Hi Jason, On Mon, 4 Jan 2021 at 12:28, Jason Wang <jasowang@xxxxxxxxxx> wrote: > > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> > --- > drivers/virtio/Kconfig | 10 +- > drivers/virtio/Makefile | 1 + > drivers/virtio/virtio_pci_common.h | 27 +- > drivers/virtio/virtio_pci_modern.c | 617 ------------------------- > drivers/virtio/virtio_pci_modern_dev.c | 599 ++++++++++++++++++++++++ > include/linux/virtio_pci_modern.h | 111 +++++ > 6 files changed, 721 insertions(+), 644 deletions(-) > create mode 100644 drivers/virtio/virtio_pci_modern_dev.c > create mode 100644 include/linux/virtio_pci_modern.h > > diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig > index 7b41130d3f35..6b9b81f4b8c2 100644 > --- a/drivers/virtio/Kconfig > +++ b/drivers/virtio/Kconfig > @@ -12,6 +12,14 @@ config ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS > This option is selected if the architecture may need to enforce > VIRTIO_F_ACCESS_PLATFORM > > +config VIRTIO_PCI_MODERN > + tristate "Modern Virtio PCI Device" > + depends on PCI > + help > + Modern PCI device implementation. This module implements the > + basic probe and control for devices which are based on modern > + PCI device with possible vendor specific extensions. > + > menuconfig VIRTIO_MENU > bool "Virtio drivers" > default y > @@ -20,7 +28,7 @@ if VIRTIO_MENU > > config VIRTIO_PCI > tristate "PCI driver for virtio devices" > - depends on PCI > + depends on VIRTIO_PCI_MODERN While booting Linux next tag 20210208 kernel on qemu_arm64 and qemu_arm mount rootfs failed. The root cause seems to be due to missing configs CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_PCI_LEGACY=y Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> Then I have to force to enable this MODERN config CONFIG_VIRTIO_PCI_MODERN=y and which enabled CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_PCI_LEGACY=y and the qemu_arm64 and qemu_arm boot pass. New build link, https://builds.tuxbuild.com/1oEse4EFsoQr1FkKBfiLmhMCe7j/ -- Linaro LKFT https://lkft.linaro.org
