parent
87872ce36e
commit
8c3e8e7de8
@ -0,0 +1 @@ |
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DIST microcode-20130808.tgz 717772 SHA256 d5dd1977992308d7e0244993cf5fbed54a396df2f8f1533c3dbb37b3530160a7 SHA512 680e78ebb9832ef4273d48da49742392eda72aa41b4e2e5c3636ac08b7c515c64dc844c41713a9ac3fbfaf42b4e2b6ef15f2737ad4a336ebfc0c0a6f9570e8ca WHIRLPOOL b8501b3890867b73c84fe288d45b0cfe066dc63f5b5add6b19e15101e35c0dba42fc545f6b3e3662b04897ec38b4adf9789b34f4bfae0deee4c19d219e3cb580 |
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/*
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* Convert Intel microcode.dat into individual ucode files |
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* named: intel-ucode/$family-$model-$stepping |
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* |
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* The subdir intel-ucode/ is created in the current working |
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* directory. We get multiple ucodes in the same file, so they |
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* are appended to an existing file. Make sure the directory |
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* is empty before every run of the converter. |
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* |
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* Kay Sievers <kay.sievers@vrfy.org> |
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*/ |
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#ifndef _GNU_SOURCE |
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# define _GNU_SOURCE 1 |
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#endif |
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#include <stdio.h> |
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#include <unistd.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include <limits.h> |
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#include <stdbool.h> |
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#include <inttypes.h> |
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#include <fcntl.h> |
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#include <errno.h> |
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#include <sys/stat.h> |
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struct microcode_header_intel { |
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unsigned int hdrver; |
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unsigned int rev; |
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unsigned int date; |
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unsigned int sig; |
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unsigned int cksum; |
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unsigned int ldrver; |
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unsigned int pf; |
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unsigned int datasize; |
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unsigned int totalsize; |
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unsigned int reserved[3]; |
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}; |
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union mcbuf { |
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struct microcode_header_intel hdr; |
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unsigned int i[0]; |
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char c[0]; |
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}; |
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int main(int argc, char *argv[]) |
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{ |
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char *filename = "/lib/firmware/microcode.dat"; |
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FILE *f; |
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char line[LINE_MAX]; |
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char buf[4000000]; |
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union mcbuf *mc; |
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size_t bufsize, count, start; |
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int rc = EXIT_SUCCESS; |
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if (argv[1] != NULL) |
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filename = argv[1]; |
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count = 0; |
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mc = (union mcbuf *) buf; |
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f = fopen(filename, "re"); |
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if (f == NULL) { |
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printf("open %s: %m\n", filename); |
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rc = EXIT_FAILURE; |
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goto out; |
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} |
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while (fgets(line, sizeof(line), f) != NULL) { |
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if (sscanf(line, "%x, %x, %x, %x", |
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&mc->i[count], |
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&mc->i[count + 1], |
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&mc->i[count + 2], |
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&mc->i[count + 3]) != 4) |
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continue; |
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count += 4; |
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} |
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fclose(f); |
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bufsize = count * sizeof(int); |
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printf("%s: %lu(%luk) bytes, %zu integers\n", |
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filename, |
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bufsize, |
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bufsize / 1024, |
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count); |
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if (bufsize < sizeof(struct microcode_header_intel)) |
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goto out; |
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mkdir("intel-ucode", 0750); |
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start = 0; |
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for (;;) { |
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size_t size; |
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unsigned int family, model, stepping; |
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unsigned int year, month, day; |
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mc = (union mcbuf *) &buf[start]; |
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if (mc->hdr.totalsize) |
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size = mc->hdr.totalsize; |
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else |
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size = 2000 + sizeof(struct microcode_header_intel); |
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if (mc->hdr.ldrver != 1 || mc->hdr.hdrver != 1) { |
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printf("unknown version/format:\n"); |
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rc = EXIT_FAILURE; |
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break; |
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} |
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/*
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* 0- 3 stepping |
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* 4- 7 model |
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* 8-11 family |
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* 12-13 type |
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* 16-19 extended model |
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* 20-27 extended family |
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*/ |
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family = (mc->hdr.sig >> 8) & 0xf; |
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if (family == 0xf) |
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family += (mc->hdr.sig >> 20) & 0xff; |
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model = (mc->hdr.sig >> 4) & 0x0f; |
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if (family == 0x06) |
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model += ((mc->hdr.sig >> 16) & 0x0f) << 4; |
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stepping = mc->hdr.sig & 0x0f; |
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year = mc->hdr.date & 0xffff; |
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month = mc->hdr.date >> 24; |
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day = (mc->hdr.date >> 16) & 0xff; |
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asprintf(&filename, "intel-ucode/%02x-%02x-%02x", family, model, stepping); |
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printf("\n"); |
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printf("%s\n", filename); |
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printf("signature: 0x%02x\n", mc->hdr.sig); |
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printf("flags: 0x%02x\n", mc->hdr.pf); |
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printf("revision: 0x%02x\n", mc->hdr.rev); |
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printf("date: %04x-%02x-%02x\n", year, month, day); |
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printf("size: %zu\n", size); |
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f = fopen(filename, "ae"); |
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if (f == NULL) { |
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printf("open %s: %m\n", filename); |
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rc = EXIT_FAILURE; |
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goto out; |
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} |
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if (fwrite(mc, size, 1, f) != 1) { |
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printf("write %s: %m\n", filename); |
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rc = EXIT_FAILURE; |
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goto out; |
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} |
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fclose(f); |
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free(filename); |
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start += size; |
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if (start >= bufsize) |
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break; |
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} |
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printf("\n"); |
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out: |
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return rc; |
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} |
@ -0,0 +1,45 @@ |
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# Copyright 1999-2013 Gentoo Foundation |
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# Distributed under the terms of the GNU General Public License v2 |
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# $Header: $Id$ |
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EAPI="5" |
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inherit toolchain-funcs |
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# Find updates by searching and clicking the first link (hopefully it's the one): |
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# http://www.intel.com/content/www/us/en/search.html?keyword=Processor+Microcode+Data+File |
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NUM="23082" |
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DESCRIPTION="Intel IA32 microcode update data" |
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HOMEPAGE="https://fedorahosted.org/microcode_ctl/ http://inertiawar.com/microcode/ https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=${NUM}" |
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SRC_URI="http://downloadmirror.intel.com/${NUM}/eng/microcode-${PV}.tgz" |
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LICENSE="intel-ucode" |
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SLOT="0" |
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KEYWORDS="-* ~amd64 ~x86" |
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IUSE="" |
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RDEPEND="!<sys-apps/microcode-ctl-1.17-r2" #268586 |
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S=${WORKDIR} |
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src_unpack() { |
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default |
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cp "${FILESDIR}"/intel-microcode2ucode.c ./ || die |
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} |
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src_compile() { |
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tc-env_build emake intel-microcode2ucode |
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./intel-microcode2ucode microcode.dat || die |
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} |
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src_install() { |
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insinto /lib/firmware |
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doins -r microcode.dat intel-ucode |
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} |
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pkg_postinst() { |
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elog "The microcode available for Intel CPUs has been updated. You'll need" |
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elog "to reload the code into your processor. If you're using the init.d:" |
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elog "/etc/init.d/microcode_ctl restart" |
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} |
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