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2011-09-25KVM: x86 emulator: fix Src2CL decodeAvi Kivity
Src2CL decode (used for double width shifts) erronously decodes only bit 3 of %rcx, instead of bits 7:0. Fix by decoding %cl in its entirety. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-09-25KVM: MMU: fix incorrect return of spteZhao Jin
__update_clear_spte_slow should return original spte while the current code returns low half of original spte combined with high half of new spte. Signed-off-by: Zhao Jin <cronozhj@gmail.com> Reviewed-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-08-16Merge branch 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: uses TASKSTATS, depends on NET KVM: fix TASK_DELAY_ACCT kconfig warning
2011-08-16KVM: uses TASKSTATS, depends on NETRandy Dunlap
CONFIG_TASKSTATS just had a change to use netlink, including a change to "depends on NET". Since "select" does not follow dependencies, KVM also needs to depend on NET to prevent build errors when CONFIG_NET is not enabled. Sample of the reported "undefined reference" build errors: taskstats.c:(.text+0x8f686): undefined reference to `nla_put' taskstats.c:(.text+0x8f721): undefined reference to `nla_reserve' taskstats.c:(.text+0x8f8fb): undefined reference to `init_net' taskstats.c:(.text+0x8f905): undefined reference to `netlink_unicast' taskstats.c:(.text+0x8f934): undefined reference to `kfree_skb' taskstats.c:(.text+0x8f9e9): undefined reference to `skb_clone' taskstats.c:(.text+0x90060): undefined reference to `__alloc_skb' taskstats.c:(.text+0x901e9): undefined reference to `skb_put' taskstats.c:(.init.text+0x4665): undefined reference to `genl_register_family' taskstats.c:(.init.text+0x4699): undefined reference to `genl_register_ops' taskstats.c:(.init.text+0x4710): undefined reference to `genl_unregister_ops' taskstats.c:(.init.text+0x471c): undefined reference to `genl_unregister_family' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-27KVM: fix TASK_DELAY_ACCT kconfig warningRandy Dunlap
Fix kconfig dependency warning: warning: (KVM) selects TASK_DELAY_ACCT which has unmet direct dependencies (TASKSTATS) Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-26atomic: use <linux/atomic.h>Arun Sharma
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-07-24Merge branch 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (143 commits) KVM: IOMMU: Disable device assignment without interrupt remapping KVM: MMU: trace mmio page fault KVM: MMU: mmio page fault support KVM: MMU: reorganize struct kvm_shadow_walk_iterator KVM: MMU: lockless walking shadow page table KVM: MMU: do not need atomicly to set/clear spte KVM: MMU: introduce the rules to modify shadow page table KVM: MMU: abstract some functions to handle fault pfn KVM: MMU: filter out the mmio pfn from the fault pfn KVM: MMU: remove bypass_guest_pf KVM: MMU: split kvm_mmu_free_page KVM: MMU: count used shadow pages on prepareing path KVM: MMU: rename 'pt_write' to 'emulate' KVM: MMU: cleanup for FNAME(fetch) KVM: MMU: optimize to handle dirty bit KVM: MMU: cache mmio info on page fault path KVM: x86: introduce vcpu_mmio_gva_to_gpa to cleanup the code KVM: MMU: do not update slot bitmap if spte is nonpresent KVM: MMU: fix walking shadow page table KVM guest: KVM Steal time registration ...
2011-07-24KVM: MMU: trace mmio page faultXiao Guangrong
Add tracepoints to trace mmio page fault Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: mmio page fault supportXiao Guangrong
The idea is from Avi: | We could cache the result of a miss in an spte by using a reserved bit, and | checking the page fault error code (or seeing if we get an ept violation or | ept misconfiguration), so if we get repeated mmio on a page, we don't need to | search the slot list/tree. | (https://lkml.org/lkml/2011/2/22/221) When the page fault is caused by mmio, we cache the info in the shadow page table, and also set the reserved bits in the shadow page table, so if the mmio is caused again, we can quickly identify it and emulate it directly Searching mmio gfn in memslots is heavy since we need to walk all memeslots, it can be reduced by this feature, and also avoid walking guest page table for soft mmu. [jan: fix operator precedence issue] Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: reorganize struct kvm_shadow_walk_iteratorXiao Guangrong
Reorganize it for good using the cache Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: lockless walking shadow page tableXiao Guangrong
Use rcu to protect shadow pages table to be freed, so we can safely walk it, it should run fastly and is needed by mmio page fault Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: do not need atomicly to set/clear spteXiao Guangrong
Now, the spte is just from nonprsent to present or present to nonprsent, so we can use some trick to set/clear spte non-atomicly as linux kernel does Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: introduce the rules to modify shadow page tableXiao Guangrong
Introduce some interfaces to modify spte as linux kernel does: - mmu_spte_clear_track_bits, it set the spte from present to nonpresent, and track the stat bits(accessed/dirty) of spte - mmu_spte_clear_no_track, the same as mmu_spte_clear_track_bits except tracking the stat bits - mmu_spte_set, set spte from nonpresent to present - mmu_spte_update, only update the stat bits Now, it does not allowed to set spte from present to present, later, we can drop the atomicly opration for X86_32 host, and it is the preparing work to get spte on X86_32 host out of the mmu lock Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: abstract some functions to handle fault pfnXiao Guangrong
Introduce handle_abnormal_pfn to handle fault pfn on page fault path, introduce mmu_invalid_pfn to handle fault pfn on prefetch path It is the preparing work for mmio page fault support Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: filter out the mmio pfn from the fault pfnXiao Guangrong
If the page fault is caused by mmio, the gfn can not be found in memslots, and 'bad_pfn' is returned on gfn_to_hva path, so we can use 'bad_pfn' to identify the mmio page fault. And, to clarify the meaning of mmio pfn, we return fault page instead of bad page when the gfn is not allowd to prefetch Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: remove bypass_guest_pfXiao Guangrong
The idea is from Avi: | Maybe it's time to kill off bypass_guest_pf=1. It's not as effective as | it used to be, since unsync pages always use shadow_trap_nonpresent_pte, | and since we convert between the two nonpresent_ptes during sync and unsync. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: split kvm_mmu_free_pageXiao Guangrong
Split kvm_mmu_free_page to kvm_mmu_isolate_page and kvm_mmu_free_page One is used to remove the page from cache under mmu lock and the other is used to free page table out of mmu lock Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: count used shadow pages on prepareing pathXiao Guangrong
Move counting used shadow pages from commiting path to preparing path to reduce tlb flush on some paths Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: rename 'pt_write' to 'emulate'Xiao Guangrong
If 'pt_write' is true, we need to emulate the fault. And in later patch, we need to emulate the fault even though it is not a pt_write event, so rename it to better fit the meaning Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: cleanup for FNAME(fetch)Xiao Guangrong
gw->pte_access is the final access permission, since it is unified with gw->pt_access when we walked guest page table: FNAME(walk_addr_generic): pte_access = pt_access & FNAME(gpte_access)(vcpu, pte, true); Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: optimize to handle dirty bitXiao Guangrong
If dirty bit is not set, we can make the pte access read-only to avoid handing dirty bit everywhere Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: cache mmio info on page fault pathXiao Guangrong
If the page fault is caused by mmio, we can cache the mmio info, later, we do not need to walk guest page table and quickly know it is a mmio fault while we emulate the mmio instruction Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: x86: introduce vcpu_mmio_gva_to_gpa to cleanup the codeXiao Guangrong
Introduce vcpu_mmio_gva_to_gpa to translate the gva to gpa, we can use it to cleanup the code between read emulation and write emulation Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: do not update slot bitmap if spte is nonpresentXiao Guangrong
Set slot bitmap only if the spte is present Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24KVM: MMU: fix walking shadow page tableXiao Guangrong
Properly check the last mapping, and do not walk to the next level if last spte is met Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-23virtio: expose for non-virtualization users tooOhad Ben-Cohen
virtio has been so far used only in the context of virtualization, and the virtio Kconfig was sourced directly by the relevant arch Kconfigs when VIRTUALIZATION was selected. Now that we start using virtio for inter-processor communications, we need to source the virtio Kconfig outside of the virtualization scope too. Moreover, some architectures might use virtio for both virtualization and inter-processor communications, so directly sourcing virtio might yield unexpected results due to conflicting selections. The simple solution offered by this patch is to always source virtio's Kconfig in drivers/Kconfig, and remove it from the appropriate arch Kconfigs. Additionally, a virtio menu entry has been added so virtio drivers don't show up in the general drivers menu. This way anyone can use virtio, though it's arguably less accessible (and neat!) for virtualization users now. Note: some architectures (mips and sh) seem to have a VIRTUALIZATION menu merely for sourcing virtio's Kconfig, so that menu is removed too. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-14KVM: Steal time implementationGlauber Costa
To implement steal time, we need the hypervisor to pass the guest information about how much time was spent running other processes outside the VM, while the vcpu had meaningful work to do - halt time does not count. This information is acquired through the run_delay field of delayacct/schedstats infrastructure, that counts time spent in a runqueue but not running. Steal time is a per-cpu information, so the traditional MSR-based infrastructure is used. A new msr, KVM_MSR_STEAL_TIME, holds the memory area address containing information about steal time This patch contains the hypervisor part of the steal time infrasructure, and can be backported independently of the guest portion. [avi, yongjie: export delayacct_on, to avoid build failures in some configs] Signed-off-by: Glauber Costa <glommer@redhat.com> Tested-by: Eric B Munson <emunson@mgebm.net> CC: Rik van Riel <riel@redhat.com> CC: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> CC: Peter Zijlstra <peterz@infradead.org> CC: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Yongjie Ren <yongjie.ren@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: MMU: Introduce is_last_gpte() to clean up walk_addr_generic()Takuya Yoshikawa
Suggested by Ingo and Avi. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: MMU: Rename the walk label in walk_addr_generic()Takuya Yoshikawa
The current name does not explain the meaning well. So give it a better name "retry_walk" to show that we are trying the walk again. This was suggested by Ingo Molnar. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: MMU: Clean up the error handling of walk_addr_generic()Takuya Yoshikawa
Avoid two step jump to the error handling part. This eliminates the use of the variables present and rsvd_fault. We also use the const type qualifier to show that write/user/fetch_fault do not change in the function. Both of these were suggested by Ingo Molnar. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12Revert "KVM: MMU: make kvm_mmu_reset_context() flush the guest TLB"Marcelo Tosatti
This reverts commit bee931d31e588b8eb86b7edee32fac2d16930cd7. TLB flush should be done lazily during guest entry, in kvm_mmu_load(). Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: MMU: make kvm_mmu_reset_context() flush the guest TLBAvi Kivity
kvm_set_cr0() and kvm_set_cr4(), and possible other functions, assume that kvm_mmu_reset_context() flushes the guest TLB. However, it does not. Fix by flushing the tlb (and syncing the new root as well). Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: MMU: Adjust shadow paging to work when SMEP=1 and CR0.WP=0Avi Kivity
When CR0.WP=0, we sometimes map user pages as kernel pages (to allow the kernel to write to them). Unfortunately this also allows the kernel to fetch from these pages, even if CR4.SMEP is set. Adjust for this by also setting NX on the spte in these circumstances. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Enable ERMS feature support for KVMYang, Wei
This patch exposes ERMS feature to KVM guests. The REP MOVSB/STOSB instruction can enhance fast strings attempts to move as much of the data with larger size load/stores as possible. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Expose RDWRGSFS bit to KVM guestsYang, Wei
This patch exposes RDWRGSFS bit to KVM guests. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Add RDWRGSFS support when setting CR4Yang, Wei
This patch adds RDWRGSFS support when setting CR4. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Enable DRNG feature support for KVMYang, Wei Y
This patch exposes DRNG feature to KVM guests. The RDRAND instruction can provide software with sequences of random numbers generated from white noise. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: fix XSAVE bit scanning (now properly)Andre Przywara
commit 123108f1c1aafd51d6a5c79cc04d7999dd88a930 tried to fix KVMs XSAVE valid feature scanning, but it was wrong. It was not considering the sparse nature of this bitfield, instead reading values from uninitialized members of the entries array. This patch now separates subleaf indicies from KVM's array indicies and fills the entry before querying it's value. This fixes AVX support in KVM guests. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Add instruction fetch checking when walking guest page tableYang, Wei Y
This patch adds instruction fetch checking when walking guest page table, to implement SMEP when emulating instead of executing natively. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Shan, Haitao <haitao.shan@intel.com> Signed-off-by: Li, Xin <xin.li@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Mask function7 ebx against host capability word9Yang, Wei Y
This patch masks CPUID leaf 7 ebx against host capability word9. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Shan, Haitao <haitao.shan@intel.com> Signed-off-by: Li, Xin <xin.li@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: Add SMEP support when setting CR4Yang, Wei Y
This patch adds SMEP handling when setting CR4. Signed-off-by: Yang, Wei <wei.y.yang@intel.com> Signed-off-by: Shan, Haitao <haitao.shan@intel.com> Signed-off-by: Li, Xin <xin.li@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-12KVM: nVMX: Fix bug preventing more than two levels of nestingNadav Har'El
The nested VMX feature is supposed to fully emulate VMX for the guest. This (theoretically) not only allows it to run its own guests, but also also to further emulate VMX for its own guests, and allow arbitrarily deep nesting. This patch fixes a bug (discovered by Kevin Tian) in handling a VMLAUNCH by L2, which prevented deeper nesting. Deeper nesting now works (I only actually tested L3), but is currently *absurdly* slow, to the point of being unusable. Signed-off-by: Nadav Har'El <nyh@il.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: x86 emulator: fold decode_cache into x86_emulate_ctxtAvi Kivity
This saves a lot of pointless casts x86_emulate_ctxt and decode_cache. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: x86 emulator: rename decode_cache::eip to _eipAvi Kivity
The name eip conflicts with a field of the same name in x86_emulate_ctxt, which we plan to fold decode_cache into. The name _eip is unfortunate, but what's really needed is a refactoring here, not a better name. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: VMX: Silence warning on 32-bit hostsJan Kiszka
a is unused now on CONFIG_X86_32. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: x86 emulator: Use opcode::execute for CLI/STI(FA/FB)Takuya Yoshikawa
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: x86 emulator: Use opcode::execute for LOOP/JCXZTakuya Yoshikawa
LOOP/LOOPcc : E0-E2 JCXZ/JECXZ/JRCXZ : E3 Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: x86 emulator: Clean up INT n/INTO/INT 3(CC/CD/CE)Takuya Yoshikawa
Call emulate_int() directly to avoid spaghetti goto's. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-12KVM: x86 emulator: Use opcode::execute for MOV(8C/8E)Takuya Yoshikawa
Different functions for those which take segment register operands. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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