[src/trunk]: src/sys/arch/xen Support bootspec.

[mlelstv <mlelstv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/23f6bc58b740
branches:  trunk
changeset: 993892:23f6bc58b740
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Sun Oct 07 11:25:55 2018 +0000

description:
Support bootspec.

diffstat:

 sys/arch/xen/include/xen.h  |   4 ++--
 sys/arch/xen/x86/autoconf.c |  20 +++++++++++++++++---
 2 files changed, 19 insertions(+), 5 deletions(-)

diffs (73 lines):

diff -r 771f48d1f258 -r 23f6bc58b740 sys/arch/xen/include/xen.h
--- a/sys/arch/xen/include/xen.h        Sun Oct 07 11:24:16 2018 +0000
+++ b/sys/arch/xen/include/xen.h        Sun Oct 07 11:25:55 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: xen.h,v 1.39 2018/07/26 15:38:26 maxv Exp $    */
+/*     $NetBSD: xen.h,v 1.40 2018/10/07 11:25:55 mlelstv Exp $ */
 
 /*
  *
@@ -44,7 +44,7 @@
 };
 
 union xen_cmdline_parseinfo {
-       char                    xcp_bootdev[16]; /* sizeof(dv_xname) */
+       char                    xcp_bootdev[144];
        struct xen_netinfo      xcp_netinfo;
        char                    xcp_console[16];
        char                    xcp_pcidevs[64];
diff -r 771f48d1f258 -r 23f6bc58b740 sys/arch/xen/x86/autoconf.c
--- a/sys/arch/xen/x86/autoconf.c       Sun Oct 07 11:24:16 2018 +0000
+++ b/sys/arch/xen/x86/autoconf.c       Sun Oct 07 11:25:55 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: autoconf.c,v 1.19 2017/07/29 06:29:32 maxv Exp $       */
+/*     $NetBSD: autoconf.c,v 1.20 2018/10/07 11:25:55 mlelstv Exp $    */
 /*     NetBSD: autoconf.c,v 1.75 2003/12/30 12:33:22 pk Exp    */
 
 /*-
@@ -45,7 +45,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.19 2017/07/29 06:29:32 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.20 2018/10/07 11:25:55 mlelstv Exp $");
 
 #include "opt_xen.h"
 #include "opt_multiprocessor.h"
@@ -150,7 +150,8 @@
        cpu_bootconf();
 
        printf("boot device: %s\n",
-           booted_device ? device_xname(booted_device) : "<unknown>");
+           booted_device ? device_xname(booted_device) :
+           bootspec ? bootspec : "<unknown>");
        rootconf();
 }
 
@@ -164,6 +165,7 @@
        device_t dv;
        deviter_t di;
        union xen_cmdline_parseinfo xcp;
+       static char bootspecbuf[sizeof(xcp.xcp_bootdev)];
 
        if (booted_device)
                return;
@@ -200,6 +202,18 @@
                break;
        }
        deviter_release(&di);
+
+       if (booted_device)
+               return;
+
+       /*
+        * not a boot device name, pass through to MI code
+        */
+       if (xcp.xcp_bootdev[0] != '\0') {
+               strlcpy(bootspecbuf, xcp.xcp_bootdev, sizeof(bootspecbuf));
+               bootspec = bootspecbuf;
+               return;
+       }
 }
 
 #include "pci.h"