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* x86, amd: Restrict usage of c1e_idle()Andreas Herrmann2010-03-19
| | | | | | | | | | | | | | | | | Currently c1e_idle returns true for all CPUs greater than or equal to family 0xf model 0x40. This covers too many CPUs. Meanwhile a respective erratum for the underlying problem was filed (#400). This patch adds the logic to check whether erratum #400 applies to a given CPU. Especially for CPUs where SMI/HW triggered C1e is not supported, c1e_idle() doesn't need to be used. We can check this by looking at the respective OSVW bit for erratum #400. Cc: <stable@kernel.org> # .32.x .33.x Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100319110922.GA19614@alberich.amd.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config spaceAndreas Herrmann2009-12-16
| | | | | | | | Use NodeId MSR to get NodeId and number of nodes per processor. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20091216144355.GB28798@alberich.amd.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86: Add IA32_TSC_AUX MSR and use itSheng Yang2009-12-16
| | | | | | | | | | | | | Clean up write_tsc() and write_tscp_aux() by replacing hardcoded values. No change in functionality. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Cc: Avi Kivity <avi@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> LKML-Reference: <1260942485-19156-4-git-send-email-sheng@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'x86-mce-for-linus' of ↵Linus Torvalds2009-09-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (21 commits) x86, mce: Fix compilation with !CONFIG_DEBUG_FS in mce-severity.c x86, mce: CE in last bank prevents panic by unknown MCE x86, mce: Fake panic support for MCE testing x86, mce: Move debugfs mce dir creating to mce.c x86, mce: Support specifying raise mode for software MCE injection x86, mce: Support specifying context for software mce injection x86, mce: fix reporting of Thermal Monitoring mechanism enabled x86, mce: remove never executed code x86, mce: add missing __cpuinit tags x86, mce: fix "mce" boot option handling for CONFIG_X86_NEW_MCE x86, mce: don't log boot MCEs on Pentium M (model == 13) CPUs x86: mce: Lower maximum number of banks to architecture limit x86: mce: macros to compute banks MSRs x86: mce: Move per bank data in a single datastructure x86: mce: Move code in mce.c x86: mce: Rename CONFIG_X86_NEW_MCE to CONFIG_X86_MCE x86: mce: Remove old i386 machine check code x86: mce: Update X86_MCE description in x86/Kconfig x86: mce: Make CONFIG_X86_ANCIENT_MCE dependent on CONFIG_X86_MCE x86, mce: use atomic_inc_return() instead of add by 1 ... Manually fixed up trivial conflicts: Documentation/feature-removal-schedule.txt arch/x86/kernel/cpu/mcheck/mce.c
| * x86, mce: fix reporting of Thermal Monitoring mechanism enabledBartlomiej Zolnierkiewicz2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | Early Pentium M models use different method for enabling TM2 (per paragraph 13.5.2.3 of the "Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3A: System Programming Guide, Part 1"). Tested on the affected Pentium M variant (model == 13). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * x86: mce: macros to compute banks MSRsAndi Kleen2009-07-09
| | | | | | | | | | | | | | | | | | | | Instead of open coded calculations for bank MSRs hide the indexing of higher banks MCE register MSRs in new macros. No semantic changes. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | x86: Add definition for IGNNE MSRAlexander Graf2009-09-10
| | | | | | | | | | | | | | Hyper-V accesses MSR_IGNNE while running under KVM. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
* | x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1Jaswinder Singh Rajput2009-07-01
|/ | | | | | | | MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 is already declared in msr-index.h. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> LKML-Reference: <1246450778.6940.8.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'linus' into x86/mce3Ingo Molnar2009-06-11
|\ | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/kernel/cpu/mcheck/mce_64.c arch/x86/kernel/irq.c Merge reason: Resolve the conflicts above. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: msr-index.h remove duplicate MSR C001_0015 declarationJaswinder Singh Rajput2009-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | MSRC001_0015 Hardware Configuration Register (HWCR) is already defined as MSR_K7_HWCR. And HWCR is available for >= K7. So MSR_K8_HWCR is not required and no-one is using it. [ Impact: cleanup, no object code change ] Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
* | x86, mce: Cleanup symbols in intel thermal codesThomas Gleixner2009-05-28
|/ | | | | | | | | | | | | Decode magic constants and turn them into symbols. [ Cleanup to use symbols already exists - HS ] [ Impact: cleanup ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* Merge branch 'linus' into x86/coreIngo Molnar2009-03-28
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| * x86: Add EFER descriptions for FFXSRAlexander Graf2009-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | | AMD k10 includes support for the FFXSR feature, which leaves out XMM registers on FXSAVE/FXSAVE when the EFER_FFXSR bit is set in EFER. The CPUID feature bit exists already, but the EFER bit is missing currently, so this patch adds it to the list of known EFER bits. Signed-off-by: Alexander Graf <agraf@suse.de> CC: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * KVM: SVM: Move EFER and MSR constants to generic x86 codeAlexander Graf2009-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MSR_EFER_SVME_MASK, MSR_VM_CR and MSR_VM_HSAVE_PA are set in KVM specific headers. Linux does have nice header files to collect EFER bits and MSR IDs, so IMHO we should put them there. While at it, I also changed the naming scheme to match that of the other defines. (introduced in v6) Acked-by: Joerg Roedel <joro@8bytes.org> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
* | x86, mce, cmci: define MSR names and fields for new CMCI registersAndi Kleen2009-02-24
|/ | | | | | | | | | | | | | | Impact: New register definitions only CMCI means support for raising an interrupt on a corrected machine check event instead of having to poll for it. It's a new feature in Intel Nehalem CPUs available on some machine check banks. For details see the IA32 SDM Vol3a 14.5 Define the registers for it as a preparation for further patches. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86: add MSR_IA32_MISC_ENABLE bits to <asm/msr-index.h>H. Peter Anvin2009-01-21
| | | | | | | | | Impact: None (new bit definitions currently unused) Add bit definitions for the MSR_IA32_MISC_ENABLE MSRs to <asm/msr-index.h>. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* x86: microcode_amd: replace inline asm by common rdmsr/wrmsr functionsAndreas Herrmann2008-12-16
| | | | | | | Impact: cleanup Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: Fix ASM_X86__ header guardsH. Peter Anvin2008-10-23
| | | | | | | | | Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86, um: ... and asm-x86 moveAl Viro2008-10-23
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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