On Thu, Jun 15, 2023 at 1:04 PM Anup Patel <apatel@xxxxxxxxxxxxxxxx> wrote: > > This series adds in-kernel AIA irqchip to KVM RISC-V which trap-n-emulate > IMSIC and APLIC MSI-mode for Guest. The APLIC MSI-mode trap-n-emulate is > optional so KVM user space can emulate APLIC entirely in user space. > > The use of IMSIC HW guest files to accelerate IMSIC virtualization will be > done as separate series since this depends on AIA irqchip drivers to be > upstreamed. This series has no dependency on the AIA irqchip drivers. > > There is also a KVM AIA irq-bypass (or device MSI virtualization) series > under development which depends on this series and upcoming IOMMU driver > series. > > These patches (or this series) can also be found in the > riscv_kvm_aia_irqchip_v3 branch at: https://github.com/avpatel/linux.git > > Changes since v2: > - Added KVM_CAP_IRQCHIP in PATCH5 > - Fix check for KVM_DEV_RISCV_AIA_CONFIG_IDS write in PATCH6 > - Fix APLIC_IRQ_STATE_ENPEND usage in PATCH7 > > Changes since v1: > - Rebased on Linux-6.4-rc6 > - Addressed Atish's comment in PATCH6 > - Added comments in arch/riscv/include/uapi/asm/kvm.h about APLIC and > IMSIC device attribute type > > Anup Patel (10): > RISC-V: KVM: Implement guest external interrupt line management > RISC-V: KVM: Add IMSIC related defines > RISC-V: KVM: Add APLIC related defines > RISC-V: KVM: Set kvm_riscv_aia_nr_hgei to zero > RISC-V: KVM: Skeletal in-kernel AIA irqchip support > RISC-V: KVM: Implement device interface for AIA irqchip > RISC-V: KVM: Add in-kernel emulation of AIA APLIC > RISC-V: KVM: Expose APLIC registers as attributes of AIA irqchip > RISC-V: KVM: Add in-kernel virtualization of AIA IMSIC > RISC-V: KVM: Expose IMSIC registers as attributes of AIA irqchip Queued this series for 6.5 Regards, Anup > > arch/riscv/include/asm/kvm_aia.h | 107 ++- > arch/riscv/include/asm/kvm_aia_aplic.h | 58 ++ > arch/riscv/include/asm/kvm_aia_imsic.h | 38 + > arch/riscv/include/asm/kvm_host.h | 4 + > arch/riscv/include/uapi/asm/kvm.h | 72 ++ > arch/riscv/kvm/Kconfig | 4 + > arch/riscv/kvm/Makefile | 3 + > arch/riscv/kvm/aia.c | 274 +++++- > arch/riscv/kvm/aia_aplic.c | 619 ++++++++++++++ > arch/riscv/kvm/aia_device.c | 673 +++++++++++++++ > arch/riscv/kvm/aia_imsic.c | 1083 ++++++++++++++++++++++++ > arch/riscv/kvm/main.c | 3 +- > arch/riscv/kvm/vcpu.c | 2 + > arch/riscv/kvm/vm.c | 118 +++ > include/uapi/linux/kvm.h | 2 + > 15 files changed, 3027 insertions(+), 33 deletions(-) > create mode 100644 arch/riscv/include/asm/kvm_aia_aplic.h > create mode 100644 arch/riscv/include/asm/kvm_aia_imsic.h > create mode 100644 arch/riscv/kvm/aia_aplic.c > create mode 100644 arch/riscv/kvm/aia_device.c > create mode 100644 arch/riscv/kvm/aia_imsic.c > > -- > 2.34.1 > > > -- > kvm-riscv mailing list > kvm-riscv@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/kvm-riscv
