[PATCH 1/3] xen/arm: call vpci_add_handlers on x86

[Bertrand Marquis <bertrand.marquis@xxxxxxx>]

Xen might not be able to discover at boot time all devices or some devices
might appear after specific actions from dom0.
In this case dom0 can use the PHYSDEVOP_pci_device_add to signal some
PCI devices to Xen.
As those devices where not known from Xen before, the vpci handlers must
be properly installed during pci_device_add for x86 PVH Dom0, in the
same way as what is done currently on arm (where Xen does not detect PCI
devices but relies on Dom0 to declare them all the time).

So this patch is removing the ifdef protecting the call to
vpci_add_handlers and the comment which was arm specific.

Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 xen/drivers/passthrough/pci.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/xen/drivers/passthrough/pci.c b/xen/drivers/passthrough/pci.c
index 35e0190796..d7e09448d1 100644
--- a/xen/drivers/passthrough/pci.c
+++ b/xen/drivers/passthrough/pci.c
@@ -756,11 +756,6 @@ int pci_add_device(u16 seg, u8 bus, u8 devfn,
     if ( !pdev->domain )
     {
         pdev->domain = hardware_domain;
-#ifdef CONFIG_ARM
-        /*
-         * On ARM PCI devices discovery will be done by Dom0. Add vpci handler
-         * when Dom0 inform XEN to add the PCI devices in XEN.
-         */
         ret = vpci_add_handlers(pdev);
         if ( ret )
         {
@@ -768,7 +763,6 @@ int pci_add_device(u16 seg, u8 bus, u8 devfn,
             pdev->domain = NULL;
             goto out;
         }
-#endif
         ret = iommu_add_device(pdev);
         if ( ret )
         {
-- 
2.25.1