Messages in this thread | | | From | "Kirill A. Shutemov" <> | Subject | [PATCHv2 0/3] x86/tdx: Fix one more load_unaligned_zeropad() issue | Date | Fri, 26 May 2023 15:02:22 +0300 |
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During review of TDX guests on Hyper-V patchset Dave pointed to the potential race between changing page private/shared status and load_unaligned_zeropad().
Fix the issue.
v2: - Add more info in commit message of the first patch. - Move enc_status_change_finish_noop() into a separate patch. - Fix typo in commit message and comment.
Kirill A. Shutemov (3): x86/mm: Allow guest.enc_status_change_prepare() to fail x86/tdx: Fix race between set_memory_encrypted() and load_unaligned_zeropad() x86/mm: Fix enc_status_change_finish_noop()
arch/x86/coco/tdx/tdx.c | 56 +++++++++++++++++++++++++++++++-- arch/x86/include/asm/x86_init.h | 2 +- arch/x86/kernel/x86_init.c | 4 +-- arch/x86/mm/mem_encrypt_amd.c | 4 ++- arch/x86/mm/pat/set_memory.c | 3 +- 5 files changed, 61 insertions(+), 8 deletions(-)
-- 2.39.3
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