On Fri May 31, 2024 at 4:03 AM EEST, Ross Philipson wrote: > The routine slaunch_setup is called out of the x86 specific setup_arch() > routine during early kernel boot. After determining what platform is > present, various operations specific to that platform occur. This > includes finalizing setting for the platform late launch and verifying > that memory protections are in place. > > For TXT, this code also reserves the original compressed kernel setup > area where the APs were left looping so that this memory cannot be used. > > Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx> > --- > arch/x86/kernel/Makefile | 1 + > arch/x86/kernel/setup.c | 3 + > arch/x86/kernel/slaunch.c | 525 +++++++++++++++++++++++++++++++++++++ > drivers/iommu/intel/dmar.c | 4 + > 4 files changed, 533 insertions(+) > create mode 100644 arch/x86/kernel/slaunch.c > > diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile > index 5d128167e2e2..b35ca99ab0a0 100644 > --- a/arch/x86/kernel/Makefile > +++ b/arch/x86/kernel/Makefile > @@ -76,6 +76,7 @@ obj-$(CONFIG_X86_32) += tls.o > obj-$(CONFIG_IA32_EMULATION) += tls.o > obj-y += step.o > obj-$(CONFIG_INTEL_TXT) += tboot.o > +obj-$(CONFIG_SECURE_LAUNCH) += slaunch.o Hmm... should that be CONFIG_X86_SECURE_LAUNCH? Just asking... BR, Jarkko
