As op-build images haven't been updated from long time (and may not get
updated in future), use buildroot images provided by cedric [1].

Use existing nvme device being used in the test to mount the initrd.

Also replace the check for "zImage loaded message" to skiboot's message
when it starts the kernel: "Starting kernel at", since we are no longer
using zImage from op-build

This is required for newer processor tests such as Power11, as the
op-build kernel image is old and doesn't support Power11.

Power11 test has been added in a later patch.

[1]: https://github.com/legoater/qemu-ppc-boot/tree/main/buildroot/qemu_ppc64le_powernv8-2025.02

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Aditya Gupta <adityag@linux.ibm.com>
---
 tests/functional/ppc64/test_powernv.py | 30 ++++++++++++++------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/tests/functional/ppc64/test_powernv.py b/tests/functional/ppc64/test_powernv.py
index 685e2178ed78..2b4db1cf99b4 100755
--- a/tests/functional/ppc64/test_powernv.py
+++ b/tests/functional/ppc64/test_powernv.py
@@ -18,9 +18,14 @@ class powernvMachine(LinuxKernelTest):
     good_message = 'VFS: Cannot open root device'
 
     ASSET_KERNEL = Asset(
-        ('https://archives.fedoraproject.org/pub/archive/fedora-secondary/'
-         'releases/29/Everything/ppc64le/os/ppc/ppc64/vmlinuz'),
-        '383c2f5c23bc0d9d32680c3924d3fd7ee25cc5ef97091ac1aa5e1d853422fc5f')
+        ('https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main/'
+         'buildroot/qemu_ppc64le_powernv8-2025.02/vmlinux'),
+        '6fd29aff9ad4362511ea5d0acbb510667c7031928e97d64ec15bbc5daf4b8151')
+
+    ASSET_INITRD = Asset(
+        ('https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main/'
+         'buildroot/qemu_ppc64le_powernv8-2025.02/rootfs.ext2'),
+        'aee2192b692077c4bde31cb56ce474424b358f17cec323d5c94af3970c9aada2')
 
     def do_test_linux_boot(self, command_line = KERNEL_COMMON_COMMAND_LINE):
         self.require_accelerator("tcg")
@@ -78,27 +83,24 @@ def test_linux_big_boot(self):
         wait_for_console_pattern(self, console_pattern, self.panic_message)
         wait_for_console_pattern(self, self.good_message, self.panic_message)
 
-
-    ASSET_EPAPR_KERNEL = Asset(
-        ('https://github.com/open-power/op-build/releases/download/v2.7/'
-         'zImage.epapr'),
-        '0ab237df661727e5392cee97460e8674057a883c5f74381a128fa772588d45cd')
-
     def do_test_ppc64_powernv(self, proc):
         self.require_accelerator("tcg")
-        kernel_path = self.ASSET_EPAPR_KERNEL.fetch()
+        kernel_path = self.ASSET_KERNEL.fetch()
+        initrd_path = self.ASSET_INITRD.fetch()
         self.vm.set_console()
         self.vm.add_args('-kernel', kernel_path,
-                         '-append', 'console=tty0 console=hvc0',
+                         '-drive',
+                         f'file={initrd_path},format=raw,if=none,id=drive0,readonly=on',
+                         '-append', 'root=/dev/nvme0n1 console=tty0 console=hvc0',
                          '-device', 'pcie-pci-bridge,id=bridge1,bus=pcie.1,addr=0x0',
-                         '-device', 'nvme,bus=pcie.2,addr=0x0,serial=1234',
+                         '-device', 'nvme,drive=drive0,bus=pcie.2,addr=0x0,serial=1234',
                          '-device', 'e1000e,bus=bridge1,addr=0x3',
                          '-device', 'nec-usb-xhci,bus=bridge1,addr=0x2')
         self.vm.launch()
 
         self.wait_for_console_pattern("CPU: " + proc + " generation processor")
-        self.wait_for_console_pattern("zImage starting: loaded")
-        self.wait_for_console_pattern("Run /init as init process")
+        self.wait_for_console_pattern("INIT: Starting kernel at ")
+        self.wait_for_console_pattern("Run /sbin/init as init process")
         # Device detection output driven by udev probing is sometimes cut off
         # from console output, suspect S14silence-console init script.
 
-- 
2.50.1