[ Upstream commit 2ad01eb5fa ]
When parameters are sent the PSP returns back it's own signature
for the application to verify the authenticity of the result.
Display this signature to the caller instead of the one the caller
sent.
Fixes: f40d42f116 ("crypto: ccp - Add a sample python script for Dynamic Boost Control")
Fixes: febe3ed322 ("crypto: ccp - Add a sample library for ioctl use")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 70f242c193 ]
The sample application was taking values from ioctl() and treating
those as the error codes to present to a user.
This is incorrect when ret is non-zero, the error is stored to `errno`.
Use this value instead.
Fixes: f40d42f116 ("crypto: ccp - Add a sample python script for Dynamic Boost Control")
Fixes: febe3ed322 ("crypto: ccp - Add a sample library for ioctl use")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Add a small shared library that demonstrates the usage of the
IOCTL interface. This library can be linked to but, is
intended to be loaded and used by higher level languages
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
