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libhermit/kernel/ibv.c
2017-10-08 16:01:22 +02:00

62 lines
2.5 KiB
C

/*
* Copyright (c) 2017, Annika Wierichs, RWTH Aachen University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <asm/page.h>
#include <asm/uhyve.h>
#include <hermit/stddef.h>
#include <hermit/stdio.h>
#include <hermit/ibv.h> // GEHT
typedef struct {
int *num_devices;
struct ibv_device **ret;
} __attribute__((packed)) uhyve_ibv_get_device_list_t;
struct ibv_device** h_ibv_get_device_list(int *num_devices)
{
uhyve_ibv_get_device_list_t uhyve_args = {(int*) virt_to_phys((size_t) num_devices)};
uhyve_send(UHYVE_PORT_IBV_GET_DEVICE_LIST, (unsigned)virt_to_phys((size_t)&uhyve_args));
return uhyve_args.ret;
// TODO: proxy implementation
}
typedef struct {
struct ibv_device *device;
char *ret;
} __attribute__((packed)) uhyve_ibv_get_device_name_t;
const char* h_ibv_get_device_name(struct ibv_device *device)
{
uhyve_ibv_get_device_name_t uhyve_args = {(struct ibv_device*) virt_to_phys((size_t) device)};
uhyve_send(UHYVE_PORT_IBV_GET_DEVICE_NAME, (unsigned)virt_to_phys((size_t)&uhyve_args));
return uhyve_args.ret;
}