int xc_linux_build(xc_interface *xch, uint32_t domid,
unsigned int mem_mb,
const char *image_name,
const char *initrd_name,
const char *cmdline,
const char *features,
unsigned long flags,
unsigned int store_evtchn,
unsigned long *store_mfn,
unsigned int console_evtchn,
unsigned long *console_mfn)
{
struct xc_dom_image *dom;
int rc;
xc_dom_loginit(xch);
dom = xc_dom_allocate(xch, cmdline, features);
if (dom == NULL)
return -1;
if ( (rc = xc_dom_kernel_file(dom, image_name)) != 0 )
goto out;
if ( initrd_name && strlen(initrd_name) &&
((rc = xc_dom_ramdisk_file(dom, initrd_name)) != 0) )
goto out;
rc = xc_linux_build_internal(dom, xch, domid,
mem_mb, flags,
store_evtchn, store_mfn,
console_evtchn, console_mfn);
out:
xc_dom_release(dom);
return rc;
}
int xc_get_bit_size(xc_interface *xch,
const char *image_name, const char *cmdline,
const char *features, int *bit_size)
{
struct xc_dom_image *dom;
int rc;
*bit_size = 0;
dom = xc_dom_allocate(xch, cmdline, features);
if (dom == NULL)
return -1;
if ( (rc = xc_dom_kernel_file(dom, image_name)) != 0 )
goto out;
if ( (rc = xc_dom_parse_image(dom)) != 0 )
goto out;
if( dom->guest_type != NULL){
if(strstr(dom->guest_type, "x86_64") != NULL)
*bit_size = X86_64_B_SIZE; //64bit Guest
if(strstr(dom->guest_type, "x86_32") != NULL)
*bit_size = X86_32_B_SIZE; //32bit Guest
}
out:
xc_dom_release(dom);
return rc;
}
int xc_dom_linux_build(xc_interface *xch,
struct xc_dom_image *dom,
uint32_t domid,
unsigned int mem_mb,
const char *image_name,
const char *initrd_name,
unsigned long flags,
unsigned int store_evtchn,
unsigned long *store_mfn,
unsigned int console_evtchn, unsigned long *console_mfn)
{
int rc;
if ( (rc = xc_dom_kernel_file(dom, image_name)) != 0 )
return rc;
if ( initrd_name && strlen(initrd_name) &&
((rc = xc_dom_ramdisk_file(dom, initrd_name)) != 0) )
return rc;
return xc_linux_build_internal(dom, xch, domid,
mem_mb, flags,
store_evtchn, store_mfn,
console_evtchn, console_mfn);
}
static int build(xc_interface *xch)
{
char cmdline[512];
uint32_t ssid;
xen_domain_handle_t handle = { 0 };
int rv, xs_fd;
struct xc_dom_image *dom = NULL;
int limit_kb = (memory + 1) * 1024;
xs_fd = open("/dev/xen/xenbus_backend", O_RDWR);
if ( xs_fd == -1 )
{
fprintf(stderr, "Could not open /dev/xen/xenbus_backend\n");
return -1;
}
if ( flask )
{
rv = xc_flask_context_to_sid(xch, flask, strlen(flask), &ssid);
if ( rv )
{
fprintf(stderr, "xc_flask_context_to_sid failed\n");
goto err;
}
}
else
{
ssid = SECINITSID_DOMU;
}
rv = xc_domain_create(xch, ssid, handle, XEN_DOMCTL_CDF_xs_domain,
&domid, NULL);
if ( rv )
{
fprintf(stderr, "xc_domain_create failed\n");
goto err;
}
rv = xc_domain_max_vcpus(xch, domid, 1);
if ( rv )
{
fprintf(stderr, "xc_domain_max_vcpus failed\n");
goto err;
}
rv = xc_domain_setmaxmem(xch, domid, limit_kb);
if ( rv )
{
fprintf(stderr, "xc_domain_setmaxmem failed\n");
goto err;
}
rv = xc_domain_set_memmap_limit(xch, domid, limit_kb);
if ( rv )
{
fprintf(stderr, "xc_domain_set_memmap_limit failed\n");
goto err;
}
rv = ioctl(xs_fd, IOCTL_XENBUS_BACKEND_SETUP, domid);
if ( rv < 0 )
{
fprintf(stderr, "Xenbus setup ioctl failed\n");
goto err;
}
if ( param )
snprintf(cmdline, 512, "--event %d --internal-db %s", rv, param);
else
snprintf(cmdline, 512, "--event %d --internal-db", rv);
dom = xc_dom_allocate(xch, cmdline, NULL);
rv = xc_dom_kernel_file(dom, kernel);
if ( rv )
{
fprintf(stderr, "xc_dom_kernel_file failed\n");
goto err;
}
if ( ramdisk )
{
rv = xc_dom_ramdisk_file(dom, ramdisk);
if ( rv )
{
fprintf(stderr, "xc_dom_ramdisk_file failed\n");
goto err;
}
}
rv = xc_dom_boot_xen_init(dom, xch, domid);
if ( rv )
{
fprintf(stderr, "xc_dom_boot_xen_init failed\n");
goto err;
}
rv = xc_dom_parse_image(dom);
if ( rv )
{
fprintf(stderr, "xc_dom_parse_image failed\n");
goto err;
}
rv = xc_dom_mem_init(dom, memory);
if ( rv )
{
fprintf(stderr, "xc_dom_mem_init failed\n");
goto err;
}
rv = xc_dom_boot_mem_init(dom);
if ( rv )
{
fprintf(stderr, "xc_dom_boot_mem_init failed\n");
goto err;
}
rv = xc_dom_build_image(dom);
if ( rv )
{
fprintf(stderr, "xc_dom_build_image failed\n");
goto err;
}
rv = xc_dom_boot_image(dom);
if ( rv )
{
fprintf(stderr, "xc_dom_boot_image failed\n");
goto err;
}
rv = xc_domain_set_virq_handler(xch, domid, VIRQ_DOM_EXC);
if ( rv )
{
fprintf(stderr, "xc_domain_set_virq_handler failed\n");
goto err;
}
rv = xc_domain_unpause(xch, domid);
if ( rv )
{
fprintf(stderr, "xc_domain_unpause failed\n");
goto err;
}
rv = 0;
err:
if ( dom )
xc_dom_release(dom);
if ( xs_fd >= 0 )
close(xs_fd);
/* if we failed then destroy the domain */
if ( rv && domid != ~0 )
xc_domain_destroy(xch, domid);
return rv;
}