/*
** Copyright (c) 2011, Intel Corporation
**
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
**
** This program is distributed in the hope that 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.
*/
/* HAX module interface - darwin version */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/ioctl.h>
#include "target-i386/hax-i386.h"
hax_fd hax_mod_open(void)
{
int fd = open("/dev/HAX", O_RDWR);
if (fd == -1)
{
dprint("Failed to open the hax module\n");
return -errno;
}
return fd;
}
int hax_populate_ram(uint64_t va, uint32_t size)
{
int ret;
struct hax_alloc_ram_info info;
if (!hax_global.vm || !hax_global.vm->fd)
{
dprint("Allocate memory before vm create?\n");
return -EINVAL;
}
info.size = size;
info.va = va;
ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_ALLOC_RAM, &info);
if (ret < 0)
{
dprint("Failed to allocate %x memory\n", size);
return ret;
}
return 0;
}
int hax_set_phys_mem(hwaddr start_addr, ram_addr_t size, ram_addr_t phys_offset)
{
struct hax_set_ram_info info, *pinfo = &info;
int ret;
ram_addr_t flags = phys_offset & ~TARGET_PAGE_MASK;
/* We look for the RAM and ROM only */
if (flags >= IO_MEM_UNASSIGNED)
return 0;
if ( (start_addr & ~TARGET_PAGE_MASK) || (size & ~TARGET_PAGE_MASK))
{
dprint("set_phys_mem %x %lx requires page aligned addr and size\n", start_addr, size);
exit(1);
return -1;
}
info.pa_start = start_addr;
info.size = size;
info.va = (uint64_t)qemu_get_ram_ptr(phys_offset);
info.flags = (flags & IO_MEM_ROM) ? 1 : 0;
ret = ioctl(hax_global.vm->fd, HAX_VM_IOCTL_SET_RAM, pinfo);
if (ret < 0)
{
dprint("has set phys mem failed\n");
exit(1);
}
return ret;
}
int hax_capability(struct hax_state *hax, struct hax_capabilityinfo *cap)
{
int ret;
ret = ioctl(hax->fd, HAX_IOCTL_CAPABILITY, cap);
if (ret == -1)
{
dprint("Failed to get HAX capability\n");
return -errno;
}
return 0;
}
int hax_mod_version(struct hax_state *hax, struct hax_module_version *version)
{
int ret;
ret = ioctl(hax->fd, HAX_IOCTL_VERSION, version);
if (ret == -1)
{
dprint("Failed to get HAX version\n");
return -errno;
}
return 0;
}
static char *hax_vm_devfs_string(int vm_id)
{
char *name;
if (vm_id > MAX_VM_ID)
{
dprint("Too big VM id\n");
return NULL;
}
name = g_strdup("/dev/hax_vm/vmxx");
if (!name)
return NULL;
sprintf(name, "/dev/hax_vm/vm%02d", vm_id);
return name;
}
static char *hax_vcpu_devfs_string(int vm_id, int vcpu_id)
{
char *name;
if (vm_id > MAX_VM_ID || vcpu_id > MAX_VCPU_ID)
{
dprint("Too big vm id %x or vcpu id %x\n", vm_id, vcpu_id);
return NULL;
}
name = g_strdup("/dev/hax_vmxx/vcpuyy");
if (!name)
return NULL;
sprintf(name, "/dev/hax_vm%02d/vcpu%02d", vm_id, vcpu_id);
return name;
}
int hax_host_create_vm(struct hax_state *hax, int *vmid)
{
int ret;
int vm_id = 0;
if (hax_invalid_fd(hax->fd))
return -EINVAL;
if (hax->vm)
return 0;
ret = ioctl(hax->fd, HAX_IOCTL_CREATE_VM, &vm_id);
*vmid = vm_id;
return ret;
}
hax_fd hax_host_open_vm(struct hax_state *hax, int vm_id)
{
hax_fd fd;
char *vm_name = NULL;
vm_name = hax_vm_devfs_string(vm_id);
if (!vm_name)
return -1;
fd = open(vm_name, O_RDWR);
g_free(vm_name);
return fd;
}
int hax_notify_qemu_version(hax_fd vm_fd, struct hax_qemu_version *qversion)
{
int ret;
if (hax_invalid_fd(vm_fd))
return -EINVAL;
ret = ioctl(vm_fd, HAX_VM_IOCTL_NOTIFY_QEMU_VERSION, qversion);
if (ret == -1)
{
dprint("Failed to notify qemu API version\n");
return -errno;
}
return 0;
}
/*
* Simply assume that the size should be bigger than the hax_tunnel,
* since the hax_tunnel can be extended later with backward
* compatibility.
*/
int hax_host_create_vcpu(hax_fd vm_fd, int vcpuid)
{
int ret;
ret = ioctl(vm_fd, HAX_VM_IOCTL_VCPU_CREATE, &vcpuid);
if (ret < 0)
dprint("Failed to create vcpu %x\n", vcpuid);
return ret;
}
hax_fd hax_host_open_vcpu(int vmid, int vcpuid)
{
char *devfs_path = NULL;
hax_fd fd;
devfs_path = hax_vcpu_devfs_string(vmid, vcpuid);
if (!devfs_path)
{
dprint("Failed to get the devfs\n");
return -EINVAL;
}
fd = open(devfs_path, O_RDWR);
g_free(devfs_path);
if (fd < 0)
dprint("Failed to open the vcpu devfs\n");
return fd;
}
int hax_host_setup_vcpu_channel(struct hax_vcpu_state *vcpu)
{
int ret;
struct hax_tunnel_info info;
ret = ioctl(vcpu->fd, HAX_VCPU_IOCTL_SETUP_TUNNEL, &info);
if (ret)
{
dprint("Failed to setup the hax tunnel\n");
return ret;
}
if (!valid_hax_tunnel_size(info.size))
{
dprint("Invalid hax tunnel size %x\n", info.size);
ret = -EINVAL;
return ret;
}
vcpu->tunnel = (struct hax_tunnel *)(info.va);
vcpu->iobuf = (unsigned char *)(info.io_va);
return 0;
}
int hax_vcpu_run(struct hax_vcpu_state* vcpu)
{
int ret;
ret = ioctl(vcpu->fd, HAX_VCPU_IOCTL_RUN, NULL);
return ret;
}
int hax_sync_fpu(CPUState *env, struct fx_layout *fl, int set)
{
int ret, fd;
fd = hax_vcpu_get_fd(env);
if (fd <= 0)
return -1;
if (set)
ret = ioctl(fd, HAX_VCPU_IOCTL_SET_FPU, fl);
else
ret = ioctl(fd, HAX_VCPU_IOCTL_GET_FPU, fl);
return ret;
}
int hax_sync_msr(CPUState *env, struct hax_msr_data *msrs, int set)
{
int ret, fd;
fd = hax_vcpu_get_fd(env);
if (fd <= 0)
return -1;
if (set)
ret = ioctl(fd, HAX_VCPU_IOCTL_SET_MSRS, msrs);
else
ret = ioctl(fd, HAX_VCPU_IOCTL_GET_MSRS, msrs);
return ret;
}
int hax_sync_vcpu_state(CPUState *env, struct vcpu_state_t *state, int set)
{
int ret, fd;
fd = hax_vcpu_get_fd(env);
if (fd <= 0)
return -1;
if (set)
ret = ioctl(fd, HAX_VCPU_SET_REGS, state);
else
ret = ioctl(fd, HAX_VCPU_GET_REGS, state);
return ret;
}
int hax_inject_interrupt(CPUState *env, int vector)
{
int ret, fd;
fd = hax_vcpu_get_fd(env);
if (fd <= 0)
return -1;
ret = ioctl(fd, HAX_VCPU_IOCTL_INTERRUPT, &vector);
return ret;
}