# HG changeset patch
# User Anthony PERARD <anthony.perard@xxxxxxxxxx>
# Date 1320416647 0
# Node ID 974b00c7c2d070bcd3b107623f7cb3dff78cd79e
# Parent a67944b1adfb67193817de02e6d143e39bfbbe17
libxl: Use QMP to insert a passthrough device when using upstream QEMU
Also move the xenstore specific code to a new function and add a
message if sscanf fails.
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
---
diff -r a67944b1adfb -r 974b00c7c2d0 tools/libxl/libxl_pci.c
--- a/tools/libxl/libxl_pci.c Fri Nov 04 14:24:07 2011 +0000
+++ b/tools/libxl/libxl_pci.c Fri Nov 04 14:24:07 2011 +0000
@@ -601,11 +601,52 @@
return 1;
}
+static int qemu_pci_add_xenstore(libxl__gc *gc, uint32_t domid,
+ libxl_device_pci *pcidev)
+{
+ libxl_ctx *ctx = libxl__gc_owner(gc);
+ int rc = 0;
+ char *path;
+ char *state, *vdevfn;
+
+ path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/state", domid);
+ state = libxl__xs_read(gc, XBT_NULL, path);
+ path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/parameter",
+ domid);
+ if (pcidev->vdevfn) {
+ libxl__xs_write(gc, XBT_NULL, path, PCI_BDF_VDEVFN,
+ pcidev->domain, pcidev->bus, pcidev->dev,
+ pcidev->func, pcidev->vdevfn);
+ } else {
+ libxl__xs_write(gc, XBT_NULL, path, PCI_BDF, pcidev->domain,
+ pcidev->bus, pcidev->dev, pcidev->func);
+ }
+ path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/command",
+ domid);
+ xs_write(ctx->xsh, XBT_NULL, path, "pci-ins", strlen("pci-ins"));
+ rc = libxl__wait_for_device_model(gc, domid, NULL, NULL,
+ pci_ins_check, state);
+ path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/parameter",
+ domid);
+ vdevfn = libxl__xs_read(gc, XBT_NULL, path);
+ path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/state",
+ domid);
+ if ( rc < 0 )
+ LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
+ "qemu refused to add device: %s", vdevfn);
+ else if ( sscanf(vdevfn, "0x%x", &pcidev->vdevfn) != 1 ) {
+ LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
+ "wrong format for the vdevfn: '%s'", vdevfn);
+ rc = -1;
+ }
+ xs_write(ctx->xsh, XBT_NULL, path, state, strlen(state));
+
+ return rc;
+}
+
static int do_pci_add(libxl__gc *gc, uint32_t domid, libxl_device_pci *pcidev,
int starting)
{
libxl_ctx *ctx = libxl__gc_owner(gc);
- char *path;
- char *state, *vdevfn;
int rc, hvm = 0;
switch (libxl__domain_type(gc, domid)) {
@@ -615,27 +656,16 @@
NULL, NULL, NULL) < 0) {
return ERROR_FAIL;
}
- path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/state",
domid);
- state = libxl__xs_read(gc, XBT_NULL, path);
- path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/parameter",
domid);
- if (pcidev->vdevfn)
- libxl__xs_write(gc, XBT_NULL, path, PCI_BDF_VDEVFN, pcidev->domain,
- pcidev->bus, pcidev->dev, pcidev->func,
pcidev->vdevfn);
- else
- libxl__xs_write(gc, XBT_NULL, path, PCI_BDF, pcidev->domain,
- pcidev->bus, pcidev->dev, pcidev->func);
- path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/command",
domid);
- xs_write(ctx->xsh, XBT_NULL, path, "pci-ins", strlen("pci-ins"));
- rc = libxl__wait_for_device_model(gc, domid, NULL, NULL,
- pci_ins_check, state);
- path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/parameter",
domid);
- vdevfn = libxl__xs_read(gc, XBT_NULL, path);
- path = libxl__sprintf(gc, "/local/domain/0/device-model/%d/state",
domid);
- if ( rc < 0 )
- LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "qemu refused to add device:
%s", vdevfn);
- else if ( sscanf(vdevfn, "0x%x", &pcidev->vdevfn) != 1 )
- rc = -1;
- xs_write(ctx->xsh, XBT_NULL, path, state, strlen(state));
+ switch (libxl__device_model_version_running(gc, domid)) {
+ case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL:
+ rc = qemu_pci_add_xenstore(gc, domid, pcidev);
+ break;
+ case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
+ rc = libxl__qmp_pci_add(gc, domid, pcidev);
+ break;
+ default:
+ return ERROR_INVAL;
+ }
if ( rc )
return ERROR_FAIL;
break;
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