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linux-stable/arch/x86/mm
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Joerg Roedel c9f09539e1 x86/head/64: Check SEV encryption before switching to kernel page-table 
When SEV is enabled, the kernel requests the C-bit position again from
the hypervisor to build its own page-table. Since the hypervisor is an
untrusted source, the C-bit position needs to be verified before the
kernel page-table is used.

Call sev_verify_cbit() before writing the CR3.

 [ bp: Massage. ]

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lkml.kernel.org/r/20201028164659.27002-5-joro@8bytes.org
2020-10-29 18:09:59 +01:00
..
pat x86/mm/pat: Don't flush cache if hardware enforces cache coherency across encryption domnains 2020-09-18 10:47:00 +02:00
amdtopology.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
cpu_entry_area.c x86/dumpstack/64: Add noinstr version of get_stack_info() 2020-09-09 11:33:19 +02:00
debug_pagetables.c mm: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
dump_pagetables.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
extable.c This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
fault.c ARM: 2020-10-23 11:17:56 -07:00
highmem_32.c arch/kunmap_atomic: consolidate duplicate code 2020-06-04 19:06:22 -07:00
hugetlbpage.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
ident_map.c x86/mm: Stop pretending pgtable_l5_enabled is a variable 2018-05-19 11:56:57 +02:00
init.c x86/mm: Fix -Wmissing-prototypes warnings for arch/x86/mm/init.c 2020-06-17 10:45:46 +02:00
init_32.c A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
init_64.c x86/mm/64: Update comment in preallocate_vmalloc_pages() 2020-08-15 13:56:16 +02:00
iomap_32.c x86/mm/pat: Rename <asm/pat.h> => <asm/memtype.h> 2019-12-10 10:12:55 +01:00
ioremap.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
kasan_init_64.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
kaslr.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
kmmio.c Misc changes: 2020-06-05 11:18:53 -07:00
maccess.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
Makefile kbuild: remove cc-option test of -fno-stack-protector 2020-07-07 11:13:10 +09:00
mem_encrypt.c x86/head/64: Check SEV encryption before switching to kernel page-table 2020-10-29 18:09:59 +01:00
mem_encrypt_boot.S mm: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
mem_encrypt_identity.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
mm_internal.h x86/mm: thread pgprot_t through init_memory_mapping() 2020-04-10 15:36:21 -07:00
mmap.c x86/mm/mmap: Fix -Wmissing-prototypes warnings 2020-04-22 20:19:48 +02:00
mmio-mod.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
numa.c ACPI updates for 5.10-rc1 2020-10-14 11:42:04 -07:00
numa_32.c x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit 2020-05-28 18:34:30 +02:00
numa_64.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
numa_emulation.c x86/numa: cleanup configuration dependent command-line options 2020-10-13 18:38:27 -07:00
numa_internal.h
pf_in.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pf_in.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pgtable.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
pgtable_32.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
physaddr.c mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
physaddr.h
pkeys.c mm/vma: introduce VM_ACCESS_FLAGS 2020-04-10 15:36:21 -07:00
pti.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
setup_nx.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
srat.c
testmmiotrace.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
tlb.c x86/platform/uv: Remove UV BAU TLB Shootdown Handler 2020-10-07 08:45:39 +02:00