KVM RISC-V ONE_REG ISA extension improvements [LWN.net]

From:		Anup Patel <apatel-AT-ventanamicro.com>
To:		Paolo Bonzini <pbonzini-AT-redhat.com>, Atish Patra <atishp-AT-atishpatra.org>
Subject:		[PATCH 0/7] KVM RISC-V ONE_REG ISA extension improvements
Date:		Wed, 12 Jul 2023 21:40:40 +0530
Message-ID:		<20230712161047.1764756-1-apatel@ventanamicro.com>
Cc:		Palmer Dabbelt <palmer-AT-dabbelt.com>, Paul Walmsley <paul.walmsley-AT-sifive.com>, Andrew Jones <ajones-AT-ventanamicro.com>, Heiko Stuebner <heiko-AT-sntech.de>, Samuel Ortiz <sameo-AT-rivosinc.com>, kvm-AT-vger.kernel.org, kvm-riscv-AT-lists.infradead.org, linux-riscv-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, Anup Patel <apatel-AT-ventanamicro.com>
Archive-link:		Article

This series improves the ISA extension ONE_REG interface in following ways:
1) Move ONE_REG related code to dedicated source file
2) Allow multiple ISA extensions to be enabled/disabled in one ioctl
3) Add more ISA extensions to the ONE_REG interface

The series has following dependencies:
1) PATCH6 depends on
https://lore.kernel.org/linux-riscv/20230712084134.164800...
2) PATCH7 depends on
https://lore.kernel.org/linux-riscv/20230711153743.197062...

The PATCH1 to PATCH5 of this series don't depend on any patches.

These patches can also be found in the riscv_kvm_onereg_imp_v1 branch at:
https://github.com/avpatel/linux.git

Anup Patel (7):
  RISC-V: KVM: Factor-out ONE_REG related code to its own source file
  RISC-V: KVM: Extend ONE_REG to enable/disable multiple ISA extensions
  RISC-V: KVM: Allow Zba and Zbs extensions for Guest/VM
  RISC-V: KVM: Allow Zicntr, Zicsr, Zifencei, and Zihpm for Guest/VM
  RISC-V: KVM: Sort ISA extensions alphabetically in ONE_REG interface
  RISC-V: KVM: Allow Zbc, Zbk* and Zk* extensions for Guest/VM
  RISC-V: KVM: Allow Zvb* and Zvk* extensions for Guest/VM

 arch/riscv/include/asm/kvm_host.h |   6 +
 arch/riscv/include/uapi/asm/kvm.h |  35 ++
 arch/riscv/kvm/Makefile           |   1 +
 arch/riscv/kvm/vcpu.c             | 529 +----------------------
 arch/riscv/kvm/vcpu_onereg.c      | 695 ++++++++++++++++++++++++++++++
 5 files changed, 738 insertions(+), 528 deletions(-)
 create mode 100644 arch/riscv/kvm/vcpu_onereg.c

-- 
2.34.1