Steve Rutherford ba50e7773a x86/sev: Make enc_dec_hypercall() accept a size instead of npages ... commit ac3f9c9f1b upstream. enc_dec_hypercall() accepted a page count instead of a size, which forced its callers to round up. As a result, non-page aligned vaddrs caused pages to be spuriously marked as decrypted via the encryption status hypercall, which in turn caused consistent corruption of pages during live migration. Live migration requires accurate encryption status information to avoid migrating pages from the wrong perspective. Fixes: 064ce6c550 ("mm: x86: Invoke hypercall when page encryption status is changed") Signed-off-by: Steve Rutherford <srutherford@google.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Tested-by: Ben Hillier <bhillier@google.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230824223731.2055016-1-srutherford@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-09-13 09:43:03 +02:00
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pat	x86/mm: Allow guest.enc_status_change_prepare() to fail	2023-07-19 16:21:00 +02:00
Makefile	…
amdtopology.c	…
cpu_entry_area.c	…
debug_pagetables.c	…
dump_pagetables.c	…
extable.c	…
fault.c	mm: introduce new 'lock_mm_and_find_vma()' page fault helper	2023-07-01 13:16:24 +02:00
highmem_32.c	…
hugetlbpage.c	…
ident_map.c	…
init.c	x86/mm: Use mm_alloc() in poking_init()	2023-08-08 20:03:49 +02:00
init_32.c	…
init_64.c	…
iomap_32.c	…
ioremap.c	…
kasan_init_64.c	…
kaslr.c	x86/mm: Avoid using set_pgd() outside of real PGD pages	2023-06-28 11:12:27 +02:00
kmmio.c	…
kmsan_shadow.c	…
maccess.c	…
mem_encrypt.c	…
mem_encrypt_amd.c	x86/sev: Make enc_dec_hypercall() accept a size instead of npages	2023-09-13 09:43:03 +02:00
mem_encrypt_boot.S	…
mem_encrypt_identity.c	…
mm_internal.h	…
mmap.c	…
mmio-mod.c	…
numa.c	…
numa_32.c	…
numa_64.c	…
numa_emulation.c	…
numa_internal.h	…
pf_in.c	…
pf_in.h	…
pgprot.c	…
pgtable.c	…
pgtable_32.c	…
physaddr.c	…
physaddr.h	…
pkeys.c	…
pti.c	…
srat.c	…
testmmiotrace.c	…
tlb.c	…