refactor(spm_mm): reorganize secure partition manager code
In preparation for adding the EL3 SPMC configuration as defined in
the FF-A specification, restructure the existing SPM_MM code.
With this restructuring of the code, the 'spm_mm' directory is
renamed as 'spm' and the code inside has been split into two
sub-directories named 'common' and 'spm_mm'. The code in 'spm_mm'
directory contains the code that implements the MM interface.
In subsequent patches, the 'spmc' directory will be introduced
under the 'spm' directory providing the code that implements
the 'FF-A' interface.
Currently the common functionality for S-EL1 partitions is
limited to assembler functions to enter and exit an SP
synchronously.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I37739b9b53bc68e151ab5c1c0c6a15b3ee362241
diff --git a/services/std_svc/spm/spm_mm/spm_mm_private.h b/services/std_svc/spm/spm_mm/spm_mm_private.h
new file mode 100644
index 0000000..0eff1c0
--- /dev/null
+++ b/services/std_svc/spm/spm_mm/spm_mm_private.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SPM_MM_PRIVATE_H
+#define SPM_MM_PRIVATE_H
+
+#include <context.h>
+#include "spm_common.h"
+
+/*******************************************************************************
+ * Constants that allow assembler code to preserve callee-saved registers of the
+ * C runtime context while performing a security state switch.
+ ******************************************************************************/
+#define SP_C_RT_CTX_X19 0x0
+#define SP_C_RT_CTX_X20 0x8
+#define SP_C_RT_CTX_X21 0x10
+#define SP_C_RT_CTX_X22 0x18
+#define SP_C_RT_CTX_X23 0x20
+#define SP_C_RT_CTX_X24 0x28
+#define SP_C_RT_CTX_X25 0x30
+#define SP_C_RT_CTX_X26 0x38
+#define SP_C_RT_CTX_X27 0x40
+#define SP_C_RT_CTX_X28 0x48
+#define SP_C_RT_CTX_X29 0x50
+#define SP_C_RT_CTX_X30 0x58
+
+#define SP_C_RT_CTX_SIZE 0x60
+#define SP_C_RT_CTX_ENTRIES (SP_C_RT_CTX_SIZE >> DWORD_SHIFT)
+
+#ifndef __ASSEMBLER__
+
+#include <stdint.h>
+
+#include <lib/spinlock.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+
+typedef enum sp_state {
+ SP_STATE_RESET = 0,
+ SP_STATE_IDLE,
+ SP_STATE_BUSY
+} sp_state_t;
+
+typedef struct sp_context {
+ uint64_t c_rt_ctx;
+ cpu_context_t cpu_ctx;
+ xlat_ctx_t *xlat_ctx_handle;
+
+ sp_state_t state;
+ spinlock_t state_lock;
+} sp_context_t;
+
+
+void spm_sp_setup(sp_context_t *sp_ctx);
+
+xlat_ctx_t *spm_get_sp_xlat_context(void);
+
+int32_t spm_memory_attributes_get_smc_handler(sp_context_t *sp_ctx,
+ uintptr_t base_va);
+int spm_memory_attributes_set_smc_handler(sp_context_t *sp_ctx,
+ u_register_t page_address,
+ u_register_t pages_count,
+ u_register_t smc_attributes);
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* SPM_MM_PRIVATE_H */