From eab26bb7eefba51f1d09488739e7b6b4c183481b Mon Sep 17 00:00:00 2001
From: Britney Fransen <brfransen@gmail.com>
Date: Sun, 4 Oct 2020 13:27:50 +0000
Subject: kexec-tools: initial inclusion

---
 abs/extra/kexec-tools/PKGBUILD          | 33 ++++++++++++++
 abs/extra/kexec-tools/kexec             | 45 +++++++++++++++++++
 abs/extra/kexec-tools/kexec-vesafb.diff | 78 +++++++++++++++++++++++++++++++++
 abs/extra/kexec-tools/kexec.conf.d      | 16 +++++++
 4 files changed, 172 insertions(+)
 create mode 100644 abs/extra/kexec-tools/PKGBUILD
 create mode 100755 abs/extra/kexec-tools/kexec
 create mode 100644 abs/extra/kexec-tools/kexec-vesafb.diff
 create mode 100644 abs/extra/kexec-tools/kexec.conf.d

diff --git a/abs/extra/kexec-tools/PKGBUILD b/abs/extra/kexec-tools/PKGBUILD
new file mode 100644
index 0000000..6054381
--- /dev/null
+++ b/abs/extra/kexec-tools/PKGBUILD
@@ -0,0 +1,33 @@
+# Contributor: Camille Moncelier <pix@devlife.org>, simo <simo@archlinux.org>
+# Maintainer: Tobias Powalowski <tpowa@archlinux.org>
+
+pkgname=kexec-tools
+pkgver=2.0.20
+pkgrel=2
+pkgdesc="Load another kernel from the currently executing Linux kernel"
+arch=('x86_64')
+url="https://kernel.org/pub/linux/utils/kernel/kexec/"
+source=("git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git#tag=v${pkgver}")
+makedepends=('git')
+depends=('zlib' 'xz')
+license=('GPL2')
+
+prepare() {
+  cd $pkgname
+  ./bootstrap
+}
+
+build() {
+  cd $pkgname
+  CFLAGS+=' -fcommon' # https://wiki.gentoo.org/wiki/Gcc_10_porting_notes/fno_common
+  ./configure --prefix=/usr --sbindir=/usr/bin --without-lzma
+  make
+}
+
+package() {
+  cd $pkgname
+  make DESTDIR="$pkgdir" install
+  install -D -m644 kexec/kexec.8 "$pkgdir"/usr/share/man/man8/kexec.8
+}
+
+md5sums=('SKIP')
diff --git a/abs/extra/kexec-tools/kexec b/abs/extra/kexec-tools/kexec
new file mode 100755
index 0000000..c2e9a78
--- /dev/null
+++ b/abs/extra/kexec-tools/kexec
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+[ -f /etc/conf.d/kexec ] && . /etc/conf.d/kexec
+
+. /etc/rc.conf
+. /etc/rc.d/functions
+
+case "$1" in
+  start)
+      stat_busy "Enabling kexec on reboot"
+      add_daemon kexec
+      stat_done
+  ;;
+  
+  stop|load)
+    if [ "$RUNLEVEL" = "6" -o "$1" = "load" ]; then
+      stat_busy "Loading kexec kernel"
+      [ -f "$KPATH" ] || stat_fail
+      [ -f "$INITRD" ] && _INITRD="--initrd=$INITRD"
+      /sbin/kexec -l $KPATH --append="root=$ROOTPART $KPARAM" $_INITRD > /dev/null 2>&1
+    else
+      stat_busy "Disabling kexec on reboot"
+    fi
+    if [ $? -eq 0 ] ; then
+      rm_daemon kexec
+      stat_done
+    else
+      stat_fail
+    fi  
+  ;;
+
+  unload)
+    stat_busy "Unloading kexec kernel"
+    /sbin/kexec -u
+    if [ $? -eq 0 ] ; then
+      stat_done
+    else
+      stat_fail
+    fi
+  ;;
+
+  *)
+    echo "usage: $0 {start|stop|load|unload}"  
+esac
+exit 0
diff --git a/abs/extra/kexec-tools/kexec-vesafb.diff b/abs/extra/kexec-tools/kexec-vesafb.diff
new file mode 100644
index 0000000..ec16422
--- /dev/null
+++ b/abs/extra/kexec-tools/kexec-vesafb.diff
@@ -0,0 +1,78 @@
+Index: kexec-tools-1.101/kexec/arch/i386/x86-linux-setup.c
+===================================================================
+--- kexec-tools-1.101.orig/kexec/arch/i386/x86-linux-setup.c	2006-03-03 10:51:31.000000000 +0100
++++ kexec-tools-1.101/kexec/arch/i386/x86-linux-setup.c	2006-03-10 14:02:20.000000000 +0100
+@@ -24,6 +24,8 @@
+ #include <sys/stat.h>
+ #include <sys/mman.h>
+ #include <fcntl.h>
++#include <sys/ioctl.h>
++#include <linux/fb.h>
+ #include <unistd.h>
+ #include <x86/x86-linux.h>
+ #include "../../kexec.h"
+@@ -94,6 +96,56 @@ void setup_linux_bootloader_parameters(
+ 	cmdline_ptr[cmdline_len - 1] = '\0';
+ }
+ 
++int setup_linux_vesafb(struct x86_linux_param_header *real_mode)
++{
++	struct fb_fix_screeninfo fix;
++	struct fb_var_screeninfo var;
++	int fd;
++
++	fd = open("/dev/fb0", O_RDONLY);
++	if (-1 == fd)
++		return -1;
++
++	if (-1 == ioctl(fd, FBIOGET_FSCREENINFO, &fix))
++		goto out;
++	if (-1 == ioctl(fd, FBIOGET_VSCREENINFO, &var))
++		goto out;
++	if (0 != strcmp(fix.id, "VESA VGA"))
++		goto out;
++	close(fd);
++
++	real_mode->orig_video_isVGA = 0x23 /* VIDEO_TYPE_VLFB */;
++	real_mode->lfb_width      = var.xres;
++	real_mode->lfb_height     = var.yres;
++	real_mode->lfb_depth      = var.bits_per_pixel;
++	real_mode->lfb_base       = fix.smem_start;
++	real_mode->lfb_linelength = fix.line_length;
++	real_mode->vesapm_seg     = 0;
++
++	/* fixme: better get size from /proc/iomem */
++	real_mode->lfb_size       = (fix.smem_len + 65535) / 65536;
++	real_mode->pages          = (fix.smem_len + 4095) / 4096;
++
++	if (var.bits_per_pixel > 8) {
++		real_mode->red_pos    = var.red.offset;
++		real_mode->red_size   = var.red.length;
++		real_mode->green_pos  = var.green.offset;
++		real_mode->green_size = var.green.length;
++		real_mode->blue_pos   = var.blue.offset;
++		real_mode->blue_size  = var.blue.length;
++		real_mode->rsvd_pos   = var.transp.offset;
++		real_mode->rsvd_size  = var.transp.length;
++	}
++	fprintf(stderr, "%s: %dx%dx%d @ %lx +%lx\n", __FUNCTION__,
++		var.xres, var.yres, var.bits_per_pixel,
++		fix.smem_start, fix.smem_len);
++	return 0;
++
++ out:
++	close(fd);
++	return -1;
++}
++
+ void setup_linux_system_parameters(struct x86_linux_param_header *real_mode)
+ {
+ 	/* Fill in information the BIOS would usually provide */
+@@ -111,6 +163,7 @@ void setup_linux_system_parameters(struc
+ 	real_mode->orig_video_ega_bx = 0;
+ 	real_mode->orig_video_isVGA = 1;
+ 	real_mode->orig_video_points = 16;
++	setup_linux_vesafb(real_mode);
+ 
+ 	/* Fill in the memsize later */
+ 	real_mode->ext_mem_k = 0;
diff --git a/abs/extra/kexec-tools/kexec.conf.d b/abs/extra/kexec-tools/kexec.conf.d
new file mode 100644
index 0000000..991a7a2
--- /dev/null
+++ b/abs/extra/kexec-tools/kexec.conf.d
@@ -0,0 +1,16 @@
+#
+# Configuration for Kexec
+#
+
+# Path to kernel, default to stock arch kernel
+KPATH="/boot/vmlinuz-linux"
+
+# Root partition
+# The default attempts to autodetect
+ROOTPART="$(awk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' /etc/fstab)"
+
+# Additional kernel parameters
+KPARAM="ro"
+
+# Path to initrd image, default to stock arch kernel
+INITRD="/boot/initramfs-linux.img"
-- 
cgit v0.12

