On Wed, Nov 06, 2024 at 10:34:00AM -0300, Daniel Henrique Barboza wrote: > Hi, > > Now that we have merged the base IOMMU support we can re-introduce > the riscv-iommu-sys platform device that was taken away from the initial > posting. > > Aside from adding support for the device in the 'virt' machine we're > also adding MSI support for it, something that we weren't doing before. > The Linux driver is then free to choose either MSI or WSI to use the > device.
The driver (still only in linux-next) only knows how to use WSI, but with a series I just posted[1] MSI is also possible. [1] https://lore.kernel.org/all/20241106175102.219923-4-ajo...@ventanamicro.com/ Thanks, drew > > Patches based on master. > > Daniel Henrique Barboza (5): > hw/riscv/riscv-iommu.c: add riscv_iommu_instance_init() > hw/riscv/riscv-iommu: parametrize CAP.IGS > hw/riscv/virt.c, riscv-iommu-sys.c: add MSIx support > hw/riscv/riscv-iommu: implement reset protocol > docs/specs: add riscv-iommu-sys information > > Sunil V L (1): > hw/riscv/virt: Add IOMMU as platform device if the option is set > > Tomasz Jeznach (1): > hw/riscv: add riscv-iommu-sys platform device > > docs/specs/riscv-iommu.rst | 30 ++++- > docs/system/riscv/virt.rst | 10 ++ > hw/riscv/meson.build | 2 +- > hw/riscv/riscv-iommu-bits.h | 6 + > hw/riscv/riscv-iommu-pci.c | 21 +++ > hw/riscv/riscv-iommu-sys.c | 256 ++++++++++++++++++++++++++++++++++++ > hw/riscv/riscv-iommu.c | 114 +++++++++++----- > hw/riscv/riscv-iommu.h | 5 + > hw/riscv/trace-events | 4 + > hw/riscv/virt.c | 108 ++++++++++++++- > include/hw/riscv/iommu.h | 10 +- > include/hw/riscv/virt.h | 6 +- > 12 files changed, 530 insertions(+), 42 deletions(-) > create mode 100644 hw/riscv/riscv-iommu-sys.c > > -- > 2.45.2 > >
