diff options
Diffstat (limited to 'tools/testing/selftests/kvm/lib/riscv/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/riscv/processor.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c index 87ce44992c87..4be94d0f0b94 100644 --- a/tools/testing/selftests/kvm/lib/riscv/processor.c +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c @@ -316,6 +316,9 @@ struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id, vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.sp), stack_vaddr + stack_size); vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.pc), (unsigned long)guest_code); + /* Setup sscratch for guest_get_vcpuid() */ + vcpu_set_reg(vcpu, RISCV_GENERAL_CSR_REG(sscratch), vcpu_id); + /* Setup default exception vector of guest */ vcpu_set_reg(vcpu, RISCV_GENERAL_CSR_REG(stvec), (unsigned long)guest_unexp_trap); @@ -437,6 +440,11 @@ void vm_install_interrupt_handler(struct kvm_vm *vm, exception_handler_fn handle handlers->exception_handlers[1][0] = handler; } +uint32_t guest_get_vcpuid(void) +{ + return csr_read(CSR_SSCRATCH); +} + struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4, |