diff options
| author |   Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2024-01-24 16:02:16 +0200 |
|---|---|---|
| committer |   Borislav Petkov (AMD) <bp@alien8.de> | 2024-01-29 17:08:27 +0100 |
| commit | 4cab62c058f5a150d9960c112362e5c76d204d9d (patch) | |
| tree | 38b3ca003972f4dab425c26ddf110f1baeccf725 /include/linux/bcma/ssh:/git@git.zx2c4.com/git: | |
| parent | x86/sev: Harden #VC instruction emulation somewhat (diff) | |
x86/mm: Fix memory encryption features advertisement
When memory encryption is enabled, the kernel prints the encryption
flavor that the system supports.
The check assumes that everything is AMD SME/SEV if it doesn't have
the TDX CPU feature set.
Hyper-V vTOM sets cc_vendor to CC_VENDOR_INTEL when it runs as L2 guest
on top of TDX, but not X86_FEATURE_TDX_GUEST. Hyper-V only needs memory
encryption enabled for I/O without the rest of CoCo enabling.
To avoid confusion, check the cc_vendor directly.
[ bp: Massage commit message. ]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Jeremi Piotrowski <jpiotrowski@linux.microsoft.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20240124140217.533748-1-kirill.shutemov@linux.intel.com
Diffstat (limited to 'include/linux/bcma/ssh:/git@git.zx2c4.com/git:')
0 files changed, 0 insertions, 0 deletions