Add error codes for ENCLS[EUPDATESVN], then SGX CPUSVN update
process can know the execution state of EUPDATESVN and notify
userspace.
Signed-off-by: Cathy Zhang <cathy.zhang@xxxxxxxxx>
---
arch/x86/include/asm/sgx.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/x86/include/asm/sgx.h b/arch/x86/include/asm/sgx.h
index eae20fa52b93..6aa36c1be426 100644
--- a/arch/x86/include/asm/sgx.h
+++ b/arch/x86/include/asm/sgx.h
@@ -73,6 +73,11 @@ 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_EPC_NOT_READY: EPC is not ready for SVN update.
+ * %SGX_NO_UPDATE: EUPDATESVN was successful, but CPUSVN was not
+ * updated because current SVN was not newer than
+ * CPUSVN.
* %SGX_UNMASKED_EVENT: An unmasked event, e.g. INTR, was received
*/
enum sgx_return_code {
@@ -81,6 +86,9 @@ enum sgx_return_code {
SGX_CHILD_PRESENT = 13,
SGX_INVALID_EINITTOKEN = 16,
SGX_PAGE_NOT_MODIFIABLE = 20,
+ SGX_INSUFFICIENT_ENTROPY = 29,
+ SGX_EPC_NOT_READY = 30,
+ SGX_NO_UPDATE = 31,
SGX_UNMASKED_EVENT = 128,
};
--
2.17.1
