Re: [RFC PATCH 3/9] x86/sgx: Allow userspace to add multiple pages in single ioctl()

[Sean Christopherson]

On Mon, Jun 03, 2019 at 04:48:47PM -0700, Xing, Cedric wrote:
> > How about this for the intermediate patch:
> > 
> >     struct sgx_enclave_add_region {
> >             __u64   addr;
> >             __u64   src;
> >             __u64   size;
> >             __u64   secinfo;
> >             __u16   mrmask;
> >             __u16   reserved16;
> >             __u32   reserved;
> >     }
> > 
> > and with the flags field:
> > 
> >     struct sgx_enclave_add_region {
> >             __u64   addr;
> >             __u64   src;
> >             __u64   size;
> >             __u64   secinfo;
> >             __u16   mrmask;
> >             __u16   flags;
> 
> What is "flags" here?

In the RFC, @flags holds SGX_ALLOW_{READ,WRITE,EXEC}.

> 
> >             __u32   reserved;
> >     }