On Thu May 4, 2023 at 5:50 PM EEST, Ross Philipson wrote: > From: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx> > > The Secure Launch platform module is a late init module. During the > init call, the TPM event log is read and measurements taken in the > early boot stub code are located. These measurements are extended > into the TPM PCRs using the mainline TPM kernel driver. > > The platform module also registers the securityfs nodes to allow > access to TXT register fields on Intel along with the fetching of > and writing events to the late launch TPM log. > > Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx> > Signed-off-by: garnetgrimm <grimmg@xxxxxxxxxxxx> > Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx> > --- > arch/x86/kernel/Makefile | 1 + > arch/x86/kernel/slmodule.c | 520 +++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 521 insertions(+) > create mode 100644 arch/x86/kernel/slmodule.c > > diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile > index 3d2a33e..ee3fe300 100644 > --- a/arch/x86/kernel/Makefile > +++ b/arch/x86/kernel/Makefile > @@ -73,6 +73,7 @@ obj-$(CONFIG_IA32_EMULATION) += tls.o > obj-y += step.o > obj-$(CONFIG_INTEL_TXT) += tboot.o > obj-$(CONFIG_SECURE_LAUNCH) += slaunch.o > +obj-$(CONFIG_SECURE_LAUNCH) += slmodule.o > obj-$(CONFIG_ISA_DMA_API) += i8237.o > obj-y += stacktrace.o > obj-y += cpu/ > diff --git a/arch/x86/kernel/slmodule.c b/arch/x86/kernel/slmodule.c > new file mode 100644 > index 0000000..70dcff5 > --- /dev/null > +++ b/arch/x86/kernel/slmodule.c > @@ -0,0 +1,520 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Secure Launch late validation/setup, securityfs exposure and > + * finalization support. /* Secure Launch late validation/setup, securityfs exposure and finalization */ 79 characters (max length allowed is 100). BR, Jarkko
