Re: [PATCH] x86/sgx: Allow enclaves to use Asynchrounous Exit Notification

[Dave Hansen <dave.hansen@xxxxxxxxx>]

On 7/14/22 06:19, Haitao Huang wrote:
> 
> I think you need add this change in arch/x86/kernel/cpu/sgx/ioctl.c,
> inside sgx_encl_create function:
> 
> -    encl->attributes_mask = SGX_ATTR_DEBUG | SGX_ATTR_MODE64BIT |
> SGX_ATTR_KSS;
> +    encl->attributes_mask = SGX_ATTR_DEBUG | SGX_ATTR_MODE64BIT |
> SGX_ATTR_KSS | SGX_ATTR_ASYNC_EXIT_NOTIFY;
> 
> Otherwise, EINIT ioctl fails with this new attribute set in enclave secs.

Makes sense.  I'll add it there.

I also just realized we need to update arch/x86/kvm/cpuid.c as well.  It
keeps a complete list of guest-available SGX attributes.