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non-free/intel-ucode: Update to 20170511

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In the context of the recent Skylake/Kaby Lake hyper-threading bug [1], an
update of the intel microcode seems to be quite relevant. The resulting
package will contain "/boot/intel-ucode.img", which needs to be added as
first initial ram drive. This is achieved in extlinux by chaining the line

  INITRD=linux-$tag

to

  INITRD=intel-ucode.img,linux-$tag

See [2] for more details. If this packet is accepted, changing
/sbin/update-extlinux to check for "/boot/init-ucode.img" and adding it
as first INITRD on detection seems to be a good idea.

All credit goes to Thomas Bächler [3], from whom I shamelessly stole the build
recipe.

[1] https://lists.debian.org/debian-devel/2017/06/msg00308.html
[2] https://wiki.archlinux.org/index.php/Microcode#Syslinux
[3] https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/intel-ucode
This commit is contained in:
Marian Buschsieweke 2017-06-26 15:13:27 +02:00 committed by Timo Teräs
parent fe2d4fd44d
commit 641e27116b
2 changed files with 35 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
non-free/intel-ucode/APKBUILD
View File

@ -1,34 +1,34 @@
# Maintainer: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
pkgname=intel-ucode
pkgver=20130222
pkgver=20170511
pkgrel=0
pkgdesc="Microcode update files for Intel CPUs"
arch=noarch
url="http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&keyword=%22microcode%22"
license='custom'
source="http://downloadmirror.intel.com/22508/eng/microcode-${pkgver}.tgz
source="http://downloadmirror.intel.com/26798/eng/microcode-${pkgver}.tgz
LICENSE
intel-microcode2ucode.c"
options="!check"
build() {
cd "$srcdir"
gcc -Wall ${CFLAGS} -o intel-microcode2ucode \
intel-microcode2ucode.c || return 1
./intel-microcode2ucode ./microcode.dat || return 1
gcc -Wall ${CFLAGS} -o intel-microcode2ucode intel-microcode2ucode.c
./intel-microcode2ucode ./microcode.dat
}
package() {
cd "$srcdir"
install -d -m755 "${pkgdir}"/usr/lib/firmware/intel-ucode/ || return 1
cp intel-ucode/* "${pkgdir}"/usr/lib/firmware/intel-ucode/ || return 1
install -d -m755 "${pkgdir}"/boot
mkdir -p kernel/x86/microcode
mv microcode.bin kernel/x86/microcode/GenuineIntel.bin
echo kernel/x86/microcode/GenuineIntel.bin | cpio -o -H newc -R 0:0 > "${pkgdir}"/boot/intel-ucode.img
install -D -m644 LICENSE \
"${pkgdir}"/usr/share/licenses/${pkgname}/LICENSE || return 1
}
md5sums="e2dd0f73dc9882aa26aaade76139aee1 microcode-20130222.tgz
b0f489ae4b3e36dc8827dc53a76047aa LICENSE
0efc5f6c74a4d7e61ca22683c93c98cf intel-microcode2ucode.c"
sha256sums="fd25bd9777fc3c3b11f01e9090a2d24f7650023c9ec74bbf9f43bffe1d9d01cc microcode-20130222.tgz
6983e83ec10c6467fb9101ea496e0443f0574c805907155118e2c9f0bbea97b6 LICENSE
c51b1b1d8b4b28e7d5d007917c1e444af1a2ff04a9408aa9067c0e57d70164de intel-microcode2ucode.c"
sha512sums="7ba41a8e0f79beeb046750e30b6a9a181ed53a524f80db78cb9fe3e09bb9fdce664bf5a99882aa139d12e3a98aa5ecae316c950003bab3c69d890a5f223308f0 microcode-20130222.tgz
sha512sums="4e2066096d56430c2df73631f15cf16f2317c1d8ff745d7b7cdd784ebccc2b797565eb52703cce9b4238774dbfdcaecacd892d729b7869fdfd7644008ce74a60 microcode-20170511.tgz
d80ce9087e2ffd0168600a34de195d6514d3a496bc233294cd838498e1ce668b9ad4463bbbe7958feec0421b5aed3ade1633432ce086241e03ed06bbd53b83a5 LICENSE
0e29f995dee47707026cfb6224580c2166d000e91af7b1afe12f00158be8606093d07cdbc0d583a0af79370cf1d9c16b5f35a306bae7f545a5c774ea253509b7 intel-microcode2ucode.c"
ee60f968acab4067f5660449eabae533b5d3996cd59fd4b69d0e23e0b264da216ab6e6ccd554222cf355fc14dbd348562a2d36a87a60f1f54433603e04998cd1 intel-microcode2ucode.c"

47
non-free/intel-ucode/intel-microcode2ucode.c
View File

@ -1,13 +1,8 @@
/*
* Convert Intel microcode.dat into individual ucode files
* named: intel-ucode/$family-$model-$stepping
* Convert Intel microcode.dat into a single binary microcode.bin file
*
* The subdir intel-ucode/ is created in the current working
* directory. We get multiple ucodes in the same file, so they
* are appended to an existing file. Make sure the directory
* is empty before every run of the converter.
*
* Kay Sievers <kay.sievers@vrfy.org>
* Based on code by Kay Sievers <kay.sievers@vrfy.org>
* Changed to create a single file by Thomas Bächler <thomas@archlinux.org>
*/
@ -48,7 +43,7 @@ union mcbuf {
int main(int argc, char *argv[])
{
char *filename = "/lib/firmware/microcode.dat";
const char *filename = "/lib/firmware/microcode.dat";
FILE *f;
char line[LINE_MAX];
char buf[4000000];
@ -89,12 +84,17 @@ int main(int argc, char *argv[])
if (bufsize < sizeof(struct microcode_header_intel))
goto out;
mkdir("intel-ucode", 0750);
f = fopen("microcode.bin", "we");
if (f == NULL) {
printf("open microcode.bin: %m\n");
rc = EXIT_FAILURE;
goto out;
}
start = 0;
for (;;) {
size_t size;
unsigned int family, model, stepping;
unsigned int family, model, stepping, type;
unsigned int year, month, day;
mc = (union mcbuf *) &buf[start];
@ -118,45 +118,38 @@ int main(int argc, char *argv[])
* 16-19 extended model
* 20-27 extended family
*/
family = (mc->hdr.sig >> 8) & 0xf;
if (family == 0xf)
family += (mc->hdr.sig >> 20) & 0xff;
stepping = mc->hdr.sig & 0x0f;
model = (mc->hdr.sig >> 4) & 0x0f;
family = (mc->hdr.sig >> 8) & 0x0f;
type = (mc->hdr.sig >> 12) & 0x0f;
if (family == 0x06)
model += ((mc->hdr.sig >> 16) & 0x0f) << 4;
stepping = mc->hdr.sig & 0x0f;
if (family == 0x0f)
family += (mc->hdr.sig >> 20) & 0xff;
year = mc->hdr.date & 0xffff;
month = mc->hdr.date >> 24;
day = (mc->hdr.date >> 16) & 0xff;
asprintf(&filename, "intel-ucode/%02x-%02x-%02x", family, model, stepping);
printf("\n");
printf("%s\n", filename);
printf("signature: 0x%02x\n", mc->hdr.sig);
printf("signature: 0x%02x (stepping %d, model %d, family %d, type %d)\n",
mc->hdr.sig, stepping, model, family, type);
printf("flags: 0x%02x\n", mc->hdr.pf);
printf("revision: 0x%02x\n", mc->hdr.rev);
printf("date: %04x-%02x-%02x\n", year, month, day);
printf("size: %zu\n", size);
f = fopen(filename, "ae");
if (f == NULL) {
printf("open %s: %m\n", filename);
rc = EXIT_FAILURE;
goto out;
}
if (fwrite(mc, size, 1, f) != 1) {
printf("write %s: %m\n", filename);
printf("write microcode.bin: %m\n");
rc = EXIT_FAILURE;
goto out;
}
fclose(f);
free(filename);
start += size;
if (start >= bufsize)
break;
}
fclose(f);
printf("\n");
out:
return rc;