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hypercall doc: Sync the comments for each hypercall from .h to .c

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For all the hypercalls, we sync the comments from .h to .c as
comments in .h file are used in architectural design and the
comments in .c are used in module design.

Tracked-On: #1595
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
This commit is contained in:
Yin Fengwei
2018-10-30 11:19:44 +08:00
committed by Eddie Dong
parent 99586e32cc
commit 7f57a74fe7
2 changed files with 317 additions and 29 deletions
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37
hypervisor/common/trusty_hypercall.c
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@@ -9,8 +9,19 @@
#define ACRN_DBG_TRUSTY_HYCALL 6U
/* this hcall is only come from trusty enabled vcpu itself, and cannot be
* called from other vcpus
/**
* @brief Switch vCPU state between Normal/Secure World.
*
* * The hypervisor uses this hypercall to do the world switch
* * The hypervisor needs to:
* * save current world vCPU contexts, and load the next world
* vCPU contexts
* * update ``rdi``, ``rsi``, ``rdx``, ``rbx`` to next world
* vCPU contexts
*
* @param vcpu Pointer to VCPU data structure
*
* @return 0 on success, non-zero on error.
*/
int32_t hcall_world_switch(struct acrn_vcpu *vcpu)
{
@@ -39,8 +50,19 @@ int32_t hcall_world_switch(struct acrn_vcpu *vcpu)
return 0;
}
/* this hcall is only come from trusty enabled vcpu itself, and cannot be
* called from other vcpus
/**
* @brief Initialize environment for Trusty-OS on a vCPU.
*
* * It is used by the User OS bootloader (``UOS_Loader``) to request ACRN
* to initialize Trusty
* * The Trusty memory region range, entry point must be specified
* * The hypervisor needs to save current vCPU contexts (Normal World)
*
* @param vcpu Pointer to vCPU data structure
* @param param guest physical address. This gpa points to
* trusty_boot_param structure
*
* @return 0 on success, non-zero on error.
*/
int32_t hcall_initialize_trusty(struct acrn_vcpu *vcpu, uint64_t param)
{
@@ -72,6 +94,13 @@ int32_t hcall_initialize_trusty(struct acrn_vcpu *vcpu, uint64_t param)
return 0;
}
/**
* @brief Save/Restore Context of Secure World.
*
* @param vcpu Pointer to VCPU data structure
*
* @return 0 on success, non-zero on error.
*/
int64_t hcall_save_restore_sworld_ctx(struct acrn_vcpu *vcpu)
{
struct acrn_vm *vm = vcpu->vm;