unsigned nr, void *arg) {
return ioctl(nr, reinterpret_cast<long>(arg));
}
private:
int _fd;
};
class vcpu {
public:
vcpu(vm& vm, int fd);
~vcpu();
void run();
kvm_run *shared();
kvm_regs regs();
void set_regs(const kvm_regs& regs);
kvm_sregs sregs();
void set_sregs(const kvm_sregs& sregs);
std::vector<kvm_msr_entry> msrs(std::vector<uint32_t> indices);
void set_msrs(const std::vector<kvm_msr_entry>& msrs);
void set_debug(uint64_t dr[8], bool enabled, bool singlestep);
private:
class kvm_msrs_ptr;
private:
vm& _vm;
fd _fd;
kvm_run *_shared;
unsigned _mmap_size;
friend class vm;
};
class vm {
public:
explicit vm(system& system);
void set_memory_region(int slot, void *addr, uint64_t gpa, size_t len,
uint32_t flags = 0);
void get_dirty_log(int slot, void *log);
void set_tss_addr(uint32_t addr);
void set_ept_identity_map_addr(uint64_t addr);
system& sys() { return _system; }
private:
system& _system;
fd _fd;
friend class system;
friend class vcpu;
};
class system {
public:
explicit system(std::string device_node = "/dev/kvm");
bool check_extension(int extension);
int get_extension_int(int extension);
private:
fd _fd;
friend class vcpu;
friend class vm;
};
};
#endif
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