x86/sgx: Add SGX2 ENCLS leaf definitions (EAUG, EMODPR and EMODT)

mainline inclusion
from mainline-5.13
commit 32ddda8e
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I5EZEK
CVE: NA

Intel-SIG: commit 32ddda8e x86/sgx: Add SGX2 ENCLS leaf definitions
(EAUG, EMODPR and EMODT).
Backport for SGX virtualization support

--------------------------------

Define the ENCLS leafs that are available with SGX2, also referred to as
Enclave Dynamic Memory Management (EDMM).  The leafs will be used by KVM
to conditionally expose SGX2 capabilities to guests.
Signed-off-by: NSean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: NKai Huang <kai.huang@intel.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Acked-by: NJarkko Sakkinen <jarkko@kernel.org>
Acked-by: NDave Hansen <dave.hansen@intel.com>
Link: https://lkml.kernel.org/r/5f0970c251ebcc6d5add132f0d750cc753b7060f.1616136308.git.kai.huang@intel.comSigned-off-by: NFan Du <fan.du@intel.com>
Signed-off-by: NZhiquan Li <zhiquan1.li@intel.com>

arch/x86/include/asm/sgx.h

@@ -40,6 +40,9 @@ enum sgx_encls_function {
 	EPA	= 0x0A,
 	EWB	= 0x0B,
 	ETRACK	= 0x0C,
+	EAUG	= 0x0D,
+	EMODPR	= 0x0E,
+	EMODT	= 0x0F,
 };
 
 /**