soc/intel/common/sgx: Define and use soc_fill_sgx_param()

To remove chip.h dependency from SGX common code
- Create API soc_fill_sgx_param() and use it in sgx.c
- Implement same API for skylake/kabylake
- define sgx_param structure

Also include intelblocks/sgx.h instead of soc/msr.h

Change-Id: I358f0817bec5dd6cd147a645675b5688969a04e0
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/21528
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/include/intelblocks/sgx.h b/src/soc/intel/common/block/include/intelblocks/sgx.h
index efcad6164b..f1dd8912fe 100644
--- a/src/soc/intel/common/block/include/intelblocks/sgx.h
+++ b/src/soc/intel/common/block/include/intelblocks/sgx.h
@@ -16,6 +16,10 @@
 #ifndef SOC_INTEL_COMMON_BLOCK_SGX_H
 #define SOC_INTEL_COMMON_BLOCK_SGX_H
 
+struct sgx_param {
+	uint8_t enable;
+};
+
 /*
  * Lock SGX memory.
  * CPU specific code needs to provide the implementation.
@@ -34,4 +38,8 @@ void prmrr_core_configure(void);
  */
 void sgx_configure(void);
 
+/* SOC specific API to get SGX params.
+ * returns 0, if able to get SGX params; otherwise returns -1 */
+int soc_fill_sgx_param(struct sgx_param *sgx_param);
+
 #endif	/* SOC_INTEL_COMMON_BLOCK_SGX_H */