Rafael J. Wysocki d158cbdf39 Hibernation: Arbitrary boot kernel support on x86_64 ... Make it possible to restore a hibernation image on x86_64 with the help of a kernel different from the one in the image. The idea is to split the core restoration code into two separate parts and to place each of them in a different page.  The first part belongs to the boot kernel and is executed as the last step of the image kernel's memory restoration procedure.  Before being executed, it is relocated to a safe page that won't be overwritten while copying the image kernel pages. The final operation performed by it is a jump to the second part of the core restoration code that belongs to the image kernel and has just been restored. This code makes the CPU switch to the image kernel's page tables and restores the state of general purpose registers (including the stack pointer) from before the hibernation. The main issue with this idea is that in order to jump to the second part of the core restoration code the boot kernel needs to know its address.  However, this address may be passed to it in the image header.  Namely, the part of the image header previously used for checking if the version of the image kernel is correct can be replaced with some architecture specific data that will allow the boot kernel to jump to the right address within the image kernel.  These data should also be used for checking if the image kernel is compatible with the boot kernel (as far as the memory restroration procedure is concerned). It can be done, for example, with the help of a "magic" value that has to be equal in both kernels, so that they can be regarded as compatible. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-10-18 14:37:19 -07:00
..
acpi	s2ram: kill old debugging junk	2007-10-18 14:37:19 -07:00
cpu	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
cpufreq	x86_64: move kernel/cpufreq	2007-10-11 11:17:06 +02:00
.gitignore	.gitignore update for x86 arch	2007-10-17 21:19:04 +02:00
alternative.c	Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86	2007-10-17 13:13:16 -07:00
aperture_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
apic_32.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
apic_64.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
apm_32.c	Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6	2007-10-11 19:18:45 -07:00
asm-offsets_32.c	paravirt: refactor struct paravirt_ops into smaller pv_*_ops	2007-10-16 11:51:29 -07:00
asm-offsets_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
asm-offsets.c	i386: move kernel	2007-10-11 11:17:01 +02:00
audit_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
bootflag.c	i386: move kernel	2007-10-11 11:17:01 +02:00
bugs_64.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
cpuid.c	i386: simplify smp_call_function_single() call sequence in cpuid	2007-10-17 20:16:19 +02:00
crash_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
crash_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
crash_dump_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
crash_dump_64.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
doublefault_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
e820_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
e820_64.c	[x86] remove uses of magic macros for boot_params access	2007-10-16 17:38:31 -07:00
early_printk.c	[x86] remove uses of magic macros for boot_params access	2007-10-16 17:38:31 -07:00
early-quirks_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
efi_32.c	[x86] remove uses of magic macros for boot_params access	2007-10-16 17:38:31 -07:00
efi_stub_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
entry_32.S	Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen	2007-10-17 11:10:11 -07:00
entry_64.S	x86: return correct error code from child_rip in x86_64 entry.S	2007-10-17 20:15:29 +02:00
genapic_64.c	x86: remove x86_cpu_to_log_apicid	2007-10-17 20:16:24 +02:00
genapic_flat_64.c	x86: remove x86_cpu_to_log_apicid	2007-10-17 20:16:24 +02:00
geode_32.c	x86: Geode Multi-Function General Purpose Timers support	2007-10-12 23:04:06 +02:00
head64.c	[x86] remove uses of magic macros for boot_params access	2007-10-16 17:38:31 -07:00
head_32.S	i386: print better early fault info	2007-10-17 20:16:56 +02:00
head_64.S	x86_64: move kernel	2007-10-11 11:17:24 +02:00
hpet.c	x86: HPET force enable for ICH5	2007-10-12 23:04:24 +02:00
i386_ksyms_32.c	x86: convert mm_context_t semaphore to a mutex	2007-10-17 20:17:05 +02:00
i387_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
i387_64.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
i8237.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
i8253.c	x86_64: remove now unused code	2007-10-12 23:04:23 +02:00
i8259_32.c	x86: clean up struct irqaction initializers	2007-10-17 20:16:06 +02:00
i8259_64.c	x86: more struct irqaction initializer cleanups	2007-10-17 20:16:07 +02:00
init_task_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
init_task_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
io_apic_32.c	x86: make io_apic not connected pin print complete	2007-10-17 20:16:57 +02:00
io_apic_64.c	x86: make io_apic not connected pin print complete	2007-10-17 20:16:57 +02:00
ioport_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
ioport_64.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
irq_32.c	x86: also show non-zero IRQ counts for vectors that currently don't have a handler	2007-10-17 20:16:54 +02:00
irq_64.c	x86: also show non-zero IRQ counts for vectors that currently don't have a handler	2007-10-17 20:16:54 +02:00
k8.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
kprobes_32.c	kprobes: support kretprobe blacklist	2007-10-16 09:43:10 -07:00
kprobes_64.c	kprobes: support kretprobe blacklist	2007-10-16 09:43:10 -07:00
ldt_32.c	x86: convert mm_context_t semaphore to a mutex	2007-10-17 20:17:05 +02:00
ldt_64.c	x86: convert mm_context_t semaphore to a mutex	2007-10-17 20:17:00 +02:00
machine_kexec_32.c	add-vmcore: add a prefix "VMCOREINFO_" to the vmcoreinfo macros	2007-10-17 08:42:54 -07:00
machine_kexec_64.c	add-vmcore: add a prefix "VMCOREINFO_" to the vmcoreinfo macros	2007-10-17 08:42:54 -07:00
Makefile	x86: delete vsyscall files during make clean	2007-10-17 21:56:01 +02:00
Makefile_32	x86: fix kernel rebuild due to vsyscall fallout	2007-10-17 21:19:23 +02:00
Makefile_64	x86_64: remove now unused code	2007-10-12 23:04:23 +02:00
mca_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
mce_64.c	x86: clean up mce= argument parsing slightly	2007-10-17 20:16:32 +02:00
mce_amd_64.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
mce_intel_64.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
mfgpt_32.c	x86: Geode MFGPT clock event device support	2007-10-12 23:04:06 +02:00
microcode.c	i386: move kernel	2007-10-11 11:17:01 +02:00
module_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
module_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
mpparse_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
mpparse_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
msr.c	i386: Misc cpuinit annotations	2007-10-17 20:16:00 +02:00
nmi_32.c	x86: Fix irq0 / local apic timer accounting	2007-10-12 23:04:06 +02:00
nmi_64.c	x86: Fix irq0 / local apic timer accounting	2007-10-12 23:04:07 +02:00
numaq_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
paravirt_32.c	paravirt: clean up lazy mode handling	2007-10-16 11:51:29 -07:00
pci-calgary_64.c	x86: calgary get rid of translate_phb	2007-10-17 20:16:41 +02:00
pci-dma_32.c	i386: Clean up duplicate includes in arch/i386/kernel/	2007-10-17 20:15:51 +02:00
pci-dma_64.c	x86: use dev_to_node() to get node for device in dma_alloc_pages()	2007-10-17 20:15:47 +02:00
pci-gart_64.c	x86: Some cleanups for pci gart code	2007-10-17 20:16:10 +02:00
pci-nommu_64.c	x86-64: update nommu to sg helpers	2007-10-16 11:26:02 +02:00
pci-swiotlb_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
pcspeaker.c	i386: move kernel	2007-10-11 11:17:01 +02:00
pmtimer_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
process_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
process_64.c	kprobes: support kretprobe blacklist	2007-10-16 09:43:10 -07:00
ptrace_32.c	x86: convert mm_context_t semaphore to a mutex	2007-10-17 20:17:05 +02:00
ptrace_64.c	x86: convert mm_context_t semaphore to a mutex	2007-10-17 20:17:00 +02:00
quirks.c	x86: HPET add another ICH7 PCI id	2007-10-12 23:04:24 +02:00
reboot_32.c	Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6	2007-10-11 19:18:45 -07:00
reboot_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
reboot_fixups_32.c	PCI: pci_get_device call from interrupt in reboot fixups	2007-10-12 15:03:15 -07:00
relocate_kernel_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
relocate_kernel_64.S	x86_64: move kernel	2007-10-11 11:17:24 +02:00
scx200_32.c	long vs. unsigned long - low-hanging fruits in drivers	2007-10-14 12:41:51 -07:00
setup64.c	[x86] remove uses of magic macros for boot_params access	2007-10-16 17:38:31 -07:00
setup_32.c	[x86] remove uses of magic macros for boot_params access	2007-10-16 17:38:31 -07:00
setup_64.c	x86: Use string instruction memcpy on AMD Fam11h	2007-10-17 20:16:58 +02:00
sigframe_32.h	i386: move kernel	2007-10-11 11:17:01 +02:00
signal_32.c	i386: remove unnecessary code	2007-10-17 20:17:01 +02:00
signal_64.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
smp_32.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
smp_64.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
smpboot_32.c	x86: misc. constifications	2007-10-17 20:16:08 +02:00
smpboot_64.c	x86: remove x86_cpu_to_log_apicid	2007-10-17 20:16:24 +02:00
smpcommon_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
srat_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
stacktrace.c	x86: constify stacktrace_ops	2007-10-17 20:16:11 +02:00
summit_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
suspend_64.c	Hibernation: Arbitrary boot kernel support on x86_64	2007-10-18 14:37:19 -07:00
suspend_asm_64.S	Hibernation: Arbitrary boot kernel support on x86_64	2007-10-18 14:37:19 -07:00
sys_i386_32.c	remove include/asm-*/ipc.h	2007-10-17 08:42:55 -07:00
sys_x86_64.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
syscall_64.c	i386/x86_64: move headers to include/asm-x86	2007-10-11 11:20:03 +02:00
syscall_table_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
sysenter_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
tce_64.c	x86: Create clflush() inline, remove hardcoded wbinvd	2007-10-17 20:16:12 +02:00
time_32.c	x86: Fix irq0 / local apic timer accounting	2007-10-12 23:04:06 +02:00
time_64.c	x86_64: remove now unused code	2007-10-12 23:04:23 +02:00
topology.c	i386: no need to make enable_cpu_hotplug a variable	2007-10-17 20:16:16 +02:00
trampoline_32.S	x86: misc. constifications	2007-10-17 20:16:08 +02:00
trampoline_64.S	x86: misc. constifications	2007-10-17 20:16:08 +02:00
traps_32.c	i386: clean up oops/bug reports	2007-10-17 20:16:52 +02:00
traps_64.c	x86: constify stacktrace_ops	2007-10-17 20:16:11 +02:00
tsc_32.c	x86: do not crash on non-Geode PCs in TSC probe	2007-10-17 20:15:37 +02:00
tsc_64.c	x86: unify timex.h variants	2007-10-12 23:04:23 +02:00
tsc_sync.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
verify_cpu_64.S	x86_64: move kernel	2007-10-11 11:17:24 +02:00
vm86_32.c	Delete filenames in comments.	2007-10-13 10:01:23 -07:00
vmi_32.c	paravirt: clean up lazy mode handling	2007-10-16 11:51:29 -07:00
vmiclock_32.c	i386: move kernel	2007-10-11 11:17:01 +02:00
vmlinux_32.lds.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vmlinux_64.lds.S	x86_64: move kernel	2007-10-11 11:17:24 +02:00
vmlinux.lds.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vsmp_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00
vsyscall_32.lds.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vsyscall_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vsyscall_64.c	x86: remove duplicated vsyscall nsec update	2007-10-17 20:17:02 +02:00
vsyscall-int80_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vsyscall-note_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vsyscall-sigreturn_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
vsyscall-sysenter_32.S	i386: move kernel	2007-10-11 11:17:01 +02:00
x8664_ksyms_64.c	x86_64: move kernel	2007-10-11 11:17:24 +02:00