diff options
| author | Dov Murik <dovmurik@linux.ibm.com> | 2022-04-12 23:21:26 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2022-04-13 19:11:20 +0200 |
| commit | 20ffd9205ef60fca8912bc9df1602bb627756602 (patch) | |
| tree | ac5b80804d72393998b4fd017c23cffea7ed772a /Documentation/security/index.rst | |
| parent | virt: Add efi_secret module to expose confidential computing secrets (diff) | |
| download | linux-20ffd9205ef60fca8912bc9df1602bb627756602.tar.xz linux-20ffd9205ef60fca8912bc9df1602bb627756602.zip | |
efi: Register efi_secret platform device if EFI secret area is declared
During efi initialization, check if coco_secret is defined in the EFI
configuration table; in such case, register platform device
"efi_secret". This allows udev to automatically load the efi_secret
module (platform driver), which in turn will populate the
<securityfs>/secrets/coco directory in guests into which secrets were
injected.
Note that a declared address of an EFI secret area doesn't mean that
secrets where indeed injected to that area; if the secret area is not
populated, the driver will not load (but the platform device will still
be registered).
Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://lore.kernel.org/r/20220412212127.154182-4-dovmurik@linux.ibm.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'Documentation/security/index.rst')
0 files changed, 0 insertions, 0 deletions