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;
> > 	}