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/*
* Copyright (c) 2021, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SPM_COMMON_H
#define SPM_COMMON_H
#include <ffa_helpers.h>
#include <stdint.h>
#include <string.h>
/* Hypervisor ID at physical FFA instance */
#define HYP_ID (0)
/*
* The bit 15 of the FF-A ID indicates whether the partition is executing
* in the normal world, in case it is a Virtual Machine (VM); or in the
* secure world, in case it is a Secure Partition (SP).
*
* If bit 15 is set partition is an SP; if bit 15 is clear partition is
* a VM.
*/
#define SP_ID_MASK U(1 << 15)
#define SP_ID(x) ((x) | SP_ID_MASK)
#define IS_SP_ID(x) ((x & SP_ID_MASK) != 0U)
struct ffa_features_test {
const char *test_name;
unsigned int feature;
unsigned int expected_ret;
};
struct mailbox_buffers {
void *recv;
void *send;
};
#define CONFIGURE_MAILBOX(mb_name, buffers_size) \
do { \
/* Declare RX/TX buffers at virtual FF-A instance */ \
static struct { \
uint8_t rx[buffers_size]; \
uint8_t tx[buffers_size]; \
} __aligned(PAGE_SIZE) mb_buffers; \
mb_name.recv = (void *)mb_buffers.rx; \
mb_name.send = (void *)mb_buffers.tx; \
} while (false)
#define CONFIGURE_AND_MAP_MAILBOX(mb_name, buffers_size, smc_ret) \
do { \
CONFIGURE_MAILBOX(mb_name, buffers_size); \
smc_ret = ffa_rxtx_map( \
(uintptr_t)mb_name.send, \
(uintptr_t)mb_name.recv, \
buffers_size / PAGE_SIZE \
); \
} while (false)
/*
* Vector length:
* SIMD: 128 bits = 16 bytes
*/
#define SIMD_VECTOR_LEN_BYTES 16
#define SIMD_NUM_VECTORS 32
typedef uint8_t simd_vector_t[SIMD_VECTOR_LEN_BYTES];
/*
* Fills SIMD registers with the content of the container v.
* Number of vectors is assumed to be SIMD_NUM_VECTORS.
*/
void fill_simd_vector_regs(const simd_vector_t v[SIMD_NUM_VECTORS]);
/*
* Reads contents of SIMD registers into the provided container v.
* Number of vectors is assumed to be SIMD_NUM_VECTORS.
*/
void read_simd_vector_regs(simd_vector_t v[SIMD_NUM_VECTORS]);
bool check_spmc_execution_level(void);
unsigned int get_ffa_feature_test_target(const struct ffa_features_test **test_target);
#endif /* SPM_COMMON_H */
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