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| | | | | | * | | | | | | | | | | | | | | x86: init annotations in early_printk() setupJan Beulich2008-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | | * | | | | | | | | | | | | | | x86: early_printk.c trivial sparse fixesHarvey Harrison2008-08-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/x86/kernel/early_printk.c:404:13: warning: incorrect type in assignment (different base types) arch/x86/kernel/early_printk.c:404:13: expected restricted __le16 [assigned] [usertype] wValue arch/x86/kernel/early_printk.c:404:13: got int [signed] value arch/x86/kernel/early_printk.c:405:13: warning: incorrect type in assignment (different base types) arch/x86/kernel/early_printk.c:405:13: expected restricted __le16 [assigned] [usertype] wIndex arch/x86/kernel/early_printk.c:405:13: got int [signed] index arch/x86/kernel/early_printk.c:406:14: warning: incorrect type in assignment (different base types) arch/x86/kernel/early_printk.c:406:14: expected restricted __le16 [assigned] [usertype] wLength arch/x86/kernel/early_printk.c:406:14: got int [signed] size arch/x86/kernel/early_printk.c:845:16: warning: Using plain integer as NULL pointer arch/x86/kernel/early_printk.c:992:13: warning: symbol 'enable_debug_console' was not declared. Should it be static? Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | | * | | | | | | | | | | | | | | x86: usb debug port early console, v4Yinghai Lu2008-07-26
| | | | | | | |_|_|_|/ / / / / / / / / / | | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | based on work from Eric, and add some timeout so don't dead loop when debug device is not installed v2: fix checkpatch warning v3: move ehci struct def to linux/usrb/ehci_def.h from host/ehci.h also add CONFIG_EARLY_PRINTK_DBGP to disable it by default v4: address comments from Ingo, seperate ehci reg def moving to another patch also add auto detect port that connect to debug device for Nvidia southbridge Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: "Arjan van de Ven" <arjan@infradead.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: "Greg KH" <greg@kroah.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | Merge branch 'linus' into x86/memory-corruption-checkIngo Molnar2008-10-12
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| | | | | * | | | | | | | | | | | | | | x86: fix macro with bad_bios_dmi_tableYinghai Lu2008-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DMI tables need a blank NULL tail. fixes the crash on Ingo's test box. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: fix CONFIG_X86_RESERVE_LOW_64K=yYinghai Lu2008-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bad_bios_dmi_table() quirk never triggered because we do DMI setup too late. Move it a bit earlier. Also change the CONFIG_X86_RESERVE_LOW_64K quirk to operate on the e820 table directly instead of messing with early reservations - this handles overlaps (which do occur in this low range of RAM) more gracefully. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: use round_jiffies() for the corruption check timerArjan van de Ven2008-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the exact timing of the corruption check isn't too important (it's once a minute timer), use round_jiffies() to align it and avoid extra wakeups. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: add X86_RESERVE_LOW_64KIngo Molnar2008-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bugzilla: http://bugzilla.kernel.org/show_bug.cgi?id=11237 Documents a wide range of systems where the BIOS utilizes the first 64K of physical memory during suspend/resume and other hardware events. Currently we reserve this memory on all AMI and Phoenix BIOS systems. Life is too short to hunt subtle memory corruption problems like this, so we try to be robust by default. Still, allow this to be overriden: allow users who want that first 64K of memory to be available to the kernel disable the quirk, via CONFIG_X86_RESERVE_LOW_64K=n. Also, allow the early reservation to overlap with other early reservations. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: reserve low 64K on AMI and Phoenix BIOS boxenIngo Molnar2008-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | there's multiple reports about suspend/resume related low memory corruption in this bugzilla: http://bugzilla.kernel.org/show_bug.cgi?id=11237 the common pattern is that the corruption is caused by the BIOS, and that it affects some portion of the first 64K of physical RAM. So add a DMI quirk This will waste 64K RAM on 'good' systems too, but without knowing the exact nature of this BIOS memory corruption this is the safest approach. This might as well solve a wide range of suspend/resume breakages under Linux. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: add DMI quirk for AMI BIOS which corrupts address 0xc000 during resumeIngo Molnar2008-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Alan Jenkins and Andy Wettstein reported a suspend/resume memory corruption bug and extensively documented it here: http://bugzilla.kernel.org/show_bug.cgi?id=11237 The bug is that the BIOS overwrites 1K of memory at 0xc000 physical, without registering it in e820 as reserved or giving the kernel any idea about this. Detect AMI BIOSen and reserve that 1K. We paint this bug around with a very broad brush (reserving that 1K on all AMI BIOS systems), as the bug was extremely hard to find and needed several weeks and lots of debugging and patching. The bug was found via the CONFIG_X86_CHECK_BIOS_CORRUPTION=y debug feature, if similar bugs are suspected then this feature can be enabled on other systems as well to scan low memory for corrupted memory. Reported-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Reported-by: Andy Wettstein <ajw1980@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | Merge commit 'v2.6.27-rc6' into x86/memory-corruption-checkIngo Molnar2008-09-16
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| | | | | * | | | | | | | | | | | | | | x86: default corruption check to off, but put parameter default in KconfigJeremy Fitzhardinge2008-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Default the low memory corruption check to off, but make the default setting of the memory_corruption_check kernel parameter a config parameter. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: clean up memory corruption check and add more kernel parametersJeremy Fitzhardinge2008-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The corruption check is enabled in Kconfig by default, but disabled at runtime. This patch adds several kernel parameters to control the corruption check's behaviour; these are documented in kernel-parameters.txt. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: add periodic corruption checkHugh Dickins2008-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Perodically check for corruption in low phusical memory. Don't bother checking at fault time, since it won't show anything useful. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | | | | | | | | | | x86: check for and defend against BIOS memory corruptionJeremy Fitzhardinge2008-09-07
| | | |_|/ / / / / / / / / / / / / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some BIOSes have been observed to corrupt memory in the low 64k. This change: - Reserves all memory which does not have to be in that area, to prevent it from being used as general memory by the kernel. Things like the SMP trampoline are still in the memory, however. - Clears the reserved memory so we can observe changes to it. - Adds a function check_for_bios_corruption() which checks and reports on memory becoming unexpectedly non-zero. Currently it's called in the x86 fault handler, and the powermanagement debug output. Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | * | | | | | | | | | | | | | | MM: virtual address debugJiri Slaby2008-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add some (configurable) expensive sanity checking to catch wrong address translations on x86. - create linux/mmdebug.h file to be able include this file in asm headers to not get unsolvable loops in header files - __phys_addr on x86_32 became a function in ioremap.c since PAGE_OFFSET, is_vmalloc_addr and VMALLOC_* non-constasts are undefined if declared in page_32.h - add __phys_addr_const for initializing doublefault_tss.__cr3 Tested on 386, 386pae, x86_64 and x86_64 numa=fake=2. Contains Andi's enable numa virtual address debug patch. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86/microcode: fix sleeping function called from invalid context at ↵Dmitry Adamushko2008-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kernel/mutex.c Fix the following "sleeping function called from invalid context" bug: ... __might_sleep mutex_lock_nested microcode_update_cpu mc_sysdev_resume __sysdev_resume sysdev_resume device_power_up ... Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: microcode patch loader bugfixPeter Oruba2008-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Corrected CPU vendor check condition for AMD microcode patch loader initialization. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode_amd: cleanup, mark request_microcode_user() as unsupportedDmitry Adamushko2008-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (1) mark mc_size in generic_load_microcode() as unitialized_var to avoid gcc's (false) warning; (2) mark request_microcode_user() as unsupported. The required changes can be added later. Note, we don't break any user-space interfaces here, as there were no kernels with support for AMD-specific ucode update yet. The ucode has to be updated via 'firmware'. Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | Merge commit 'v2.6.27-rc7' into x86/microcodeIngo Molnar2008-09-24
| | | |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | |_|_|_|_|_|_|_|_|_|_|/ / / / | | | | |/| | | | | | | | | | | | | |
| | | * | | | | | | | | | | | | | | | x86, microcode rework, v2, renaming cont.Peter Oruba2008-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Renaming based on patch from Dmitry Adamushko. Further clarification by renaming define and variable related to microcode container file. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode rework, v2, renamingPeter Oruba2008-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Renaming based on patch from Dmitry Adamushko. Made code more readable by renaming define and variables related to microcode _container_file_ header to make it distinguishable from microcode _patch_ header. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: moved microcode.c to microcode_intel.cDmitry Adamushko2008-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Combine both generic and arch-specific parts of microcode into a single module (arch-specific parts are config-dependent). Also while we are at it, move arch-specific parts from microcode.h into their respective arch-specific .c files. Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Cc: "Peter Oruba" <peter.oruba@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode rework, v2, fixIngo Molnar2008-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | based on patch from Dmitry Adamushko. - add missing vfree() - update debug printks Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode rework, v2Dmitry Adamushko2008-09-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this is a rework of the microcode splitup in tip/x86/microcode (1) I think this new interface is cleaner (look at the changes in 'struct microcode_ops' in microcode.h); (2) it's -64 lines of code; Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode_amd: fix shift warningRandy Dunlap2008-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | microcode_amd.c uses ">> 32" on a 32-bit value, so gcc warns about that. The code could use something like this *untested* patch. linux-next-20080821/arch/x86/kernel/microcode_amd.c:229: warning: right shift count >= width of type Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86-microcode: generic interface refactoringDmitry Adamushko2008-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the 1st patch in the series. Here the aim was to avoid any significant changes, logically-wise. So it's mainly about generic interface refactoring: e.g. make microcode_{intel,amd}.c more about arch-specific details and less about policies like make-sure-we-run-on-a-target-cpu (no more set_cpus_allowed_ptr() here) and generic synchronization (no more microcode_mutex here). All in all, more line have been deleted than added. 4 files changed, 145 insertions(+), 198 deletions(-) Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86-microcode: fix unbalanced use of get_cpu()Dmitry Adamushko2008-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't use get_cpu() at all. Resort to checking a boot-up CPU (#0) in microcode_{intel,amd}_module_init(). Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: Fixed NULL function pointer dereference in AMD microcode patch loader.Peter Oruba2008-08-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dereference took place in code part responsible for manual installation of microcode patches through /dev/cpu/microcode. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: Microcode patch loader style correctionsPeter Oruba2008-08-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Style corrections to main microcode module. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | Fix date output in x86 microcode driver.David Woodhouse2008-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The microcode stores its date in a uint32_t in some weird order approximating pdp-endian. Rather than printing it like that, print it properly in ISO standard form. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Cc: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: minor pointer type cast in AMD microcode patch loaderPeter Oruba2008-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: moved function declarations out from AMD microcode patch loader to ↵Peter Oruba2008-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | heade file Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: Intel microcode patch loader style correctionsPeter Oruba2008-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: AMD microcode patch loader style correctionsPeter Oruba2008-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | Merge commit 'v2.6.27-rc1' into x86/microcodeIngo Molnar2008-07-29
| | | |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | |_|_|_|_|_|_|_|/ / / / / / / | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/kernel/microcode.c Manual resolutions: arch/x86/kernel/microcode_amd.c arch/x86/kernel/microcode_intel.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode: fix module license stringIngo Molnar2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix: FATAL: modpost: GPL-incompatible module microcode_amd.ko uses GPL-only symbol 'set_cpus_allowed_ptr' Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode: fix symbol exportsIngo Molnar2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix tons of build errors: arch/x86/kernel/built-in.o: In function `microcode_fini_cpu': microcode_intel.c:(.text+0x11598): undefined reference to `microcode_mutex' microcode_intel.c:(.text+0x115a4): undefined reference to `ucode_cpu_info' microcode_intel.c:(.text+0x115ae): undefined reference to `ucode_cpu_info' microcode_intel.c:(.text+0x115bc): undefined reference to `microcode_mutex' [...] Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86, microcode support: fix build errorIngo Molnar2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix: arch/x86/kernel/microcode.c:412: error: static declaration of ‘microcode_init’ follows non-static declaration include/asm/microcode.h:1: error: previous declaration of ‘microcode_init’ was here arch/x86/kernel/microcode.c:454: error: static declaration of ‘microcode_exit’ follows non-static declaration include/asm/microcode.h:2: error: previous declaration of ‘microcode_exit’ was here Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: AMD microcode patch loading supportPeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces microcode patch loading for AMD processors. It is based on previous corresponding work for Intel processors. It hooks into the general patch loading module. Main difference is that a container file format is used to hold all patch data for multiple processors as well as an equivalent CPU table, which comes seperately, as opposed to Intel's microcode patching solution. Kconfig and Makefile have been changed provice config and build option for new source file. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: major refactoringPeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactored code by introducing a two-module solution. There is one general module in which vendor specific modules can hook into. However, that is exclusive, there is only one vendor specific module allowed at a time. A CPU vendor check makes sure only the correct module for the underlying system gets called. Functinally in terms of patch loading itself there are no changes. This refactoring provides a basis for future implementations of other vendors' patch loaders. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: structure declaration renamingPeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Renamed common structures to vendor specific naming scheme so other vendors will be able to use the same naming convention. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: code split to two partsPeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Split off existing code into two seperate files. One file holds general code, the other file vendor specific parts. No functional changes, only refactoring. Temporarily Introduced a new module name 'ucode' for result, due to already taken name 'microcode'. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: move microcode.c to microcode_intel.cPeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: move per CPU microcode structure declaration to header filePeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This structure will be later used by other modules as well and needs therfore to be moved out to a header file. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: typedef removalPeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed typedefs. No functional changes to the code. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | | | | | | | | | | | | | | | x86: moved Intel microcode patch loader declarations to seperate header filePeter Oruba2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel specific microcode declarations have been moved to a seperate header file. There are no code changes to the code itself and no side effects to other parts. Signed-off-by: Peter Oruba <peter.oruba@amd.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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| *-. \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Merge branches 'core/signal' and 'x86/spinlocks' into x86/xenIngo Molnar2008-10-12
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | |_|_|_|_|_|/ / / / / / / / / / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: include/asm-x86/spinlock.h
| | * | | | | | | | | | | | | | | | | | Merge branch 'x86/signal' into core/signalIngo Molnar2008-10-12
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| | | * | | | | | | | | | | | | | | | | | Merge branch 'linus' into x86/signalIngo Molnar2008-10-12
| | | |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/kernel/signal_64.c
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-05 06:22:31 +0000