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linux/arch/x86/mm
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Peter Zijlstra 0521e8be21 x86/mm/cpa: Fix set_mce_nospec() 
The recent commit fe0937b24f ("x86/mm/cpa: Fold cpa_flush_range() and
cpa_flush_array() into a single cpa_flush() function") accidentally made
the call to make_addr_canonical_again() go away, which breaks
set_mce_nospec().

Re-instate the call to convert the address back into canonical form right
before invoking either CLFLUSH or INVLPG. Rename the function while at it
to be shorter (and less MAGA).

Fixes: fe0937b24f ("x86/mm/cpa: Fold cpa_flush_range() and cpa_flush_array() into a single cpa_flush() function")
Reported-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Tony Luck <tony.luck@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Rik van Riel <riel@surriel.com>
Link: https://lkml.kernel.org/r/20190208120859.GH32511@hirez.programming.kicks-ass.net
2019-02-08 14:31:56 +01:00
..
amdtopology.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
cpu_entry_area.c x86/pti/64: Remove the SYSCALL64 entry trampoline 2018-09-12 21:33:53 +02:00
debug_pagetables.c x86/mm/dump_pagetables: Use DEFINE_SHOW_ATTRIBUTE() 2018-12-18 13:05:54 +01:00
dump_pagetables.c kasan: rename kasan_zero_page to kasan_early_shadow_page 2018-12-28 12:11:43 -08:00
extable.c x86/mm: Fix typo in comment 2018-10-03 16:14:05 +02:00
fault.c x86/fault: Fix sign-extend unintended sign extension 2019-01-29 21:58:59 +01:00
highmem_32.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
hugetlbpage.c x86/compat: Adjust in_compat_syscall() to generic code under !COMPAT 2018-11-01 12:59:25 +01:00
ident_map.c x86/mm: Stop pretending pgtable_l5_enabled is a variable 2018-05-19 11:56:57 +02:00
init.c mm: make free_reserved_area() return "const char *" 2018-12-28 12:11:48 -08:00
init_32.c mm, memory_hotplug: add nid parameter to arch_remove_memory 2018-12-28 12:11:49 -08:00
init_64.c mm, memory_hotplug: add nid parameter to arch_remove_memory 2018-12-28 12:11:49 -08:00
iomap_32.c x86/mm: Do not auto-massage page protections 2018-04-12 09:04:22 +02:00
ioremap.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
kasan_init_64.c kasan: rename kasan_zero_page to kasan_early_shadow_page 2018-12-28 12:11:43 -08:00
kaslr.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
kmmio.c x86/mm/kmmio: Make the tracer robust against L1TF 2018-08-08 22:28:34 +02:00
Makefile x86/mm/sme: Disable stack protection for mem_encrypt_identity.c 2018-02-28 15:24:12 +01:00
mem_encrypt.c dma-direct: merge swiotlb_dma_ops into the dma_direct code 2018-12-13 21:06:17 +01:00
mem_encrypt_boot.S x86/mm/sme, objtool: Annotate indirect call in sme_encrypt_execute() 2018-02-21 09:05:04 +01:00
mem_encrypt_identity.c x86/mm/mem_encrypt: Fix erroneous sizeof() 2019-01-15 11:41:58 +01:00
mm_internal.h x86/mm/cpa: Optimize cpa_flush_array() TLB invalidation 2018-12-17 18:54:26 +01:00
mmap.c x86/compat: Adjust in_compat_syscall() to generic code under !COMPAT 2018-11-01 12:59:25 +01:00
mmio-mod.c x86: do not use print_symbol() 2018-01-05 15:23:01 +01:00
mpx.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
numa.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
numa_32.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
numa_64.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
numa_emulation.c Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix 2018-11-03 23:42:16 +01:00
numa_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pageattr-test.c x86/mm/cpa: Simplify the code after making cpa->vaddr invariant 2018-12-17 18:54:25 +01:00
pageattr.c x86/mm/cpa: Fix set_mce_nospec() 2019-02-08 14:31:56 +01:00
pat.c x86/mm: Fix decoy address handling vs 32-bit builds 2018-12-11 18:28:20 -08:00
pat_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pat_rbtree.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pf_in.c x86/mm: Audit and remove any unnecessary uses of module.h 2016-07-14 13:04:20 +02:00
pf_in.h
pgtable.c mm: treewide: remove unused address argument from pte_alloc functions 2019-01-04 13:13:47 -08:00
pgtable_32.c x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]() 2018-02-15 01:15:52 +01:00
physaddr.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
physaddr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pkeys.c x86/pkeys: Make init_pkru_value static 2018-12-03 19:10:18 +01:00
pti.c x86/pti/64: Remove the SYSCALL64 entry trampoline 2018-09-12 21:33:53 +02:00
setup_nx.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
srat.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
testmmiotrace.c Annotate hardware config module parameters in arch/x86/mm/ 2017-04-04 16:54:21 +01:00
tlb.c x86/mm/cpa: Optimize cpa_flush_array() TLB invalidation 2018-12-17 18:54:26 +01:00