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Peter Große eb392eefde grub-mkconfig/20_linux_xen: Support multiple early initrd images 
Add support for multiple, shared, early initrd images. These early
images will be loaded in the order declared, and all will be loaded
before the initrd image.

While many classes of data can be provided by early images, the
immediate use case would be for distributions to provide CPU
microcode to mitigate the Meltdown and Spectre vulnerabilities.

Xen has also support to load microcode updates provided as additional
modules by the bootloader.

There are two environment variables provided for declaring the early
images.

* GRUB_EARLY_INITRD_LINUX_STOCK is for the distribution declare
  images that are provided by the distribution or installed packages.
  If undeclared, this will default to a set of common microcode image
  names.

* GRUB_EARLY_INITRD_LINUX_CUSTOM is for user created images. User
  images will be loaded after the stock images.

These separate configurations allow the distribution and user to
declare different image sets without clobbering each other.

This also makes a minor update to ensure that UUID partition labels
stay disabled when no initrd image is found, even if early images are
present.

This is basically a copy of a698240d "grub-mkconfig/10_linux: Support
multiple early initrd images" by Matthew S. Turnbull.

Signed-off-by: Peter Große <pegro@friiks.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 16:43:54 -04:00
..
bash-completion.d Clean up dangling references to grub-setup. 2013-01-12 13:30:37 +00:00
grub.d grub-mkconfig/20_linux_xen: Support multiple early initrd images 2020-09-21 16:43:54 -04:00
i386/efi Merge mainline into install 2010-09-15 14:46:53 +02:00
ieee1275 ieee1275: Fix segfault in grub-ofpathname 2020-09-21 12:16:25 -04:00
bin2h.c Fix handling of build-time grub-bin2h and grub-mkfont when doing 2013-08-14 10:56:55 +02:00
config.c * util/config.c: Remove trailing newline from distributor in simple 2013-12-14 21:50:36 +01:00
editenv.c Add missing includes. 2013-12-21 13:47:27 +01:00
garbage-gen.c * util/garbage-gen.c: Add missing include of sys/time.h. 2013-11-23 12:42:30 +01:00
getroot.c i386, x86_64, ppc: fix switch fallthrough cases with GCC7 2017-04-04 19:23:55 +03:00
glue-efi.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-editenv.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-file.c Fix canonicalize_file_name clash. 2015-03-04 01:00:19 +01:00
grub-fstest.c verifiers: File type for fine-grained signature-verification controlling 2020-09-21 13:29:05 -04:00
grub-gen-asciih.c * util/grub-gen-asciih.c (add_glyph): Fix uninitialised variable. 2014-06-21 20:26:47 +02:00
grub-gen-widthspec.c Fix build with FreeType 2.5.1 2013-11-29 12:19:36 +00:00
grub-glue-efi.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-install-common.c xen_pvh: Support grub-install for xen_pvh 2020-09-21 13:57:20 -04:00
grub-install.c xen_pvh: Support grub-install for xen_pvh 2020-09-21 13:57:20 -04:00
grub-kbdcomp.in Change -v to -V for version of shell utils. 2016-02-12 15:46:05 +01:00
grub-macbless.c Fix canonicalize_file_name clash. 2015-03-04 01:00:19 +01:00
grub-macho2img.c * util/grub-macho2img.c: Use plain fopen rather than grub_util_fopen. 2013-11-11 22:48:43 +01:00
grub-menulst2cfg.c Add a wrapper for fopen. On unix-like systems just pass-through. On 2013-10-13 20:36:28 +02:00
grub-mkconfig.in templates: Update grub script template files 2020-09-21 13:19:10 -04:00
grub-mkconfig_lib.in grub-mkconfig: Fix detecting .sig files as system images 2020-09-21 12:16:25 -04:00
grub-mkfont.c grub-mkfont: Remove leftover debug statement. 2017-01-31 22:32:21 +01:00
grub-mkimage.c Add support for device-tree-based drivers. 2020-09-21 11:32:45 -04:00
grub-mkimage32.c xen_pvh: Support building a standalone image 2020-09-21 13:57:20 -04:00
grub-mkimage64.c xen_pvh: Support building a standalone image 2020-09-21 13:57:20 -04:00
grub-mkimagexx.c xen_pvh: Support building a standalone image 2020-09-21 13:57:20 -04:00
grub-mklayout.c grub-mklayout: check subscript bounds 2016-01-09 14:13:36 +03:00
grub-mknetdir.c grub-mknetdir: Add support for ARM64 EFI 2016-11-14 19:27:13 +03:00
grub-mkpasswd-pbkdf2.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-mkrelpath.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-mkrescue.c Fail if xorriso failed. 2020-09-21 11:32:45 -04:00
grub-mkstandalone.c util/grub-mkstandalone: fix memory leak. 2015-01-26 23:04:09 +03:00
grub-module-verifier.c grub-module-verifier: Ignore all_video for xen_pvh 2020-09-21 13:57:20 -04:00
grub-module-verifier32.c Verify modules on build-time rather than failing in runtime. 2015-12-31 13:09:15 +01:00
grub-module-verifier64.c Verify modules on build-time rather than failing in runtime. 2015-12-31 13:09:15 +01:00
grub-module-verifierXX.c grub-module-verifier: Report the filename or modname in errors 2020-09-21 13:19:10 -04:00
grub-mount.c verifiers: File type for fine-grained signature-verification controlling 2020-09-21 13:29:05 -04:00
grub-pe2elf.c remove extra newlines in grub_util_* strings 2015-05-13 09:47:17 +03:00
grub-probe.c grub-probe: Add PARTUUID detection support 2020-09-21 13:19:10 -04:00
grub-reboot.in grub-reboot: Warn when "for the next boot only" promise cannot be kept 2020-09-21 13:29:05 -04:00
grub-render-label.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-script-check.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-set-default.in Change -v to -V for version of shell utils. 2016-02-12 15:46:05 +01:00
grub-setup.c Build fixes for argp.h with older gcc. 2013-12-21 18:08:25 +01:00
grub-syslinux2cfg.c Fix canonicalize_file_name clash. 2015-03-04 01:00:19 +01:00
import_gcry.py fix Mingw W64-32 cross compile failure due to printf redefinition in libintl.h 2014-01-25 21:49:41 +04:00
import_gcrypth.sed Import libgcrypt 1.5.3. 2013-11-07 06:35:50 +01:00
import_unicode.py * util/import_unicode.py: Add missing brackets around string for 2012-03-10 20:47:12 +01:00
misc.c Move file loading functions to grub-emu. 2016-01-05 21:10:27 +01:00
mkimage.c xen_pvh: Support building a standalone image 2020-09-21 13:57:20 -04:00
probe.c Fix canonicalize_file_name clash. 2015-03-04 01:00:19 +01:00
render-label.c Fix canonicalize_file_name clash. 2015-03-04 01:00:19 +01:00
resolve.c util/setup: fix grub_util_path_list leak 2016-01-09 13:55:18 +03:00
setup.c grub-setup: Debug message cleanup 2020-09-21 13:19:10 -04:00
setup_bios.c Split grub-setup.c into frontend (grub-setup.c) and backend (setup.c) 2013-10-15 16:16:04 +02:00
setup_sparc.c Split grub-setup.c into frontend (grub-setup.c) and backend (setup.c) 2013-10-15 16:16:04 +02:00
spkmodem-recv.c Improve spkmomdem reliability by adding a separator between bytes. 2013-01-21 14:55:30 +01:00