9e78ab2b0f
Add support for trusted boot using a vTPM 2.0 on the IBM IEEE1275 PowerPC platform. With this patch grub now measures text and binary data into the TPM's PCRs 8 and 9 in the same way as the x86_64 platform does. This patch requires Daniel Axtens's patches for claiming more memory. Note: The tpm_init() function cannot be called from GRUB_MOD_INIT() since it does not find the device nodes upon module initialization and therefore the call to tpm_init() must be deferred to grub_tpm_measure(). For vTPM support to work on PowerVM, system driver levels 1010.30 or 1020.00 are required. Note: Previous versions of firmware levels with the 2hash-ext-log API call have a bug that, once this API call is invoked, has the effect of disabling the vTPM driver under Linux causing an error message to be displayed in the Linux kernel log. Those users will have to update their machines to the firmware levels mentioned above. Cc: Eric Snowberg <eric.snowberg@oracle.com> Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Daniel Axtens <dja@axtens.net> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com> Reviewed-by: Robbie Harwood <rharwood@redhat.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'