[PATCH 0/7] KVM RISC-V ONE_REG ISA extension improvements

From: Anup Patel
Date: Wed Jul 12 2023 - 12:11:08 EST


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/20230712084134.1648008-1-sameo@xxxxxxxxxxxx/
2) PATCH7 depends on
https://lore.kernel.org/linux-riscv/20230711153743.1970625-1-heiko@xxxxxxxxx/

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

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2.34.1