From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Fri, 25 Jan 2019 16:03:04 +0100 Subject: [Buildroot] [PATCH v3] tpm2-tools: drop dependency on tpm2-abrmd Message-ID: <20190125150304.16661-1-peter@korsgaard.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net tpm2-tools is commonly used with the resource manager, tpm2-abrmd - But it CAN be used without, E.G. by setting the TPM2TOOLS_TCTI_NAME environment variable to communicate directly with the kernel driver: export TPM2TOOLS_TCTI_NAME=device Either directly with the TPM device (/dev/tpmN) or through the in-kernel resource manager provided by Linux kernel since 4.12 (/dev/tpmrmN) For some use cases (E.G. initramfs) it makes sense to use tpm2-tools without abrmd, so remove the tpm2-abrmd select, and instead a note in the help text that it may be needed. Signed-off-by: Peter Korsgaard --- Changes since v2: - Drop the imply and instead add a comment as suggested by Yann and Arnout package/tpm2-tools/Config.in | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/package/tpm2-tools/Config.in b/package/tpm2-tools/Config.in index cc87e2a1bf..d8660a8f71 100644 --- a/package/tpm2-tools/Config.in +++ b/package/tpm2-tools/Config.in @@ -8,7 +8,6 @@ config BR2_PACKAGE_TPM2_TOOLS select BR2_PACKAGE_LIBCURL select BR2_PACKAGE_LIBGLIB2 select BR2_PACKAGE_OPENSSL - select BR2_PACKAGE_TPM2_ABRMD # run-time select BR2_PACKAGE_TPM2_TSS help TPM (Trusted Platform Module) 2.0 CLI tools based on system @@ -17,6 +16,11 @@ config BR2_PACKAGE_TPM2_TOOLS and manage non-volatile storage through a TPM2.0 HW implementation. + Notice: An in-kernel resource manager is provided by the + Linux kernel since 4.12. Depending on use cases and kernel + version, the user space resource manager provided by + tpm2-abrmd may be needed. + https://github.com/tpm2-software/tpm2-tools comment "tpm2-tools needs a toolchain w/ dynamic library, wchar, threads" -- 2.11.0