CAMLprim value stub_xc_hvm_build_native(value xc_handle, value domid,
value mem_max_mib, value mem_start_mib, value image_name, value store_evtchn, value console_evtchn)
{
CAMLparam5(xc_handle, domid, mem_max_mib, mem_start_mib, image_name);
CAMLxparam2(store_evtchn, console_evtchn);
CAMLlocal1(result);
char *image_name_c = strdup(String_val(image_name));
char *error[256];
xc_interface *xch;
unsigned long store_mfn=0;
unsigned long console_mfn=0;
int r;
struct flags f;
/* The xenguest interface changed and was backported to XCP: */
#if defined(XENGUEST_HAS_HVM_BUILD_ARGS) || (__XEN_LATEST_INTERFACE_VERSION__ >= 0x00040200)
struct xc_hvm_build_args args;
#endif
get_flags(&f, _D(domid));
xch = _H(xc_handle);
configure_vcpus(xch, _D(domid), f);
configure_tsc(xch, _D(domid), f);
#if defined(XENGUEST_HAS_HVM_BUILD_ARGS) || (__XEN_LATEST_INTERFACE_VERSION__ >= 0x00040200)
args.mem_size = (uint64_t)Int_val(mem_max_mib) << 20;
args.mem_target = (uint64_t)Int_val(mem_start_mib) << 20;
args.mmio_size = f.mmio_size_mib << 20;
args.image_file_name = image_name_c;
#endif
caml_enter_blocking_section ();
#if defined(XENGUEST_HAS_HVM_BUILD_ARGS) || (__XEN_LATEST_INTERFACE_VERSION__ >= 0x00040200)
r = xc_hvm_build(xch, _D(domid), &args);
#else
r = xc_hvm_build_target_mem(xch, _D(domid),
Int_val(mem_max_mib),
Int_val(mem_start_mib),
image_name_c);
#endif
caml_leave_blocking_section ();
free(image_name_c);
if (r)
failwith_oss_xc(xch, "hvm_build");
r = hvm_build_set_params(xch, _D(domid), Int_val(store_evtchn), &store_mfn,
Int_val(console_evtchn), &console_mfn, f);
if (r)
failwith_oss_xc(xch, "hvm_build_params");
result = caml_alloc_tuple(2);
Store_field(result, 0, caml_copy_nativeint(store_mfn));
Store_field(result, 1, caml_copy_nativeint(console_mfn));
CAMLreturn(result);
}
int stub_xc_hvm_build_with_mem(uint64_t max_mem_mib, uint64_t max_start_mib,
const char *image)
{
uint64_t lowmem_end, highmem_start, highmem_end, mmio_start;
struct xc_hvm_build_args args = {
.mem_size = max_mem_mib << 20,
.mem_target = max_start_mib << 20,
.mmio_size = HVM_BELOW_4G_MMIO_LENGTH,
.image_file_name = image,
};
unsigned int i, j, nr = 0;
struct e820entry *e820;
int rc;
unsigned int nr_rdm_entries[MAX_RMRR_DEVICES] = {0};
unsigned int nr_rmrr_devs = 0;
struct xen_reserved_device_memory *xrdm[MAX_RMRR_DEVICES] = {0};
unsigned long rmrr_overlapped_ram = 0;
char *s;
if ( pci_passthrough_sbdf_list )
{
s = strtok(pci_passthrough_sbdf_list,",");
while ( s != NULL )
{
unsigned int seg, bus, device, func;
xg_info("Getting RMRRs for device '%s'\n",s);
if ( parse_pci_sbdf(s, &seg, &bus, &device, &func) )
{
if ( !get_rdm(seg, bus, (device << 3) + func,
&nr_rdm_entries[nr_rmrr_devs], &xrdm[nr_rmrr_devs]) )
nr_rmrr_devs++;
}
if ( nr_rmrr_devs == MAX_RMRR_DEVICES )
{
xg_err("Error: hit limit of %d RMRR devices for domain\n",
MAX_RMRR_DEVICES);
exit(1);
}
s = strtok (NULL, ",");
}
}
e820 = malloc(sizeof(*e820) * E820MAX);
if (!e820)
return -ENOMEM;
lowmem_end = args.mem_size;
highmem_end = highmem_start = 1ull << 32;
mmio_start = highmem_start - args.mmio_size;
if ( lowmem_end > mmio_start )
{
highmem_end = (1ull << 32) + (lowmem_end - mmio_start);
lowmem_end = mmio_start;
}
args.lowmem_end = lowmem_end;
args.highmem_end = highmem_end;
args.mmio_start = mmio_start;
/* Leave low 1MB to HVMLoader... */
e820[nr].addr = 0x100000u;
e820[nr].size = args.lowmem_end - 0x100000u;
e820[nr].type = E820_RAM;
nr++;
/* RDM mapping */
for (i = 0; i < nr_rmrr_devs; i++)
{
for (j = 0; j < nr_rdm_entries[i]; j++)
{
e820[nr].addr = xrdm[i][j].start_pfn << XC_PAGE_SHIFT;
e820[nr].size = xrdm[i][j].nr_pages << XC_PAGE_SHIFT;
e820[nr].type = E820_RESERVED;
xg_info("Adding RMRR 0x%lx size 0x%lx\n", e820[nr].addr, e820[nr].size);
if ( e820[nr].addr < args.lowmem_end ) {
rmrr_overlapped_ram += ( args.lowmem_end - e820[nr].addr );
args.lowmem_end = e820[nr].addr;
}
nr++;
}
}
e820[0].size -= rmrr_overlapped_ram;
args.highmem_end += rmrr_overlapped_ram;
args.mmio_size += rmrr_overlapped_ram;
args.mmio_start -= rmrr_overlapped_ram;
for (i = 0; i < nr_rmrr_devs; i++)
{
free(xrdm[i]);
}
if ( args.highmem_end > highmem_start )
{
e820[nr].addr = highmem_start;
e820[nr].size = args.highmem_end - e820[nr].addr;
e820[nr].type = E820_RAM;
nr++;
}
rc = xc_hvm_build(xch, domid, &args);
if (!rc)
rc = xc_domain_set_memory_map(xch, domid, e820, nr);
free(e820);
return rc;
}
int stub_xc_hvm_build(int mem_max_mib, int mem_start_mib, const char *image_name,
int store_evtchn, int store_domid,
int console_evtchn, int console_domid,
unsigned long *store_mfn, unsigned long *console_mfn)
{
int r;
struct flags f;
get_flags(&f);
configure_vcpus(f);
configure_tsc(f);
r = stub_xc_hvm_build_with_mem(mem_max_mib, mem_start_mib, image_name);
if ( r )
failwith_oss_xc("hvm_build");
r = hvm_build_set_params(store_evtchn, store_mfn,
console_evtchn, console_mfn, f);
if ( r )
failwith_oss_xc("hvm_build_params");
r = construct_cpuid_policy(&f, true);
if ( r )
failwith_oss_xc("construct_cpuid_policy");
r = xc_dom_gnttab_hvm_seed(xch, domid, *console_mfn, *store_mfn,
console_domid, store_domid);
if ( r )
failwith_oss_xc("xc_dom_gnttab_hvm_seed");
free_flags(&f);
return 0;
}
