linux_dsm_epyc7002/arch/x86/mm
Borislav Petkov 4b703305d9 x86/microcode: Fix suspend to RAM with builtin microcode
Usually, after we have found the proper microcode blob for the current
machine, we stash it away for later use with save_microcode_in_initrd().

However, with builtin microcode which doesn't come from the initrd, we
don't call that function because CONFIG_BLK_DEV_INITRD=n and even if
set, we don't have a valid initrd.

In order to fix this, let's make save_microcode_in_initrd() an
fs_initcall which runs before rootfs_initcall() as this was the time it
was called previously through:

 rootfs_initcall(populate_rootfs)
 |-> free_initrd()
     |-> free_initrd_mem()
         |-> save_microcode_in_initrd()

Also, we make it run independently from initrd functionality being
present or not.

And since it is called in the microcode loader only now, we can also
make it static.

Reported-and-tested-by: Jim Bos <jim876@xs4all.nl>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # v4.6
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1465225850-7352-3-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-08 11:04:19 +02:00
..
kmemcheck x86: Replace __get_cpu_var uses 2014-08-26 13:45:49 -04:00
amdtopology.c
debug_pagetables.c x86/mm/ptdump: Make (debugfs)/kernel_page_tables read-only 2015-12-04 12:55:01 +01:00
dump_pagetables.c x86/mm/ptdump: Remove paravirt_enabled() 2016-02-20 12:25:45 +01:00
extable.c x86/segments/64: When loadsegment(fs, ...) fails, clear the base 2016-04-29 11:56:41 +02:00
fault.c x86/mm: Switch from TASK_SIZE to TASK_SIZE_MAX in the page fault code 2016-05-20 09:10:03 +02:00
gup.c Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-20 19:08:56 -07:00
highmem_32.c kmap_atomic_to_page() has no users, remove it 2015-11-09 15:11:24 -08:00
hugetlbpage.c x86: mm: use hugetlb_bad_size() 2016-05-19 19:12:14 -07:00
ident_map.c x86/boot: Add missing file header comments 2016-05-10 10:12:03 +02:00
init_32.c Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-05-16 15:54:01 -07:00
init_64.c Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-05-16 15:54:01 -07:00
init.c x86/microcode: Fix suspend to RAM with builtin microcode 2016-06-08 11:04:19 +02:00
iomap_32.c Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
ioremap.c x86/cpufeature: Remove cpu_has_pse 2016-03-31 13:35:10 +02:00
kasan_init_64.c x86/kasan: Write protect kasan zero shadow 2016-02-09 13:33:14 +01:00
kmmio.c x86/mm/kmmio: Fix mmiotrace for hugepages 2016-03-05 13:24:41 +01:00
Makefile x86/mm: Build arch/x86/mm/tlb.c even on !SMP 2016-04-28 11:44:19 +02:00
mm_internal.h x86: Enable PAT to use cache mode translation tables 2014-11-16 11:04:26 +01:00
mmap.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-15 10:45:39 -07:00
mmio-mod.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
mpx.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-24 09:47:32 -07:00
numa_32.c x86: Fix the initialization of physnode_map 2014-02-01 22:15:51 -08:00
numa_64.c
numa_emulation.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
numa_internal.h
numa.c include/linux/nodemask.h: create next_node_in() helper 2016-05-19 19:12:14 -07:00
pageattr-test.c x86/mm/pat: Make mm/pageattr[-test].c explicitly non-modular 2015-08-25 09:48:38 +02:00
pageattr.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-05-16 15:15:17 -07:00
pat_internal.h x86/mm/pat: Convert to pr_*() usage 2015-05-27 14:40:59 +02:00
pat_rbtree.c x86/mm/pat: Change free_memtype() to support shrinking case 2016-01-05 11:10:23 +01:00
pat.c x86/mm/pat: Fix BUG_ON() in mmap_mem() on QEMU/i386 2016-04-13 11:35:33 +02:00
pf_in.c
pf_in.h
pgtable_32.c x86: Remove set_pmd_pfn 2014-09-01 10:15:31 +02:00
pgtable.c x86, thp: remove infrastructure for handling splitting PMDs 2016-01-15 17:56:32 -08:00
physaddr.c
physaddr.h
pkeys.c mm/core, x86/mm/pkeys: Add execute-only protection keys support 2016-02-18 19:46:33 +01:00
setup_nx.c Revert "x86/mm/32: Set NX in __supported_pte_mask before enabling paging" 2016-04-26 19:52:57 +02:00
srat.c x86/mm: Introduce max_possible_pfn 2015-12-06 12:46:31 +01:00
testmmiotrace.c
tlb.c x86/mm, sched/core: Turn off IRQs in switch_mm() 2016-04-28 11:44:20 +02:00