/*
* restore_ops function. Sets extra hvm parameters and seeds the grant table.
*/
static int x86_hvm_stream_complete(struct xc_sr_context *ctx)
{
xc_interface *xch = ctx->xch;
int rc;
rc = xc_hvm_param_set(xch, ctx->domid, HVM_PARAM_STORE_EVTCHN,
ctx->restore.xenstore_evtchn);
if ( rc )
{
PERROR("Failed to set HVM_PARAM_STORE_EVTCHN");
return rc;
}
rc = xc_hvm_param_set(xch, ctx->domid, HVM_PARAM_CONSOLE_EVTCHN,
ctx->restore.console_evtchn);
if ( rc )
{
PERROR("Failed to set HVM_PARAM_CONSOLE_EVTCHN");
return rc;
}
rc = xc_domain_hvm_setcontext(xch, ctx->domid,
ctx->x86_hvm.restore.context,
ctx->x86_hvm.restore.contextsz);
if ( rc < 0 )
{
PERROR("Unable to restore HVM context");
return rc;
}
rc = xc_dom_gnttab_hvm_seed(xch, ctx->domid,
ctx->restore.console_gfn,
ctx->restore.xenstore_gfn,
ctx->restore.console_domid,
ctx->restore.xenstore_domid);
if ( rc )
{
PERROR("Failed to seed grant table");
return rc;
}
#ifdef XG_LIBXL_HVM_COMPAT
rc = handle_qemu(ctx);
if ( rc )
{
ERROR("Failed to dump qemu");
return rc;
}
#endif
return rc;
}
static int
xc_ia64_hvm_recv_context(int xc_handle, int io_fd, uint32_t dom,
unsigned long shared_info_frame,
struct xen_ia64_p2m_table *p2m_table,
unsigned int store_evtchn, unsigned long *store_mfn,
unsigned int console_evtchn,
unsigned long *console_mfn)
{
int rc = -1;
xc_dominfo_t info;
unsigned int i;
/* cpumap */
uint64_t *vcpumap = NULL;
/* HVM: magic frames for ioreqs and xenstore comms */
const int hvm_params[] = {
HVM_PARAM_STORE_PFN,
HVM_PARAM_IOREQ_PFN,
HVM_PARAM_BUFIOREQ_PFN,
HVM_PARAM_BUFPIOREQ_PFN,
};
const int NR_PARAMS = sizeof(hvm_params) / sizeof(hvm_params[0]);
/* ioreq_pfn, bufioreq_pfn, store_pfn */
uint64_t magic_pfns[NR_PARAMS];
/* HVM: a buffer for holding HVM contxt */
uint64_t rec_size = 0;
uint8_t *hvm_buf = NULL;
/* Read shared info. */
if (xc_ia64_recv_shared_info(xc_handle, io_fd, dom, shared_info_frame,
NULL))
goto out;
/* vcpu map */
if (xc_domain_getinfo(xc_handle, dom, 1, &info) != 1) {
ERROR("Could not get domain info");
goto out;
}
if (xc_ia64_recv_vcpumap(&info, io_fd, &vcpumap))
goto out;
/* vcpu context */
for (i = 0; i <= info.max_vcpu_id; i++) {
/* A copy of the CPU context of the guest. */
vcpu_guest_context_any_t ctxt_any;
if (!__test_bit(i, vcpumap))
continue;
if (xc_ia64_recv_vcpu_context(xc_handle, io_fd, dom, i, &ctxt_any))
goto out;
/* system context of vcpu is recieved as hvm context. */
}
/* Set HVM-specific parameters */
if (read_exact(io_fd, magic_pfns, sizeof(magic_pfns))) {
ERROR("error reading magic page addresses");
goto out;
}
/* These comms pages need to be zeroed at the start of day */
for (i = 0; i < NR_PARAMS; i++) {
rc = xc_clear_domain_page(xc_handle, dom, magic_pfns[i]);
if (rc != 0) {
ERROR("error zeroing magic pages: %i", rc);
goto out;
}
rc = xc_set_hvm_param(xc_handle, dom, hvm_params[i], magic_pfns[i]);
if (rc != 0) {
ERROR("error setting HVM params: %i", rc);
goto out;
}
}
rc = xc_set_hvm_param(xc_handle, dom,
HVM_PARAM_STORE_EVTCHN, store_evtchn);
if (rc != 0) {
ERROR("error setting HVM params: %i", rc);
goto out;
}
rc = -1;
*store_mfn = magic_pfns[0];
/* Read HVM context */
if (read_exact(io_fd, &rec_size, sizeof(rec_size))) {
ERROR("error read hvm context size!\n");
goto out;
}
hvm_buf = malloc(rec_size);
if (hvm_buf == NULL) {
ERROR("memory alloc for hvm context buffer failed");
errno = ENOMEM;
goto out;
}
if (read_exact(io_fd, hvm_buf, rec_size)) {
ERROR("error loading the HVM context");
goto out;
}
rc = xc_domain_hvm_setcontext(xc_handle, dom, hvm_buf, rec_size);
if (rc != 0) {
ERROR("error setting the HVM context");
goto out;
}
rc = 0;
out:
if (vcpumap != NULL)
free(vcpumap);
if (hvm_buf != NULL)
free(hvm_buf);
return rc;
}
