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f3476bc770
The sev-guest driver encryption code uses the crypto API for SNP guest messaging with the AMD Security processor. In order to enable secure TSC, SEV-SNP guests need to send such a TSC_INFO message before the APs are booted. Details from the TSC_INFO response will then be used to program the VMSA before the APs are brought up. However, the crypto API is not available this early in the boot process. In preparation for moving the encryption code out of sev-guest to support secure TSC and to ease review, switch to using the AES GCM library implementation instead. Drop __enc_payload() and dec_payload() helpers as both are small and can be moved to the respective callers. Signed-off-by: Nikunj A Dadhania <nikunj@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Acked-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Peter Gonda <pgonda@google.com> Link: https://lore.kernel.org/r/20241009092850.197575-2-nikunj@amd.com |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| mm | ||
| net | ||
| rust | ||
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| security | ||
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| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.