diff options
| author | Anup Patel <apatel@ventanamicro.com> | 2022-05-09 08:13:46 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-05-20 06:39:06 +0300 |
| commit | c7fa3c48de86053b0f1949fa5532082544e30fce (patch) | |
| tree | 51d7b34b37b2be81d906d65122978d91a40b786b /arch | |
| parent | b4bbb95ea6c41a616385902df81a66293f4b744c (diff) | |
RISC-V: KVM: Treat SBI HFENCE calls as NOPs
We should treat SBI HFENCE calls as NOPs until nested virtualization
is supported by KVM RISC-V. This will help us test booting a hypervisor
under KVM RISC-V.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/kvm/vcpu_sbi_replace.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/riscv/kvm/vcpu_sbi_replace.c b/arch/riscv/kvm/vcpu_sbi_replace.c index 0f217365c287..3c1dcd38358e 100644 --- a/arch/riscv/kvm/vcpu_sbi_replace.c +++ b/arch/riscv/kvm/vcpu_sbi_replace.c @@ -117,7 +117,11 @@ static int kvm_sbi_ext_rfence_handler(struct kvm_vcpu *vcpu, struct kvm_run *run case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID: case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA: case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID: - /* TODO: implement for nested hypervisor case */ + /* + * Until nested virtualization is implemented, the + * SBI HFENCE calls should be treated as NOPs + */ + break; default: ret = -EOPNOTSUPP; } |