freebsd-src/lib/libvmmapi/ppt.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2011 NetApp, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``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 NETAPP, INC 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 <sys/types.h>
#include <sys/ioctl.h>

#include <machine/vmm.h>

#include <string.h>

#include "vmmapi.h"
#include "internal.h"

int
vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func)
{
	struct vm_pptdev pptdev;

	bzero(&pptdev, sizeof(pptdev));
	pptdev.bus = bus;
	pptdev.slot = slot;
	pptdev.func = func;

	return (ioctl(ctx->fd, VM_BIND_PPTDEV, &pptdev));
}

int
vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func)
{
	struct vm_pptdev pptdev;

	bzero(&pptdev, sizeof(pptdev));
	pptdev.bus = bus;
	pptdev.slot = slot;
	pptdev.func = func;

	return (ioctl(ctx->fd, VM_UNBIND_PPTDEV, &pptdev));
}

int
vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
    vm_paddr_t gpa, size_t len, vm_paddr_t hpa)
{
	struct vm_pptdev_mmio pptmmio;

	bzero(&pptmmio, sizeof(pptmmio));
	pptmmio.bus = bus;
	pptmmio.slot = slot;
	pptmmio.func = func;
	pptmmio.gpa = gpa;
	pptmmio.len = len;
	pptmmio.hpa = hpa;

	return (ioctl(ctx->fd, VM_MAP_PPTDEV_MMIO, &pptmmio));
}

int
vm_unmap_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
    vm_paddr_t gpa, size_t len)
{
	struct vm_pptdev_mmio pptmmio;

	bzero(&pptmmio, sizeof(pptmmio));
	pptmmio.bus = bus;
	pptmmio.slot = slot;
	pptmmio.func = func;
	pptmmio.gpa = gpa;
	pptmmio.len = len;

	return (ioctl(ctx->fd, VM_UNMAP_PPTDEV_MMIO, &pptmmio));
}

int
vm_setup_pptdev_msi(struct vmctx *ctx, int bus, int slot, int func,
    uint64_t addr, uint64_t msg, int numvec)
{
	struct vm_pptdev_msi pptmsi;

	bzero(&pptmsi, sizeof(pptmsi));
	pptmsi.bus = bus;
	pptmsi.slot = slot;
	pptmsi.func = func;
	pptmsi.msg = msg;
	pptmsi.addr = addr;
	pptmsi.numvec = numvec;

	return (ioctl(ctx->fd, VM_PPTDEV_MSI, &pptmsi));
}

int
vm_setup_pptdev_msix(struct vmctx *ctx, int bus, int slot, int func,
    int idx, uint64_t addr, uint64_t msg, uint32_t vector_control)
{
	struct vm_pptdev_msix pptmsix;

	bzero(&pptmsix, sizeof(pptmsix));
	pptmsix.bus = bus;
	pptmsix.slot = slot;
	pptmsix.func = func;
	pptmsix.idx = idx;
	pptmsix.msg = msg;
	pptmsix.addr = addr;
	pptmsix.vector_control = vector_control;

	return (ioctl(ctx->fd, VM_PPTDEV_MSIX, &pptmsix));
}

int
vm_disable_pptdev_msix(struct vmctx *ctx, int bus, int slot, int func)
{
	struct vm_pptdev ppt;

	bzero(&ppt, sizeof(ppt));
	ppt.bus = bus;
	ppt.slot = slot;
	ppt.func = func;

	return (ioctl(ctx->fd, VM_PPTDEV_DISABLE_MSIX, &ppt));
}