On Wed, Sep 04, 2024 at 05:02:52AM -0500, Santosh Shukla wrote: > Series adds following feature support for emulated amd vIOMMU > 1) Pass Through(PT) mode > 2) Interrupt Remapping(IR) mode > > 1) PT mode > Introducing the shared 'nodma' memory region that can be aliased > by all the devices in the PT mode. Shared memory with aliasing > approach will help run VM faster when lot of devices attached to > VM. > > 2) IR mode > Shared IR memory region with aliasing approach proposed for the > reason mentioned in 1). Also add support to invalidate Interrupt > remaping table(IRT). > > Series based on f259e4cb8a8b4ef5463326fc214a7d8d7703d5de.
Fails build on non-kvm: https://gitlab.com/mstredhat/qemu/-/jobs/7791357916 /usr/lib/gcc-cross/i686-linux-gnu/10/../../../../i686-linux-gnu/bin/ld: libqemu-x86_64-softmmu.a.p/hw_i386_amd_iommu.c.o: in function `amdvi_sysbus_realize': /builds/mstredhat/qemu/build/../hw/i386/amd_iommu.c:1660: undefined reference to `kvm_enable_x2apic' collect2: error: ld returned 1 exit status > Testing: > 1. nvme/fio testing for VM with > 255 vCPU with xtsup=on and x2apic > enabled > 2. Windows Server 2022 VM testing for > 255 vCPU. > > Suravee Suthikulpanit (5): > amd_iommu: Rename variable mmio to mr_mmio > amd_iommu: Add support for pass though mode > amd_iommu: Use shared memory region for Interrupt Remapping > amd_iommu: Send notification when invaldate interrupt entry cache > amd_iommu: Check APIC ID > 255 for XTSup > > hw/i386/acpi-build.c | 4 +- > hw/i386/amd_iommu.c | 98 +++++++++++++++++++++++++++++++++++--------- > hw/i386/amd_iommu.h | 5 ++- > 3 files changed, 85 insertions(+), 22 deletions(-) > > -- > 2.43.5
