6c4c7d0f96
This branch is now considered frozen: future bhyve development will take place in a branch off -CURRENT. sys/dev/bvm/bvm_console.c sys/dev/bvm/bvm_dbg.c - simple console driver/gdb debug port used for bringup. supported by user-space bhyve executable sys/conf/options.amd64 sys/amd64/amd64/minidump_machdep.c - allow NKPT to be set in the kernel config file sys/amd64/conf/GENERIC - mptable config options; bhyve user-space executable creates an mptable with number of CPUs, and optional vendor extension - add bvm console/debug - set NKPT to 512 to allow loading of large RAM disks from the loader - include kdb/gdb sys/amd64/amd64/local_apic.c sys/amd64/amd64/apic_vector.S sys/amd64/include/specialreg.h - if x2apic mode available, use MSRs to access the local APIC, otherwise fall back to 'classic' MMIO mode sys/amd64/amd64/mp_machdep.c - support AP spinup on CPU models that don't have real-mode support by overwriting the real-mode page with a message that supplies the bhyve user-space executable with enough information to start the AP directly in 64-bit mode. sys/amd64/amd64/vm_machdep.c - insert pause statements into cpu shutdown busy-wait loops sys/dev/blackhole/blackhole.c sys/modules/blackhole/Makefile - boot-time loadable module that claims all PCI bus/slot/funcs specified in an env var that are to be used for PCI passthrough sys/amd64/amd64/intr_machdep.c - allow round-robin assignment of device interrupts to CPUs to be disabled from the loader sys/amd64/include/bus.h - convert string ins/outs instructions to loops of individual in/out since bhyve doesn't support these yet sys/kern/subr_bus.c - if the device was no created with a fixed devclass, then remove it's association with the devclass it was associated with during probe. Otherwise, new drivers do not get a chance to probe/attach since the device will stay married to the first driver that it probed successfully but failed to attach. Sponsored by: NetApp, Inc.
130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* 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 NETAPP, INC ``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 NETAPP, INC 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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* $FreeBSD$
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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/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/linker.h>
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#include <sys/libkern.h>
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#include <dev/pci/pcivar.h>
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static int
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linker_file_iterator(linker_file_t lf, void *arg)
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{
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const char *file = arg;
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if (strcmp(lf->filename, file) == 0)
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return (1);
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else
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return (0);
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}
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static boolean_t
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pptdev(int bus, int slot, int func)
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{
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int found, b, s, f, n;
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char *val, *cp, *cp2;
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/*
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* setenv pptdevs "1/2/3 4/5/6 7/8/9 10/11/12"
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*/
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found = 0;
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cp = val = getenv("pptdevs");
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while (cp != NULL && *cp != '\0') {
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if ((cp2 = strchr(cp, ' ')) != NULL)
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*cp2 = '\0';
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n = sscanf(cp, "%d/%d/%d", &b, &s, &f);
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if (n == 3 && bus == b && slot == s && func == f) {
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found = 1;
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break;
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}
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if (cp2 != NULL)
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*cp2++ = ' ';
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cp = cp2;
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}
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freeenv(val);
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return (found);
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}
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static int
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pci_blackhole_probe(device_t dev)
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{
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int bus, slot, func;
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/*
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* If 'vmm.ko' has also been loaded the don't try to claim
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* any pci devices.
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*/
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if (linker_file_foreach(linker_file_iterator, "vmm.ko"))
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return (ENXIO);
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bus = pci_get_bus(dev);
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slot = pci_get_slot(dev);
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func = pci_get_function(dev);
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if (pptdev(bus, slot, func))
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return (0);
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else
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return (ENXIO);
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}
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static int
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pci_blackhole_attach(device_t dev)
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{
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/*
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* We never really want to claim the devices but just want to prevent
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* other drivers from getting to them.
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*/
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return (ENXIO);
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}
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static device_method_t pci_blackhole_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, pci_blackhole_probe),
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DEVMETHOD(device_attach, pci_blackhole_attach),
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{ 0, 0 }
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};
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static driver_t pci_blackhole_driver = {
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"blackhole",
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pci_blackhole_methods,
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};
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devclass_t blackhole_devclass;
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DRIVER_MODULE(blackhole, pci, pci_blackhole_driver, blackhole_devclass, 0, 0);
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MODULE_DEPEND(blackhole, pci, 1, 1, 1);
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