Re: [PATCH v2 08/18] nitro_enclaves: Add logic for enclave vm creation

Paraschiv, Andra-Irina
2020-05-25T20:53:34Z

On 22/05/2020 10:08, Greg KH wrote:
> On Fri, May 22, 2020 at 09:29:36AM +0300, Andra Paraschiv wrote:
>> Add ioctl command logic for enclave VM creation. It triggers a slot
>> allocation. The enclave resources will be associated with this slot and
>> it will be used as an identifier for triggering enclave run.
>>
>> Return a file descriptor, namely enclave fd. This is further used by the
>> associated user space enclave process to set enclave resources and
>> trigger enclave termination.
>>
>> The poll function is implemented in order to notify the enclave process
>> when an enclave exits without a specific enclave termination command
>> trigger e.g. when an enclave crashes.
>>
>> Signed-off-by: Alexandru Vasile <lexnv@amazon.com>
>> Signed-off-by: Andra Paraschiv <andraprs@amazon.com>
>> ---
>> drivers/virt/nitro_enclaves/ne_misc_dev.c | 169 ++++++++++++++++++++++
>> 1 file changed, 169 insertions(+)
>>
>> diff --git a/drivers/virt/nitro_enclaves/ne_misc_dev.c b/drivers/virt/nitro_enclaves/ne_misc_dev.c
>> index e1866fac8220..1036221238f4 100644
>> --- a/drivers/virt/nitro_enclaves/ne_misc_dev.c
>> +++ b/drivers/virt/nitro_enclaves/ne_misc_dev.c
>> @@ -63,6 +63,146 @@ struct ne_cpu_pool {
>>
>> static struct ne_cpu_pool ne_cpu_pool;
>>
>> +static int ne_enclave_open(struct inode *node, struct file *file)
>> +{
>> + return 0;
>> +}
> Again, if a file operation does nothing, don't even provide it.

I removed open() in v3.

Thank you.

Andra