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    SubjectRe: [PATCH 0/6] Add SBI v0.2 support for KVM
    On Mon, Aug 3, 2020 at 11:29 PM Atish Patra <atish.patra@wdc.com> wrote:
    >
    > The Supervisor Binary Interface(SBI) specification[1] now defines a
    > base extension that provides extendability to add future extensions
    > while maintaining backward compatibility with previous versions.
    > The new version is defined as 0.2 and older version is marked as 0.1.
    >
    > This series adds following features to RISC-V Linux KVM.
    > 1. Adds support for SBI v0.2 in KVM
    > 2. SBI Hart state management extension (HSM) in KVM
    > 3. Ordered booting of guest vcpus in guest Linux
    >
    > This series depends on the base kvm support series[2].
    >
    > Guest kernel needs to also support SBI v0.2 and HSM extension in Kernel
    > to boot multiple vcpus. Linux kernel supports both starting v5.7.
    > In absense of that, guest can only boot 1vcpu.
    >
    > [1] https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc
    > [2] http://lists.infradead.org/pipermail/linux-riscv/2020-July/001028.html
    >
    > Atish Patra (6):
    > RISC-V: Add a non-void return for sbi v02 functions
    > RISC-V: Mark the existing SBI v0.1 implementation as legacy
    > RISC-V: Reorganize SBI code by moving legacy SBI to its own file
    > RISC-V: Add SBI v0.2 base extension
    > RISC-V: Add v0.1 replacement SBI extensions defined in v02
    > RISC-V: Add SBI HSM extension in KVM
    >
    > arch/riscv/include/asm/kvm_vcpu_sbi.h | 32 +++++
    > arch/riscv/include/asm/sbi.h | 17 ++-
    > arch/riscv/kernel/sbi.c | 32 ++---
    > arch/riscv/kvm/Makefile | 4 +-
    > arch/riscv/kvm/vcpu.c | 19 +++
    > arch/riscv/kvm/vcpu_sbi.c | 194 ++++++++++++--------------
    > arch/riscv/kvm/vcpu_sbi_base.c | 73 ++++++++++
    > arch/riscv/kvm/vcpu_sbi_hsm.c | 109 +++++++++++++++
    > arch/riscv/kvm/vcpu_sbi_legacy.c | 129 +++++++++++++++++
    > arch/riscv/kvm/vcpu_sbi_replace.c | 136 ++++++++++++++++++
    > 10 files changed, 619 insertions(+), 126 deletions(-)
    > create mode 100644 arch/riscv/include/asm/kvm_vcpu_sbi.h
    > create mode 100644 arch/riscv/kvm/vcpu_sbi_base.c
    > create mode 100644 arch/riscv/kvm/vcpu_sbi_hsm.c
    > create mode 100644 arch/riscv/kvm/vcpu_sbi_legacy.c
    > create mode 100644 arch/riscv/kvm/vcpu_sbi_replace.c
    >
    > --
    > 2.24.0
    >

    Please implement the SBI SRST extension in your series.

    Also, the PATCH1 can be merged separately so I would suggest
    you to send this patch separately.

    Regards,
    Anup

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