99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright 2020 Conrad Meyer <cem@FreeBSD.org>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/errno.h>
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#include <sys/tree.h>
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#include <amd64/include/vmm.h>
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#include <x86/include/apicreg.h>
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struct vm;
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struct vm_hpet_cap;
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#include <vmm/io/vioapic.h>
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#include <vmm/io/vhpet.h>
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#include <err.h>
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#include <errno.h>
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#include <vmmapi.h>
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#include "kernemu_dev.h"
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#include "mem.h"
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static int
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apic_handler(struct vmctx *ctx, int vcpu, int dir, uint64_t addr, int size,
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uint64_t *val, void *arg1 __unused, long arg2 __unused)
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{
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if (vm_readwrite_kernemu_device(ctx, vcpu, addr, (dir == MEM_F_WRITE),
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size, val) != 0)
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return (errno);
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return (0);
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}
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static struct mem_range lapic_mmio = {
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.name = "kern-lapic-mmio",
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.base = DEFAULT_APIC_BASE,
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.size = PAGE_SIZE,
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.flags = MEM_F_RW | MEM_F_IMMUTABLE,
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.handler = apic_handler,
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};
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static struct mem_range ioapic_mmio = {
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.name = "kern-ioapic-mmio",
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.base = VIOAPIC_BASE,
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.size = VIOAPIC_SIZE,
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.flags = MEM_F_RW | MEM_F_IMMUTABLE,
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.handler = apic_handler,
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};
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static struct mem_range hpet_mmio = {
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.name = "kern-hpet-mmio",
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.base = VHPET_BASE,
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.size = VHPET_SIZE,
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.flags = MEM_F_RW | MEM_F_IMMUTABLE,
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.handler = apic_handler,
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};
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void
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kernemu_dev_init(void)
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{
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int rc;
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rc = register_mem(&lapic_mmio);
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if (rc != 0)
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errc(4, rc, "register_mem: LAPIC (0x%08x)",
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(unsigned)lapic_mmio.base);
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rc = register_mem(&ioapic_mmio);
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if (rc != 0)
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errc(4, rc, "register_mem: IOAPIC (0x%08x)",
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(unsigned)ioapic_mmio.base);
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rc = register_mem(&hpet_mmio);
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if (rc != 0)
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errc(4, rc, "register_mem: HPET (0x%08x)",
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(unsigned)hpet_mmio.base);
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}
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