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[ARCH/AARCH64] Update Hypercall API 

Signed-off-by: GuEe-GUI <2991707448@qq.com>
This commit is contained in:
GuEe-GUI 2025-07-15 10:17:54 +08:00 committed by Rbb666
parent 5e03e07c43
commit 8a4890a9e5
2 changed files with 43 additions and 9 deletions
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30
libcpu/aarch64/common/hypercall.c
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@ -1,16 +1,40 @@
/*
* Copyright (c) 2006-2020, RT-Thread Development Team
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-02-24 GuEe-GUI first version
* 2023-02-21 GuEe-GUI update API
*/
#include <hypercall.h>
rt_err_t rt_hv_stage2_map(unsigned long paddr, unsigned long size)
rt_err_t rt_hv_version(rt_uint32_t *out_version)
{
return rt_hw_hypercall(120, paddr & (~4095), (paddr & (~4095)) + size, (1 << 0) | (1 << 1) | (1 << 4), 0, 0, 0, 0);
if (out_version)
{
*out_version = rt_hw_hypercall(HYPERCALL_START + 0, 0, 0, 0, 0, 0, 0, 0);
if ((int)*out_version < 0)
{
return *out_version;
}
}
return -RT_EINVAL;
}
rt_err_t rt_hv_debug(rt_uint32_t id, rt_uint32_t argc,
rt_ubase_t arg0, rt_ubase_t arg1, rt_ubase_t arg2,
rt_ubase_t arg3, rt_ubase_t arg4)
{
return rt_hw_hypercall(HYPERCALL_START + 1, id,
arg0, arg1, arg2, arg3, arg4, argc);
}
rt_err_t rt_hv_console(char c)
{
return rt_hw_hypercall(HYPERCALL_START + 2, c, 0, 0, 0, 0, 0, 0);
}

22
libcpu/aarch64/common/include/hypercall.h
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@ -1,27 +1,37 @@
/*
* Copyright (c) 2006-2020, RT-Thread Development Team
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-02-24 GuEe-GUI first version
* 2023-02-21 GuEe-GUI update API
*/
#ifndef __HYPERCALL_H__
#define __HYPERCALL_H__
#include <rtdef.h>
#include <smccc.h>
#define HYPERCALL_START 0xc5000000 /* HVC64 */
#define HYPERCALL_END 0xc500ffff /* HVC64 */
rt_inline rt_uint32_t rt_hw_hypercall(rt_uint32_t w0, rt_uint64_t x1, rt_uint64_t x2,
rt_uint64_t x3, rt_uint64_t x4, rt_uint64_t x5, rt_uint64_t x6, rt_uint32_t w7)
{
register rt_uint64_t ret __asm__ ("x0");
__asm__ volatile ("hvc #0");
struct arm_smccc_res_t res;
return (rt_uint32_t)ret;
arm_smccc_hvc(w0, x1, x2, x3, x4, x5, x6, w7, &res, RT_NULL);
return res.a0;
}
rt_err_t rt_hv_stage2_map(unsigned long paddr, unsigned long size);
rt_err_t rt_hv_version(rt_uint32_t *out_version);
rt_err_t rt_hv_debug(rt_uint32_t id, rt_uint32_t argc,
rt_ubase_t arg0, rt_ubase_t arg1, rt_ubase_t arg2,
rt_ubase_t arg3, rt_ubase_t arg4);
rt_err_t rt_hv_console(char c);
#endif
#endif /* __HYPERCALL_H__ */