summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2011-01-13leds: leds-lp5523: modify the way of setting led device nameSamu Onkalo
Currently all leds channels begins with string lp5523. Patch adds a possibility to provide name via platform data. This makes it possible to have several chips without overlapping sysfs names. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Cc: Arun Murthy <arun.murthy@stericsson.com> Cc: Ilkka Koskinen <ilkka.koskinen@nokia.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13leds: leds-pca9532 cleanupsAxel Lin
- Remove unneeded input_free_device() after input_unregister_device(). - Add pca9532_destroy_devices() function for destroy devices. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13drivers/leds/leds-lp5521.c: fix potential buffer overflowVasiliy Kulikov
The code doesn't check first sscanf() return value. If first sscanf() failed then c contains some garbage. It might lead to reading uninitialised stack data in the second sscanf() call. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13fs/ext4/inode.c: use pr_warn_ratelimited()Andrew Morton
pr_warning_ratelimited() doesn't exist. Also include printk.h, which defines these things. Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-12Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (39 commits) i915/gtt: fix ordering causing DMAR errors on object teardown. i915/gtt: fix ordering issues with status setup and DMAR drm/i915/execbuffer: Reorder binding of objects to favour restrictions drm/i915: If we hit OOM when allocating GTT pages, clear the aperture drm/i915/evict: Ensure we completely cleanup on failure drm/i915/execbuffer: Correctly clear the current object list upon EFAULT drm/i915/debugfs: Show all objects in the gtt drm/i915: Record AGP memory type upon error drm/i915: Periodically flush the active lists and requests drm/i915/gtt: Unmap the PCI pages after unbinding them from the GTT drm/i915: Record the error batchbuffer on each ring drm/i915: Include TLB miss overhead for computing WM drm/i915: Propagate error from flushing the ring drm/i915: detect & report PCH display error interrupts drm/i915: cleanup rc6 code drm/i915: fix rc6 enabling around suspend/resume drm/i915: re-enable rc6 support for Ironlake+ drm/i915: Make the ring IMR handling private drm/i915/ringbuffer: Simplify the ring irq refcounting drm/i915/debugfs: Show the per-ring IMR ...
2011-01-12Merge branch 'tools' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 * 'tools' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6: tools: create power/x86/x86_energy_perf_policy tools: create power/x86/turbostat
2011-01-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktestLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest: (30 commits) ktest: Ask for the manditory config options instead of just failing ktest: Copy the last good and bad configs in config_bisect ktest: For grub reboot, use run_ssh instead of run_command ktest: Added force stop after success and failure ktest: Parse off the directory name in useconfig for failures ktest: Use different temp config name for minconfig ktest: Updated the sample.conf for the latest options ktest: Added compare script to test ktest.pl to sample.conf ktest: Added config_bisect test type ktest/cleanups: Added version 0.2, ssh as options ktest: Output something easy to parse for failure or success ktest: Allow a test case to undefine a default value ktest: Use $output_config instead of typing $outputdir/.config ktest: Write to stdout if no log file is given ktest: Use oldnoconfig instead of yes command ktest: Update the sample config file with more documentation ktest: New TEST_START instead of using [], and use real SHA1s ktest: Add poweroff after halt and powercycle after reboot ktest: Add POST_INSTALL to allow initrds to be created ktest: Added sample.conf, new %default option format ...
2011-01-12Merge branch 'stable/xenbus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/xenbus: making backend support modular is too complex xen/pci: Make xen-pcifront be dependent on XEN_XENBUS_FRONTEND xen/xenbus: fixup checkpatch issues in xenbus_probe* xen/netfront: select XEN_XENBUS_FRONTEND xen/xenbus: clean up noise in xenbus_probe_frontend.c xen/xenbus: clean up noise in xenbus_probe_backend.c xen/xenbus: clean up noise in xenbus_probe.c xen/xenbus: cleanup debug noise in xenbus_comms.c xen/xenbus: clean up error handling xen/xenbus: make frontend bus GPL xen/xenbus: make sure backend bus is registered earlier xenbus/frontend: register bus earlier xen: remove xen/evtchn.h xen: add backend driver support xen: separate out frontend xenbus
2011-01-12NTFS: writev() fix and maintenance/contact details updateAnton Altaparmakov
Fix writev() to not keep writing the first segment over and over again instead of moving onto subsequent segments and update the NTFS entry in MAINTAINERS to reflect that Tuxera Inc. now supports the NTFS driver. Signed-off-by: Anton Altaparmakov <anton@tuxera.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-12KVM: Initialize fpu state in preemptible contextAvi Kivity
init_fpu() (which is indirectly called by the fpu switching code) assumes it is in process context. Rather than makeing init_fpu() use an atomic allocation, which can cause a task to be killed, make sure the fpu is already initialized when we enter the run loop. KVM-Stable-Tag. Reported-and-tested-by: Kirill A. Shutemov <kas@openvz.org> Acked-by: Pekka Enberg <penberg@kernel.org> Reviewed-by: Christoph Lameter <cl@linux.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: VMX: when entering real mode align segment base to 16 bytesGleb Natapov
VMX checks that base is equal segment shifted 4 bits left. Otherwise guest entry fails. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: handle 'map_writable' in set_spte() functionXiao Guangrong
Move the operation of 'writable' to set_spte() to clean up code [avi: remove unneeded booleanification] Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: audit: allow audit more guests at the same timeXiao Guangrong
It only allows to audit one guest in the system since: - 'audit_point' is a glob variable - mmu_audit_disable() is called in kvm_mmu_destroy(), so audit is disabled after a guest exited this patch fix those issues then allow to audit more guests at the same time Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Fetch guest cr3 from hardware on demandAvi Kivity
Instead of syncing the guest cr3 every exit, which is expensince on vmx with ept enabled, sync it only on demand. [sheng: fix incorrect cr3 seen by Windows XP] Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Replace reads of vcpu->arch.cr3 by an accessorAvi Kivity
This allows us to keep cr3 in the VMCS, later on. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: only write protect mappings at pagetable levelMarcelo Tosatti
If a pagetable contains a writeable large spte, all of its sptes will be write protected, including non-leaf ones, leading to endless pagefaults. Do not write protect pages above PT_PAGE_TABLE_LEVEL, as the spte fault paths assume non-leaf sptes are writable. Tested-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: VMX: Correct asm constraint in vmcs_load()/vmcs_clear()Avi Kivity
'error' is byte sized, so use a byte register constraint. Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: MMU: Initialize base_role for tdp mmusAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: VMX: Optimize atomic EFER loadAvi Kivity
When NX is enabled on the host but not on the guest, we use the entry/exit msr load facility, which is slow. Optimize it to use entry/exit efer load, which is ~1200 cycles faster. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: VMX: Add definitions for more vm entry/exit control bitsAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: copy instruction bytes from VMCBAndre Przywara
In case of a nested page fault or an intercepted #PF newer SVM implementations provide a copy of the faulting instruction bytes in the VMCB. Use these bytes to feed the instruction emulator and avoid the costly guest instruction fetch in this case. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: implement enhanced INVLPG interceptAndre Przywara
When the DecodeAssist feature is available, the linear address is provided in the VMCB on INVLPG intercepts. Use it directly to avoid any decoding and emulation. This is only useful for shadow paging, though. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: enhance mov DR intercept handlerAndre Przywara
Newer SVM implementations provide the GPR number in the VMCB, so that the emulation path is no longer necesarry to handle debug register access intercepts. Implement the handling in svm.c and use it when the info is provided. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: enhance MOV CR intercept handlerAndre Przywara
Newer SVM implementations provide the GPR number in the VMCB, so that the emulation path is no longer necesarry to handle CR register access intercepts. Implement the handling in svm.c and use it when the info is provided. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: SVM: add new SVM feature bit namesAndre Przywara
the recent APM Vol.2 and the recent AMD CPUID specification describe new CPUID features bits for SVM. Name them here for later usage. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: cleanup emulate_instructionAndre Przywara
emulate_instruction had many callers, but only one used all parameters. One parameter was unused, another one is now hidden by a wrapper function (required for a future addition anyway), so most callers use now a shorter parameter list. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: move complete_insn_gp() into x86.cAndre Przywara
move the complete_insn_gp() helper function out of the VMX part into the generic x86 part to make it usable by SVM. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM: x86: fix CR8 handlingAndre Przywara
The handling of CR8 writes in KVM is currently somewhat cumbersome. This patch makes it look like the other CR register handlers and fixes a possible issue in VMX, where the RIP would be incremented despite an injected #GP. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-12KVM guest: Fix kvm clock initialization when it's configured outAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Take missing slots_lock for kvm_io_bus_unregister_dev()Takuya Yoshikawa
In KVM_CREATE_IRQCHIP, kvm_io_bus_unregister_dev() is called without taking slots_lock in the error handling path. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: return true when user space query KVM_CAP_USER_NMI extensionLai Jiangshan
userspace may check this extension in runtime. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Correct kvm_pio tracepoint count fieldAvi Kivity
Currently, we record '1' for count regardless of the real count. Fix. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: Fix incorrect direct page write protection due to ro host pageAvi Kivity
If KVM sees a read-only host page, it will map it as read-only to prevent breaking a COW. However, if the page was part of a large guest page, KVM incorrectly extends the write protection to the entire large page frame instead of limiting it to the normal host page. This results in the instantiation of a new shadow page with read-only access. If this happens for a MOVS instruction that moves memory between two normal pages, within a single large page frame, and mapped within the guest as a large page, and if, in addition, the source operand is not writeable in the host (perhaps due to KSM), then KVM will instantiate a read-only direct shadow page, instantiate an spte for the source operand, then instantiate a new read/write direct shadow page and instantiate an spte for the destination operand. Since these two sptes are in different shadow pages, MOVS will never see them at the same time and the guest will not make progress. Fix by mapping the direct shadow page read/write, and only marking the host page read-only. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: Fix build error on s390 due to missing tlbs_dirtyAvi Kivity
Make it available for all archs. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add xsetbv interceptJoerg Roedel
This patch implements the xsetbv intercept to the AMD part of KVM. This makes AVX usable in a save way for the guest on AVX capable AMD hardware. The patch is tested by using AVX in the guest and host in parallel and checking for data corruption. I also used the KVM xsave unit-tests and they all pass. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: Make the way of accessing lpage_info more genericTakuya Yoshikawa
Large page information has two elements but one of them, write_count, alone is accessed by a helper function. This patch replaces this helper function with more generic one which returns newly named kvm_lpage_info structure and use it to access the other element rmap_pde. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: VMX: add module parameter to avoid trapping HLT instructions (v5)Anthony Liguori
In certain use-cases, we want to allocate guests fixed time slices where idle guest cycles leave the machine idling. There are many approaches to achieve this but the most direct is to simply avoid trapping the HLT instruction which lets the guest directly execute the instruction putting the processor to sleep. Introduce this as a module-level option for kvm-vmx.ko since if you do this for one guest, you probably want to do it for all. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Implement Flush-By-Asid featureJoerg Roedel
This patch adds the new flush-by-asid of upcoming AMD processors to the KVM-AMD module. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Use svm_flush_tlb instead of force_new_asidJoerg Roedel
This patch replaces all calls to force_new_asid which are intended to flush the guest-tlb by the more appropriate function svm_flush_tlb. As a side-effect the force_new_asid function is removed. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Remove flush_guest_tlb functionJoerg Roedel
This function is unused and there is svm_flush_tlb which does the same. So this function can be removed. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: retry #PF for softmmuXiao Guangrong
Retry #PF for softmmu only when the current vcpu has the same cr3 as the time when #PF occurs Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: fix accessed bit set on prefault pathXiao Guangrong
Retry #PF is the speculative path, so don't set the accessed bit Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: MMU: rename 'no_apf' to 'prefault'Xiao Guangrong
It's the speculative path if 'no_apf = 1' and we will specially handle this speculative path in the later patch, so 'prefault' is better to fit the sense. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for LBR stateJoerg Roedel
This patch implements the clean-bit for all LBR related state. This includes the debugctl, br_from, br_to, last_excp_from, and last_excp_to msrs. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for CR2 registerJoerg Roedel
This patch implements the clean-bit for the cr2 register in the vmcb. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for Segements and CPLJoerg Roedel
This patch implements the clean-bit defined for the cs, ds, ss, an es segemnts and the current cpl saved in the vmcb. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for GDT and IDTJoerg Roedel
This patch implements the clean-bit for the base and limit of the gdt and idt in the vmcb. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for DR6 and DR7Joerg Roedel
This patch implements the clean-bit for the dr6 and dr7 debug registers in the vmcb. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for control registersJoerg Roedel
This patch implements the CRx clean-bit for the vmcb. This bit covers cr0, cr3, cr4, and efer. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-01-12KVM: SVM: Add clean-bit for NPT stateJoerg Roedel
This patch implements the clean-bit for all nested paging related state in the vmcb. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
generated by cgit (git 2.34.1) at 2025-09-12 09:46:56 +0000