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2016-09-08Merge tag 'kvm-s390-next-4.9-1' of ↵Paolo Bonzini138-663/+2472
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: features and fixes for 4.9 - lazy enablement of runtime instrumentation - up to 255 CPUs for nested guests - rework of machine check deliver - cleanups/fixes
2016-09-08Merge remote-tracking branch 'kvms390/s390forkvm' into kvms390nextChristian Borntraeger2-4/+25
2016-09-08KVM: s390: Use memdup_user() rather than duplicating codeMarkus Elfring1-14/+4
* Reuse existing functionality from memdup_user() instead of keeping duplicate source code. This issue was detected by using the Coccinelle software. * Return directly if this copy operation failed. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Message-Id: <c86f7520-885e-2829-ae9c-b81caa898e84@users.sourceforge.net> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: Improve determination of sizes in kvm_s390_import_bp_data()Markus Elfring1-10/+15
* A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus reuse the corresponding function "kmalloc_array". Suggested-by: Paolo Bonzini <pbonzini@redhat.com> This issue was detected also by using the Coccinelle software. * Replace the specification of data structures by pointer dereferences to make the corresponding size determination a bit safer according to the Linux coding style convention. * Delete the local variable "size" which became unnecessary with this refactoring. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-Id: <c3323f6b-4af2-0bfb-9399-e529952e378e@users.sourceforge.net> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: allow 255 VCPUs when sca entries aren't usedDavid Hildenbrand4-2/+32
If the SCA entries aren't used by the hardware (no SIGPIF), we can simply not set the entries, stick to the basic sca and allow more than 64 VCPUs. To hinder any other facility from using these entries, let's properly provoke intercepts by not setting the MCN and keeping the entries unset. This effectively allows when running KVM under KVM (vSIE) or under z/VM to provide more than 64 VCPUs to a guest. Let's limit it to 255 for now, to not run into problems if the CPU numbers are limited somewhere else. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: lazy enable RIFan Zhang4-2/+36
Only enable runtime instrumentation if the guest issues an RI related instruction or if userspace changes the riccb to a valid state. This makes entry/exit a tiny bit faster. Initial patch by Christian Borntraeger Signed-off-by: Fan Zhang <zhangfan@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08svm: Implements update_pi_irte hook to setup posted interruptSuravee Suthikulpanit1-19/+266
This patch implements update_pi_irte function hook to allow SVM communicate to IOMMU driver regarding how to set up IRTE for handling posted interrupt. In case AVIC is enabled, during vcpu_load/unload, SVM needs to update IOMMU IRTE with appropriate host physical APIC ID. Also, when vcpu_blocking/unblocking, SVM needs to update the is-running bit in the IOMMU IRTE. Both are achieved via calling amd_iommu_update_ga(). However, if GA mode is not enabled for the pass-through device, IOMMU driver will simply just return when calling amd_iommu_update_ga. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-08svm: Introduce AMD IOMMU avic_ga_log_notifierSuravee Suthikulpanit2-2/+69
This patch introduces avic_ga_log_notifier, which will be called by IOMMU driver whenever it handles the Guest vAPIC (GA) log entry. Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-08svm: Introduces AVIC per-VM IDSuravee Suthikulpanit2-0/+52
Introduces per-VM AVIC ID and helper functions to manage the IDs. Currently, the ID will be used to implement 32-bit AVIC IOMMU GA tag. The ID is 24-bit one-based indexing value, and is managed via helper functions to get the next ID, or to free an ID once a VM is destroyed. There should be no ID conflict for any active VMs. Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-08KVM: s390: gaccess: simplify translation exception handlingJanosch Frank1-19/+18
The payload data for protection exceptions is a superset of the payload of other translation exceptions. Let's set the additional flags and use a fall through to minimize code duplication. Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: guestdbg: separate defines for per codeDavid Hildenbrand1-11/+17
Let's avoid working with the PER_EVENT* defines, used for control register manipulation, when checking the u8 PER code. Introduce separate defines based on the existing defines. Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: write external damage code on machine checksDavid Hildenbrand2-0/+3
Let's also write the external damage code already provided by struct kvm_s390_mchk_info. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: fix delivery of vector regs during machine checksDavid Hildenbrand3-37/+13
Vector registers are only to be stored if the facility is available and if the guest has set up the machine check extended save area. If anything goes wrong while writing the vector registers, the vector registers are to be marked as invalid. Please note that we are allowed to write the registers although they are marked as invalid. Machine checks and "store status" SIGP orders are two different concepts, let's correctly separate these. As the SIGP part is completely handled in user space, we can drop it. This patch is based on a patch from Cornelia Huck. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: split store status and machine check handlingDavid Hildenbrand1-1/+28
Store status writes the prefix which is not to be done by a machine check. Also, the psw is stored and later on overwritten by the failing-storage address, which looks strange at first sight. Store status and machine check handling look similar, but they are actually two different things. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-08KVM: s390: factor out actual delivery of machine checksDavid Hildenbrand1-23/+31
Let's factor this out to prepare for bigger changes. Reorder to calls to match the logical order given in the PoP. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-09-07KVM: nVMX: expose INS/OUTS information supportJan Dakinevich1-0/+9
Expose the feature to L1 hypervisor if host CPU supports it, since certain hypervisors requires it for own purposes. According to Intel SDM A.1, if CPU supports the feature, VMX_INSTRUCTION_INFO field of VMCS will contain detailed information about INS/OUTS instructions handling. This field is already copied to VMCS12 for L1 hypervisor (see prepare_vmcs12 routine) independently feature presence. Signed-off-by: Jan Dakinevich <jan.dakinevich@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07KVM: VMX: not use vmcs_config in setup_vmcs_configPaolo Bonzini1-1/+1
setup_vmcs_config takes a pointer to the vmcs_config global. The indirection is somewhat pointless, but just keep things consistent for now. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07KVM: x86: remove stale commentsPaolo Bonzini1-1/+0
handle_external_intr does not enable interrupts anymore, vcpu_enter_guest does it after calling guest_exit_irqoff. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07KVM: x86: ratelimit and decrease severity for guest-triggered printkPaolo Bonzini1-9/+9
These are mostly related to nested VMX. They needn't have a loglevel as high as KERN_WARN, and mustn't be allowed to pollute the host logs. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07KVM: nVMX: pass valid guest linear-address to the L1Jan Dakinevich1-0/+3
If EPT support is exposed to L1 hypervisor, guest linear-address field of VMCS should contain GVA of L2, the access to which caused EPT violation. Signed-off-by: Jan Dakinevich <jan.dakinevich@gmail.com> Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07KVM: Remove deprecated create_singlethread_workqueueBhaktipriya Shridhar3-34/+5
The workqueue "irqfd_cleanup_wq" queues a single work item &irqfd->shutdown and hence doesn't require ordering. It is a host-wide workqueue for issuing deferred shutdown requests aggregated from all vm* instances. It is not being used on a memory reclaim path. Hence, it has been converted to use system_wq. The work item has been flushed in kvm_irqfd_release(). The workqueue "wqueue" queues a single work item &timer->expired and hence doesn't require ordering. Also, it is not being used on a memory reclaim path. Hence, it has been converted to use system_wq. System workqueues have been able to handle high level of concurrency for a long time now and hence it's not required to have a singlethreaded workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue created with create_singlethread_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantee unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07KVM: nVMX: make emulated nested preemption timer pinnedWanpeng Li1-1/+1
Commit 61abdbe0bc ("kvm: x86: make lapic hrtimer pinned") pins the emulated lapic timer. This patch does the same for the emulated nested preemption timer to avoid vmexit an unrelated vCPU and the latency of kicking IPI to another vCPU. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-07vmx: refine validity check for guest linear addressLiang Li1-1/+1
The validity check for the guest line address is inefficient, check the invalid value instead of enumerating the valid ones. Signed-off-by: Liang Li <liang.z.li@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-05Merge branch 'x86/amd-avic' of ↵Paolo Bonzini6-66/+801
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu into HEAD Merge IOMMU bits for virtualization of interrupt injection into virtual machines.
2016-09-05iommu/amd: Enable vAPIC interrupt remapping mode by defaultSuravee Suthikulpanit3-10/+48
Introduce struct iommu_dev_data.use_vapic flag, which IOMMU driver uses to determine if it should enable vAPIC support, by setting the ga_mode bit in the device's interrupt remapping table entry. Currently, it is enabled for all pass-through device if vAPIC mode is enabled. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Implements irq_set_vcpu_affinity() hook to setup vapic mode for ↵Suravee Suthikulpanit3-4/+79
pass-through devices This patch implements irq_set_vcpu_affinity() function to set up interrupt remapping table entry with vapic mode for pass-through devices. In case requirements for vapic mode are not met, it falls back to set up the IRTE in legacy mode. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Introduce amd_iommu_update_ga()Suravee Suthikulpanit3-0/+49
Introduces a new IOMMU API, amd_iommu_update_ga(), which allows KVM (SVM) to update existing posted interrupt IOMMU IRTE when load/unload vcpu. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Adding GALOG interrupt handlerSuravee Suthikulpanit2-6/+87
This patch adds AMD IOMMU guest virtual APIC log (GALOG) handler. When IOMMU hardware receives an interrupt targeting a blocking vcpu, it creates an entry in the GALOG, and generates an interrupt to notify the AMD IOMMU driver. At this point, the driver processes the log entry, and notify the SVM driver via the registered iommu_ga_log_notifier function. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Detect and initialize guest vAPIC logSuravee Suthikulpanit2-7/+133
This patch adds support to detect and initialize IOMMU Guest vAPIC log (GALOG). By default, it also enable GALog interrupt to notify IOMMU driver when GA Log entry is created. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Add support for multiple IRTE formatsSuravee Suthikulpanit3-25/+50
This patch enables support for the new 128-bit IOMMU IRTE format, which can be used for both legacy and vapic interrupt remapping modes. It replaces the existing operations on IRTE, which can only support the older 32-bit IRTE format, with calls to the new struct amd_irt_ops. It also provides helper functions for setting up, accessing, and updating interrupt remapping table entries in different mode. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Introduce interrupt remapping ops structureSuravee Suthikulpanit2-5/+205
Currently, IOMMU support two interrupt remapping table entry formats, 32-bit (legacy) and 128-bit (GA). The spec also implies that it might support additional modes/formats in the future. So, this patch introduces the new struct amd_irte_ops, which allows the same code to work with different irte formats by providing hooks for various operations on an interrupt remapping table entry. Suggested-by: Joerg Roedel <joro@8bytes.org> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Move and introduce new IRTE-related unions and structuresSuravee Suthikulpanit2-28/+76
Move existing unions and structs for accessing/managing IRTE to a proper header file. This is mainly to simplify variable declarations in subsequent patches. Besides, this patch also introduces new struct irte_ga for the new 128-bit IRTE format. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-05iommu/amd: Detect and enable guest vAPIC supportSuravee Suthikulpanit4-6/+99
This patch introduces a new IOMMU driver parameter, amd_iommu_guest_ir, which can be used to specify different interrupt remapping mode for passthrough devices to VM guest: * legacy: Legacy interrupt remapping (w/ 32-bit IRTE) * vapic : Guest vAPIC interrupt remapping (w/ GA mode 128-bit IRTE) Note that in vapic mode, it can also supports legacy interrupt remapping for non-passthrough devices with the 128-bit IRTE. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-08-25KVM: s390: generate facility mask from readable listHeiko Carstens2-4/+25
Automatically generate the KVM facility mask out of a readable list. Manually changing the masks is very error prone, especially if the special IBM bit numbering has to be considered. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-08-22Linux 4.8-rc3v4.8-rc3Linus Torvalds1-1/+1
2016-08-22Merge branch 'parisc-4.8-2' of ↵Linus Torvalds3-22/+2
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull two parisc fixes from Helge Deller: "The first patch ensures that the high-res cr16 clocksource (which was added in kernel 4.7) gets choosen as default clocksource for parisc. The second patch moves the #define of EREFUSED down inside errno.h and thus unbreaks building the gccgo compiler" * 'parisc-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix order of EREFUSED define in errno.h parisc: Fix automatic selection of cr16 clocksource
2016-08-21EDAC, skx_edac: Add EDAC driver for SkylakeTony Luck4-0/+1136
This is an entirely new driver instead of yet another set of patches to sb_edac.c because: 1) Mapping from PCI devices to socket/memory controller is significantly different. Skylake scatters devices on a socket across a number of PCI buses. 2) There is an extra level of interleaving via the "mcroute" register that would be a little messy to squeeze into the old driver. 3) Validation is getting too expensive. Changes to sb_edac need to be checked against Sandy Bridge, Ivy Bridge, Haswell, Broadwell and Knights Landing. Acked-by: Aristeu Rozanski <aris@redhat.com> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-20parisc: Fix order of EREFUSED define in errno.hHelge Deller1-2/+2
When building gccgo in userspace, errno.h gets parsed and the go include file sysinfo.go is generated. Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED is defined later on in errno.h, this leads to go complaining that EREFUSED isn't defined yet. Fix this trivial problem by moving the define of EREFUSED down after ECONNREFUSED in errno.h (and clean up the indenting while touching this line). Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org
2016-08-20parisc: Fix automatic selection of cr16 clocksourceHelge Deller2-20/+0
Commit 54b66800907 (parisc: Add native high-resolution sched_clock() implementation) added support to use the CPU-internal cr16 counters as reliable clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK. Sadly the commit missed to remove the hack which prevented cr16 to become the default clocksource even on SMP systems. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # 4.7+
2016-08-19Make the hardened user-copy code depend on having a hardened allocatorLinus Torvalds1-0/+1
The kernel test robot reported a usercopy failure in the new hardened sanity checks, due to a page-crossing copy of the FPU state into the task structure. This happened because the kernel test robot was testing with SLOB, which doesn't actually do the required book-keeping for slab allocations, and as a result the hardening code didn't realize that the task struct allocation was one single allocation - and the sanity checks fail. Since SLOB doesn't even claim to support hardening (and you really shouldn't use it), the straightforward solution is to just make the usercopy hardening code depend on the allocator supporting it. Reported-by: kernel test robot <xiaolong.ye@intel.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-19Merge branch 'i2c/for-current' of ↵Linus Torvalds8-22/+34
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "I2C has some pretty standard driver bugfixes and one minor cleanup" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: meson: Use complete() instead of complete_all() i2c: brcmstb: Use complete() instead of complete_all() i2c: bcm-kona: Use complete() instead of complete_all() i2c: bcm-iproc: Use complete() instead of complete_all() i2c: at91: fix support of the "alternative command" feature i2c: ocores: add missed clk_disable_unprepare() on failure paths i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer() i2c: mux: demux-pinctrl: properly roll back when adding adapter fails
2016-08-19Merge tag 'dm-4.8-fixes-2' of ↵Linus Torvalds3-38/+53
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - a stable fix for DM round robin multipath path selector to disable preemption before using this_cpu_ptr() - a slight increase in DM crypt's mempool reserves to make swap ontop of DM crypt more performant - a few DM raid fixes to issues found while testing changes that were merged in v4.8-rc1 * tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm raid: support raid0 with missing metadata devices dm raid: enhance attempt_restore_of_faulty_devices() to support more devices dm raid: fix restoring of failed devices regression dm raid: fix frozen recovery regression dm crypt: increase mempool reserve to better support swapping dm round robin: do not use this_cpu_ptr() without having preemption disabled
2016-08-19Merge tag 'scsi-fixes' of ↵Linus Torvalds6-19/+29
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger oopses. The megaraid one fixes an attach failure on io mapped only cards, the fcoe one is an obvious problem in the error path and the aacraid one is a theoretical security issue (ability to trick the kernel into a buffer overrun)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: ses: Fix racy cleanup of /sys in remove_dev() mpt3sas: Fix resume on WarpDrive flash cards ipr: Fix sync scsi scan megaraid_sas: Fix probing cards without io port aacraid: Check size values after double-fetch from user fcoe: Use kfree_skb() instead of kfree()
2016-08-19Merge tag 'usb-4.8-rc3' of ↵Linus Torvalds31-79/+215
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of USB fixes for reported issues for your tree. The normal amount of gadget fixes, xhci fixes, new device ids, and a few other minor things. All of them have been in linux-next for a while, the full details are in the shortlog below" * tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (43 commits) xhci: don't dereference a xhci member after removing xhci usb: xhci: Fix panic if disconnect xhci: really enqueue zero length TRBs. xhci: always handle "Command Ring Stopped" events cdc-acm: fix wrong pipe type on rx interrupt xfers usb: misc: usbtest: add fix for driver hang usb: dwc3: gadget: stop processing on HWO set usb: dwc3: don't set last bit for ISOC endpoints usb: gadget: rndis: free response queue during REMOTE_NDIS_RESET_MSG usb: udc: core: fix error handling usb: gadget: fsl_qe_udc: off by one in setup_received_handle() usb/gadget: fix gadgetfs aio support. usb: gadget: composite: Fix return value in case of error usb: gadget: uvc: Fix return value in case of error usb: gadget: fix check in sync read from ep in gadgetfs usb: misc: usbtest: usbtest_do_ioctl may return positive integer usb: dwc3: fix missing platform_set_drvdata() in dwc3_of_simple_probe() usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe() usb: gadget: configfs: add mutex lock before unregister gadget usb: gadget: u_ether: fix dereference after null check coverify warning ...
2016-08-19Merge tag 'xfs-iomap-for-linus-4.8-rc3' of ↵Linus Torvalds11-28/+119
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs Pull xfs and iomap fixes from Dave Chinner: "Changes in this update: Regression fixes for XFS changes introduce in 4.8-rc1: - buffer IO accounting assert failure - ENOSPC block accounting reservation issue - DAX IO path page cache invalidation fix - rmapbt on-disk block count in agf - correct classification of rmap block type when updating AGFL. - iomap support for attribute fork mapping Regression fixes for iomap infrastructure in 4.8-rc1: - fiemap: honor FIEMAP_FLAG_SYNC - fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression - make mark_page_accessed and pagefault_disable usage consistent with other IO paths" * tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: xfs: remove OWN_AG rmap when allocating a block from the AGFL xfs: (re-)implement FIEMAP_FLAG_XATTR xfs: simplify xfs_file_iomap_begin iomap: mark ->iomap_end as optional iomap: prepare iomap_fiemap for attribute mappings iomap: fiemap should honor the FIEMAP_FLAG_SYNC flag iomap: remove superflous pagefault_disable from iomap_write_actor iomap: remove superflous mark_page_accessed from iomap_write_actor xfs: store rmapbt block count in the AGF xfs: don't invalidate whole file on DAX read/write xfs: fix bogus space reservation in xfs_iomap_write_allocate xfs: don't assert fail on non-async buffers on ioacct decrement
2016-08-19Merge tag 'hwmon-for-linus-v4.8-rc2' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: "Fix a bug in it87 driver and URLs in ftsteutates driver" * tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (ftsteutates) Correct ftp urls in driver documentation hwmon: (it87) Features mask must be 32 bit wide
2016-08-19KVM: x86: Expose more Intel AVX512 feature to guestLuwei Kang1-1/+2
Expose AVX512DQ, AVX512BW, AVX512VL feature to guest. Its spec can be found at: https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf Signed-off-by: Luwei Kang <luwei.kang@intel.com> [Resolved a trivial conflict with removed F(PCOMMIT).] Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2016-08-19mmu: don't pass *kvm to spte_write_protect and spte_*_dirtyBandan Das1-6/+6
That parameter isn't used in these functions, it's probably a historical artifact. Signed-off-by: Bandan Das <bsd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-19KVM: lapic: don't recalculate apic map table twice when enabling LAPICWanpeng Li1-2/+3
APIC map table is recalculated during reset APIC ID to the initial value when enabling LAPIC. This patch move the recalculate_apic_map() to the next branch since we don't need to recalculate apic map twice in current codes. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-19MIPS: KVM: Check for pfn noslot caseJames Hogan1-1/+1
When mapping a page into the guest we error check using is_error_pfn(), however this doesn't detect a value of KVM_PFN_NOSLOT, indicating an error HVA for the page. This can only happen on MIPS right now due to unusual memslot management (e.g. being moved / removed / resized), or with an Enhanced Virtual Memory (EVA) configuration where the default KVM_HVA_ERR_* and kvm_is_error_hva() definitions are unsuitable (fixed in a later patch). This case will be treated as a pfn of zero, mapping the first page of physical memory into the guest. It would appear the MIPS KVM port wasn't updated prior to being merged (in v3.10) to take commit 81c52c56e2b4 ("KVM: do not treat noslot pfn as a error pfn") into account (merged v3.8), which converted a bunch of is_error_pfn() calls to is_error_noslot_pfn(). Switch to using is_error_noslot_pfn() instead to catch this case properly. Fixes: 858dd5d45733 ("KVM/MIPS32: MMU/TLB operations for the Guest.") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Cc: <stable@vger.kernel.org> # 3.10.y- Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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