On Fri, May 24, 2024 at 10:50:42AM GMT, Shaoqing Qin wrote:
> Add parsing for Zacas ISA extension which was ratified recently in the
> riscv-zacas manual.
> The tests are based on the 6.9 version of the kernel
>
> Signed-off-by: Shaoqing Qin <qinshaoqing@xxxxxxxxxx>
> ---
> Changed from v1:
> 1. modify ZACAS enum number.
> 2. modify the code location,just for formatting.
> ---
> riscv/fdt.c | 1 +
> riscv/include/asm/kvm.h | 1 +
> riscv/include/kvm/kvm-config-arch.h | 3 +++
> 3 files changed, 5 insertions(+)
>
> diff --git a/riscv/fdt.c b/riscv/fdt.c
> index cc8070d..6dfc25b 100644
> --- a/riscv/fdt.c
> +++ b/riscv/fdt.c
> @@ -22,6 +22,7 @@ struct isa_ext_info isa_info_arr[] = {
> {"svinval", KVM_RISCV_ISA_EXT_SVINVAL},
> {"svnapot", KVM_RISCV_ISA_EXT_SVNAPOT},
> {"svpbmt", KVM_RISCV_ISA_EXT_SVPBMT},
> + {"zacas", KVM_RISCV_ISA_EXT_ZACAS},
> {"zba", KVM_RISCV_ISA_EXT_ZBA},
> {"zbb", KVM_RISCV_ISA_EXT_ZBB},
> {"zbc", KVM_RISCV_ISA_EXT_ZBC},
> diff --git a/riscv/include/asm/kvm.h b/riscv/include/asm/kvm.h
> index 7499e88..6b2cbe7 100644
> --- a/riscv/include/asm/kvm.h
> +++ b/riscv/include/asm/kvm.h
> @@ -135,6 +135,7 @@ enum KVM_RISCV_ISA_EXT_ID {
> KVM_RISCV_ISA_EXT_ZBS,
> KVM_RISCV_ISA_EXT_ZICNTR,
> KVM_RISCV_ISA_EXT_ZICSR,
> + KVM_RISCV_ISA_EXT_ZACAS,
This should be updated with util/update_headers.sh
> KVM_RISCV_ISA_EXT_ZIFENCEI,
> KVM_RISCV_ISA_EXT_ZIHPM,
> KVM_RISCV_ISA_EXT_SMSTATEEN,
> diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
> index e562d71..e5343a6 100644
> --- a/riscv/include/kvm/kvm-config-arch.h
> +++ b/riscv/include/kvm/kvm-config-arch.h
> @@ -43,6 +43,9 @@ struct kvm_config_arch {
> OPT_BOOLEAN('\0', "disable-svpbmt", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_SVPBMT], \
> "Disable Svpbmt Extension"), \
> + OPT_BOOLEAN('\0', "disable-zacas", \
> + &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZACAS], \
> + "Disable Zacas Extension"), \
> OPT_BOOLEAN('\0', "disable-zba", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBA], \
> "Disable Zba Extension"), \
> --
> 2.43.0
But, we don't need this patch since Zacas was posted along with Ztso here
https://lore.kernel.org/all/20240514054928.854419-1-apatel@xxxxxxxxxxxxxxxx/
Thanks,
drew
