[xen staging] CI: wait for the network interface in PCI passthrough tests

[patchbot@xxxxxxx]

commit 6e3fe711fbf3a659160ab7ef2c293dffd62bbda4
Author:     Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Mon Apr 7 14:31:07 2025 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Mon Apr 7 19:17:38 2025 +0100

    CI: wait for the network interface in PCI passthrough tests
    
    The network driver initializes asynchronously, and it may not be ready
    yet by the time the startup script is called. This is especially the
    case for USB network adapter (where the PCI device is the USB
    controller) in the upcoming runner.
    
    Don't bother about separate timeout - test timeout will cover this part
    too.
    
    Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 automation/scripts/qubes-x86-64.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/automation/scripts/qubes-x86-64.sh 
b/automation/scripts/qubes-x86-64.sh
index 7867724ebd..2b04d281d7 100755
--- a/automation/scripts/qubes-x86-64.sh
+++ b/automation/scripts/qubes-x86-64.sh
@@ -104,6 +104,7 @@ on_reboot = "destroy"
         domU_check="
 set -x -e
 interface=eth0
+while ! [ -e \"/sys/class/net/\$interface\" ]; do sleep 1; done
 ip link set \"\$interface\" up
 timeout 30s udhcpc -i \"\$interface\"
 pingip=\$(ip -o -4 r show default|cut -f 3 -d ' ')
--
generated by git-patchbot for /home/xen/git/xen.git#staging