[v2,0/6] Risc-V Kvm Smstateen

Message

Mayuresh Chitale July 21, 2023, 7:54 a.m. UTC

This series adds support to detect the Smstateen extension for both, the
host and the guest vcpu. It also adds senvcfg and sstateen0 to the ONE_REG
interface and the vcpu context save/restore.

Changes in v2:
- Add smstaeen description in riscv/extensions.yaml
- Avoid line wrap at 80 chars

Mayuresh Chitale (6):
  RISC-V: Detect Smstateen extension
  RISC-V: KVM: Add kvm_vcpu_config
  RISC-V: KVM: Enable Smstateen accesses
  RISCV: KVM: Add senvcfg context save/restore
  RISCV: KVM: Add sstateen0 context save/restore
  RISCV: KVM: Add sstateen0 to ONE_REG

 .../devicetree/bindings/riscv/extensions.yaml |  6 ++
 arch/riscv/include/asm/csr.h                  | 18 ++++
 arch/riscv/include/asm/hwcap.h                |  1 +
 arch/riscv/include/asm/kvm_host.h             | 18 ++++
 arch/riscv/include/uapi/asm/kvm.h             | 11 +++
 arch/riscv/kernel/cpu.c                       |  1 +
 arch/riscv/kernel/cpufeature.c                |  1 +
 arch/riscv/kvm/vcpu.c                         | 97 ++++++++++++++++---
 8 files changed, 140 insertions(+), 13 deletions(-)