16 files changed, 1037 insertions, 0 deletions
diff --git a/debian/NEWS b/debian/NEWS
new file mode 100644
index 0000000..0780d06
--- /dev/null
+++ b/debian/NEWS
@@ -0,0 +1,36 @@
+amd64-microcode (3.20230808.1) unstable; urgency=high
+
+    This release requires *either* new-enough system firmware, *or* a
+    recent-enough Linux kernel to properly work on AMD Genoa and Bergamo
+    processors.
+
+    The firmware requirement is AGESA 1.0.0.8 or newer.
+
+    The Linux kernel requirement is a group of patches that are already
+    present in the Linux stable/LTS trees since versions: v4.19.289,
+    v5.4.250, v5.10.187, v5.15.120, v6.1.37, v6.3.11 and v6.4.1.  These
+    patches are also present in Linux v6.5-rc1.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Thu, 10 Aug 2023 09:32:37 -0300
+
+amd64-microcode (2.20141028.1) unstable; urgency=medium
+
+    This release drops support for automatically applying microcode updates
+    without a reboot.  The microcode updates can still be applied without a
+    reboot through manual action of the system administrator.
+
+    This is a defensive measure.  At this time, there are no reported
+    issues caused by the AMD microcode update itself when done outside of
+    the boot process.
+
+    However, updating only on boot works around a very elusive issue in
+    the Linux kernel microcode update driver for AMD processors, which
+    may or may not have been fixed in the latest stable/long-term
+    kernels.
+
+    It is now possible to configure how the amd64-microcode package should
+    behave through the /etc/default/amd64-microcode file.  By default, it
+    will install microcode update support to the initramfs only when
+    running in a system with an AMD processor.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Wed, 17 Dec 2014 19:17:30 -0200
diff --git a/debian/README.Debian b/debian/README.Debian
new file mode 100644
index 0000000..b0116a4
--- /dev/null
+++ b/debian/README.Debian
@@ -0,0 +1,100 @@
+amd64-microcode for Debian
+--------------------------
+
+Introduction:
+
+AMD AMD64 processors are capable of field-upgrading their control program
+(microcode).  These microcode updates correct processor errata, and are
+often important for safe, correct system operation.
+
+While most of the microcode updates fix problems that happen extremely
+rarely, there are enough updates fixing issues that would cause system
+lockup, memory corruption, or unpredictable system behavior, to warrant
+taking it seriously.
+
+Microcode updates are ephemeral: they will be lost after a processor hard
+reset or after the processor is powered off.  They must be reapplied at
+every boot and after the system wakes up from suspend to RAM or disk.
+
+Updating the processor microcode is the responsibility of the system
+firmware (BIOS or EFI).  However, not all vendors will release timely
+updates for their firmware when AMD releases updated microcode, and most
+users don't update their system firmware in a timely fashion (or at all)
+anyway.
+
+The end result is that, unless some other method of distributing microcode
+updates is in place, the processor in many systems will be running with
+outdated microcode, increasing the chances of incorrect system operation.
+
+Debian can apply microcode updates to the system processors during the
+operating system boot automatically.  This requires the use of a suitably
+configured Linux kernel 3.14 or later, and an initramfs.
+
+
+Installing microcode updates:
+
+For the Debian default kernel, it is enough to install the amd64-microcode
+package as well as the initramfs-tools package and the microcode update
+will be applied automatically at the next reboot.
+
+It is also possible to use "dracut" instead of initramfs-tools, but the
+support for early microcode updates must be enabled manually in
+dracut.conf (set the option "early_microcode=yes").  Force an update of
+the initramfs using dracut, and reboot.  Note that since Linux kernel 4.4,
+one must use dracut 044 or later.
+
+Applying the microcode updates without the use of an early initramfs is
+not automatically supported anymore, due to future safety concerns.
+However, the local administrator may trigger an immediate microcode update
+attempt at any time, at her own risk:
+
+  USING AN INITRAMFS+REBOOT IS SAFER.  DO THIS ONLY WHEN YOU KNOW BETTER:
+  as root:
+  echo 1 > /sys/devices/system/cpu/microcode/reload
+
+
+RECOVERY PROCEDURE:
+
+It is possible for a microcode update to not work well, or to not work at
+all on specific system models.  This is very rare when using the safe
+microcode update procedure described above and an up-to-date Linux kernel,
+but it has happened at least once.
+
+Should you experience problems because of the microcode update, you will
+have to bypass the microcode update process that happens during operating
+system startup (boot), and remove the amd64-microcode package until the
+underlying issue is fixed.
+
+To bypass the microcode update during system startup, you must instruct the
+boot loader (grub, lilo, etc) to pass the "dis_ucode_ldr" parameter
+(without the quotes) to the kernel.
+
+If your system uses grub (the default bootloader in Debian):
+
+  1. Access the grub menu during boot (press and hold the left "Shift"
+     key right after starting the system up if you don't see a grub menu
+     during boot);
+
+  2. Move the highlight/cursor to the kernel/boot option you want to
+     use, and press the "e" key to edit it;
+
+  3. Locate the line that starts with "linux" using the cursor
+     keys.  You must add the word "dis_ucode_ldr" (without the quotes) to
+     the end of that line;
+
+  4. Press "Ctrl+X" to start (boot) the system.  The microcode updates
+     will be skipped.
+
+After the system is running, remove or purge the amd64-microcode package.
+
+If removing/purging the package doesn't do it automatically for some
+reason, refresh the initramfs using the "update-initramfs -u" command (as
+the root user), and possibly "update-initramfs -u -k <kernel version>".
+
+"dracut" users, please refer to the dracut documentation on how to update
+the initramfs images for every installed kernel.
+
+Please report any issues caused by microcode updates to the mailing-list or
+to the Debian bug tracker.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>, 2016-04-05
diff --git a/debian/amd64-microcode.default b/debian/amd64-microcode.default
new file mode 100644
index 0000000..7254c01
--- /dev/null
+++ b/debian/amd64-microcode.default
@@ -0,0 +1,13 @@
+# Configuration script for amd64-microcode version 3
+
+#
+# initramfs helper
+#
+
+#
+# Set this to "no" to disable automatic microcode updates on boot;
+# Set this to "early" to always install microcode updates to the early initramfs
+# Set this to "auto" to autodetect mode for current system (default);
+#
+#AMD64UCODE_INITRAMFS=auto
+
diff --git a/debian/amd64-microcode.dirs b/debian/amd64-microcode.dirs
new file mode 100644
index 0000000..60f0777
--- /dev/null
+++ b/debian/amd64-microcode.dirs
@@ -0,0 +1,5 @@
+etc/default
+etc/modprobe.d
+lib/firmware/amd-ucode
+lib/firmware/amd
+lib/firmware/amdtee
diff --git a/debian/amd64-microcode.docs b/debian/amd64-microcode.docs
new file mode 100644
index 0000000..e845566
--- /dev/null
+++ b/debian/amd64-microcode.docs
@@ -0,0 +1 @@
+README
diff --git a/debian/amd64-microcode.install b/debian/amd64-microcode.install
new file mode 100644
index 0000000..07af704
--- /dev/null
+++ b/debian/amd64-microcode.install
@@ -0,0 +1,3 @@
+amd-ucode/*bin	lib/firmware/amd-ucode
+amdtee/*        lib/firmware/amdtee
+amd/*sev*bin	lib/firmware/amd
diff --git a/debian/amd64-microcode.modprobe-blacklist b/debian/amd64-microcode.modprobe-blacklist
new file mode 100644
index 0000000..1dc2c23
--- /dev/null
+++ b/debian/amd64-microcode.modprobe-blacklist
@@ -0,0 +1,3 @@
+# The microcode module attempts to apply a microcode update when
+# it autoloads.  This is not always safe, so we block it by default.
+blacklist microcode
diff --git a/debian/amd64-microcode.postinst b/debian/amd64-microcode.postinst
new file mode 100644
index 0000000..453fd98
--- /dev/null
+++ b/debian/amd64-microcode.postinst
@@ -0,0 +1,46 @@
+#!/bin/sh
+# postinst script for amd64-microcode
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <postinst> `configure' <most-recently-configured-version>
+#        * <old-postinst> `abort-upgrade' <new version>
+#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
+#          <new-version>
+#        * <postinst> `abort-remove'
+#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
+#          <failed-install-package> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see http://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+case "$1" in
+    configure)
+	# do it like udev and firmware-linux-*
+	if [ -x /usr/sbin/update-initramfs ] && [ -e /etc/initramfs-tools/initramfs.conf ] ; then
+	    update-initramfs -u && {
+		echo "amd64-microcode: microcode will be updated at next boot" >&2
+	    }
+	else
+	    echo "amd64-microcode: initramfs support missing" >&2
+	fi
+    ;;
+
+    abort-upgrade|abort-remove|abort-deconfigure)
+    ;;
+
+    *)
+        echo "postinst called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/amd64-microcode.postrm b/debian/amd64-microcode.postrm
new file mode 100644
index 0000000..c775b42
--- /dev/null
+++ b/debian/amd64-microcode.postrm
@@ -0,0 +1,42 @@
+#!/bin/sh
+# postrm script for amd64-microcode
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <postrm> `remove'
+#        * <postrm> `purge'
+#        * <old-postrm> `upgrade' <new-version>
+#        * <new-postrm> `failed-upgrade' <old-version>
+#        * <new-postrm> `abort-install'
+#        * <new-postrm> `abort-install' <old-version>
+#        * <new-postrm> `abort-upgrade' <old-version>
+#        * <disappearer's-postrm> `disappear' <overwriter>
+#          <overwriter-version>
+# for details, see http://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+case "$1" in
+    purge|remove)
+	if [ -x /usr/sbin/update-initramfs -a -e /etc/initramfs-tools/initramfs.conf ] ; then
+	    update-initramfs -u
+	fi
+    ;;
+
+    upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    ;;
+
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 0000000..d227c40
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,450 @@
+amd64-microcode (3.20240116.2) unstable; urgency=medium
+
+  * Add AMD-TEE firmware to the package (closes: #1062678)
+    + amdtee: add amd_pmf TA firmware 20230906
+  * debian: install amdtee to /lib/firmware/amdtee
+  * debian/control: update short and long descriptions
+  * debian/copyright: update with amd-pmf license
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Thu, 15 Feb 2024 16:56:06 -0300
+
+amd64-microcode (3.20240116.1) unstable; urgency=medium
+
+  * Update package data from linux-firmware 20240115-80-gb4b04a5c
+  * Updated Microcode patches:
+    + Family=0x17 Model=0x31 Stepping=0x00: Patch=0x0830107b
+    + Family=0x19 Model=0x01 Stepping=0x01: Patch=0x0a0011d3
+    + Family=0x19 Model=0x01 Stepping=0x02: Patch=0x0a001236
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Tue, 06 Feb 2024 15:35:27 -0300
+
+amd64-microcode (3.20231019.1) unstable; urgency=medium
+
+  * Update package data from linux-firmware 20231019
+  * Updated Microcode patches:
+    + Family=0x19 Model=0x11 Stepping=0x01: Patch=0x0a101144
+    + Family=0x19 Model=0x11 Stepping=0x02: Patch=0x0a101244
+    + Family=0x19 Model=0xa0 Stepping=0x02: Patch=0x0aa00213
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 21 Oct 2023 15:06:29 -0300
+
+amd64-microcode (3.20230823.1) unstable; urgency=medium
+
+  * Update package data from linux-firmware 20230919
+    * New AMD-SEV firmware from AMD upstream (20230823)
+      + Updated SEV firmware:
+        Family 19h models 00h-0fh: version 1.55 build 8
+      + New SEV firmware:
+        Family 19h models 10h-1fh: version 1.55 build 21
+  * amd-ucode: Add note on fam19h warnings.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 13 Oct 2023 02:02:47 -0300
+
+amd64-microcode (3.20230808.1.1) unstable; urgency=high
+
+  * Update package data from linux-firmware 20230804-6-gf2eb058a
+    * Fixes for CVE-2023-20569 "AMD Inception" on AMD Zen4 processors
+    (closes: #1043381)
+  * WARNING: for proper operation on AMD Genoa and Bergamo processors,
+    either up-to-date BIOS (with AGESA 1.0.0.8 or newer) or up-to-date
+    Linux kernels (minimal versions on each active Linux stable branch:
+    v4.19.289 v5.4.250 v5.10.187 v5.15.120 v6.1.37 v6.3.11 v6.4.1)
+    are *required*
+  * New Microcode patches:
+    +  Family=0x19 Model=0x11 Stepping=0x01: Patch=0x0a10113e
+    +  Family=0x19 Model=0x11 Stepping=0x02: Patch=0x0a10123e
+    +  Family=0x19 Model=0xa0 Stepping=0x02: Patch=0x0aa00212
+    +  Family=0x19 Model=0xa0 Stepping=0x01: Patch=0x0aa00116
+  * README: update for new release
+  * debian/NEWS: AMD Genoa/Bergamo kernel version restrictions
+  * debian/changelog: update entry for release 3.20230719.1, noting
+    that it included fixes for "AMD Inception" for Zen3 processors.
+    We did not know about AMD Inception at the time, but we always
+    include all available microcode updates when issuing a new
+    package, so we lucked out.
+  * debian/changelog: correct some information in 3.20230808.1
+    entry and reupload as 3.20230808.1.1.  There's no Zenbleed
+    for Zen4... oops!
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Thu, 10 Aug 2023 10:18:38 -0300
+
+amd64-microcode (3.20230719.1) unstable; urgency=high
+
+  * Update package data from linux-firmware 20230625-39-g59fbffa9:
+    * Fixes for CVE-2023-20593 "Zenbleed" on AMD Zen2 processors
+      (closes: #1041863)
+    * Fixes for CVE-2023-20569 "AMD Inception" on AMD Zen3 processors
+      (this changelog entry time-travelled from the future, we were
+      lucky we always include all microcode updates available)
+    * New Microcode patches:
+      + Family=0x17 Model=0xa0 Stepping=0x00: Patch=0x08a00008
+    * Updated Microcode patches:
+      + Family=0x17 Model=0x31 Stepping=0x00: Patch=0x0830107a
+      + Family=0x19 Model=0x01 Stepping=0x00: Patch=0x0a001079
+      + Family=0x19 Model=0x01 Stepping=0x01: Patch=0x0a0011d1
+      + Family=0x19 Model=0x01 Stepping=0x02: Patch=0x0a001234
+  * README: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Mon, 24 Jul 2023 13:07:34 -0300
+
+amd64-microcode (3.20230414.1) unstable; urgency=medium
+
+  * Update package data from linux-firmware 20230404-38-gfab14965:
+    (closes: #1031103)
+    * Updated Microcode patches:
+      + Family=0x17 Model=0x31 Stepping=0x00: Patch=0x08301072
+      + Family=0x19 Model=0x01 Stepping=0x00: Patch=0x0a001078
+      + Family=0x19 Model=0x01 Stepping=0x01: Patch=0x0a0011ce
+      + Family=0x19 Model=0x01 Stepping=0x02: Patch=0x0a001231
+  * README: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 28 Apr 2023 17:24:39 -0300
+
+amd64-microcode (3.20220411.2) unstable; urgency=medium
+
+  * Move source and binary from non-free/admin to non-free-firmware/admin
+    following the 2022 General Resolution about non-free firmware.
+
+ -- Cyril Brulebois <kibi@debian.org>  Fri, 17 Feb 2023 01:19:05 +0100
+
+amd64-microcode (3.20220411.1) unstable; urgency=medium
+
+  * Update package data from linux-firmware 20220411:
+    * New microcode updates from AMD upstream (20220408)
+      (closes: #1006444, #1009333)
+      + New Microcode patches:
+        sig 0x00830f10, patch id 0x08301055, 2022-02-15
+        sig 0x00a00f10, patch id 0x0a001058, 2022-02-10
+        sig 0x00a00f11, patch id 0x0a001173, 2022-01-31
+        sig 0x00a00f12, patch id 0x0a001229, 2022-02-10
+      + Updated Microcode patches:
+        sig 0x00800f12, patch id 0x0800126e, 2021/11/11
+    * New AMD-SEV firmware from AMD upstream (20220308)
+      Fixes: CVE-2019-9836 (closes: #970395)
+      + New SEV firmware:
+        Family 17h models 00h-0fh: version 0.17 build 48
+        Family 17h models 30h-3fh: version 0.24 build 15
+        Family 19h models 00h-0fh: version 1.51 build 3
+  * README: update for new release
+  * debian: ship AMD-SEV firmware.
+    Upstream license is the same license used for amd-ucode
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 15 Apr 2022 18:27:36 -0300
+
+amd64-microcode (3.20191218.1) unstable; urgency=medium
+
+  * New microcode update packages from AMD upstream:
+    + Removed Microcode updates (known to cause issues):
+      sig 0x00830f10, patch id 0x08301025, 2019-07-11
+  * README: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 20 Dec 2019 18:36:27 -0300
+
+amd64-microcode (3.20191021.1) unstable; urgency=medium
+
+  * New microcode update packages from AMD upstream:
+    + New Microcodes:
+      sig 0x00830f10, patch id 0x08301025, 2019-07-11
+    + Updated Microcodes:
+      sig 0x00800f12, patch id 0x08001250, 2019-04-16
+      sig 0x00800f82, patch id 0x0800820d, 2019-04-16
+  * README: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Tue, 22 Oct 2019 21:00:17 -0300
+
+amd64-microcode (3.20181128.1) unstable; urgency=medium
+
+  * New microcode update packages from AMD upstream:
+    + New Microcodes:
+      sig 0x00800f82, patch id 0x0800820b, 2018-06-20
+  * README: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 15 Dec 2018 18:42:12 -0200
+
+amd64-microcode (3.20180524.1) unstable; urgency=high
+
+  * New microcode update packages from AMD upstream:
+    + Re-added Microcodes:
+      sig 0x00610f01, patch id 0x06001119, 2012-07-13
+  * This update avoids regressing sig 0x610f01 processors on systems with
+    outdated firmware by adding back exactly the same microcode patch that was
+    present before [for these processors].  It does not implement Spectre-v2
+    mitigation for these processors.
+  * README: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 25 May 2018 15:38:22 -0300
+
+amd64-microcode (3.20180515.1) unstable; urgency=high
+
+  * New microcode update packages from AMD upstream:
+    + New Microcodes:
+      sig 0x00800f12, patch id 0x08001227, 2018-02-09
+    + Updated Microcodes:
+      sig 0x00600f12, patch id 0x0600063e, 2018-02-07
+      sig 0x00600f20, patch id 0x06000852, 2018-02-06
+    + Removed Microcodes:
+      sig 0x00610f01, patch id 0x06001119, 2012-07-13
+  * Adds Spectre v2 (CVE-2017-5715) microcode-based mitigation support,
+    plus other unspecified fixes/updates.
+  * README, debian/copyright: update for new release
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 19 May 2018 13:51:06 -0300
+
+amd64-microcode (3.20171205.2) unstable; urgency=medium
+
+  * debian/control: update Vcs-* fields for salsa.debian.org
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 04 May 2018 07:51:40 -0300
+
+amd64-microcode (3.20171205.1) unstable; urgency=high
+
+  * New microcode updates (closes: #886382):
+    sig 0x00800f12, patch id 0x08001213, 2017-12-05
+    Thanks to SuSE for distributing these ahead of AMD's official release!
+  * Add IBPB support for family 17h AMD processors (CVE-2017-5715)
+  * README: describe source for faml17h microcode update
+  * Upload to unstable to match IBPB microcode support on Intel in Debian
+    unstable.
+  * WARNING: requires at least kernel 4.15, 4.14.13, 4.9.76, 4.4.111 (or a
+    backport of commit f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf
+    "x86/microcode/AMD: Add support for fam17h microcode loading") otherwise
+    it will not be applied to the processor.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Mon, 08 Jan 2018 12:19:57 -0200
+
+amd64-microcode (3.20160316.3) unstable; urgency=medium
+
+  * initramfs: Make the early initramfs reproducible (closes: #845194)
+  * rules: switch to simplified dh-based build (debhelper v9)
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Tue, 29 Nov 2016 23:54:53 -0200
+
+amd64-microcode (3.20160316.2) unstable; urgency=medium
+
+  * NEWS.debian: fix minor typo
+  * debian/control, debian/compat: bump debhelper compat mode to 9
+  * debian/control: bump standards version to 3.9.8 (no changes needed)
+  * debian/: prefix binary-package control files with package name
+  * debian/control: recommend tiny-initramfs as an alternative to
+    initramfs-tools tiny-initramfs specifically supports early microcode
+    updates, so it is a viable alternative to initramfs-tools
+    (closes: #839882)
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sun, 09 Oct 2016 15:43:16 -0300
+
+amd64-microcode (3.20160316.1) unstable; urgency=low
+
+  * Bump major version number to 3: early-initramfs support
+  * Support is now restricted to Linux kernel 3.14 and later.  For older
+    kernels, please use the version 2 (older) branch of the package.
+  * Implement early-initramfs mode, and remove normal mode
+    * debian/control: add versioned recommends for initramfs-tools and
+      dracut.  Note that dracut 044 is required for Linux 4.4 and later,
+      otherwise dracut 040 would be enough
+    * debian/default: add early mode, remove normal mode from comments
+    * initramfs hook: use cpio to generate an early-initramfs with
+      microcode for all processors, blacklist kernels older than 3.14,
+      and remove normal mode support.
+    * initramfs.init-premount: remove, not needed for early-initramfs
+    * debian/rules: don't install init-premount initramfs script.
+  * initramfs.hook: detect a missing microcode.ko and don't attempt to
+    force_load() it.  In verbose mode, log when the microcode driver is
+    modular.  For Linux 4.4 and later, skip the module loading logic
+    (closes: #809444)
+  * README.Debian: update for early initramfs support, and add information
+    on how to disable early updates using the dis_ucode_ldr kernel boot
+    parameter
+  * Support for x32 was enabled in debian/control for the 2.20160316.1
+    upload, but the changelog did not record this by mistake.  The missing
+    entry was retroactively added to debian/changelog by this upload
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sun, 10 Apr 2016 16:31:23 -0300
+
+amd64-microcode (2.20160316.1) unstable; urgency=critical
+
+  * Upstream release 20160316 built from linux-firmware:
+    + Updated Microcodes:
+      sig 0x00600f20, patch id 0x0600084f, 2016-01-25
+    + This microcode updates fixes a critical erratum on NMI handling
+      introduced by microcode patch id 0x6000832 from the 20141028 update.
+      The erratum is also present on microcode patch id 0x6000836.
+    + THIS IS A CRITICAL STABILITY AND SECURITY UPDATE FOR THE EARLIER
+      AMD PILEDRIVER PROCESSORS, including:
+      + AMD Opteron 3300, 4300, 6300
+      + AMD FX "Vishera" (43xx, 63xx, 83xx, 93xx, 95xx)
+      + AMD processors with family 21, model 2, stepping 0
+  * Robert Święcki, while fuzzing the kernel using the syzkaller tool,
+    uncovered very strange behavior on an AMD FX-8320, later reproduced on
+    other AMD Piledriver model 2, stepping 0 processors including the Opteron
+    6300.  Robert discovered, using his proof-of-concept exploit code, that
+    the incorrect behavior allows an unpriviledged attacker on an unpriviledged
+    VM to corrupt the return stack of the host kernel's NMI handler.  At best,
+    this results in unpredictable host behavior.  At worst, it allows for an
+    unpriviledged user on unpriviledged VM to carry a sucessful host-kernel
+    ring 0 code injection attack.
+  * The erratum is timing-dependant, easily triggered by workloads that cause
+    a high number of NMIs, such as running the "perf" tool.
+  * debian/control: enable buiding on x32 (closes: #777233)
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 19 Mar 2016 14:02:44 -0300
+
+amd64-microcode (2.20141028.1) unstable; urgency=medium
+
+  * Upstream release 20141028 built from linux-firmware:
+    + Updated microcode patches for family 0x15 processors
+    + Added microcode patches for family 0x16 processors
+  * AMD did not update the relevant microcode documentation (errata fixed,
+    microcode patch levels, etc), so there is no documentation for the
+    family 0x16 microcode patches, and the documentation for family 0x15 is
+    stale.
+  * postinst: do not update microcode on upgrades:
+    Remove code that triggers a microcode update on package upgrade.  The
+    resulting postinst script is now identical to the one in Debian jessie's
+    intel-microcode, and thus known-good.
+    NOTE: this code was already disabled for the majority of the users due
+    to Debian bug #723975 (closes: #723975, #723081)
+  * kpreinst: remove, we don't update microcode on postinst anymore
+  * blacklist automated loading of the microcode module:
+    This is in line with the desired behavior of only updating microcode
+    *automatically* during system boot, when it is safer to do so.  The
+    local admin can still load the microcode module and update the microcode
+    manually at any time, of course.  This is in sync with the intel-microcode
+    packages in Debian jessie, which will also blacklist the microcode module.
+    Note that the initramfs will force-load the microcode module in a safe
+    condition, the blacklist avoids module autoloading outside the initramfs
+  * control: bump standards version (no changes required)
+  * copyright: update upstream URL and upstream copyright date
+    (closes: #753593)
+  * docs: future-proof by using a glob pattern for per-family README files
+  * initramfs hook: support forced installation of amd64-microcode:
+    Add a config file (/etc/default/amd64-microcode) to select the mode of
+    operation: do nothing, force install to initramfs, install only when
+    running on an amd64 processor (closes: #726854)
+  * initramfs hook: fix (likely unexploitable) issues found by shellcheck
+  * Add a NEWS.Debian file to warn users we will no longer update the
+    microcode on package upgrade (note that we were not doing it on any
+    Debian kernels anyway).  Also document the existence of the new
+    /etc/default/amd64-microcode file
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Thu, 18 Dec 2014 13:36:27 -0200
+
+amd64-microcode (2.20131007.1+really20130710.1) unstable; urgency=low
+
+  * Fix M-D-Y issue that leaked to the package version number
+  * The real upstream release date is 2013-07-10
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 07 Sep 2013 22:22:00 -0300
+
+amd64-microcode (2.20131007.1) unstable; urgency=low
+
+  * New upstream release, received through linux-firmware and LKML
+    + updated microcode:
+      sig 0x00500F10, id 0x05000029: erratum (+) 784;
+      sig 0x00500F20, id 0x05000119: erratum (+) 784;
+      sig 0x00600F12, id 0x0600063D: errata (-) 668, (+) 759, 778;
+    + new microcode:
+      sig 0x00200F31, id 0x02000032: errata 311, 316;
+      sig 0x00600F20, id 0x06000822: errata 691, 699, 704, 708, 709, 734,
+          740, 778;
+    + This update fixes important processor bugs that cause data corruption
+      or unpredictable system behaviour.  It also fixes a performance issue
+      and several issues that cause system lockup.
+  * Switch to native package, since there is no upstream tarball
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 07 Sep 2013 15:22:09 -0300
+
+amd64-microcode (2.20120910-1) unstable; urgency=high
+
+  * debian/control: update Breaks for new intel-microcode version scheme
+  * Bump major version number, this will allow us to also update the stable
+    branch of amd64-microcode in the future without clashing with the stable
+    branch of intel-microcode.  The real issue is that amd64-microcode
+    1.20120910-3 and intel-microcode 1.20130222.6 have changed (in lockstep)
+    to a different initramfs cooperation protocol, but I failed to bump the
+    major version at that time
+  * Urgency high to avoid delaying a series of high-priority intel-microcode
+    updates being done at the moment: we need this version in testing before
+    I can upload stable backports of intel-microcode or amd64-microcode
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sun, 18 Aug 2013 16:19:42 -0300
+
+amd64-microcode (1.20120910-3) unstable; urgency=low
+
+  * control: remove homepage and update standards-version
+  * initramfs: update copyright information
+  * initramfs, postinst: don't do anything on non-AMD systems (Closes: #715518)
+  * initramfs, postinst: blacklist several kernel versions (Closes: #717185)
+  * control: add breaks: intel-microcode (<< 1.20130222.6~)
+  * load microcode module on package install/upgrade
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sat, 20 Jul 2013 12:45:04 -0300
+
+amd64-microcode (1.20120910-2) unstable; urgency=medium
+
+  * initramfs: work around initramfs-tools bug #688794.
+    Use "_" in place of "+-." for the initramfs script name.  This works
+    around a PANIC during boot when the initramfs was created in a system
+    with noexec $TMPDIR.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Tue, 09 Oct 2012 08:18:01 -0300
+
+amd64-microcode (1.20120910-1) unstable; urgency=medium
+
+  * AMD microcode release 20120910
+    + updated microcode:
+      sig 0x00600F12, id 0x06000629: errata (+) 691, 709, 740;
+    + new microcode:
+      sig 0x00610F01, id 0x06001119: errata 671, 686, 697, 698, 699, 704, 709,
+          734, 740;
+    + This update adds critical errata fixes for commonly used features.
+      The hit probability of these errata is unknown to the Debian maintainer.
+  * README.Debian: mention module-init-tools, not just kmod.  This is useful
+    when backporting to Debian Squeeze
+  * debian/control: add Vcs-* fields
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Fri, 14 Sep 2012 15:39:37 -0300
+
+amd64-microcode (1.20120117-2) unstable; urgency=low
+
+  * debian/control: priority of this package should be standard,
+    not extra.  All AMD-based X86 boxes should install this package
+  * debian/control: update package description
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Mon, 09 Jul 2012 21:50:35 -0300
+
+amd64-microcode (1.20120117-1) unstable; urgency=low
+
+  * Update ABI (first component of package version) to 1, to match
+    the ABI of intel-microcode packages with /lib/firmware support
+  * Update online processor cores and the initramfs image on package
+    upgrade and the initramfs on package removal
+  * Install initramfs-tools helpers to handle boot-time microcode
+    updates
+  * README.Debian: describe supported mod/built-in configs
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Mon, 09 Jul 2012 19:31:47 -0300
+
+amd64-microcode (0.20120117-1) unstable; urgency=medium
+
+  * AMD microcode release 20120117:
+    sig 0x00100F22, id 0x01000083: errata 244, 260, 280, 302, 308, 315, 342;
+    sig 0x00100F23, id 0x01000083: errata 244, 260, 280, 302, 308, 315, 342;
+    sig 0x00100F2A, id 0x01000084: errata 244, 260, 280, 302, 308, 315, 342;
+    sig 0x00100F42, id 0x010000DB: errata 342, 440, 573;
+    sig 0x00100F43, id 0x010000C8: errata 407, 440;
+    sig 0x00100F52, id 0x010000DB: errata 342, 440, 573;
+    sig 0x00100F53, id 0x010000C8: errata 407, 440;
+    sig 0x00100F62, id 0x010000C7: errata 407, 440;
+    sig 0x00100F63, id 0x010000C8: errata 407, 440;
+    sig 0x00100F80, id 0x010000DA: errata 419, 440, 573;
+    sig 0x00100F81, id 0x010000D9: errata 406, 407, 440, 573, 669;
+    sig 0x00100F91, id 0x010000D9: errata 406, 407, 440, 573, 669;
+    sig 0x00100FA0, id 0x010000DC: errata 438, 440, 573;
+    sig 0x00300F10, id 0x03000027: errata 564, 573, 662, 686;
+    sig 0x00500F10, id 0x05000028: errata 461, 564, 594, 595;
+    sig 0x00500F20, id 0x0500010D: errata 461, 564, 594, 639, 662, 686;
+    sig 0x00600F12, id 0x06000624: errata 659, 660, 661, 668, 671, 672, 673;
+  * Initial upload to Debian, urgency medium because we need this in Wheezy
+    to properly support AMD processors.  Closes: #676921.
+
+ -- Henrique de Moraes Holschuh <hmh@debian.org>  Sun, 10 Jun 2012 12:22:01 -0300
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..ec63514
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+9
diff --git a/debian/control b/debian/control
new file mode 100644
index 0000000..735cea0
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,30 @@
+Source: amd64-microcode
+Section: non-free-firmware/admin
+Priority: standard
+Maintainer: Henrique de Moraes Holschuh <hmh@debian.org>
+Uploaders: Giacomo Catenazzi <cate@debian.org>
+Build-Depends: debhelper (>= 9)
+Standards-Version: 3.9.8
+Vcs-Git: https://salsa.debian.org/hmh/amd64-microcode.git
+Vcs-Browser: https://salsa.debian.org/hmh/amd64-microcode
+XS-Autobuild: yes
+
+Package: amd64-microcode
+Architecture: i386 amd64 x32
+Recommends: initramfs-tools (>= 0.113~) | dracut (>= 044) | tiny-initramfs
+Depends: ${misc:Depends}
+Breaks: intel-microcode (<< 2)
+Description: Platform firmware and microcode for AMD CPUs and SoCs
+ This package contains microcode patches for AMD AMD64
+ processors.  AMD releases microcode patches to correct
+ processor behavior as documented in the respective processor
+ revision guides.
+ .
+ This package includes the required firmware to enable AMD
+ SEV (Secure Encrypted Virtualization) functionality.
+ .
+ This package also includes AMD TAs (Trusted Applications)
+ required by AMD platform drivers such as AMD PMF (Platform
+ Management Framework).
+ .
+ For Intel processors, please refer to the intel-microcode package.
diff --git a/debian/copyright b/debian/copyright
new file mode 100644
index 0000000..8327915
--- /dev/null
+++ b/debian/copyright
@@ -0,0 +1,146 @@
+This package was debianized by Henrique de Moraes Holschuh <hmh@debian.org> on
+Sun Jun 10 10:54:36 BRT 2012
+
+It was downloaded from http://www.amd64.org/support/microcode.html up to
+version 20120910 (now: http://www.amd64.org/microcode.html).  For version
+20131007 onwards, it was built from the linux-firmware git repository at:
+https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/
+
+Debian only distributes the AMD64 microcode file in its unaltered form.
+
+Upstream Author: 
+
+    Advanced Micro Devices, Inc.
+
+Upstream Copyright (AMD-UCODE):
+
+    Copyright (C) 2010-2018 Advanced Micro Devices, Inc.
+    All rights reserved.
+
+Upstream Copyright (AMD_SEV):
+
+    Copyright (C) 2015-2019 Advanced Micro Devices, Inc.
+    All rights reserved.
+
+Upstream Copyright (AMD_PMF):
+    Copyright (C) 2023  Advanced Micro Devices, Inc.
+    All rights reserved.
+
+
+Upstream License (AMD-UCODE, AMD_SEV):
+
+    Permission is hereby granted by Advanced Micro Devices, Inc. ("AMD"),
+    free of any license fees, to any person obtaining a copy of this
+    microcode in binary form (the "Software") ("You"), to install,
+    reproduce, copy and distribute copies of the Software and to permit
+    persons to whom the Software is provided to do the same, subject to
+    the following terms and conditions.  Your use of any portion of the
+    Software shall constitute Your acceptance of the following terms and
+    conditions. If You do not agree to the following terms and conditions,
+    do not use, retain or redistribute any portion of the Software.
+
+    If You redistribute this Software, You must reproduce the above
+    copyright notice and this license with the Software.
+    Without specific, prior, written permission from AMD, You may not
+    reference AMD or AMD products in the promotion of any product derived
+    from or incorporating this Software in any manner that implies that
+    AMD endorses or has certified such product derived from or
+    incorporating this Software.
+
+    You may not reverse engineer, decompile, or disassemble this Software
+    or any portion thereof.
+
+    THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED
+    WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
+    MERCHANTABILITY, NONINFRINGEMENT, TITLE, FITNESS FOR ANY PARTICULAR
+    PURPOSE, OR WARRANTIES ARISING FROM CONDUCT, COURSE OF DEALING, OR
+    USAGE OF TRADE. IN NO EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR
+    ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR
+    LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF DATA OR
+    INFORMATION) ARISING OUT OF AMD'S NEGLIGENCE, GROSS NEGLIGENCE, THE
+    USE OF OR INABILITY TO USE THE SOFTWARE, EVEN IF AMD HAS BEEN ADVISED
+    OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS
+    PROHIBIT THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR
+    INCIDENTAL DAMAGES OR THE EXCLUSION OF IMPLIED WARRANTIES, THE ABOVE
+    LIMITATION MAY NOT APPLY TO YOU.
+
+    Without limiting the foregoing, the Software may implement third party
+    technologies for which You must obtain licenses from parties other
+    than AMD. You agree that AMD has not obtained or conveyed to You, and
+    that You shall be responsible for obtaining the rights to use and/or
+    distribute the applicable underlying intellectual property rights
+    related to the third party technologies. These third party
+    technologies are not licensed hereunder.
+
+    If You use the Software (in whole or in part), You shall adhere to all
+    applicable U.S., European, and other export laws, including but not
+    limited to the U.S. Export Administration Regulations ("EAR"), (15
+    C.F.R. Sections 730 through 774), and E.U. Council Regulation (EC) No
+    1334/2000 of 22 June 2000. Further, pursuant to Section 740.6  of the
+    EAR, You hereby certify that, except pursuant to a license granted by
+    the United States Department of Commerce Bureau of Industry and
+    Security or as otherwise permitted pursuant to a License Exception
+    under the U.S. Export Administration Regulations ("EAR"), You will not
+    (1) export, re-export or release to a national of a country in Country
+    Groups D:1, E:1 or E:2 any restricted technology, software, or source
+    code You receive hereunder, or (2) export to Country Groups D:1, E:1
+    or E:2 the direct product of such technology or software, if such
+    foreign produced direct product is subject to national security
+    controls as identified on the Commerce Control List (currently found
+    in Supplement 1 to Part 774 of EAR). For the most current Country
+    Group listings, or for additional information about the EAR or Your
+    obligations under those regulations, please refer to the U.S. Bureau
+    of Industry and Security?s website at ttp://www.bis.doc.gov/.
+
+
+Upstream License: (AMD_PMF):
+
+    REDISTRIBUTION: Permission is hereby granted, free of any license fees,
+    to any person obtaining a copy of this microcode (the "Software"), to
+    install, reproduce, copy and distribute copies, in binary form only, of
+    the Software and to permit persons to whom the Software is provided to
+    do the same, provided that the following conditions are met:
+
+    No reverse engineering, decompilation, or disassembly of this Software
+    is permitted.
+
+    Redistributions must reproduce the above copyright notice, this
+    permission notice, and the following disclaimers and notices in the
+    Software documentation and/or other materials provided with the
+    Software.
+
+    DISCLAIMER: THE USE OF THE SOFTWARE IS AT YOUR SOLE RISK.  THE SOFTWARE
+    IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND AND COPYRIGHT
+    HOLDER AND ITS LICENSORS EXPRESSLY DISCLAIM ALL WARRANTIES, EXPRESS AND
+    IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+    COPYRIGHT HOLDER AND ITS LICENSORS DO NOT WARRANT THAT THE SOFTWARE WILL
+    MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THE SOFTWARE WILL BE
+    UNINTERRUPTED OR ERROR-FREE.  THE ENTIRE RISK ASSOCIATED WITH THE USE OF
+    THE SOFTWARE IS ASSUMED BY YOU.  FURTHERMORE, COPYRIGHT HOLDER AND ITS
+    LICENSORS DO NOT WARRANT OR MAKE ANY REPRESENTATIONS REGARDING THE USE
+    OR THE RESULTS OF THE USE OF THE SOFTWARE IN TERMS OF ITS CORRECTNESS,
+    ACCURACY, RELIABILITY, CURRENTNESS, OR OTHERWISE.
+
+    DISCLAIMER: UNDER NO CIRCUMSTANCES INCLUDING NEGLIGENCE, SHALL COPYRIGHT
+    HOLDER AND ITS LICENSORS OR ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS
+    ("AUTHORIZED REPRESENTATIVES") BE LIABLE FOR ANY INCIDENTAL, INDIRECT,
+    SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS
+    PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, AND THE
+    LIKE) ARISING OUT OF THE USE, MISUSE OR INABILITY TO USE THE SOFTWARE,
+    BREACH OR DEFAULT, INCLUDING THOSE ARISING FROM INFRINGEMENT OR ALLEGED
+    INFRINGEMENT OF ANY PATENT, TRADEMARK, COPYRIGHT OR OTHER INTELLECTUAL
+    PROPERTY RIGHT EVEN IF COPYRIGHT HOLDER AND ITS AUTHORIZED
+    REPRESENTATIVES HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.  IN
+    NO EVENT SHALL COPYRIGHT HOLDER OR ITS AUTHORIZED REPRESENTATIVES TOTAL
+    LIABILITY FOR ALL DAMAGES, LOSSES, AND CAUSES OF ACTION (WHETHER IN
+    CONTRACT, TORT (INCLUDING NEGLIGENCE) OR OTHERWISE) EXCEED THE AMOUNT OF
+    US$10.
+
+    Notice:  The Software is subject to United States export laws and
+    regulations.  You agree to comply with all domestic and international
+    export laws and regulations that apply to the Software, including but
+    not limited to the Export Administration Regulations administered by the
+    U.S. Department of Commerce and International Traffic in Arm Regulations
+    administered by the U.S. Department of State.  These laws include
+    restrictions on destinations, end users and end use.
diff --git a/debian/initramfs.hook b/debian/initramfs.hook
new file mode 100755
index 0000000..c65d7d4
--- /dev/null
+++ b/debian/initramfs.hook
@@ -0,0 +1,127 @@
+#!/bin/sh
+# amd64-microcode initramfs-tools hook script
+# Copyright (C) 2012-2016 Henrique de Moraes Holschuh <hmh@debian.org>
+# Released under the GPL v2 or later license
+#
+# Generates a copy of the minimal microcode for all AMD processors
+# and installs it to the early initramfs
+
+PREREQ=""
+AMD64UCODE_CONFIG=/etc/default/amd64-microcode
+
+prereqs()
+{
+   echo "$PREREQ"
+}
+
+case $1 in
+prereqs)
+   prereqs
+   exit 0
+   ;;
+esac
+
+. /usr/share/initramfs-tools/hook-functions
+
+verbose()
+{
+    if [ "${verbose}" = "y" ] ; then
+        echo "I: amd64-microcode: $*"
+    fi
+    :
+}
+
+AUCODE_FW_DIR=/lib/firmware/amd-ucode
+AMD64UCODE_INITRAMFS=auto
+[ -r ${AMD64UCODE_CONFIG} ] && . ${AMD64UCODE_CONFIG}
+
+[ -z "${AMD64UCODE_INITRAMFS}" ] && AMD64UCODE_INITRAMFS=no
+
+if [ ! -d "${AUCODE_FW_DIR}" ] ; then
+    verbose "no AMD64 processor microcode datafiles to install"
+    exit 0
+fi
+
+case "${AMD64UCODE_INITRAMFS}" in
+    no|0)
+        verbose "disabled by ${AMD64UCODE_CONFIG}"
+        exit 0
+        ;;
+    auto|early)
+        ;;
+    yes|1)
+        echo "W: amd64-microcode: initramfs mode not supported, using early-initramfs mode" >&2
+        AMD64UCODE_INITRAMFS=early
+        ;;
+    *)
+        echo "E: amd64-microcode: invalid AMD64UCODE_INITRAMFS, using automatic mode" >&2
+        AMD64UCODE_INITRAMFS=auto
+esac
+
+if [ "${AMD64UCODE_INITRAMFS}" = "auto" ] ; then
+    grep -q "^vendor_id[[:blank:]]*:[[:blank:]]*.*AuthenticAMD" /proc/cpuinfo || {
+        verbose "no AMD processors detected, nothing to do"
+        exit 0
+    }
+fi
+
+# whitelist AMD early updates for kernels 3.14 and later
+if dpkg --compare-versions "${version}" lt 3.14 ; then
+    echo "E: amd64-microcode: unsupported kernel version!" >&2
+    exit 0
+fi
+
+verbose "installing AMD64 microcode into the early initramfs..."
+
+# set during package build to the date from the package *version*
+CHANGELOG_TS=@CHANGELOG_TS@
+
+EFWD=$(mktemp -d "${TMPDIR:-/var/tmp}/mkinitramfs-EFW_XXXXXXXXXX") || {
+    echo "E: amd64-microcode: cannot create temporary directory" >&2
+    exit 1
+}
+# paranoia
+[ ! -d "${EFWD}" ] && {
+    echo "E: amd64-microcode: mktemp -d malfunction" >&2
+    exit 1
+}
+
+EFWE="${EFWD}/early-initramfs.cpio"
+
+EFWCD="${EFWD}/d/kernel/x86/microcode"
+EFWF="${EFWCD}/AuthenticAMD.bin"
+
+# note: to build a reproducible early initramfs, we force
+# the microcode component ordering inside the microcode
+# firmware file, as well as the timestamp and ordering of
+# all cpio members.
+mkdir -p "${EFWCD}" && \
+ find "${AUCODE_FW_DIR}/." -maxdepth 1 -type f -print0 | LC_ALL=C sort -z | xargs -0 -r cat 2>/dev/null >"${EFWF}" && \
+ find "${EFWD}" -print0 | xargs -0r touch --no-dereference --date="@${CHANGELOG_TS}" && { \
+    # --reproducible requires cpio >= 2.12
+    cpio --usage | grep -qs -- "--reproducible" && cpio_reproducible="--reproducible" || true
+ } && test -s "${EFWF}" && \
+ ( cd "${EFWD}/d" ; find . -print0 | LC_ALL=C sort -z | cpio --null $cpio_reproducible -R 0:0 -H newc -o --quiet > "${EFWE}" ) \
+&& prepend_earlyinitramfs "${EFWE}" || {
+    # something failed somewhere in that pipeline
+    [ -d "${EFWD}" ] && rm -fr "${EFWD}"
+    echo "E: amd64-microcode: failed to create or prepend the early initramfs to the initramfs" >&2
+    exit 0
+}
+
+[ -d "${EFWD}" ] && rm -fr "${EFWD}"
+
+# attempt to load microcode module to get proper logging.
+# microcode support cannot be made modular since Linux 4.4
+
+if dpkg --compare-versions "${version}" lt 4.4 ; then
+    manual_add_modules microcode && {
+        # force_load has broken semanthics when the .ko file is missing
+        find "${DESTDIR}/${MODULESDIR}" -type f -print | grep -qc '/microcode\.ko$' && {
+          verbose "modular microcode driver detected"
+          force_load microcode
+        }
+    }
+fi
+
+:
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 0000000..7a4028d
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,33 @@
+#!/usr/bin/make -f
+# debian/rules for amd64-microcode
+# Copyright (C) 2012-2016 by Henrique de Moraes Holschuh
+# Published under the GNU GPL license version 2 or any later versions
+
+PACKAGE := amd64-microcode
+DEBDIR  := $(CURDIR)/debian
+PKGDIR  := $(DEBDIR)/$(PACKAGE)
+
+# DebHelper control
+export DH_ALWAYS_EXCLUDE=CVS:.svn:.git
+
+# Work around Debian bug #688794
+INITRAMFS_NAME := $(subst -,_,$(subst +,_,$(subst .,_,$(PACKAGE))))
+
+# For reproducible builds...
+CHANGELOG_TS :=$(shell date -u +%s --date=$(shell dpkg-parsechangelog | sed -n -e "/^Version:/ {s/.*\.\([0-9]\{8\}\)\..*/\1/;p}"))
+
+%:
+	dh $@
+
+override_dh_auto_install:
+	dh_testdir
+	dh_install
+	mkdir -p "$(PKGDIR)/usr/share/initramfs-tools/hooks"
+	sed -e "s/@CHANGELOG_TS@/$(CHANGELOG_TS)/g" \
+	    <"$(DEBDIR)/initramfs.hook" \
+	    >"$(PKGDIR)/usr/share/initramfs-tools/hooks/$(INITRAMFS_NAME)"
+	chmod 755 "$(PKGDIR)/usr/share/initramfs-tools/hooks/$(INITRAMFS_NAME)"
+	# We have a /etc/default file, but no initscript
+	install -m 644 "$(DEBDIR)/$(PACKAGE).default" "$(PKGDIR)/etc/default/$(PACKAGE)"
+	# modprobe.d blacklist
+	install -m 644 "$(DEBDIR)/$(PACKAGE).modprobe-blacklist" "$(PKGDIR)/etc/modprobe.d/$(PACKAGE)-blacklist.conf"
diff --git a/debian/source/format b/debian/source/format
new file mode 100644
index 0000000..89ae9db
--- /dev/null
+++ b/debian/source/format
@@ -0,0 +1 @@
+3.0 (native)