main/linux-vserver: add fix for screen output on boot

was never applied to linux-vserver kernel.

ref #339

2 files changed, 60 insertions, 5 deletions

diff --git a/main/linux-vserver/APKBUILD b/main/linux-vserver/APKBUILD
index 912954526a..ff2597f754 100644
--- a/main/linux-vserver/APKBUILD
+++ b/main/linux-vserver/APKBUILD
@@ -5,7 +5,7 @@ pkgname=linux-${_flavor}
 pkgver=2.6.32.16
 
 _kernver=2.6.32
-pkgrel=1
+pkgrel=2
 pkgdesc="Linux kernel with vserver"
 url="http://linux-vserver.org/"
 depends="mkinitfs linux-firmware"
@@ -16,6 +16,7 @@ install=
 source="ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_kernver.tar.bz2
         ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2
         http://vserver.13thfloor.at/Experimental/patch-2.6.32.16-vs2.3.0.36.29.4.diff
+        x86-setup-When-restoring-the-screen-update-boot_params-screen_info.patch
         kernelconfig.x86
         "
 subpackages="$pkgname-dev"
@@ -29,10 +30,15 @@ prepare() {
                 bunzip2 -c < ../patch-$pkgver.bz2 | patch -p1 -N || return 1
         fi
 
-        for i in ../*.diff ../*.patch; do
-                [ -f $i ] || continue
-                msg "Applying $i..."
-                patch -p1 -N < $i || return 1
+        # first apply patches in specified order
+        for i in $source; do
+                i=${i##*/}
+                case $i in
+                *.patch|*.diff)
+                        msg "Applying $i..."
+                        patch -s -p1 -N < "$srcdir"/$i || return 1
+                        ;;
+                esac
         done
 
         mkdir -p "$srcdir"/build
@@ -120,4 +126,5 @@ dev() {
 md5sums="260551284ac224c3a43c4adac7df4879  linux-2.6.32.tar.bz2
 744890f9651962ceae7663d44b19df65  patch-2.6.32.16.bz2
 24354a6fd8798792b9ee21f086721cd9  patch-2.6.32.16-vs2.3.0.36.29.4.diff
+a1bcf76870b63a4a4035a8948fb758e2  x86-setup-When-restoring-the-screen-update-boot_params-screen_info.patch
 884ba32b4edb6c51426e826c44063e98  kernelconfig.x86"
diff --git a/main/linux-vserver/x86-setup-When-restoring-the-screen-update-boot_params-screen_info.patch b/main/linux-vserver/x86-setup-When-restoring-the-screen-update-boot_params-screen_info.patch
new file mode 100644
index 0000000000..a4f94d7fa4
--- /dev/null
+++ b/main/linux-vserver/x86-setup-When-restoring-the-screen-update-boot_params-screen_info.patch
@@ -0,0 +1,48 @@
+From f1f6baf8f1df29be38003089787e378567ce0086 Mon Sep 17 00:00:00 2001
+From: H. Peter Anvin <hpa@zytor.com>
+Date: Wed, 17 Feb 2010 18:32:06 -0800
+Subject: [PATCH] x86, setup: When restoring the screen, update boot_params.screen_info
+
+When we restore the screen content after a mode change, we return the
+cursor to its former position.  However, we need to also update
+boot_params.screen_info accordingly, so that the decompression code
+knows where on the screen the cursor is.  Just in case the video BIOS
+does something extra screwy, read the cursor position back from the
+BIOS instead of relying on it doing the right thing.
+
+While we're at it, make sure we cap the cursor position to the new
+screen coordinates.
+
+Reported-by: Wim Osterholt <wim@djo.tudelft.nl>
+Bugzilla-Reference: http://bugzilla.kernel.org/show_bug.cgi?id=15329
+Signed-off-by: H. Peter Anvin <hpa@zytor.com>
+---
+ arch/x86/boot/video.c |    7 +++++++
+ 1 files changed, 7 insertions(+), 0 deletions(-)
+
+diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
+index f767164..43eda28 100644
+--- a/arch/x86/boot/video.c
++++ b/arch/x86/boot/video.c
+@@ -298,11 +298,18 @@ static void restore_screen(void)
+        }
+ 
+        /* Restore cursor position */
++       if (saved.curx >= xs)
++               saved.curx = xs-1;
++       if (saved.cury >= ys)
++               saved.cury = ys-1;
++
+        initregs(&ireg);
+        ireg.ah = 0x02;         /* Set cursor position */
+        ireg.dh = saved.cury;
+        ireg.dl = saved.curx;
+        intcall(0x10, &ireg, NULL);
++
++       store_cursor_position();
+ }
+ 
+ void set_video(void)
+-- 
+1.7.1
+