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iommu.c
(9 KB)
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iommu.h
(1.89 KB)
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iommu_if.m
(3.02 KB)
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smmu.c
(42.66 KB)
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smmu_acpi.c
(6.23 KB)
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smmu_quirks.c
(2.71 KB)
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smmureg.h
(21.12 KB)
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smmuvar.h
(4.72 KB)
Editing: smmu_quirks.c
/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2020 Ruslan Bukin <br@bsdpad.com> * * This work was supported by Innovate UK project 105694, "Digital Security * by Design (DSbD) Technology Platform Prototype". * * 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 THE AUTHOR 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 AUTHOR 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 "opt_platform.h" #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/bitstring.h> #include <sys/systm.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/tree.h> #include <sys/taskqueue.h> #include <sys/sysctl.h> #include <vm/vm.h> #include <vm/pmap.h> #include <dev/pci/pcireg.h> #include <dev/pci/pcivar.h> #include <dev/iommu/iommu.h> #include "smmuvar.h" struct smmu_quirk_entry { uint16_t vendor; uint16_t device; const char *name; uint8_t event_id; uintptr_t input_address; }; /* List of events that are known and will be silenced. */ static const struct smmu_quirk_entry smmu_quirk_table[] = { { 0x10ec, 0x8168, "RealTek 8168/8111", 0x10 /* F_TRANSLATION */, 0x0 }, { 0, 0, NULL, 0, 0 }, }; bool smmu_quirks_check(device_t dev, u_int sid, uint8_t event_id, uintptr_t input_addr) { const struct smmu_quirk_entry *q; struct smmu_ctx *ctx; int i; ctx = smmu_ctx_lookup_by_sid(dev, sid); if (!ctx) return (false); for (i = 0; smmu_quirk_table[i].vendor != 0; i++) { q = &smmu_quirk_table[i]; if (ctx->vendor == q->vendor && ctx->device == q->device && input_addr == q->input_address && event_id == q->event_id) return (true); } return (false); }
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