>> diff --git a/drivers/vfio/pci/nvgrace-gpu/main.c >> b/drivers/vfio/pci/nvgrace-gpu/main.c new file mode 100644 >> index 000000000000..5a251a6a782e >> --- /dev/null >> +++ b/drivers/vfio/pci/nvgrace-gpu/main.c >> @@ -0,0 +1,888 @@ >> +// SPDX-License-Identifier: GPL-2.0-only >> +/* >> + * Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights >> reserved >> + */ >> + >> +#include <linux/vfio_pci_core.h> >> +#include <linux/sizes.h> >> + > > Let's keep the header inclusion in an alphabet order. > > With that addressed, > > Reviewed-by: Zhi Wang <zhi.wang.linux@xxxxxxxxx> Yes, will adjust that. Thanks! >> +/* >> + * The device memory usable to the workloads running in the VM is >> cached >> + * and showcased as a 64b device BAR (comprising of BAR4 and BAR5 >> region) >> + * to the VM and is represented as usemem. >> + * Moreover, the VM GPU device driver needs a non-cacheable region to >> + * support the MIG feature. This region is also exposed as a 64b BAR >> + * (comprising of BAR2 and BAR3 region) and represented as resmem. >> + */ >> +#define RESMEM_REGION_INDEX VFIO_PCI_BAR2_REGION_INDEX >> +#define USEMEM_REGION_INDEX VFIO_PCI_BAR4_REGION_INDEX
