diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | docs/specs/riscv-iommu.rst | 6 | ||||
| -rw-r--r-- | target/riscv/kvm/kvm-cpu.c | 6 |
3 files changed, 4 insertions, 9 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index c1ccb0acd1..d54b5578f8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -319,6 +319,7 @@ L: qemu-riscv@nongnu.org S: Supported F: configs/targets/riscv* F: docs/system/target-riscv.rst +F: docs/specs/riscv-iommu.rst F: target/riscv/ F: hw/char/riscv_htif.c F: hw/riscv/ diff --git a/docs/specs/riscv-iommu.rst b/docs/specs/riscv-iommu.rst index 000c7e1f57..991d376fdc 100644 --- a/docs/specs/riscv-iommu.rst +++ b/docs/specs/riscv-iommu.rst @@ -4,7 +4,7 @@ RISC-V IOMMU support for RISC-V machines ======================================== QEMU implements a RISC-V IOMMU emulation based on the RISC-V IOMMU spec -version 1.0 `iommu1.0`_. +version 1.0 `iommu1.0.0`_. The emulation includes a PCI reference device (riscv-iommu-pci) and a platform bus device (riscv-iommu-sys) that QEMU RISC-V boards can use. The 'virt' @@ -14,7 +14,7 @@ riscv-iommu-pci reference device -------------------------------- This device implements the RISC-V IOMMU emulation as recommended by the section -"Integrating an IOMMU as a PCIe device" of `iommu1.0`_: a PCI device with base +"Integrating an IOMMU as a PCIe device" of `iommu1.0.0`_: a PCI device with base class 08h, sub-class 06h and programming interface 00h. As a reference device it doesn't implement anything outside of the specification, @@ -109,7 +109,7 @@ riscv-iommu options: - "s-stage": enabled - "g-stage": enabled -.. _iommu1.0: https://github.com/riscv-non-isa/riscv-iommu/releases/download/v1.0/riscv-iommu.pdf +.. _iommu1.0.0: https://github.com/riscv-non-isa/riscv-iommu/releases/download/v1.0.0/riscv-iommu.pdf .. _linux-v8: https://lore.kernel.org/linux-riscv/cover.1718388908.git.tjeznach@rivosinc.com/ diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index 4ffeeaa1c9..0f4997a918 100644 --- a/target/riscv/kvm/kvm-cpu.c +++ b/target/riscv/kvm/kvm-cpu.c @@ -624,8 +624,6 @@ static void kvm_riscv_reset_regs_csr(CPURISCVState *env) env->stval = 0; env->mip = 0; env->satp = 0; - env->scounteren = 0; - env->senvcfg = 0; } static int kvm_riscv_get_regs_csr(CPUState *cs) @@ -641,8 +639,6 @@ static int kvm_riscv_get_regs_csr(CPUState *cs) KVM_RISCV_GET_CSR(cs, env, stval, env->stval); KVM_RISCV_GET_CSR(cs, env, sip, env->mip); KVM_RISCV_GET_CSR(cs, env, satp, env->satp); - KVM_RISCV_GET_CSR(cs, env, scounteren, env->scounteren); - KVM_RISCV_GET_CSR(cs, env, senvcfg, env->senvcfg); return 0; } @@ -660,8 +656,6 @@ static int kvm_riscv_put_regs_csr(CPUState *cs) KVM_RISCV_SET_CSR(cs, env, stval, env->stval); KVM_RISCV_SET_CSR(cs, env, sip, env->mip); KVM_RISCV_SET_CSR(cs, env, satp, env->satp); - KVM_RISCV_SET_CSR(cs, env, scounteren, env->scounteren); - KVM_RISCV_SET_CSR(cs, env, senvcfg, env->senvcfg); return 0; } |