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    SubjectRe: [PATCH 2/6] RISC-V: KVM: Change the SBI specification version to v2.0
    On Tue, Oct 10, 2023 at 10:34:59PM +0530, Anup Patel wrote:
    > We will be implementing SBI DBCN extension for KVM RISC-V so let
    > us change the KVM RISC-V SBI specification version to v2.0.
    >
    > Signed-off-by: Anup Patel <apatel@ventanamicro.com>
    > ---
    > arch/riscv/include/asm/kvm_vcpu_sbi.h | 2 +-
    > 1 file changed, 1 insertion(+), 1 deletion(-)
    >
    > diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h
    > index cdcf0ff07be7..8d6d4dce8a5e 100644
    > --- a/arch/riscv/include/asm/kvm_vcpu_sbi.h
    > +++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h
    > @@ -11,7 +11,7 @@
    >
    > #define KVM_SBI_IMPID 3
    >
    > -#define KVM_SBI_VERSION_MAJOR 1
    > +#define KVM_SBI_VERSION_MAJOR 2

    What does this number mean? Who checks it? Why do you have to keep
    incrementing it?

    thanks,

    greg k-h

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