@@ -623,6 +623,11 @@ More information about Xen gfx_passthru feature is available
on the XenVGAPassthrough L<http://wiki.xen.org/wiki/XenVGAPassthrough>
wiki page.
+=item B<dtdev=[ "DTDEV_PATH", "DTDEV_PATH", ... ]>
+
+Specifies the host device node to passthrough to this guest. Each DTDEV_PATH
+is the absolute path in the device tree.
+
=item B<ioports=[ "IOPORT_RANGE", "IOPORT_RANGE", ... ]>
Allow guest to access specific legacy I/O ports. Each B<IOPORT_RANGE>
@@ -775,7 +775,7 @@ static void parse_config_data(const char *config_source,
long l;
XLU_Config *config;
XLU_ConfigList *cpus, *vbds, *nics, *pcis, *cvfbs, *cpuids, *vtpms;
- XLU_ConfigList *ioports, *irqs, *iomem;
+ XLU_ConfigList *ioports, *irqs, *iomem, *dtdevs;
int num_ioports, num_irqs, num_iomem, num_cpus;
int pci_power_mgmt = 0;
int pci_msitranslate = 0;
@@ -1483,6 +1483,25 @@ skip_vfb:
libxl_defbool_set(&b_info->u.pv.e820_host, true);
}
+ if (!xlu_cfg_get_list (config, "dtdev", &dtdevs, 0, 0)) {
+ d_config->num_dtdevs = 0;
+ d_config->dtdevs = NULL;
+ for (i = 0; (buf = xlu_cfg_get_listitem(dtdevs, i)) != NULL; i++) {
+ libxl_device_dtdev *dtdev;
+
+ d_config->dtdevs = (libxl_device_dtdev *) xrealloc(d_config->dtdevs, sizeof (libxl_device_dtdev) * (d_config->num_dtdevs + 1));
+ dtdev = d_config->dtdevs + d_config->num_dtdevs;
+ libxl_device_dtdev_init(dtdev);
+
+ dtdev->path = strdup(buf);
+ if (dtdev->path == NULL) {
+ fprintf(stderr, "unable to duplicate string for dtdevs\n");
+ exit(-1);
+ }
+ d_config->num_dtdevs++;
+ }
+ }
+
switch (xlu_cfg_get_list(config, "cpuid", &cpuids, 0, 1)) {
case 0:
{
The option "dtdev" will be used to passthrough a non-PCI device described in the device tree to a guest. Signed-off-by: Julien Grall <julien.grall@linaro.org> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> --- Changes in v2: - libxl_device_dt has been rename to libxl_device_dtdev - use xrealloc instead of realloc --- docs/man/xl.cfg.pod.5 | 5 +++++ tools/libxl/xl_cmdimpl.c | 21 ++++++++++++++++++++- 2 files changed, 25 insertions(+), 1 deletion(-)