Attachment #513646 for bug #643786

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LICENSE="intel-ucode"
SLOT="0"
KEYWORDS="-* amd64 x86"
IUSE="initramfs scan-system +split-ucode"
REQUIRED_USE="|| ( initramfs split-ucode )"

DEPEND="initramfs? ( sys-apps/iucode_tool )
	scan-system? ( sys-apps/iucode_tool )"
RDEPEND="!<sys-apps/microcode-ctl-1.17-r2" #268586

S=${WORKDIR}

src_compile() {
	if use initramfs; then
		if use scan-system; then
			iucode_tool --scan-system --write-earlyfw=initramfs.cpio intel-ucode/ || die "Failed to generate initramfs cpio archive"
		else
			iucode_tool --write-earlyfw=initramfs.cpio intel-ucode/ || die "Failed to generate initramfs cpio archive"
		fi
	fi
}

src_install() {
	insinto /lib/firmware/intel-ucode
	if use initramfs; then
		doins initramfs.cpio
	fi
	if use split-ucode; then
		if use scan-system; then
			local re_signature="^iucode_tool: system has processor\(s\) with signature (0x[0-9a-f]+)$"
			local re_bundle="^microcode bundle ([0-9]+): (.*)$"
			local re_suitable="^([0-9]+)/([0-9]+): sig (0x[0-9a-f]+), pf_mask (0x[0-9a-f]+), ([0-9]{4}-[0-9]{2}-[0-9]{2}), rev (0x[0-9a-f]+), size ([0-9]+)$"
			local -A bundles=()
			local -a suitable=()
			local line index

			# Identify suitable bundles
			while read -r line; do
				if [[ $line =~ $re_signature ]]; then
					elog "Signature of detected processor(s): ${BASH_REMATCH[1]}"
				elif [[ $line =~ $re_bundle ]]; then
					bundles+=(["${BASH_REMATCH[1]}"]="${BASH_REMATCH[2]}")
				elif [[ $line =~ $re_suitable ]]; then
					index="${BASH_REMATCH[1]}"
					index="${index#"${index%%[!0]*}"}" # strip leading zero(s) from bundle index
					if [[ -n "${bundles[$index]+set}" ]]; then
						elog "Suitable microcode bundle: ${index} (${bundles[$index]})"
						suitable+=("$index")
					else
						ewarn "Ignoring invalid microcode bundle '${index}'"
					fi
				fi
			done < <(iucode_tool --scan-system --list intel-ucode/* 2>&1) # signature is written to stderr
			elog ""

			# Suitable bundles identified?
			if (( ${#suitable[@]} == 0 )); then
				ewarn "Unable to identify suitable microcode bundle(s)"
				ewarn "Please install without USE flag 'scan-system' instead"
				die "Failed to identify suitable microcode bundle(s)"
			fi

			# Install identified bundles
			insinto /lib/firmware/intel-ucode
			for index in ${suitable[@]}; do
				doins "${bundles[$index]}"
			done
		else
			doins intel-ucode/*
		fi
	fi
}

pkg_postinst() {
	if use initramfs; then
		elog "CPIO archive was installed to '/lib/firmware/intel-ucode/initramfs.cpio'"
		elog "This archive needs to be prepended to an existing initramfs image:"
		elog "# cat /lib/firmware/intel-ucode/initramfs.cpio existing-image > combined-image"
		elog ""
	fi
	if use split-ucode; then
		elog "Split binary ucode files were installed to '/lib/firmware/intel-ucode'"
		elog ""
	fi
	elog "Please refer to the Gentoo Wiki for more detailed information:"
	elog "https://wiki.gentoo.org/wiki/Intel_microcode"
}

Lines 8-13 Link Here

(-)a/sys-firmware/intel-microcode/metadata.xml (+1 lines)
8	<use>	8	<use>
9	<flag name="initramfs">install a small initramfs for use with CONFIG_MICROCODE_EARLY</flag>	9	<flag name="initramfs">install a small initramfs for use with CONFIG_MICROCODE_EARLY</flag>
10	<flag name="monolithic">install the large text microcode.dat (used by older kernels via microcode_ctl)</flag>	10	<flag name="monolithic">install the large text microcode.dat (used by older kernels via microcode_ctl)</flag>
		11	<flag name="scan-system">scan system and only install suitable/applicable microcode</flag>
11	<flag name="split-ucode">install the split binary ucode files (used by the kernel directly)</flag>	12	<flag name="split-ucode">install the split binary ucode files (used by the kernel directly)</flag>
12	</use>	13	</use>
13	</pkgmetadata>	14	</pkgmetadata>

Return to bug 643786

Lines 18-39 SRC_URI="mirror://gentoo/microcode-${PV} Link Here

(-)a/sys-firmware/intel-microcode/intel-microcode-20171117_p20171215.ebuild (-7 / +72 lines)
18	LICENSE="intel-ucode"	18	LICENSE="intel-ucode"
19	SLOT="0"	19	SLOT="0"
20	KEYWORDS="-* amd64 x86"	20	KEYWORDS="-* amd64 x86"
21	IUSE="initramfs +split-ucode"	21	IUSE="initramfs scan-system +split-ucode"
22	REQUIRED_USE="\|\| ( initramfs split-ucode )"	22	REQUIRED_USE="\|\| ( initramfs split-ucode )"
23		23
24	DEPEND="initramfs? ( sys-apps/iucode_tool )"	24	DEPEND="initramfs? ( sys-apps/iucode_tool )
		25	scan-system? ( sys-apps/iucode_tool )"
25	RDEPEND="!<sys-apps/microcode-ctl-1.17-r2" #268586	26	RDEPEND="!<sys-apps/microcode-ctl-1.17-r2" #268586
26		27
27	S=${WORKDIR}	28	S=${WORKDIR}
28		29
29	src_compile() {	30	src_compile() {
30	if use initramfs ; then	31	if use initramfs; then
31	iucode_tool --write-earlyfw=microcode.cpio intel-ucode/ \|\| die	32	if use scan-system; then
		33	iucode_tool --scan-system --write-earlyfw=initramfs.cpio intel-ucode/ \|\| die "Failed to generate initramfs cpio archive"
		34	else
		35	iucode_tool --write-earlyfw=initramfs.cpio intel-ucode/ \|\| die "Failed to generate initramfs cpio archive"
		36	fi
32	fi	37	fi
33	}	38	}
34		39
35	src_install() {	40	src_install() {
36	insinto /lib/firmware	41	insinto /lib/firmware/intel-ucode
37	use initramfs && doins microcode.cpio	42	if use initramfs; then
38	use split-ucode && doins -r intel-ucode	43	doins initramfs.cpio
		44	fi
		45	if use split-ucode; then
		46	if use scan-system; then
		47	local re_signature="^iucode_tool: system has processor\(s\) with signature (0x[0-9a-f]+)$"
		48	local re_bundle="^microcode bundle ([0-9]+): (.*)$"
		49	local re_suitable="^([0-9]+)/([0-9]+): sig (0x[0-9a-f]+), pf_mask (0x[0-9a-f]+), ([0-9]{4}-[0-9]{2}-[0-9]{2}), rev (0x[0-9a-f]+), size ([0-9]+)$"
		50	local -A bundles=()
		51	local -a suitable=()
		52	local line index
		53
		54	# Identify suitable bundles
		55	while read -r line; do
		56	if [[ $line =~ $re_signature ]]; then
		57	elog "Signature of detected processor(s): ${BASH_REMATCH[1]}"
		58	elif [[ $line =~ $re_bundle ]]; then
		59	bundles+=(["${BASH_REMATCH[1]}"]="${BASH_REMATCH[2]}")
		60	elif [[ $line =~ $re_suitable ]]; then
		61	index="${BASH_REMATCH[1]}"
		62	index="${index#"${index%%[!0]*}"}" # strip leading zero(s) from bundle index
		63	if [[ -n "${bundles[$index]+set}" ]]; then
		64	elog "Suitable microcode bundle: ${index} (${bundles[$index]})"
		65	suitable+=("$index")
		66	else
		67	ewarn "Ignoring invalid microcode bundle '${index}'"
		68	fi
		69	fi
		70	done < <(iucode_tool --scan-system --list intel-ucode/* 2>&1) # signature is written to stderr
		71	elog ""
		72
		73	# Suitable bundles identified?
		74	if (( ${#suitable[@]} == 0 )); then
		75	ewarn "Unable to identify suitable microcode bundle(s)"
		76	ewarn "Please install without USE flag 'scan-system' instead"
		77	die "Failed to identify suitable microcode bundle(s)"
		78	fi
		79
		80	# Install identified bundles
		81	insinto /lib/firmware/intel-ucode
		82	for index in ${suitable[@]}; do
		83	doins "${bundles[$index]}"
		84	done
		85	else
		86	doins intel-ucode/*
		87	fi
		88	fi
		89	}
		90
		91	pkg_postinst() {
		92	if use initramfs; then
		93	elog "CPIO archive was installed to '/lib/firmware/intel-ucode/initramfs.cpio'"
		94	elog "This archive needs to be prepended to an existing initramfs image:"
		95	elog "# cat /lib/firmware/intel-ucode/initramfs.cpio existing-image > combined-image"
		96	elog ""
		97	fi
		98	if use split-ucode; then
		99	elog "Split binary ucode files were installed to '/lib/firmware/intel-ucode'"
		100	elog ""
		101	fi
		102	elog "Please refer to the Gentoo Wiki for more detailed information:"
		103	elog "https://wiki.gentoo.org/wiki/Intel_microcode"
39	}	104	}