diff options
| -rw-r--r-- | drivers/virt/nitro_enclaves/ne_misc_dev.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/virt/nitro_enclaves/ne_misc_dev.c b/drivers/virt/nitro_enclaves/ne_misc_dev.c index 24e4270d181d..fe83588c8b02 100644 --- a/drivers/virt/nitro_enclaves/ne_misc_dev.c +++ b/drivers/virt/nitro_enclaves/ne_misc_dev.c @@ -807,6 +807,42 @@ static long ne_enclave_ioctl(struct file *file, unsigned int cmd, unsigned long return 0; } + case NE_GET_IMAGE_LOAD_INFO: { + struct ne_image_load_info image_load_info = {}; + + if (copy_from_user(&image_load_info, (void __user *)arg, sizeof(image_load_info))) + return -EFAULT; + + mutex_lock(&ne_enclave->enclave_info_mutex); + + if (ne_enclave->state != NE_STATE_INIT) { + dev_err_ratelimited(ne_misc_dev.this_device, + "Enclave is not in init state\n"); + + mutex_unlock(&ne_enclave->enclave_info_mutex); + + return -NE_ERR_NOT_IN_INIT_STATE; + } + + mutex_unlock(&ne_enclave->enclave_info_mutex); + + if (!image_load_info.flags || + image_load_info.flags >= NE_IMAGE_LOAD_MAX_FLAG_VAL) { + dev_err_ratelimited(ne_misc_dev.this_device, + "Incorrect flag in enclave image load info\n"); + + return -NE_ERR_INVALID_FLAG_VALUE; + } + + if (image_load_info.flags == NE_EIF_IMAGE) + image_load_info.memory_offset = NE_EIF_LOAD_OFFSET; + + if (copy_to_user((void __user *)arg, &image_load_info, sizeof(image_load_info))) + return -EFAULT; + + return 0; + } + default: return -ENOTTY; } |