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263 lines
9.1 KiB
263 lines
9.1 KiB
# Copyright 1999-2020 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI="7"
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inherit linux-info toolchain-funcs mount-boot
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# Find updates by searching and clicking the first link (hopefully it's the one):
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# https://www.intel.com/content/www/us/en/search.html?keyword=Processor+Microcode+Data+File
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COLLECTION_SNAPSHOT="${PV##*_p}"
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INTEL_SNAPSHOT="${PV/_p*}"
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#NUM="28087"
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#https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=${NUM}
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#https://downloadmirror.intel.com/${NUM}/eng/microcode-${INTEL_SNAPSHOT}.tgz
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DESCRIPTION="Intel IA32/IA64 microcode update data"
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HOMEPAGE="https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files http://inertiawar.com/microcode/"
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SRC_URI="https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/archive/microcode-${INTEL_SNAPSHOT}.tar.gz
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https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/raw/437f382b1be4412b9d03e2bbdcda46d83d581242/intel-ucode/06-4e-03 -> intel-ucode-sig_0x406e3-rev_0xd6.bin
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https://dev.gentoo.org/~whissi/dist/intel-microcode/intel-microcode-collection-${COLLECTION_SNAPSHOT}.tar.xz"
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LICENSE="intel-ucode"
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SLOT="0"
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KEYWORDS="-* amd64 x86"
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IUSE="hostonly initramfs +split-ucode vanilla"
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REQUIRED_USE="|| ( initramfs split-ucode )"
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BDEPEND=">=sys-apps/iucode_tool-2.3"
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# !<sys-apps/microcode-ctl-1.17-r2 due to bug #268586
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RDEPEND="hostonly? ( sys-apps/iucode_tool )"
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RESTRICT="binchecks bindist mirror strip"
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S=${WORKDIR}
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# Blacklist bad microcode here.
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# 0x000406f1 aka 06-4f-01 aka CPUID 406F1 require newer microcode loader
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MICROCODE_BLACKLIST_DEFAULT="-s !0x000406f1"
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# https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31
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MICROCODE_BLACKLIST_DEFAULT+=" -s !0x000406e3,0xc0,eq:0x00dc"
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# https://bugs.gentoo.org/722768
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MICROCODE_BLACKLIST_DEFAULT+=" -s !0x000406e3,0xc0,eq:0x00da"
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# https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/commit/49bb67f32a2e3e631ba1a9a73da1c52e1cac7fd9
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MICROCODE_BLACKLIST_DEFAULT+=" -s !0x000806c1,0x80,eq:0x0068"
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# In case we want to set some defaults ...
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MICROCODE_SIGNATURES_DEFAULT=""
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# Advanced users only!
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# Set MIRCOCODE_SIGNATURES to merge with:
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# only current CPU: MICROCODE_SIGNATURES="-S"
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# only specific CPU: MICROCODE_SIGNATURES="-s 0x00000f4a -s 0x00010676"
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# exclude specific CPU: MICROCODE_SIGNATURES="-s !0x00000686"
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pkg_pretend() {
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use initramfs && mount-boot_pkg_pretend
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}
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src_prepare() {
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default
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if cd Intel-Linux-Processor-Microcode-Data* &>/dev/null; then
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# new tarball format from GitHub
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mv * ../ || die "Failed to move Intel-Linux-Processor-Microcode-Data*"
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cd .. || die
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rm -r Intel-Linux-Processor-Microcode-Data* || die
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fi
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mkdir intel-ucode-old || die
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cp "${DISTDIR}"/intel-ucode-sig_0x406e3-rev_0xd6.bin "${S}"/intel-ucode-old/ || die
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# Prevent "invalid file format" errors from iucode_tool
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rm -f "${S}"/intel-ucod*/list || die
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}
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src_install() {
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# This will take ALL of the upstream microcode sources:
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# - microcode.dat
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# - intel-ucode/
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# In some cases, they have not contained the same content (eg the directory has newer stuff).
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MICROCODE_SRC=(
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"${S}"/intel-ucode/
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"${S}"/intel-ucode-with-caveats/
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"${S}"/intel-ucode-old/
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)
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# Allow users who are scared about microcode updates not included in Intel's official
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# microcode tarball to opt-out and comply with Intel marketing
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if ! use vanilla; then
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MICROCODE_SRC+=( "${S}"/intel-microcode-collection-${COLLECTION_SNAPSHOT} )
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fi
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# These will carry into pkg_preinst via env saving.
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: ${MICROCODE_BLACKLIST=${MICROCODE_BLACKLIST_DEFAULT}}
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: ${MICROCODE_SIGNATURES=${MICROCODE_SIGNATUES_DEFAULT}}
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opts=(
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${MICROCODE_BLACKLIST}
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${MICROCODE_SIGNATURES}
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# be strict about what we are doing
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--overwrite
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--strict-checks
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--no-ignore-broken
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# we want to install latest version
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--no-downgrade
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# show everything we find
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--list-all
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# show what we selected
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--list
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)
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# The earlyfw cpio needs to be in /boot because it must be loaded before
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# rootfs is mounted.
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use initramfs && dodir /boot && opts+=( --write-earlyfw="${ED}/boot/intel-uc.img" )
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keepdir /lib/firmware/intel-ucode
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opts+=( --write-firmware="${ED}/lib/firmware/intel-ucode" )
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iucode_tool \
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"${opts[@]}" \
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"${MICROCODE_SRC[@]}" \
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|| die "iucode_tool ${opts[@]} ${MICROCODE_SRC[@]}"
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dodoc releasenote.md
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}
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pkg_preinst() {
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if [[ ${MICROCODE_BLACKLIST} != ${MICROCODE_BLACKLIST_DEFAULT} ]]; then
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ewarn "MICROCODE_BLACKLIST is set to \"${MICROCODE_BLACKLIST}\" instead of default \"${MICROCODE_BLACKLIST_DEFAULT}\". You are on your own!"
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fi
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if [[ ${MICROCODE_SIGNATURES} != ${MICROCODE_SIGNATURES_DEFAULT} ]]; then
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ewarn "Package was created using advanced options:"
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ewarn "MICROCODE_SIGNATURES is set to \"${MICROCODE_SIGNATURES}\" instead of default \"${MICROCODE_SIGNATURES_DEFAULT}\"!"
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fi
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# Make sure /boot is available if needed.
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use initramfs && mount-boot_pkg_preinst
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local _initramfs_file="${ED}/boot/intel-uc.img"
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if use hostonly; then
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# While this output looks redundant we do this check to detect
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# rare cases where iucode_tool was unable to detect system's processor(s).
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local _detected_processors=$(iucode_tool --scan-system 2>&1)
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if [[ -z "${_detected_processors}" ]]; then
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ewarn "Looks like iucode_tool was unable to detect any processor!"
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else
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einfo "Only installing ucode(s) for ${_detected_processors#iucode_tool: system has } due to USE=hostonly ..."
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fi
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opts=(
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--scan-system
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# be strict about what we are doing
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--overwrite
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--strict-checks
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--no-ignore-broken
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# we want to install latest version
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--no-downgrade
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# show everything we find
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--list-all
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# show what we selected
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--list
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)
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# The earlyfw cpio needs to be in /boot because it must be loaded before
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# rootfs is mounted.
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use initramfs && opts+=( --write-earlyfw=${_initramfs_file} )
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if use split-ucode; then
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opts+=( --write-firmware="${ED}/lib/firmware/intel-ucode" )
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fi
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opts+=( "${ED}/lib/firmware/intel-ucode-temp" )
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mv "${ED}"/lib/firmware/intel-ucode{,-temp} || die
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keepdir /lib/firmware/intel-ucode
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iucode_tool "${opts[@]}" || die "iucode_tool ${opts[@]}"
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rm -r "${ED}"/lib/firmware/intel-ucode-temp || die
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elif ! use split-ucode; then # hostonly disabled
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rm -r "${ED}"/lib/firmware/intel-ucode || die
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fi
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# Because it is possible that this package will install not one single file
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# due to user selection which is still somehow unexpected we add the following
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# check to inform user so that the user has at least a chance to detect
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# a problem/invalid select.
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local _has_installed_something=
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if use initramfs && [[ -s "${_initramfs_file}" ]]; then
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_has_installed_something="yes"
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elif use split-ucode; then
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_has_installed_something=$(find "${ED}/lib/firmware/intel-ucode" -maxdepth 0 -not -empty -exec echo yes \;)
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fi
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if use hostonly && [[ -n "${_has_installed_something}" ]]; then
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elog "You only installed ucode(s) for all currently available (=online)"
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elog "processor(s). Remember to re-emerge this package whenever you"
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elog "change the system's processor model."
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elog ""
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elif [[ -z "${_has_installed_something}" ]]; then
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ewarn "WARNING:"
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if [[ ${MICROCODE_SIGNATURES} != ${MICROCODE_SIGNATURES_DEFAULT} ]]; then
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ewarn "No ucode was installed! Because you have created this package"
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ewarn "using MICROCODE_SIGNATURES variable please double check if you"
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ewarn "have an invalid select."
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ewarn "It's rare but it is also possible that just no ucode update"
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ewarn "is available for your processor(s). In this case it is safe"
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ewarn "to ignore this warning."
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else
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ewarn "No ucode was installed! It's rare but it is also possible"
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ewarn "that just no ucode update is available for your processor(s)."
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ewarn "In this case it is safe to ignore this warning."
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fi
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ewarn ""
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if use hostonly; then
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ewarn "Unset \"hostonly\" USE flag to install all available ucodes."
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ewarn ""
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fi
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fi
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}
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pkg_prerm() {
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# Make sure /boot is mounted so that we can remove /boot/intel-uc.img!
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use initramfs && mount-boot_pkg_prerm
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}
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pkg_postrm() {
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# Don't forget to umount /boot if it was previously mounted by us.
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use initramfs && mount-boot_pkg_postrm
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}
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pkg_postinst() {
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# Don't forget to umount /boot if it was previously mounted by us.
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use initramfs && mount-boot_pkg_postinst
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# We cannot give detailed information if user is affected or not:
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# If MICROCODE_BLACKLIST wasn't modified, user can still use MICROCODE_SIGNATURES
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# to to force a specific, otherwise blacklisted, microcode. So we
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# only show a generic warning based on running kernel version:
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if kernel_is -lt 4 14 34; then
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ewarn "${P} contains microcode updates which require"
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ewarn "additional kernel patches which aren't yet included in kernel <4.14.34."
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ewarn "Loading such a microcode through kernel interface from an unpatched kernel"
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ewarn "can crash your system!"
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ewarn ""
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ewarn "Those microcodes are blacklisted per default. However, if you have altered"
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ewarn "MICROCODE_BLACKLIST or MICROCODE_SIGNATURES, you maybe have unintentionally"
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ewarn "re-enabled those microcodes...!"
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ewarn ""
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ewarn "Check \"${EROOT}/usr/share/doc/${PN}-*/releasenot*\" if your microcode update"
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ewarn "requires additional kernel patches or not."
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fi
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}
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