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* KVM: update mmu documetation for role.nxeGui Jianfeng2010-08-01
| | | | | | | | There's no member "cr4_nxe" in struct kvm_mmu_page_role, it names "nxe" now. Update mmu document. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* KVM: MMU: Fix free memory accounting race in mmu_alloc_roots()Avi Kivity2010-08-01
| | | | | | | | | | | We drop the mmu lock between freeing memory and allocating the roots; this allows some other vcpu to sneak in and allocate memory. While the race is benign (resulting only in temporary overallocation, not oom) it is simple and easy to fix by moving the freeing close to the allocation. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* KVM: inject #UD if instruction emulation fails and exit to userspaceGleb Natapov2010-08-01
| | | | | | | | | | Do not kill VM when instruction emulation fails. Inject #UD and report failure to userspace instead. Userspace may choose to reenter guest if vcpu is in userspace (cpl == 3) in which case guest OS will kill offending process and continue running. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* KVM: Document KVM_SET_BOOT_CPU_IDAvi Kivity2010-08-01
| | | | Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Document KVM_SET_IDENTITY_MAP ioctlAvi Kivity2010-08-01
| | | | Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: MMU: make kvm_mmu_zap_page() return the number of pages it actually freedGui Jianfeng2010-08-01
| | | | | | | | | | Currently, kvm_mmu_zap_page() returning the number of freed children sp. This might confuse the caller, because caller don't know the actual freed number. Let's make kvm_mmu_zap_page() return the number of pages it actually freed. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: MMU: Fix debug output error in walk_addr()Gui Jianfeng2010-08-01
| | | | | | | Fix a debug output error in walk_addr Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: MMU: mark page table dirty when a pte is actually modifiedGui Jianfeng2010-08-01
| | | | | | | | Sometime cmpxchg_gpte doesn't modify gpte, in such case, don't mark page table page as dirty. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: SVM: Allow EFER.LMSLE to be set with nested svmJoerg Roedel2010-08-01
| | | | | | | | | This patch enables setting of efer bit 13 which is allowed in all SVM capable processors. This is necessary for the SLES11 version of Xen 4.0 to boot with nested svm. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: SVM: Dump vmcb contents on failed vmrunJoerg Roedel2010-08-01
| | | | | | | | This patch adds a function to dump the vmcb into the kernel log and calls it after a failed vmrun to ease debugging. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Get rid of KVM_REQ_KICKAvi Kivity2010-08-01
| | | | | | | | | | KVM_REQ_KICK poisons vcpu->requests by having a bit set during normal operation. This causes the fast path check for a clear vcpu->requests to fail all the time, triggering tons of atomic operations. Fix by replacing KVM_REQ_KICK with a vcpu->guest_mode atomic. Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: do not inject exception directly into vcpuGleb Natapov2010-08-01
| | | | | | | | Return exception as a result of instruction emulation and handle injection in KVM code. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: move interruptibility state tracking out of emulatorGleb Natapov2010-08-01
| | | | | | | Emulator shouldn't access vcpu directly. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: handle shadowed registers outside emulatorGleb Natapov2010-08-01
| | | | | | | Emulator shouldn't access vcpu directly. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: use shadowed register in emulate_sysexit()Gleb Natapov2010-08-01
| | | | | | | | emulate_sysexit() should use shadowed registers copy instead of looking into vcpu state directly. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: set RFLAGS outside x86 emulator codeGleb Natapov2010-08-01
| | | | | | | Removes the need for set_flags() callback. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: advance RIP outside x86 emulator codeGleb Natapov2010-08-01
| | | | | | | | Return new RIP as part of instruction emulation result instead of updating KVM's RIP from x86 emulator code. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: handle emulation failure case firstGleb Natapov2010-08-01
| | | | | | | If emulation failed return immediately. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: do not inject #PF in (read|write)_emulated() callbacksGleb Natapov2010-08-01
| | | | | | | Return error to x86 emulator instead of injection exception behind its back. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: remove export of emulator_write_emulated()Gleb Natapov2010-08-01
| | | | | | | It is not called directly outside of the file it's defined in anymore. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: x86_emulate_insn() return -1 only in case of emulation ↵Gleb Natapov2010-08-01
| | | | | | | | | | | | | | | failure Currently emulator returns -1 when emulation failed or IO is needed. Caller tries to guess whether emulation failed by looking at other variables. Make it easier for caller to recognise error condition by always returning -1 in case of failure. For this new emulator internal return value X86EMUL_IO_NEEDED is introduced. It is used to distinguish between error condition (which returns X86EMUL_UNHANDLEABLE) and condition that requires IO exit to userspace to continue emulation. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: fill in run->mmio details in (read|write)_emulated functionGleb Natapov2010-08-01
| | | | | | | | | Fill in run->mmio details in (read|write)_emulated function just like pio does. There is no point in filling only vcpu fields there just to copy them into vcpu->run a little bit later. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: fix X86EMUL_RETRY_INSTR and X86EMUL_CMPXCHG_FAILED valuesGleb Natapov2010-08-01
| | | | | | | | | | | Currently X86EMUL_PROPAGATE_FAULT, X86EMUL_RETRY_INSTR and X86EMUL_CMPXCHG_FAILED have the same value so caller cannot distinguish why function such as emulator_cmpxchg_emulated() (which can return both X86EMUL_PROPAGATE_FAULT and X86EMUL_CMPXCHG_FAILED) failed. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: make (get|set)_dr() callback return error if it failsGleb Natapov2010-08-01
| | | | | | | | Make (get|set)_dr() callback return error if it fails instead of injecting exception behind emulator's back. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: make set_cr() callback return error if it failsGleb Natapov2010-08-01
| | | | | | | | Make set_cr() callback return error if it fails instead of injecting #GP behind emulator's back. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: cleanup some direct calls into kvm to use existing callbacksGleb Natapov2010-08-01
| | | | | | | | Use callbacks from x86_emulate_ops to access segments instead of calling into kvm directly. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: add get_cached_segment_base() callback to x86_emulate_opsGleb Natapov2010-08-01
| | | | | | | | | On VMX it is expensive to call get_cached_descriptor() just to get segment base since multiple vmcs_reads are done instead of only one. Introduce new call back get_cached_segment_base() for efficiency. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: add (set|get)_msr callbacks to x86_emulate_opsGleb Natapov2010-08-01
| | | | | | | | Add (set|get)_msr callbacks to x86_emulate_ops instead of calling them directly. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: add (set|get)_dr callbacks to x86_emulate_opsGleb Natapov2010-08-01
| | | | | | | | Add (set|get)_dr callbacks to x86_emulate_ops instead of calling them directly. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: handle "far address" source operandGleb Natapov2010-08-01
| | | | | | | | | | ljmp/lcall instruction operand contains address and segment. It can be 10 bytes long. Currently we decode it as two different operands. Fix it by introducing new kind of operand that can hold entire far address. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: cleanup nop emulationGleb Natapov2010-08-01
| | | | | | | Make it more explicit what we are checking for. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: cleanup xchg emulationGleb Natapov2010-08-01
| | | | | | | | Dst operand is already initialized during decoding stage. No need to reinitialize. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: fix Move r/m16 to segment register decodingGleb Natapov2010-08-01
| | | | | | | This instruction does not need generic decoding for its dst operand. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: introduce read cacheGleb Natapov2010-08-01
| | | | | | | | | Introduce read cache which is needed for instruction that require more then one exit to userspace. After returning from userspace the instruction will be re-executed with cached read value. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: VMX: Avoid writing HOST_CR0 every entryAvi Kivity2010-08-01
| | | | | | | | | | | cr0.ts may change between entries, so we copy cr0 to HOST_CR0 before each entry. That is slow, so instead, set HOST_CR0 to have TS set unconditionally (which is a safe value), and issue a clts() just before exiting vcpu context if the task indeed owns the fpu. Saves ~50 cycles/exit. Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: kvm_pdptr_read() may sleepAvi Kivity2010-08-01
| | | | | | Annotate it thusly. Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86: avoid unnecessary bitmap allocation when memslot is cleanTakuya Yoshikawa2010-08-01
| | | | | | | | | | | | | | | | Although we always allocate a new dirty bitmap in x86's get_dirty_log(), it is only used as a zero-source of copy_to_user() and freed right after that when memslot is clean. This patch uses clear_user() instead of doing this unnecessary zero-source allocation. Performance improvement: as we can expect easily, the time needed to allocate a bitmap is completely reduced. In my test, the improved ioctl was about 4 to 10 times faster than the original one for clean slots. Furthermore, reducing memory allocations and copies will produce good effects to caches too. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: VMX: Simplify vmx_get_nmi_mask()Avi Kivity2010-08-01
| | | | | | !! is not needed due to the cast to bool. Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Avoid killing userspace through guest SRAO MCE on unmapped pagesHuang Ying2010-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | In common cases, guest SRAO MCE will cause corresponding poisoned page be un-mapped and SIGBUS be sent to QEMU-KVM, then QEMU-KVM will relay the MCE to guest OS. But it is reported that if the poisoned page is accessed in guest after unmapping and before MCE is relayed to guest OS, userspace will be killed. The reason is as follows. Because poisoned page has been un-mapped, guest access will cause guest exit and kvm_mmu_page_fault will be called. kvm_mmu_page_fault can not get the poisoned page for fault address, so kernel and user space MMIO processing is tried in turn. In user MMIO processing, poisoned page is accessed again, then userspace is killed by force_sig_info. To fix the bug, kvm_mmu_page_fault send HWPOISON signal to QEMU-KVM and do not try kernel and user space MMIO processing for poisoned page. [xiao: fix warning introduced by avi] Reported-by: Max Asbock <masbock@linux.vnet.ibm.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* Merge branch 'for_linus' of ↵Linus Torvalds2010-07-28
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: x86,kgdb: Fix hw breakpoint regression
| * x86,kgdb: Fix hw breakpoint regressionJason Wessel2010-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HW breakpoints events stopped working correctly with kgdb as a result of commit: 018cbffe6819f6f8db20a0a3acd9bab9bfd667e4 (Merge commit 'v2.6.33' into perf/core). The regression occurred because the behavior changed for setting NOTIFY_STOP as the return value to the die notifier if the breakpoint was known to the HW breakpoint API. Because kgdb is using the HW breakpoint API to register HW breakpoints slots, it must also now implement the overflow_handler call back else kgdb does not get to see the events from the die notifier. The kgdb_ll_trap function will be changed to be general purpose code which can allow an easy way to implement the hw_breakpoint API overflow call back. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Dongdong Deng <dongdong.deng@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds2010-07-28
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] ibmvscsi: Fix oops when an interrupt is pending during probe [SCSI] zfcp: Update status read mempool [SCSI] zfcp: Do not wait for SBALs on stopped queue [SCSI] zfcp: Fix check whether unchained ct_els is possible [SCSI] ipr: fix resource path display and formatting
| * | [SCSI] ibmvscsi: Fix oops when an interrupt is pending during probeAnton Blanchard2010-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A driver needs to be ready to take an interrupt as soon as it registers an interrupt handler. I noticed the following oops when testing kdump: ipr: IBM Power RAID SCSI Device Driver version: 2.5.0 (February 11, 2010) ibmvscsi 30000002: SRP_VERSION: 16.a ibmvscsi 30000002: SRP_VERSION: 16.a Unable to handle kernel paging request for data at address 0x00000000 ... pc: c000000004085e34: .tasklet_action+0xf4/0x1dc ... c000000004086fe4 .__do_softirq+0x16c/0x2c0 c00000000403138c .call_do_softirq+0x14/0x24 c00000000400ee14 .do_softirq+0xa0/0x104 c00000000408690c .irq_exit+0x70/0xd0 c00000000400f190 .do_IRQ+0x214/0x2a8 c000000004004804 hardware_interrupt_entry+0x1c/0x98 --- Exception: 501 (Hardware Interrupt) at c00000000400c544 .raw_local_irq_restore+0x48/0x54 c00000000465d2a8 ._raw_spin_unlock_irqrestore+0x74/0xa0 c0000000040e7f00 .__setup_irq+0x2ec/0x3f0 c0000000040e8198 .request_threaded_irq+0x194/0x22c c00000000446d854 .rpavscsi_init_crq_queue+0x284/0x3f0 c00000000446c764 .ibmvscsi_probe+0x688/0x710 c00000000402903c .vio_bus_probe+0x37c/0x3e4 c000000004403f10 .driver_probe_device+0xec/0x1b8 c000000004404088 .__driver_attach+0xac/0xf4 c000000004403184 .bus_for_each_dev+0x98/0x104 c000000004403c98 .driver_attach+0x40/0x60 c0000000044026f0 .bus_add_driver+0x154/0x324 c0000000044045d0 .driver_register+0xe8/0x1ac c00000000402b2a8 .vio_register_driver+0x54/0x74 c000000004933ea4 .ibmvscsi_module_init+0x80/0xc0 c000000004009834 .do_one_initcall+0x98/0x1d8 c0000000049005b4 .kernel_init+0x27c/0x33c c000000004031550 .kernel_thread+0x54/0x70 srp_task needs to be setup before request_irq. The patch below fixes the oops. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] zfcp: Update status read mempoolChristof Schmitt2010-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 64deb6efdc5504ce97b5c1c6f281fffbc150bd93 changed the way status read buffers are handled but forgot to adjust the mempool to the new size. Add the call to resize the mempool after the exchange config data. Also use the define instead of the hard coded number in the fsf callback for consistency. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] zfcp: Do not wait for SBALs on stopped queueChristof Schmitt2010-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trying to read the FC host statistics on an offline adapter results in a 5 seconds wait. Reading the statistics tries to issue an exchange port data request which first waits up to 5 seconds for an entry in the request queue. Change the strategy for getting a free SBAL to exit when the queue is stopped. Reading the statistics will then fail without the wait. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] zfcp: Fix check whether unchained ct_els is possibleSwen Schillig2010-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | A false check was performed whether an unchained ct_els is possible or not. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] ipr: fix resource path display and formattingWayne Boyer2010-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was possible to overflow the buffer used to print out the formatted version of the resource path. The fix is to limit the number of bytes that get formatted. This patch also updates the ipr_show_resource_path function to display the resource address for devices that are attached to adapters that don't support resource paths. Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2010-07-28
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied high regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register wm8350-regulator: fix wm8350_register_regulator error handling ab3100: fix off-by-one value range checking for voltage selector
| * | | davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied highSekhar Nori2010-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per the da850/omap-l138 Beta EVM SOM schematic, the DEFDCDC2 and DEFDCDC3 lines are tied high. This leads to a 3.3V IO and 1.2V CVDD voltage. Pass the right platform data to the TPS6507x driver so it can operate on the DEFDCDC{2,3}_HIGH register to read and change voltage levels. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| * | | regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH registerAnuj Aggarwal2010-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> In TPS6507x, depending on the status of DEFDCDC{2,3} pin either DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or programmed to change the output voltage. The current driver assumes DEFDCDC{2,3} pins are always tied low and thus operates only on DEFDCDC{2,3}_LOW register. This need not always be the case (as is found on OMAP-L138 EVM). Unfortunately, software cannot read the status of DEFDCDC{2,3} pins. So, this information is passed through platform data depending on how the board is wired. Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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