23 Sep, 2009
1 commit
-
Add missing information about requirements of using the EHCI usb debug
controller as well as to mention you can use a debug controller other
than the first one in the system.Signed-off-by: Jason Wessel
Cc: Ingo Molnar
Cc: Andrew Morton
Cc: Yinghai Lu
Cc: "Eric W. Biederman"
Cc: Alan Stern
Cc: Sarah Sharp
Cc: Randy Dunlap
Signed-off-by: Greg Kroah-Hartman
19 Sep, 2009
1 commit
-
…el/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (38 commits)
x86: Move get/set_wallclock to x86_platform_ops
x86: platform: Fix section annotations
x86: apic namespace cleanup
x86: Distangle ioapic and i8259
x86: Add Moorestown early detection
x86: Add hardware_subarch ID for Moorestown
x86: Add early platform detection
x86: Move tsc_init to late_time_init
x86: Move tsc_calibration to x86_init_ops
x86: Replace the now identical time_32/64.c by time.c
x86: time_32/64.c unify profile_pc
x86: Move calibrate_cpu to tsc.c
x86: Make timer setup and global variables the same in time_32/64.c
x86: Remove mca bus ifdef from timer interrupt
x86: Simplify timer_ack magic in time_32.c
x86: Prepare unification of time_32/64.c
x86: Remove do_timer hook
x86: Add timer_init to x86_init_ops
x86: Move percpu clockevents setup to x86_init_ops
x86: Move xen_post_allocator_init into xen_pagetable_setup_done
...Fix up conflicts in arch/x86/include/asm/io_apic.h
31 Aug, 2009
1 commit
-
x86 bootprotocol 2.07 has introduced hardware_subarch ID in the boot
parameters provided by FW. We use it to identify Moorestown platforms.[ tglx: Cleanup and paravirt fix ]
Signed-off-by: Jacob Pan
Signed-off-by: Thomas Gleixner
22 Jul, 2009
1 commit
-
This patch adds kernel configuration and boot support for Intel Trusted
Execution Technology (Intel TXT).Intel's technology for safer computing, Intel Trusted Execution
Technology (Intel TXT), defines platform-level enhancements that
provide the building blocks for creating trusted platforms.Intel TXT was formerly known by the code name LaGrande Technology (LT).
Intel TXT in Brief:
o Provides dynamic root of trust for measurement (DRTM)
o Data protection in case of improper shutdown
o Measurement and verification of launched environmentIntel TXT is part of the vPro(TM) brand and is also available some
non-vPro systems. It is currently available on desktop systems based on
the Q35, X38, Q45, and Q43 Express chipsets (e.g. Dell Optiplex 755, HP
dc7800, etc.) and mobile systems based on the GM45, PM45, and GS45
Express chipsets.For more information, see http://www.intel.com/technology/security/.
This site also has a link to the Intel TXT MLE Developers Manual, which
has been updated for the new released platforms.A much more complete description of how these patches support TXT, how to
configure a system for it, etc. is in the Documentation/intel_txt.txt file
in this patch.This patch provides the TXT support routines for complete functionality,
documentation for TXT support and for the changes to the boot_params structure,
and boot detection of a TXT launch. Attempts to shutdown (reboot, Sx) the system
will result in platform resets; subsequent patches will support these shutdown modes
properly.Documentation/intel_txt.txt | 210 +++++++++++++++++++++
Documentation/x86/zero-page.txt | 1
arch/x86/include/asm/bootparam.h | 3
arch/x86/include/asm/fixmap.h | 3
arch/x86/include/asm/tboot.h | 197 ++++++++++++++++++++
arch/x86/kernel/Makefile | 1
arch/x86/kernel/setup.c | 4
arch/x86/kernel/tboot.c | 379 +++++++++++++++++++++++++++++++++++++++
security/Kconfig | 30 +++
9 files changed, 827 insertions(+), 1 deletion(-)Signed-off-by: Joseph Cihula
Signed-off-by: Shane Wang
Signed-off-by: Gang Wei
Signed-off-by: H. Peter Anvin
11 Jul, 2009
1 commit
-
exception.txt only explains the code on x86, so it's better to
move it into Documentation/x86 directory.And also rename it to exception-tables.txt which looks much
more reasonable.This patch is on top of the previous one.
Signed-off-by: WANG Cong
Signed-off-by: Randy Dunlap
Signed-off-by: Linus Torvalds
12 Jun, 2009
1 commit
-
Conflicts:
arch/x86/kernel/cpu/mcheck/mce_64.c
arch/x86/kernel/irq.cMerge reason: Resolve the conflicts above.
Signed-off-by: Ingo Molnar
11 Jun, 2009
2 commits
-
This patch introduces three boot options (no_cmci, dont_log_ce
and ignore_ce) to control handling for corrected errors.The "mce=no_cmci" boot option disables the CMCI feature.
Since CMCI is a new feature so having boot controls to disable
it will be a help if the hardware is misbehaving.The "mce=dont_log_ce" boot option disables logging for corrected
errors. All reported corrected errors will be cleared silently.
This option will be useful if you never care about corrected
errors.The "mce=ignore_ce" boot option disables features for corrected
errors, i.e. polling timer and cmci. All corrected events are
not cleared and kept in bank MSRs.Usually this disablement is not recommended, however it will be
a help if there are some conflict with the BIOS or hardware
monitoring applications etc., that clears corrected events in
banks instead of OS.[ And trivial cleanup (space -> tab) for doc is included. ]
Signed-off-by: Hidetoshi Seto
Reviewed-by: Andi Kleen
LKML-Reference:
Signed-off-by: Ingo Molnar -
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (22 commits)
x86: fix system without memory on node0
x86, mm: Fix node_possible_map logic
mm, x86: remove MEMORY_HOTPLUG_RESERVE related code
x86: make sparse mem work in non-NUMA mode
x86: process.c, remove useless headers
x86: merge process.c a bit
x86: use sparse_memory_present_with_active_regions() on UMA
x86: unify 64-bit UMA and NUMA paging_init()
x86: Allow 1MB of slack between the e820 map and SRAT, not 4GB
x86: Sanity check the e820 against the SRAT table using e820 map only
x86: clean up and and print out initial max_pfn_mapped
x86/pci: remove rounding quirk from e820_setup_gap()
x86, e820, pci: reserve extra free space near end of RAM
x86: fix typo in address space documentation
x86: 46 bit physical address support on 64 bits
x86, mm: fault.c, use printk_once() in is_errata93()
x86: move per-cpu mmu_gathers to mm/init.c
x86: move max_pfn_mapped and max_low_pfn_mapped to setup.c
x86: unify noexec handling
x86: remove (null) in /sys kernel_page_tables
...
04 Jun, 2009
1 commit
-
On Intel platforms machine check exceptions are always broadcast to
all CPUs. This patch makes the machine check handler synchronize all
these machine checks, elect a Monarch to handle the event and collect
the worst event from all CPUs and then process it first.This has some advantages:
- When there is a truly data corrupting error the system panics as
quickly as possible. This improves containment of corrupted
data and makes sure the corrupted data never hits stable storage.- The panics are synchronized and do not reenter the panic code
on multiple CPUs (which currently does not handle this well).- All the errors are reported. Currently it often happens that
another CPU happens to do the panic first, but reports useless
information (empty machine check) because the real error
happened on another CPU which came in later.
This is a big advantage on Nehalem where the 8 threads per CPU
lead to often the wrong CPU winning the race and dumping
useless information on a machine check. The problem also occurs
in a less severe form on older CPUs.- The system can detect when no CPUs detected a machine check
and shut down the system. This can happen when one CPU is so
badly hung that that it cannot process a machine check anymore
or when some external agent wants to stop the system by
asserting the machine check pin. This follows Intel hardware
recommendations.- This matches the recommended error model by the CPU designers.
- The events can be output in true severity order
- When a panic happens on another CPU it makes sure to be actually
be able to process the stop IPI by enabling interrupts.The code is extremly careful to handle timeouts while waiting
for other CPUs. It can't rely on the normal timing mechanisms
(jiffies, ktime_get) because of its asynchronous/lockless nature,
so it uses own timeouts using ndelay() and a "SPINUNIT"The timeout is configurable. By default it waits for upto one
second for the other CPUs. This can be also disabled.From some informal testing AMD systems do not see to broadcast
machine checks, so right now it's always disabled by default on
non Intel CPUs or also on very old Intel systems.Includes fixes from Ying Huang
Fixed a "ecception" in a comment (H.Seto)
Moved global_nwo reset later based on suggestion from H.Seto
v2: Avoid duplicate messages[ Impact: feature, fixes long standing problems. ]
Signed-off-by: Andi Kleen
Signed-off-by: Hidetoshi Seto
Signed-off-by: H. Peter Anvin
29 May, 2009
1 commit
-
Document that check_interval set to 0 means no polling.
Noticed by Hidetoshi SetoAlso add a reference from boot options to the sysfs tunables
Acked-by: Hidetoshi Seto
Signed-off-by: Andi Kleen
Signed-off-by: Hidetoshi Seto
Signed-off-by: H. Peter Anvin
18 May, 2009
1 commit
-
after:
| commit b263295dbffd33b0fbff670720fa178c30e3392a
| Author: Christoph Lameter
| Date: Wed Jan 30 13:30:47 2008 +0100
|
| x86: 64-bit, make sparsemem vmemmap the only memory modelwe don't have MEMORY_HOTPLUG_RESERVE anymore.
Historically, x86-64 had an architecture-specific method for memory hotplug
whereby it scanned the SRAT for physical memory ranges that could be
potentially used for memory hot-add later. By reserving those ranges
without physical memory, the memmap would be allocated and left dormant
until needed. This depended on the DISCONTIG memory model which has been
removed so the code implementing HOTPLUG_RESERVE is now dead.This patch removes the dead code used by MEMORY_HOTPLUG_RESERVE.
(Changelog authored by Mel.)
v2: updated changelog, and remove hotadd= in doc
[ Impact: remove dead code ]
Signed-off-by: Yinghai Lu
Reviewed-by: Christoph Lameter
Reviewed-by: Mel Gorman
Workflow-found-OK-by: Andrew Morton
LKML-Reference:
Signed-off-by: Ingo Molnar
12 May, 2009
2 commits
-
A long ago, in days of yore, it all began with a god named Thor.
There were vikings and boats and some plans for a Linux kernel
header. Unfortunately, a single 8-bit field was used for bootloader
type and version. This has generally worked without *too* much pain,
but we're getting close to flat running out of ID fields.Add extension fields for both type and version. The type will be
extended if it the old field is 0xE; the version is a simple MSB
extension.Keep /proc/sys/kernel/bootloader_type containing
(type << 4) + (ver & 0xf) for backwards compatiblity, but also add
/proc/sys/kernel/bootloader_version which contains the full version
number.[ Impact: new feature to support more bootloaders ]
Signed-off-by: H. Peter Anvin
-
Document the new bzImage fields for kernel memory placement.
[ Impact: adds documentation ]
Signed-off-by: H. Peter Anvin
06 May, 2009
2 commits
-
Fix a trivial typo in Documentation/x86/x86_64/mm.txt.
[ Impact: documentation only ]
Signed-off-by: H. Peter Anvin
Cc: Rik van Riel -
Extend the maximum addressable memory on x86-64 from 2^44 to
2^46 bytes. This requires some shuffling around of the vmalloc
and virtual memmap memory areas, to keep them away from the
direct mapping of up to 64TB of physical memory.This patch also introduces a guard hole between the vmalloc
area and the virtual memory map space. There's really no
good reason why we wouldn't have a guard hole there.[ Impact: future hardware enablement ]
Signed-off-by: Rik van Riel
LKML-Reference:
Signed-off-by: H. Peter Anvin
04 Apr, 2009
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)
trivial: Update my email address
trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h
trivial: Fix misspelling of "Celsius".
trivial: remove unused variable 'path' in alloc_file()
trivial: fix a pdlfush -> pdflush typo in comment
trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL
trivial: wusb: Storage class should be before const qualifier
trivial: drivers/char/bsr.c: Storage class should be before const qualifier
trivial: h8300: Storage class should be before const qualifier
trivial: fix where cgroup documentation is not correctly referred to
trivial: Give the right path in Documentation example
trivial: MTD: remove EOL from MODULE_DESCRIPTION
trivial: Fix typo in bio_split()'s documentation
trivial: PWM: fix of #endif comment
trivial: fix typos/grammar errors in Kconfig texts
trivial: Fix misspelling of firmware
trivial: cgroups: documentation typo and spelling corrections
trivial: Update contact info for Jochen Hein
trivial: fix typo "resgister" -> "register"
...
30 Mar, 2009
1 commit
-
cgroup documentation was moved to Documentation/cgroups/. There are some
places that still refer to Documentation/controllers/,
Documentation/cgroups.txt and Documentation/cpusets.txt. Fix those.Signed-off-by: Thadeu Lima de Souza Cascardo
Reviewed-by: Li Zefan
Acked-by: Paul Menage
Signed-off-by: Jiri Kosina
06 Mar, 2009
1 commit
05 Mar, 2009
1 commit
-
[ mingo: small edits and extensions. ]
Signed-off-by: Yinghai Lu
Cc: "Eric W. Biederman"
Cc: Greg KH
Cc: Randy Dunlap
Cc: Alan Stern
Cc: Sarah Sharp
Cc: Andrew Morton
LKML-Reference:
Signed-off-by: Ingo Molnar
04 Mar, 2009
1 commit
-
…setup-lzma', 'x86/signal' and 'x86/urgent' into x86/core
15 Jan, 2009
2 commits
-
Modify field names to the right ones:
- start_sys was changed to start_sys_seg
- iinitrd_addr_max was changed to ramdisk_max
- pad2 was changed to pad2 and pad3
- readmode_swtch was changed to realmode_swtchSigned-off-by: Baodong Chen
Acked-by: Jiri Kosina
Signed-off-by: Ingo Molnar -
Impact: documentation
Update the boot protocol specification to include the currently
supported file formats and their magic numbers.Signed-off-by: H. Peter Anvin
10 Jan, 2009
1 commit
-
…git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits)
x86: fix section mismatch warnings in mcheck/mce_amd_64.c
x86: offer frame pointers in all build modes
x86: remove duplicated #include's
x86: k8 numa register active regions later
x86: update Alan Cox's email addresses
x86: rename all fields of mpc_table mpc_X to X
x86: rename all fields of mpc_oemtable oem_X to X
x86: rename all fields of mpc_bus mpc_X to X
x86: rename all fields of mpc_cpu mpc_X to X
x86: rename all fields of mpc_intsrc mpc_X to X
x86: rename all fields of mpc_lintsrc mpc_X to X
x86: rename all fields of mpc_iopic mpc_X to X
x86: irqinit_64.c init_ISA_irqs should be static
Documentation/x86/boot.txt: payload length was changed to payload_length
x86: setup_percpu.c fix style problems
x86: irqinit_64.c fix style problems
x86: irqinit_32.c fix style problems
x86: i8259.c fix style problems
x86: irq_32.c fix style problems
x86: ioport.c fix style problems
...
07 Jan, 2009
1 commit
-
Update several Documentation/ files and a few sub-dir files (only one
change in each) to reflect changed header files locations.Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Jan, 2009
1 commit
-
Signed-off-by: Baodong Chen
Acked-by: Jiri Kosina
Signed-off-by: Ingo Molnar
23 Dec, 2008
1 commit
-
…86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core
20 Dec, 2008
1 commit
-
Impact: Documentation only.
Documentation updates as per Randy Dunlap's comments.
Signed-off-by: Venkatesh Pallipadi
Signed-off-by: Suresh Siddha
Signed-off-by: H. Peter Anvin
19 Dec, 2008
1 commit
-
Impact: Documentation only.
Add documentation related to pgprot_* change.
Signed-off-by: Venkatesh Pallipadi
Signed-off-by: Suresh Siddha
Signed-off-by: H. Peter Anvin
17 Dec, 2008
2 commits
-
Impact: clarify documentation
Documentation/x86/boot.txt describes payload_offset as the offset
from the end of the real-mode code. In fact, it is more accurately
described as the offset from the beginning of the protected-mode
code, as (a) this is how it is actually calculated and (b) the padding
after the real-mode code is not included in the offset.Signed-off-by: Philipp Kohlbecher
Acked-by: Ian Campbell
Acked-by: H. Peter Anvin
Signed-off-by: Ingo Molnar
12 Nov, 2008
2 commits
-
Impact: documentation fix
I met okuji-san (GRUB maintainer) yesterday.
He said GRuB isn't correct spelled and he want to fix it.Signed-off-by: KOSAKI Motohiro
Signed-off-by: Ingo Molnar -
Impact: documentation update
Commit a6523748bddd38bcec11431f57502090b6014a96
(paravirt/x86, 64-bit: move __PAGE_OFFSET to leave a space for hypervisor)
changed address space without changing the documentation.Change it according to the code change -- direct mapping start:
ffff810000000000 => ffff880000000000 which gives 57 TiB, something
between 45 and 46 bits.Signed-off-by: Jiri Slaby
Signed-off-by: Ingo Molnar
03 Nov, 2008
1 commit
-
Impact: documentation update
1) nmi_watchdog boot parameter is common to 32/64 bit modes. So
move it from Documentation/x86/x86_64/boot-options.txt to
Documentation/kernel-parameters.txt and integrate with.2) Also fix [panic] keyword placement -- it ought to be at first
position otherwise it will not be recognized.3) Document lapic and ioapic keywords.
Signed-off-by: Cyrill Gorcunov
Signed-off-by: Ingo Molnar
28 Oct, 2008
1 commit
-
The Documentation/i386 and Documentation/x86_64 directories and their
contents have been moved into Documentation/x86. Fix references to
those files accordingly.Signed-off-by: Uwe Hermann
Signed-off-by: Randy Dunlap
Signed-off-by: Ingo Molnar
29 Aug, 2008
1 commit
-
Commit ecd29476ae0143b1c3641edfa76c0fc3e9ad3021 removed the
"disable_8254_timer" and "enable_8254_timer" kernel parameters from
the kernel but did not remove the references to them from two
files in the Documentation directory: kernel-parameters.txt and
x86/x86_64/boot-options.txt.This change completes the removal.
Signed-off-by: Luiz Fernando N. Capitulino
Acked-by: Maciej W. Rozycki
Signed-off-by: Ingo Molnar
21 Aug, 2008
1 commit
-
Documentation update for PAT. Reflect the latest API details.
Also, adds details about ways to get more info in order to debug PAT.Signed-off-by: Venkatesh Pallipadi
Signed-off-by: Ingo Molnar
28 Jul, 2008
1 commit
-
Move mtrr.txt to the Documentation/x86/ subdirectory.
Add 00-INDEX to the Documentation/x86/ subdirectory.Signed-off-by: Randy Dunlap
Cc: Adrian Bunk
Signed-off-by: Ingo Molnar
23 Jul, 2008
2 commits
-
The start_sys field is two bytes, not four.
Signed-off-by: H. Peter Anvin
-
The boot protocol, USB legacy support, and zero-page documentation is
common to the x86 platform, not i386-specific.Signed-off-by: H. Peter Anvin
08 Jul, 2008
1 commit
-
Applies on top of the previous patch:
x86 boot: add code to add BIOS provided EFI memory entries to kernelInstead of always adding EFI memory map entries (if present) to the
memory map after initially finding either E820 BIOS memory map entries
and/or kernel command line memmap entries, -instead- only add such
additional EFI memory map entries if the kernel boot option:add_efi_memmap
is specified.
Requiring this 'add_efi_memmap' option is backward compatible with
kernels that didn't load such additional EFI memory map entries in
the first place, and it doesn't override a configuration that tries
to replace all E820 or EFI BIOS memory map entries with ones given
entirely on the kernel command line.Signed-off-by: Paul Jackson
Cc: "Yinghai Lu"
Cc: "Jack Steiner"
Cc: "Mike Travis"
Cc: "Huang
Cc: Ying"
Cc: "Andi Kleen"
Cc: "Andrew Morton"
Cc: Paul Jackson
Signed-off-by: Ingo Molnar
