[PATCH 0/6] Add SBI v0.2 support for KVM
Atish Patra
Atish.Patra at wdc.com
Mon Nov 30 20:06:05 EST 2020
On Fri, 2020-11-27 at 13:44 +0530, Anup Patel wrote:
> On Mon, Aug 3, 2020 at 11:29 PM Atish Patra <atish.patra at 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.
>
Yeah. I will update the series as per new SRST extension.
> Also, the PATCH1 can be merged separately so I would suggest
> you to send this patch separately.
>
Sure will do that.
> Regards,
> Anup
--
Regards,
Atish
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