tpm: Enable TCG_TPM2_HMAC by default only for X86_64

Given the not fully root caused performance issues on non-x86 platforms, enable the feature by default only for x86-64. That is the platform it brings the most value and has gone most of the QA. Can be reconsidered later and can be obviously opt-in enabled too on any arch. Link: https://lore.kernel.org/linux-integrity/[email protected]/#t Signed-off-by: Jarkko Sakkinen <[email protected]>
chewitt · May 28, 2024 · d3e43a8 · d3e43a8
1 parent f09fc6c
commit d3e43a8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
@@ -29,7 +29,7 @@ if TCG_TPM
 
 config TCG_TPM2_HMAC
 	bool "Use HMAC and encrypted transactions on the TPM bus"
-	default y
+	default X86_64
 	select CRYPTO_ECDH
 	select CRYPTO_LIB_AESCFB
 	select CRYPTO_LIB_SHA256