From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: dave.hansen@intel.com, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de
Cc: decui@microsoft.com, rick.p.edgecombe@intel.com,
sathyanarayanan.kuppuswamy@linux.intel.com, seanjc@google.com,
thomas.lendacky@amd.com, x86@kernel.org,
linux-kernel@vger.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCH 0/2] x86/tdx: Fix one more load_unaligned_zeropad() issue
Date: Fri, 26 May 2023 01:58:45 +0300 [thread overview]
Message-ID: <20230525225847.28592-1-kirill.shutemov@linux.intel.com> (raw)
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.
Kirill A. Shutemov (2):
x86/mm: Allow guest.enc_status_change_prepare() to fail
x86/tdx: Fix race between set_memory_encrypted() and load_unaligned_zeropad()
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
next reply other threads:[~2023-05-25 22:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-25 22:58 Kirill A. Shutemov [this message]
2023-05-25 22:58 ` [PATCH 1/2] x86/mm: Allow guest.enc_status_change_prepare() to fail Kirill A. Shutemov
2023-05-25 23:28 ` Sathyanarayanan Kuppuswamy
2023-05-26 2:17 ` Huang, Kai
2023-05-26 11:49 ` kirill.shutemov
2023-05-25 22:58 ` [PATCH 2/2] x86/tdx: Fix race between set_memory_encrypted() and load_unaligned_zeropad() Kirill A. Shutemov
2023-05-25 23:40 ` Sathyanarayanan Kuppuswamy
2023-05-26 11:54 ` Kirill A. Shutemov
2023-05-26 2:35 ` [PATCH 0/2] x86/tdx: Fix one more load_unaligned_zeropad() issue Dexuan Cui
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