[PATCH 0/8] Virtio-over-PCIe on non-MIC

Vincent Whitchurch
2019-01-16T16:33:41Z

The Virtio-over-PCIe framework living under drivers/misc/mic/vop implements a
generic framework to use virtio between two Linux systems, given shared memory
and a couple of interrupts. It does not actually require the Intel MIC
hardware, x86-64, or even PCIe for that matter. This patch series makes it
buildable on more systems and adds a loopback driver to test it without special
hardware.

Note that I don't have access to Intel MIC hardware so some testing of the
patchset (especially the patch "vop: Use consistent DMA") on that platform
would be appreciated, to ensure that the series does not break anything there.

Vincent Whitchurch (8):
vop: Use %z for size_t
vop: Cast pointers to uintptr_t
vop: Add definition of readq/writeq if missing
vop: Allow building on more systems
vop: vringh: Do not crash if no DMA channel
vop: Fix handling of >32 feature bits
vop: Use consistent DMA
vop: Add loopback

drivers/misc/mic/Kconfig | 14 +-
drivers/misc/mic/bus/vop_bus.h | 2 +
drivers/misc/mic/host/mic_boot.c | 46 ++++
drivers/misc/mic/vop/Makefile | 2 +
drivers/misc/mic/vop/vop_loopback.c | 390 ++++++++++++++++++++++++++++
drivers/misc/mic/vop/vop_main.c | 36 +--
drivers/misc/mic/vop/vop_vringh.c | 151 ++++++-----
7 files changed, 549 insertions(+), 92 deletions(-)
create mode 100644 drivers/misc/mic/vop/vop_loopback.c

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2.20.0