38e6153f75
Use the text from the canonical sys/copyright.h 2-clause FreeBSD License. Reported by: grehan (thanks!)
120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/*-
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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/mman.h>
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#include <sys/uuid.h>
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#include <assert.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <machine/vmm.h>
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#include <vmmapi.h>
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#include "acpi.h"
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#include "bootrom.h"
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#include "vmgenc.h"
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static uint64_t vmgen_gpa;
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void
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vmgenc_init(struct vmctx *ctx)
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{
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char *region;
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int error;
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error = bootrom_alloc(ctx, PAGE_SIZE, PROT_READ, 0, ®ion,
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&vmgen_gpa);
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if (error != 0)
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errx(4, "%s: bootrom_alloc", __func__);
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/*
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* It is basically harmless to always generate a random ID when
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* starting a VM.
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*/
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error = getentropy(region, sizeof(struct uuid));
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if (error == -1)
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err(4, "%s: getentropy", __func__);
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/* XXX When we have suspend/resume/rollback. */
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#if 0
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acpi_raise_gpe(ctx, GPE_VMGENC);
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#endif
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}
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void
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vmgenc_write_dsdt(void)
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{
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dsdt_line("");
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dsdt_indent(1);
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dsdt_line("Scope (_SB)");
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dsdt_line("{");
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dsdt_line(" Device (GENC)");
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dsdt_line(" {");
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dsdt_indent(2);
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dsdt_line("Name (_CID, \"VM_Gen_Counter\")");
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dsdt_line("Method (_HID, 0, NotSerialized)");
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dsdt_line("{");
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dsdt_line(" Return (\"Bhyve_V_Gen_Counter_V1\")");
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dsdt_line("}");
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dsdt_line("Name (_UID, 0)");
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dsdt_line("Name (_DDN, \"VM_Gen_Counter\")");
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dsdt_line("Name (ADDR, Package (0x02)");
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dsdt_line("{");
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dsdt_line(" 0x%08x,", (uint32_t)vmgen_gpa);
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dsdt_line(" 0x%08x", (uint32_t)(vmgen_gpa >> 32));
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dsdt_line("})");
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dsdt_unindent(2);
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dsdt_line(" }"); /* Device (GENC) */
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dsdt_line("}"); /* Scope (_SB) */
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dsdt_line("");
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dsdt_line("Scope (_GPE)");
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dsdt_line("{");
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dsdt_line(" Method (_E%02x, 0, NotSerialized)", GPE_VMGENC);
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dsdt_line(" {");
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dsdt_line(" Notify (\\_SB.GENC, 0x80)");
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dsdt_line(" }");
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dsdt_line("}");
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dsdt_unindent(1);
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}
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