[PATCH v3 0/7] Risc-V Kvm Smstateen

Mayuresh Chitale mchitale at ventanamicro.com
Mon Jul 24 07:20:26 PDT 2023


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 v3:
- Move DT bindings change to a separate patch

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

Mayuresh Chitale (7):
  RISC-V: Detect Smstateen extension
  dt-bindings: riscv: Add smstateen entry
  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                         | 111 ++++++++++++++++--
 8 files changed, 154 insertions(+), 13 deletions(-)

-- 
2.34.1




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