On Sun, Oct 01, 2017 at 03:05:11PM -0500, Brijesh Singh wrote: > I think theoretically a 32-bit host OS can invoke a PSP commands but > currently PSP interface is exposing only the SEV FW command. And SEV Let's cross that bridge when we get to it. > feature is available when we are in 64-bit mode hence for now its okay > to have depends on X86_64. I will add CRYPTO_DEV_CCP_DD depend on > CPU_SUP_AMD || ARM64 and CRYPTO_DEV_SP_PSP depend on X86_64 and send you > v4.2. No, please add my patch below to your set for the CRYPTO_DEV_CCP_DD dependency as it is a separate thing. Your patch should concentrate only on adding the PSP and its dependencies. Thx. --- From: Borislav Petkov <bp@xxxxxxx> Date: Sat, 30 Sep 2017 10:06:27 +0200 Subject: [PATCH] crypto: ccp: Build the AMD secure processor driver only with AMD CPU support This is AMD-specific hardware so present it in Kconfig only when AMD CPU support is enabled or on ARM64 where it is also used. Signed-off-by: Borislav Petkov <bp@xxxxxxx> Cc: Brijesh Singh <brijesh.singh@xxxxxxx> Cc: Tom Lendacky <thomas.lendacky@xxxxxxx> Cc: Gary Hook <gary.hook@xxxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: linux-crypto@xxxxxxxxxxxxxxx --- drivers/crypto/ccp/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig index 627f3e61dcac..f19f57162225 100644 --- a/drivers/crypto/ccp/Kconfig +++ b/drivers/crypto/ccp/Kconfig @@ -1,5 +1,6 @@ config CRYPTO_DEV_CCP_DD tristate "Secure Processor device driver" + depends on CPU_SUP_AMD || ARM64 default m help Provides AMD Secure Processor device driver. -- 2.13.0 SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
