/*      $NetBSD: autoconf.c,v 1.26 2023/10/17 12:07:42 bouyer Exp $     */
/*      NetBSD: autoconf.c,v 1.75 2003/12/30 12:33:22 pk Exp    */

/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*      @(#)autoconf.c  7.1 (Berkeley) 5/9/91
*/

/*
* Setup the system to run on the current machine.
*
* Configure() is called at boot time and initializes the vba
* device tables and the memory controller monitoring.  Available
* devices are determined (from possibilities mentioned in ioconf.c),
* and the drivers are initialized.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.26 2023/10/17 12:07:42 bouyer Exp $");

#include "opt_xen.h"
#include "opt_multiprocessor.h"
#include "opt_nfs_boot.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/disklabel.h>
#include <sys/disk.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/vnode.h>
#include <sys/fcntl.h>
#include <sys/dkio.h>
#include <sys/proc.h>
#include <sys/kauth.h>

#ifdef NFS_BOOT_BOOTSTATIC
#include <net/if.h>
#include <net/if_ether.h>
#include <netinet/in.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsproto.h>
#include <nfs/nfs.h>
#include <nfs/nfsmount.h>
#include <nfs/nfsdiskless.h>
#include <xen/if_xennetvar.h>
#endif

#include <machine/pte.h>
#include <machine/cpu.h>
#include <machine/gdt.h>
#include <machine/pcb.h>
#include <machine/bootinfo.h>

#include <x86/autoconf.h>

struct disklist *x86_alldisks;
int x86_ndisks;
int x86_found_console;

#include "bios32.h"
#if NBIOS32 > 0
#include <machine/bios32.h>
/* XXX */
extern void platform_init(void);
#endif

#include "opt_pcibios.h"
#ifdef PCIBIOS
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <i386/pci/pcibios.h>
#endif

#ifdef DEBUG_GEOM
#define DPRINTF(a) printf a
#else
#define DPRINTF(a)
#endif

/*
* Determine i/o configuration for a machine.
*/
void
cpu_configure(void)
{
       struct pcb *pcb;

       xen_startrtclock();

#if defined(DOM0OPS)
       if (xendomain_is_dom0()) {
#if NBIOS32 > 0
               bios32_init();
               platform_init();
               /* identify hypervisor type from SMBIOS */
               identify_hypervisor();
#endif /* NBIOS32 > 0 */
       }
#endif /* DOM0OPS */
#ifdef PCIBIOS
       pcibios_init();
#endif

       if (config_rootfound("mainbus", NULL) == NULL)
               panic("configure: mainbus not configured");

#ifdef INTRDEBUG
       intr_printconfig();
#endif

#if NIOAPIC > 0
       ioapic_enable();
#endif
       /* resync cr0 after FPU configuration */
       pcb = lwp_getpcb(&lwp0);
       pcb->pcb_cr0 = rcr0();
#ifdef MULTIPROCESSOR
       /* propagate this to the idle pcb's. */
       cpu_init_idle_lwps();
#endif

       spl0();
}

void
cpu_rootconf(void)
{
       cpu_bootconf();

       printf("boot device: %s\n",
           booted_device ? device_xname(booted_device) :
           bootspec ? bootspec : "<unknown>");
       rootconf();
}


/*
* Attempt to find the device from which we were booted.
*/
void
cpu_bootconf(void)
{
       xen_bootconf();
}
#include "pci.h"

#include <dev/isa/isavar.h>
#if NPCI > 0
#include <dev/pci/pcivar.h>
#endif


#if defined(NFS_BOOT_BOOTSTATIC) && defined(DOM0OPS)
static int
dom0_bootstatic_callback(struct nfs_diskless *nd)
{
#if 0
       struct ifnet *ifp = nd->nd_ifp;
#endif
       int flags = 0;
       union xen_cmdline_parseinfo xcp;
       struct sockaddr_in *sin;

       memset(&xcp, 0, sizeof(xcp.xcp_netinfo));
       xcp.xcp_netinfo.xi_ifno = 0; /* XXX first interface hardcoded */
       xcp.xcp_netinfo.xi_root = nd->nd_root.ndm_host;
       xen_parse_cmdline(XEN_PARSE_NETINFO, &xcp);

       if (xcp.xcp_netinfo.xi_root[0] != '\0') {
               flags |= NFS_BOOT_HAS_SERVER;
               if (strchr(xcp.xcp_netinfo.xi_root, ':') != NULL)
                       flags |= NFS_BOOT_HAS_ROOTPATH;
       }

       nd->nd_myip.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[0]);
       nd->nd_gwip.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[2]);
       nd->nd_mask.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[3]);

       sin = (struct sockaddr_in *) &nd->nd_root.ndm_saddr;
       memset((void *)sin, 0, sizeof(*sin));
       sin->sin_len = sizeof(*sin);
       sin->sin_family = AF_INET;
       sin->sin_addr.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[1]);

       if (nd->nd_myip.s_addr)
               flags |= NFS_BOOT_HAS_MYIP;
       if (nd->nd_gwip.s_addr)
               flags |= NFS_BOOT_HAS_GWIP;
       if (nd->nd_mask.s_addr)
               flags |= NFS_BOOT_HAS_MASK;
       if (sin->sin_addr.s_addr)
               flags |= NFS_BOOT_HAS_SERVADDR;

       return flags;
}
#endif

void
device_register(device_t dev, void *aux)
{
       device_t isaboot, pciboot;
       device_t found = NULL;

       isaboot = device_isa_register(dev, aux);
       pciboot = device_pci_register(dev, aux);

       /*
        * Handle network interfaces here, the attachment information is
        * not available driver independently later.
        * For disks, there is nothing useful available at attach time.
        */
#if NXENNET_HYPERVISOR > 0 || NXENNET_XENBUS > 0 || defined(DOM0OPS)
       if (device_class(dev) == DV_IFNET) {
               union xen_cmdline_parseinfo xcp;

#ifdef NFS_BOOT_BOOTSTATIC
#ifdef DOM0OPS
               if (xendomain_is_privileged()) {
                       nfs_bootstatic_callback = dom0_bootstatic_callback;
               } else
#endif
#if NXENNET_HYPERVISOR > 0 || NXENNET_XENBUS > 0
               nfs_bootstatic_callback = xennet_bootstatic_callback;
#endif
#endif
               xen_parse_cmdline(XEN_PARSE_BOOTDEV, &xcp);
               if (strncmp(xcp.xcp_bootdev, device_xname(dev),
                   sizeof(xcp.xcp_bootdev)) == 0)
               {
                       found = dev;
               }
       }
#endif
       if (found == NULL) {
               if (isaboot != NULL)
                       found = isaboot;
               else if (pciboot != NULL)
                       found = pciboot;
       }

       if (found) {
               if (booted_device) {
                       /* XXX should be a "panic()" */
                       printf("warning: double match for boot device (%s, %s)\n",
                           device_xname(booted_device), device_xname(dev));
                       return;
               }
               booted_device = found;
               booted_method = "device/register";
       }
}

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