[PATCH v2 0/6] RISC-V: KVM: Allow zicbop/bfloat16 exts for guests

[Anup Patel]

On Fri, Aug 8, 2025 at 4:00 PM <zhouquan at iscas.ac.cn> wrote:
>
> From: Quan Zhou <zhouquan at iscas.ac.cn>
>
> Advertise zicbop/bfloat16 extensions to KVM guest when underlying
> host supports it, and add them to get-reg-list test.
>
> ---
> Change since v1:
> - update zicbom/zicboz/zicbop block size registers to depend on the host isa.
> - update the reg list filtering in copy_config_reg_indices() to use the host isa.
> - add reg list filtering for zicbop.
> v1: https://lore.kernel.org/all/cover.1750164414.git.zhouquan@iscas.ac.cn/
>
> Quan Zhou (6):
>   RISC-V: KVM: Change zicbom/zicboz block size to depend on the host isa
>   RISC-V: KVM: Provide UAPI for Zicbop block size
>   RISC-V: KVM: Allow Zicbop extension for Guest/VM
>   RISC-V: KVM: Allow bfloat16 extension for Guest/VM
>   KVM: riscv: selftests: Add Zicbop extension to get-reg-list test
>   KVM: riscv: selftests: Add bfloat16 extension to get-reg-list test

Queued this series for Linux-6.18

Thanks,
Anup

>
>  arch/riscv/include/uapi/asm/kvm.h             |  5 +++
>  arch/riscv/kvm/vcpu_onereg.c                  | 34 +++++++++++++++----
>  .../selftests/kvm/riscv/get-reg-list.c        | 25 ++++++++++++++
>  3 files changed, 58 insertions(+), 6 deletions(-)
>
> --
> 2.34.1
>