diff options
Diffstat (limited to 'arch/riscv/kvm/main.c')
| -rw-r--r-- | arch/riscv/kvm/main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/riscv/kvm/main.c b/arch/riscv/kvm/main.c index 421ecf4e6360..2e5ca43c8c49 100644 --- a/arch/riscv/kvm/main.c +++ b/arch/riscv/kvm/main.c @@ -58,6 +58,14 @@ int kvm_arch_hardware_enable(void) void kvm_arch_hardware_disable(void) { + /* + * After clearing the hideleg CSR, the host kernel will receive + * spurious interrupts if hvip CSR has pending interrupts and the + * corresponding enable bits in vsie CSR are asserted. To avoid it, + * hvip CSR and vsie CSR must be cleared before clearing hideleg CSR. + */ + csr_write(CSR_VSIE, 0); + csr_write(CSR_HVIP, 0); csr_write(CSR_HEDELEG, 0); csr_write(CSR_HIDELEG, 0); } |