Messages in this thread |  | | Date | Mon, 4 Oct 2021 10:58:28 +0200 | | Subject | Re: [PATCH v20 00/17] KVM RISC-V Support | | From | Paolo Bonzini <> |
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On 27/09/21 13:39, Anup Patel wrote: > This series adds initial KVM RISC-V support. Currently, we are able to boot > Linux on RV64/RV32 Guest with multiple VCPUs. > > Key aspects of KVM RISC-V added by this series are: > 1. No RISC-V specific KVM IOCTL > 2. Loadable KVM RISC-V module supported > 3. Minimal possible KVM world-switch which touches only GPRs and few CSRs > 4. Both RV64 and RV32 host supported > 5. Full Guest/VM switch is done via vcpu_get/vcpu_put infrastructure > 6. KVM ONE_REG interface for VCPU register access from user-space > 7. PLIC emulation is done in user-space > 8. Timer and IPI emuation is done in-kernel > 9. Both Sv39x4 and Sv48x4 supported for RV64 host > 10. MMU notifiers supported > 11. Generic dirtylog supported > 12. FP lazy save/restore supported > 13. SBI v0.1 emulation for KVM Guest available > 14. Forward unhandled SBI calls to KVM userspace > 15. Hugepage support for Guest/VM > 16. IOEVENTFD support for Vhost > > Here's a brief TODO list which we will work upon after this series: > 1. KVM unit test support > 2. KVM selftest support > 3. SBI v0.3 emulation in-kernel > 4. In-kernel PMU virtualization > 5. In-kernel AIA irqchip support > 6. Nested virtualizaiton > 7. ..... and more .....
Looks good, I prepared a tag "for-riscv" at https://git.kernel.org/pub/scm/virt/kvm/kvm.git. Palmer can pull it and you can use it to send me a pull request.
I look forward to the test support. :) Would be nice to have selftest support already in 5.16, since there are a few arch-independent selftests that cover the hairy parts of the MMU.
Paolo
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