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hv: extend sbuf hypercall

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Extend sbuf hypercall to support other kinds of share buffer.

Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Conghui
2022-09-06 15:50:43 +08:00
committed by acrnsi-robot
parent efb01db779
commit 9cf9606e56
7 changed files with 49 additions and 41 deletions
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27
hypervisor/common/hypercall.c
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@@ -518,6 +518,33 @@ int32_t hcall_set_ioreq_buffer(struct acrn_vcpu *vcpu, struct acrn_vm *target_vm
return ret;
}
/**
* @brief Setup a share buffer for a VM.
*
* @param vcpu Pointer to vCPU that initiates the hypercall
* @param param1 guest physical address. This gpa points to
* struct sbuf_setup_param
*
* @pre is_service_vm(vcpu->vm)
* @return 0 on success, non-zero on error.
*/
int32_t hcall_setup_sbuf(struct acrn_vcpu *vcpu, struct acrn_vm *target_vm,
__unused uint64_t param1, uint64_t param2)
{
struct acrn_vm *vm = vcpu->vm;
struct acrn_sbuf_param asp;
uint64_t *hva;
int ret = -1;
if (copy_from_gpa(vm, &asp, param2, sizeof(asp)) == 0) {
if (asp.gpa != 0U) {
hva = (uint64_t *)gpa2hva(vm, asp.gpa);
ret = sbuf_setup_common(target_vm, asp.cpu_id, asp.sbuf_id, hva);
}
}
return ret;
}
/**
* @brief notify request done
*