diff --git a/packages/linux-firmware/intel-ucode/package.mk b/packages/linux-firmware/intel-ucode/package.mk new file mode 100644 index 0000000000..21654a63e6 --- /dev/null +++ b/packages/linux-firmware/intel-ucode/package.mk @@ -0,0 +1,54 @@ +################################################################################ +# This file is part of LibreELEC - https://libreelec.tv +# Copyright (C) 2016 Team LibreELEC +# +# LibreELEC is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 2 of the License, or +# (at your option) any later version. +# +# LibreELEC is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LibreELEC. If not, see . +################################################################################ + +PKG_NAME="intel-ucode" +PKG_VERSION="20160714" +PKG_REV="1" +PKG_ARCH="x86_64" +PKG_LICENSE="other" +PKG_SITE="https://downloadcenter.intel.com/search?keyword=linux+microcode" +PKG_URL="https://downloadmirror.intel.com/26156/eng/microcode-${PKG_VERSION}.tgz" +PKG_DEPENDS_TARGET="toolchain intel-ucode:host" +PKG_PRIORITY="optional" +PKG_SECTION="linux-firmware" +PKG_SHORTDESC="intel-ucode: Intel CPU microcodes" +PKG_LONGDESC="intel-ucode: Intel CPU microcodes" + +PKG_IS_ADDON="no" +PKG_AUTORECONF="no" + +unpack() { + mkdir -p $ROOT/$PKG_BUILD + tar xf $SOURCES/$PKG_NAME/$PKG_NAME-$PKG_VERSION.tgz -C $ROOT/$PKG_BUILD +} + +make_host() { + $CC $CFLAGS -o intel-microcode2ucode intel-microcode2ucode.c +} + +makeinstall_host() { + cp intel-microcode2ucode $ROOT/$TOOLCHAIN/bin/ +} + +make_target() { + intel-microcode2ucode ./microcode.dat +} + +makeinstall_target() { + : +} diff --git a/packages/linux-firmware/intel-ucode/sources/intel-microcode2ucode.c b/packages/linux-firmware/intel-ucode/sources/intel-microcode2ucode.c new file mode 100644 index 0000000000..c1660fae38 --- /dev/null +++ b/packages/linux-firmware/intel-ucode/sources/intel-microcode2ucode.c @@ -0,0 +1,154 @@ +/* + * Convert Intel microcode.dat into a single binary microcode.bin file + * + * Based on code by Kay Sievers + * Changed to create a single file by Thomas Bächler + */ + + +#ifndef _GNU_SOURCE +# define _GNU_SOURCE 1 +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct microcode_header_intel { + unsigned int hdrver; + unsigned int rev; + unsigned int date; + unsigned int sig; + unsigned int cksum; + unsigned int ldrver; + unsigned int pf; + unsigned int datasize; + unsigned int totalsize; + unsigned int reserved[3]; +}; + +union mcbuf { + struct microcode_header_intel hdr; + unsigned int i[0]; + char c[0]; +}; + +int main(int argc, char *argv[]) +{ + const char *filename = "/lib/firmware/microcode.dat"; + FILE *f; + char line[LINE_MAX]; + char buf[4000000]; + union mcbuf *mc; + size_t bufsize, count, start; + int rc = EXIT_SUCCESS; + + if (argv[1] != NULL) + filename = argv[1]; + + count = 0; + mc = (union mcbuf *) buf; + f = fopen(filename, "re"); + if (f == NULL) { + printf("open %s: %m\n", filename); + rc = EXIT_FAILURE; + goto out; + } + + while (fgets(line, sizeof(line), f) != NULL) { + if (sscanf(line, "%x, %x, %x, %x", + &mc->i[count], + &mc->i[count + 1], + &mc->i[count + 2], + &mc->i[count + 3]) != 4) + continue; + count += 4; + } + fclose(f); + + bufsize = count * sizeof(int); + printf("%s: %lu(%luk) bytes, %zu integers\n", + filename, + bufsize, + bufsize / 1024, + count); + + if (bufsize < sizeof(struct microcode_header_intel)) + goto out; + + 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 year, month, day; + + mc = (union mcbuf *) &buf[start]; + + if (mc->hdr.totalsize) + size = mc->hdr.totalsize; + else + size = 2000 + sizeof(struct microcode_header_intel); + + if (mc->hdr.ldrver != 1 || mc->hdr.hdrver != 1) { + printf("unknown version/format:\n"); + rc = EXIT_FAILURE; + break; + } + + /* + * 0- 3 stepping + * 4- 7 model + * 8-11 family + * 12-13 type + * 16-19 extended model + * 20-27 extended family + */ + family = (mc->hdr.sig >> 8) & 0xf; + if (family == 0xf) + family += (mc->hdr.sig >> 20) & 0xff; + model = (mc->hdr.sig >> 4) & 0x0f; + if (family == 0x06) + model += ((mc->hdr.sig >> 16) & 0x0f) << 4; + stepping = mc->hdr.sig & 0x0f; + + year = mc->hdr.date & 0xffff; + month = mc->hdr.date >> 24; + day = (mc->hdr.date >> 16) & 0xff; + + printf("\n"); + printf("signature: 0x%02x\n", mc->hdr.sig); + 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); + + if (fwrite(mc, size, 1, f) != 1) { + printf("write microcode.bin: %m\n"); + rc = EXIT_FAILURE; + goto out; + } + + start += size; + if (start >= bufsize) + break; + } + fclose(f); + printf("\n"); +out: + return rc; +}