commit bd17eae1092bad96feba01f687c3ddf6adf6b9ae
author Zelalem Aweke <zelalem.aweke@arm.com> Wed Nov 03 13:31:53 2021 -0500
committer Joanna Farley <joanna.farley@arm.com> Tue Apr 12 17:41:23 2022 +0200
tree 0933b189b656b318306f61ffd42b94b39b715704
parent 260935ec5385d2a86833d9d970315159c22bf0be

refactor(context mgmt): remove registers accessible only from secure state from EL2 context

The following registers are only accessible from secure state,
therefore don't need to be saved/restored during world switch.
 - SDER32_EL2
 - VSTCR_EL2
 - VSTTBR_EL2

This patch removes these registers from EL2 context.

Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I24d08aacb1b6def261c7b37d3e1265bb76adafdc

include/lib/el3_runtime/aarch64/context.h

diff --git a/include/lib/el3_runtime/aarch64/context.h b/include/lib/el3_runtime/aarch64/context.h
index d2d12e5..3a09383 100644
--- a/include/lib/el3_runtime/aarch64/context.h
+++ b/include/lib/el3_runtime/aarch64/context.h
@@ -220,20 +220,17 @@
 #define CTX_TTBR1_EL2		U(0x1a0)
 #define CTX_VDISR_EL2		U(0x1a8)
 #define CTX_VSESR_EL2		U(0x1b0)
-#define CTX_VSTCR_EL2		U(0x1b8)
-#define CTX_VSTTBR_EL2		U(0x1c0)
-#define CTX_SDER32_EL2		U(0x1c8)
-#define CTX_VNCR_EL2		U(0x1d0)
-#define CTX_TRFCR_EL2		U(0x1d8)
+#define CTX_VNCR_EL2		U(0x1b8)
+#define CTX_TRFCR_EL2		U(0x1c0)
 
 // Starting with Armv8.5
-#define CTX_SCXTNUM_EL2		U(0x1e0)
+#define CTX_SCXTNUM_EL2		U(0x1c8)
 
 // Register for FEAT_HCX
-#define CTX_HCRX_EL2            U(0x1e8)
+#define CTX_HCRX_EL2            U(0x1d0)
 
 /* Align to the next 16 byte boundary */
-#define CTX_EL2_SYSREGS_END	U(0x1f0)
+#define CTX_EL2_SYSREGS_END	U(0x1e0)
 
 #endif /* CTX_INCLUDE_EL2_REGS */