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Marek Marczykowski-Górecki
3822b16a17
Add simple PCI passthrough test to both PV and HVM domU. It passes through a network adapter (the only one in the system), gets an IP via DHCP (first basic test) and then ping the gateway (second basic test). Finally, if device is supposed to use MSI or MSI-X (as set in the PCIDEV_INTR test variable), check if it's in use via /proc/interrupts. On the current runner, the device in question is this: 03:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller I225-V [8086:15f3] (rev 03) Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:7d25] Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at 50400000 (32-bit, non-prefetchable) [size=1M] Memory at 50500000 (32-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [70] MSI-X: Enable+ Count=5 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number ... Capabilities: [1c0] Latency Tolerance Reporting Capabilities: [1f0] Precision Time Measurement Capabilities: [1e0] L1 PM Substates Kernel driver in use: igc Kernel modules: igc With the current Xen version, it uses MSI-X under PV and MSI under HVM. This patch moves domU config to a variable, to make it configurable on per-test basis. Add also a few comments for visual separation of tests. Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>