[Xen-devel] [XEN][RFC PATCH V2 16/17] xl: Fix PCI library

[Julien Grall <julien.grall@xxxxxxxxxx>]

Quickly fix for PCI library. For the moment each hotplug PCI are add to
QEMU 0. We need to find a best way to specify which qemu handle the PCI.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 tools/libxl/libxl_pci.c |   19 +++++++++++--------
 1 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/tools/libxl/libxl_pci.c b/tools/libxl/libxl_pci.c
index 48986f3..fe02ccd 100644
--- a/tools/libxl/libxl_pci.c
+++ b/tools/libxl/libxl_pci.c
@@ -834,13 +834,12 @@ static int qemu_pci_add_xenstore(libxl__gc *gc, uint32_t 
domid,
     }
 
     libxl__qemu_traditional_cmd(gc, domid, "pci-ins");
-    rc = libxl__wait_for_device_model(gc, domid, NULL, NULL,
+    rc = libxl__wait_for_device_model(gc, domid, 0, 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);
+    path = libxl__sprintf(gc, "/local/domain/0/dms/%d/state", domid);
     if ( rc < 0 )
         LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
                    "qemu refused to add device: %s", vdevfn);
@@ -858,11 +857,13 @@ static int do_pci_add(libxl__gc *gc, uint32_t domid, 
libxl_device_pci *pcidev, i
 {
     libxl_ctx *ctx = libxl__gc_owner(gc);
     int rc, hvm = 0;
+    /* FIXME: handle multiple device model */
+    libxl_dmid dmid = 0;
 
     switch (libxl__domain_type(gc, domid)) {
     case LIBXL_DOMAIN_TYPE_HVM:
         hvm = 1;
-        if (libxl__wait_for_device_model(gc, domid, "running",
+        if (libxl__wait_for_device_model(gc, domid, dmid, "running",
                                          NULL, NULL, NULL) < 0) {
             return ERROR_FAIL;
         }
@@ -871,7 +872,7 @@ static int do_pci_add(libxl__gc *gc, uint32_t domid, 
libxl_device_pci *pcidev, i
                 rc = qemu_pci_add_xenstore(gc, domid, pcidev);
                 break;
             case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
-                rc = libxl__qmp_pci_add(gc, domid, pcidev);
+                rc = libxl__qmp_pci_add(gc, domid, dmid, pcidev);
                 break;
             default:
                 return ERROR_INVAL;
@@ -1136,7 +1137,7 @@ static int qemu_pci_remove_xenstore(libxl__gc *gc, 
uint32_t domid,
      * device-model for function 0 */
     if ( !force && (pcidev->vdevfn & 0x7) == 0 ) {
         libxl__qemu_traditional_cmd(gc, domid, "pci-rem");
-        if (libxl__wait_for_device_model(gc, domid, "pci-removed",
+        if (libxl__wait_for_device_model(gc, domid, 0, "pci-removed",
                                          NULL, NULL, NULL) < 0) {
             LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Device Model didn't respond in 
time");
             /* This depends on guest operating system acknowledging the
@@ -1162,6 +1163,8 @@ static int do_pci_remove(libxl__gc *gc, uint32_t domid,
     libxl_device_pci *assigned;
     int hvm = 0, rc, num;
     int stubdomid = 0;
+    /* FIXME: Handle multiple device model */
+    libxl_dmid dmid = 0;
 
     assigned = libxl_device_pci_list(ctx, domid, &num);
     if ( assigned == NULL )
@@ -1178,7 +1181,7 @@ static int do_pci_remove(libxl__gc *gc, uint32_t domid,
     switch (libxl__domain_type(gc, domid)) {
     case LIBXL_DOMAIN_TYPE_HVM:
         hvm = 1;
-        if (libxl__wait_for_device_model(gc, domid, "running",
+        if (libxl__wait_for_device_model(gc, domid, dmid, "running",
                                          NULL, NULL, NULL) < 0)
             goto out_fail;
 
@@ -1187,7 +1190,7 @@ static int do_pci_remove(libxl__gc *gc, uint32_t domid,
             rc = qemu_pci_remove_xenstore(gc, domid, pcidev, force);
             break;
         case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
-            rc = libxl__qmp_pci_del(gc, domid, pcidev);
+            rc = libxl__qmp_pci_del(gc, domid, dmid, pcidev);
             break;
         default:
             rc = ERROR_INVAL;
-- 
Julien Grall


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