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840c2baf2d
android_kernel_xiaomi_sm8350/arch/x86/kernel
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Joseph Cihula 840c2baf2d x86, intel_txt: Intel TXT reboot/halt shutdown support 
Support for graceful handling of kernel reboots after an Intel(R) TXT launch.

Without this patch, attempting to reboot or halt the system will cause the
TXT hardware to lock memory upon system restart because the secrets-in-memory
flag that was set on launch was never cleared.  This will in turn cause BIOS
to execute a TXT Authenticated Code Module (ACM) that will scrub all of memory
and then unlock it.  Depending on the amount of memory in the system and its type,
this may take some time.

This patch creates a 1:1 address mapping to the tboot module and then calls back
into tboot so that it may properly and securely clean up system state and clear
the secrets-in-memory flag.  When it has completed these steps, the tboot module
will reboot or halt the system.

 arch/x86/kernel/reboot.c |    8 ++++++++
 init/main.c              |    3 +++
 2 files changed, 11 insertions(+)

Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-07-21 11:49:31 -07:00
..
acpi Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24 01:19:50 -04:00
apic Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-07-17 10:51:55 -07:00
cpu Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-07-10 14:25:03 -07:00
.gitignore
alternative.c
amd_iommu_init.c amd-iommu: set evt_buf_size correctly 2009-07-02 18:32:05 +02:00
amd_iommu.c x86: Mark device_nb as static and fix NULL noise 2009-07-01 16:52:53 +02:00
aperture_64.c
apm_32.c PM core: rename suspend and resume functions 2009-06-12 21:32:31 +02:00
asm-offsets_32.c lguest: optimize by coding restore_flags and irq_enable in assembler. 2009-06-12 22:27:03 +09:30
asm-offsets_64.c x86, boot: make kernel_alignment adjustable; new bzImage fields 2009-05-11 17:44:39 -07:00
asm-offsets.c
audit_64.c
bios_uv.c
bootflag.c
check.c
cpuid.c Driver Core: x86: add nodename for cpuid and msr drivers. 2009-06-15 21:30:25 -07:00
crash_dump_32.c
crash_dump_64.c
crash.c x86: disable IOMMUs on kernel crash 2009-06-15 15:20:40 +02:00
doublefault_32.c
ds_selftest.c x86, ds: fix buffer alignment in debug store selftest 2009-04-24 10:18:51 +02:00
ds_selftest.h
ds.c
dumpstack_32.c perf_counter: Ignore the nmi call frames in the x86-64 backtraces 2009-07-01 22:37:23 +02:00
dumpstack_64.c perf_counter: Ignore the nmi call frames in the x86-64 backtraces 2009-07-01 22:37:23 +02:00
dumpstack.c x86: Add sysctl to allow panic on IOCK NMI error 2009-06-25 22:06:11 +02:00
dumpstack.h x86: avoid multiple declaration of kstack_depth_to_print 2009-04-14 11:45:33 +02:00
e820.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
early_printk.c
early-quirks.c
efi_32.c
efi_64.c
efi_stub_32.S
efi_stub_64.S
efi.c x86: correct the conversion of EFI memory types 2009-06-16 17:47:32 -07:00
entry_32.S Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
entry_64.S function-graph: add stack frame test 2009-06-18 18:40:18 -04:00
ftrace.c function-graph: add stack frame test 2009-06-18 18:40:18 -04:00
geode_32.c
head32.c
head64.c
head_32.S x86: de-assembler-ize asm/desc.h 2009-06-17 21:35:10 -07:00
head_64.S x86: de-assembler-ize asm/desc.h 2009-06-17 21:35:10 -07:00
head.c
hpet.c x86: hpet: Mark per cpu interrupts IRQF_TIMER to prevent resume failure 2009-06-14 18:24:29 +02:00
i386_ksyms_32.c
i387.c
i8237.c
i8253.c time: move PIT_TICK_RATE to linux/timex.h 2009-06-16 19:47:27 -07:00
i8259.c
init_task.c mm: consolidate init_mm definition 2009-06-16 19:47:28 -07:00
io_delay.c
ioport.c
irq_32.c
irq_64.c
irq.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
irqinit.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
k8.c
kdebugfs.c
kgdb.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 15:49:10 -07:00
kprobes.c
kvm.c x86, kvm: Fix section mismatches in kvm.c 2009-07-03 14:34:22 +02:00
kvmclock.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
ldt.c
machine_kexec_32.c x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP 2009-05-07 22:01:05 -07:00
machine_kexec_64.c x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP 2009-05-07 22:01:05 -07:00
Makefile x86, intel_txt: Intel TXT boot support 2009-07-21 11:49:06 -07:00
mca_32.c
mfgpt_32.c
microcode_amd.c x86, microcode: Simplify vfree() use 2009-06-07 16:35:11 +02:00
microcode_core.c Driver Core: misc: add nodename support for misc devices. 2009-06-15 21:30:25 -07:00
microcode_intel.c x86: microcode: use smp_call_function_single instead of set_cpus_allowed, cleanup of synchronization logic 2009-05-12 10:36:44 +02:00
mmconf-fam10h_64.c
module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpparse.c x86, irq: don't call mp_config_acpi_gsi() if update_mptable is not enabled 2009-05-18 09:33:29 +02:00
msr.c Driver Core: x86: add nodename for cpuid and msr drivers. 2009-06-15 21:30:25 -07:00
olpc.c
paravirt_patch_32.c
paravirt_patch_64.c
paravirt-spinlocks.c
paravirt.c Merge branch 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 16:16:27 -07:00
pci-calgary_64.c x86: calgary: remove IOMMU_DEBUG 2009-04-14 13:03:36 +02:00
pci-dma.c intel-iommu: Make iommu=pt work on i386 too 2009-07-01 18:56:16 +01:00
pci-gart_64.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
pci-nommu.c
pci-swiotlb.c Merge git://git.infradead.org/~dwmw2/iommu-2.6.31 2009-06-22 21:38:22 -07:00
pcspeaker.c
pmtimer_64.c
probe_roms_32.c
process_32.c Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 19:53:40 -07:00
process_64.c Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 19:53:40 -07:00
process.c kmemcheck: add mm functions 2009-06-15 12:40:03 +02:00
ptrace.c x86, bts, mm: clean up buffer allocation 2009-04-24 10:18:52 +02:00
pvclock.c x86: Fix warning in pvclock.c 2009-07-14 16:25:05 +02:00
quirks.c Merge branch 'linus' into x86/cpu 2009-06-07 12:22:15 +02:00
reboot_fixups_32.c
reboot.c x86, intel_txt: Intel TXT reboot/halt shutdown support 2009-07-21 11:49:31 -07:00
relocate_kernel_32.S
relocate_kernel_64.S
rtc.c
scx200_32.c
setup_percpu.c x86: ensure percpu lpage doesn't consume too much vmalloc space 2009-06-22 11:56:24 +09:00
setup.c x86, intel_txt: Intel TXT boot support 2009-07-21 11:49:06 -07:00
signal.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
smp.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
smpboot.c x86: make zap_low_mapping could be used early 2009-06-12 13:50:24 +03:00
stacktrace.c x86: add save_stack_trace_bp() for tracing from a specific stack frame 2009-06-12 23:01:05 +02:00
step.c
sys_i386_32.c
sys_x86_64.c
syscall_64.c
syscall_table_32.S Merge branch 'core/signal' into perfcounters/core 2009-04-30 21:16:49 +02:00
tboot.c x86, intel_txt: Intel TXT boot support 2009-07-21 11:49:06 -07:00
tce_64.c
test_nx.c
test_rodata.c
time_32.c
time_64.c
tlb_uv.c x86: Fix uv bau sending buffer initialization 2009-06-24 17:33:58 +02:00
tls.c
tls.h
topology.c
trampoline_32.S
trampoline_64.S
trampoline.c
traps.c x86: Add sysctl to allow panic on IOCK NMI error 2009-06-25 22:06:11 +02:00
tsc_sync.c x86: clean up arch/x86/kernel/tsc_sync.c a bit 2009-05-07 09:32:10 +02:00
tsc.c Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:57:40 -07:00
uv_irq.c
uv_sysfs.c
uv_time.c uv_time: add parameter to uv_read_rtc() 2009-04-22 17:41:25 +02:00
verify_cpu_64.S
visws_quirks.c
vm86_32.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 16:15:14 -07:00
vmi_32.c
vmiclock_32.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
vmlinux.lds.S x86: Provide _sdata in the vmlinux.lds.S file 2009-06-12 09:21:33 +02:00
vsmp_64.c
vsyscall_64.c x86: move rdtsc_barrier() into the TSC vread method 2009-05-28 14:15:54 +02:00
x8664_ksyms_64.c
xsave.c x86-64: fix FPU corruption with signals and preemption 2009-04-20 14:33:00 -07:00