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213 lines
7.1 KiB
213 lines
7.1 KiB
# Copyright 1999-2018 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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EAPI="6"
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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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# http://www.intel.com/content/www/us/en/search.html?keyword=Processor+Microcode+Data+File
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COLLECTION_SNAPSHOT="20180527"
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INTEL_SNAPSHOT="20180425"
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NUM="27776"
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DESCRIPTION="Intel IA32/IA64 microcode update data"
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HOMEPAGE="http://inertiawar.com/microcode/ https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=${NUM}"
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SRC_URI="https://downloadmirror.intel.com/${NUM}/eng/microcode-${INTEL_SNAPSHOT}.tgz
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https://dev.gentoo.org/~whissi/dist/intel-microcode/intel-microcode-collection-${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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DEPEND="sys-apps/iucode_tool"
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# !<sys-apps/microcode-ctl-1.17-r2 due to bug #268586
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RDEPEND="!<sys-apps/microcode-ctl-1.17-r2
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hostonly? ( sys-apps/iucode_tool )"
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S=${WORKDIR}
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# Blacklist bad microcode here.
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# 0x000406f1 aka 06-4f-01 aka CPUID 406F1 require newer microcode loader
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MICROCODE_BLACKLIST_DEFAULT="-s !0x000406f1"
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MICROCODE_BLACKLIST="${MICROCODE_BLACKLIST:=${MICROCODE_BLACKLIST_DEFAULT}}"
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# In case we want to set some defaults ...
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MICROCODE_SIGNATURES_DEFAULT=""
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# Advanced users only:
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# merge with:
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# only current CPU: MICROCODE_SIGNATURES="-S"
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# only specific CPU: MICROCODE_SIGNATURES="-s 0x00000f4a -s 0x00010676"
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# exclude specific CPU: MICROCODE_SIGNATURES="-s !0x00000686"
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MICROCODE_SIGNATURES="${MICROCODE_SIGNATURES:=${MICROCODE_SIGNATURES_DEFAULT}}"
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pkg_pretend() {
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if [[ "${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}" != "${MICROCODE_SIGNATURES_DEFAULT}" ]]; then
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ewarn "The user has opted in for advanced use:"
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ewarn "MICROCODE_SIGNATURES is set to \"${MICROCODE_SIGNATURES}\" instead of default \"${MICROCODE_SIGNATURES_DEFAULT}\"!"
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fi
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use initramfs && mount-boot_pkg_pretend
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}
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src_prepare() {
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default
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# Prevent "invalid file format" errors from iucode_tool
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rm -f "${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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)
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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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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="${ED%/}"/boot/intel-uc.img )
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# split location (we use a temporary location so that we are able
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# to re-run iucode_tool in pkg_preinst; use keepdir instead of dodir to carry
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# this folder to pkg_preinst to avoid an error even if no microcode was selected):
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keepdir /tmp/intel-ucode && opts+=( --write-firmware="${ED%/}"/tmp/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[@]} ${MICROCODE_SRC[@]}"
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dodoc releasenote
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}
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pkg_preinst() {
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use initramfs && mount-boot_pkg_preinst
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if use hostonly; then
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einfo "Removing ucode(s) not supported by any currently available (=online) processor(s) due to USE=hostonly ..."
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opts=(
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--scan-system
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# be strict about what we are doing
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--overwrite
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--strict-checks
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--no-ignore-broken
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# we want to install latest version
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--no-downgrade
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# show everything we find
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--list-all
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# show what we selected
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--list
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)
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# The earlyfw cpio needs to be in /boot because it must be loaded before
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# rootfs is mounted.
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use initramfs && opts+=( --write-earlyfw="${ED%/}"/boot/intel-uc.img )
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# split location:
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use split-ucode && dodir /lib/firmware/intel-ucode && opts+=( --write-firmware="${ED%/}"/lib/firmware/intel-ucode )
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iucode_tool \
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"${opts[@]}" \
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"${ED%/}"/tmp/intel-ucode \
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|| die "iucode_tool ${opts[@]} ${ED%/}/tmp/intel-ucode"
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else
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if use split-ucode; then
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# Temporary /tmp/intel-ucode will become final /lib/firmware/intel-ucode ...
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dodir /lib/firmware
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mv "${ED%/}/tmp/intel-ucode" "${ED%/}/lib/firmware" || die "Failed to install splitted ucodes!"
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fi
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fi
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# Cleanup any temporary leftovers so that we don't merge any
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# unneeded files on disk
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rm -r "${ED%/}/tmp" || die "Failed to cleanup '${ED%/}/tmp'"
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}
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pkg_prerm() {
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use initramfs && mount-boot_pkg_prerm
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}
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pkg_postrm() {
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use initramfs && mount-boot_pkg_postrm
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}
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pkg_postinst() {
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use initramfs && mount-boot_pkg_postinst
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local _has_installed_something=
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if use initramfs && [[ -s "${EROOT%/}/boot/intel-uc.img" ]]; 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=$(find "${EROOT%/}/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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ewarn "No ucode was installed! You can ignore this warning if there"
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ewarn "aren't any microcode updates available for your processor(s)."
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ewarn "But if you use MICROCODE_SIGNATURES variable please double check"
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ewarn "if you have an invalid select."
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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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# 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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