Hi Shameer,
On 12/22/25 14:53, Shameer Kolothum wrote:
Hi,
Linux now provides a VFIO dmabuf exporter to expose PCI BAR memory for P2P
use cases. This adds support for vfio devices to create a dmabuf for
each mapped BAR region.
Requires linux-headers update to 6.19-rc1(patch #1). That update
introduces a virtio-net build issue, which is addressed by patch #2.
The dmabuf support was sanity tested on an NVIDIA grace paltform.
Please take a look and let me know.
I gave it a try with a pair of GPUs on x86_64. LGTM.
It should be ready to merge after the linux-headers update
is fixed.
Thanks,
C.
Thanks,
Shameer
Nicolin Chen (1):
hw/vfio/region: Create dmabuf for PCI BAR per region
Shameer Kolothum (2):
linux-headers: Update to Linux v6.19-rc1
hw/net/virtio-net: Adapt hash handling to updated UAPI
hw/net/virtio-net.c | 11 +-
hw/vfio/region.c | 57 ++-
hw/vfio/trace-events | 1 +
include/standard-headers/drm/drm_fourcc.h | 25 +-
include/standard-headers/linux/ethtool.h | 5 +
.../linux/input-event-codes.h | 14 +-
include/standard-headers/linux/pci_regs.h | 89 ++++
include/standard-headers/linux/virtio_net.h | 3 +-
include/standard-headers/linux/virtio_pci.h | 2 +-
linux-headers/asm-arm64/kvm.h | 2 +-
linux-headers/asm-arm64/unistd_64.h | 1 +
linux-headers/asm-generic/unistd.h | 4 +-
linux-headers/asm-loongarch/kvm.h | 1 +
linux-headers/asm-loongarch/unistd.h | 6 +
linux-headers/asm-loongarch/unistd_64.h | 1 +
linux-headers/asm-mips/unistd_n32.h | 1 +
linux-headers/asm-mips/unistd_n64.h | 1 +
linux-headers/asm-mips/unistd_o32.h | 1 +
linux-headers/asm-powerpc/unistd_32.h | 1 +
linux-headers/asm-powerpc/unistd_64.h | 1 +
linux-headers/asm-riscv/kvm.h | 3 +
linux-headers/asm-riscv/unistd_32.h | 1 +
linux-headers/asm-riscv/unistd_64.h | 1 +
linux-headers/asm-s390/bitsperlong.h | 4 -
linux-headers/asm-s390/unistd.h | 4 -
linux-headers/asm-s390/unistd_32.h | 446 ------------------
linux-headers/asm-s390/unistd_64.h | 9 +-
linux-headers/asm-x86/kvm.h | 1 +
linux-headers/asm-x86/unistd_32.h | 1 +
linux-headers/asm-x86/unistd_64.h | 1 +
linux-headers/asm-x86/unistd_x32.h | 1 +
linux-headers/linux/iommufd.h | 10 +
linux-headers/linux/kvm.h | 11 +
linux-headers/linux/mshv.h | 116 ++++-
linux-headers/linux/psp-sev.h | 66 ++-
linux-headers/linux/vfio.h | 28 ++
36 files changed, 427 insertions(+), 503 deletions(-)
delete mode 100644 linux-headers/asm-s390/unistd_32.h
