On Wed, 2025-08-06 at 11:11 +0300, Elena Reshetova wrote:
> Add error codes for ENCLS[EUPDATESVN], then SGX CPUSVN update
> process can know the execution state of EUPDATESVN and notify
> userspace.
>
> Signed-off-by: Elena Reshetova <elena.reshet...@intel.com>
> ---
> arch/x86/include/asm/sgx.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/x86/include/asm/sgx.h b/arch/x86/include/asm/sgx.h
> index 6a0069761508..2da5b3b117a1 100644
> --- a/arch/x86/include/asm/sgx.h
> +++ b/arch/x86/include/asm/sgx.h
> @@ -73,6 +73,10 @@ enum sgx_encls_function {
> * public key does not match IA32_SGXLEPUBKEYHASH.
> * %SGX_PAGE_NOT_MODIFIABLE: The EPC page cannot be modified because it
> * is in the PENDING or MODIFIED state.
> + * %SGX_INSUFFICIENT_ENTROPY: Insufficient entropy in RNG.
> + * %SGX_NO_UPDATE: EUPDATESVN could not update the CPUSVN because
> the
> + * current SVN was not newer than CPUSVN. This is
> the most
> + * common error code returned by EUPDATESVN.
> * %SGX_UNMASKED_EVENT: An unmasked event, e.g. INTR, was
> received
> */
> enum sgx_return_code {
> @@ -81,6 +85,8 @@ enum sgx_return_code {
> SGX_CHILD_PRESENT = 13,
> SGX_INVALID_EINITTOKEN = 16,
> SGX_PAGE_NOT_MODIFIABLE = 20,
> + SGX_INSUFFICIENT_ENTROPY = 29,
> + SGX_NO_UPDATE = 31,
It seems the tap/writespace is broken, i.e., this error code is not
aligned with others.
> SGX_UNMASKED_EVENT = 128,
> };
>
