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| author | Sughosh Ganu <sughosh.ganu@linaro.org> | 2019-12-28 21:31:05 +0300 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-01-07 20:08:22 +0300 |
| commit | f552fa496c9e738afa069dd33578558fe4eb41ee (patch) | |
| tree | afe8191c7038b544bee47a4076346631b1fd645e /lib/efi_loader/Kconfig | |
| parent | 4f24ac08afccd5f51f0b4c7023fc8cf45efe8163 (diff) | |
| download | u-boot-f552fa496c9e738afa069dd33578558fe4eb41ee.tar.xz | |
efi: qemu: arm64: Add efi_rng_protocol implementation for the platform
Add support for the EFI_RNG_PROTOCOL routines for the qemu arm64
platform. EFI_RNG_PROTOCOL is an uefi boottime service which is
invoked by the efi stub in the kernel for getting random seed for
kaslr.
The routines are platform specific, and use the virtio-rng device on
the platform to get random data.
The feature can be enabled through the following config
CONFIG_EFI_RNG_PROTOCOL
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Changed SPDX header to use /* instead of //.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'lib/efi_loader/Kconfig')
| -rw-r--r-- | lib/efi_loader/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index e2cb729303..6727336169 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -121,4 +121,12 @@ config EFI_GRUB_ARM32_WORKAROUND GRUB prior to version 2.04 requires U-Boot to disable caches. This workaround currently is also needed on systems with caches that cannot be managed via CP15. + +config EFI_RNG_PROTOCOL + bool "EFI_RNG_PROTOCOL support" + depends on DM_RNG + help + "Support for EFI_RNG_PROTOCOL implementation. Uses the rng + device on the platform" + endif |