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2013-06-03host-libusb: Correct test for USB packet stateEd Maste1-1/+1
USB_RET_ASYNC is -6, so inflight was always false. Signed-off-by: Ed Maste <emaste@freebsd.org> Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-06-03Fix usage of USB_DEV_FLAG_IS_HOST flag.Michael Marineau1-1/+1
USB_DEV_FLAG_IS_HOST is the bit number, not value. Booting with a "Fitbit Base Station" USB dongle was triggering this assert. Signed-off-by: Michael Marineau <mike@marineau.org> Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-06-02tcx: Fix 24-bit display modeMark Cave-Ayland1-4/+6
Commit d08151bf (conversion of tcx to the memory API) broke the 24-bit mode of the tcx display adapter by accidentally passing in the final address of the dirty region to memory_region_reset_dirty() instead of its size. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-05-31target-i386: Fix aflag logic for CODE64 and the 0x67 prefixRichard Henderson1-15/+15
The code reorganization in commit 4a6fd938 broke handling of PREFIX_ADR. While fixing this, tidy and comment the code so that it's more obvious what's going on in setting both aflag and dflag. The TARGET_X86_64 ifdef can be eliminated because CODE64 expands to the constant zero when TARGET_X86_64 is undefined. Cc: Paolo Bonzini <pbonzini@redhat.com> Reported-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1369855851-21400-1-git-send-email-rth@twiddle.net Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-31s390/ipl: Fix spurious errors in virtioChristian Borntraeger1-0/+5
With the ccw ipl code sometimes an error message like "virtio: trying to map MMIO memory" or "Guest moved used index from %u to %u" appeared. Turns out that the ccw bios did not zero out the vring, which might cause stale values in avail->idx and friends, especially on reboot. Lets zero out the relevant fields. To activate the patch we need to rebuild s390-ccw.img as well. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-id: 1369309901-418-1-git-send-email-borntraeger@de.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-31Merge remote-tracking branch 'mdroth/qga-pull-2013-05-30' into stagingAnthony Liguori8-22/+127
# By Laszlo Ersek # Via Michael Roth * mdroth/qga-pull-2013-05-30: Makefile: create ".../var/run" when installing the POSIX guest agent qga: save state directory in ga_install_service() qga: remove undefined behavior in ga_install_service() qga: create state directory on win32 configure: don't save any fixed local_statedir for win32 qga: determine default state dir and pidfile dynamically osdep: add qemu_get_local_state_pathname() Message-id: 1369940341-9043-1-git-send-email-mdroth@linux.vnet.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-31Merge remote-tracking branch 'luiz/queue/qmp' into stagingAnthony Liguori4-9/+23
# By Luiz Capitulino (1) and others # Via Luiz Capitulino * luiz/queue/qmp: target-i386: Fix mask of pte index in memory mapping target-i386: fix abort on bad PML4E/PDPTE/PDE/PTE addresses qapi: pad GenericList value fields to 64 bits Message-id: 1370009905-4255-1-git-send-email-lcapitulino@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-31Merge remote-tracking branch 'bonzini/iommu-for-anthony' into stagingAnthony Liguori12-372/+422
# By Paolo Bonzini # Via Paolo Bonzini * bonzini/iommu-for-anthony: (22 commits) memory: add return value to address_space_rw/read/write memory: propagate errors on I/O dispatch exec: just use io_mem_read/io_mem_write for 8-byte I/O accesses memory: correctly handle endian-swapped 64-bit accesses memory: split accesses even when the old MMIO callbacks are used memory: add big endian support to access_with_adjusted_size memory: accept mismatching sizes in memory_region_access_valid memory: add address_space_access_valid exec: implement .valid.accepts for subpages memory: export memory_region_access_valid to exec.c exec: introduce memory_access_size exec: introduce memory_access_is_direct exec: expect mr->ops to be initialized for ROM memory: assign MemoryRegionOps to all regions memory: move unassigned_mem_ops to memory.c memory: add address_space_translate memory: dispatch unassigned accesses based on .valid.accepts exec: do not use error_mem_read exec: make io_mem_unassigned private cputlb: simplify tlb_set_page ... Message-id: 1369947836-2638-1-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-31target-i386: Fix mask of pte index in memory mappingQiao Nuohan1-1/+1
Function walk_pte() needs pte index to calculate virtual address. However, pte index of PAE paging or IA-32e paging is 9 bit, so the mask should be 0x1ff. Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com> Reviewed-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-05-31target-i386: fix abort on bad PML4E/PDPTE/PDE/PTE addressesLuiz Capitulino1-4/+6
The code used to walk IA-32e page-tables, and possibly PAE page-tables, uses the bit mask ~0xfff to get the next PML4E/PDPTE/PDE/PTE address. However, as we use a uint64_t to store the resulting address, that mask gets expanded to 0xfffffffffffff000 which not only ends up selecting reserved bits but also selects the XD bit (execute-disable) which happens to be enabled by Windows 8, causing qemu_get_ram_ptr() to abort. This commit fixes that problem by replacing ~0xfff by a correct mask that only selects the address bit range (ie. bits 51:12). Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2013-05-30seccomp: add the asynchronous I/O syscalls to the whitelistPaul Moore1-1/+4
In order to enable the asynchronous I/O functionality when using the seccomp sandbox we need to add the associated syscalls to the whitelist. Signed-off-by: Paul Moore <pmoore@redhat.com> Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com> Message-id: 20130529203001.20939.83322.stgit@localhost Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-30gdbstub: do not restart crashed guestPaolo Bonzini1-1/+3
If a guest has crashed with an internal error or similar, detaching gdb (or any other debugger action) should not restart it. Cc: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1369912840-18577-1-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-30qdev: fix get_fw_dev_path to support to add nothing to fw_dev_pathAmos Kong2-1/+15
Recent virtio refactoring in QEMU made virtio-bus become the parent bus of scsi-bus, and virtio-bus doesn't have get_fw_dev_path implementation, typename will be added to fw_dev_path by default, the new fw_dev_path could not be identified by seabios. It causes that bootindex parameter of scsi device doesn't work. This patch implements get_fw_dev_path() in BusClass, it will be called if bus doesn't implement the method, tyename will be added to fw_dev_path. If the implemented method returns NULL, nothing will be added to fw_dev_path. It also implements virtio_bus_get_fw_dev_path() to return NULL. Then QEMU will still pass original style of fw_dev_path to seabios. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1369814202-10346-1-git-send-email-akong@redhat.com -- v2: only add nothing to fw_dev_path when get_fw_dev_path() is implemented and returns NULL. then it will not effect other devices don't have get_fw_dev_path() implementation. v3: implement default get_fw_dev_path() in BusClass Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-30Makefile: create ".../var/run" when installing the POSIX guest agentLaszlo Ersek1-1/+9
Otherwise the default local state directory of POSIX qga won't exist after installation with a non-standard ${prefix} or DESTDIR. For now qga is the only user of ".../var" (= $qemu_localstatedir) too, so don't create that directory either unless we're installing the agent. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30qga: save state directory in ga_install_service()Laszlo Ersek3-3/+17
If the user selects a non-default state directory at service installation time, we should remember it in the registered service. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30qga: remove undefined behavior in ga_install_service()Laszlo Ersek1-8/+11
We shouldn't snprintf() from a buffer to the same buffer. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30qga: create state directory on win32Laszlo Ersek1-0/+14
On Win32 the local state directory is application specific and users might expect qemu-ga to create it automatically. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30configure: don't save any fixed local_statedir for win32Laszlo Ersek1-4/+8
... because now we can get the dynamic value with qemu_get_local_state_pathname(). The only user of the fixed value was the guest agent, which we've moved to qemu_get_local_state_pathname() in the previous patch. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30qga: determine default state dir and pidfile dynamicallyLaszlo Ersek1-6/+26
No effective change on POSIX, but on Win32 the defaults come from the environment / session. Since commit 39097daf ("qemu-ga: use key-value store to avoid recycling fd handles after restart") we've relied on the state directory for the fd handles' key-value store. Even though we don't support the guest-file-* commands on win32 yet, the key-value store is written, and it's the first use of the state directory on win32. We should have a sensible default for its location. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30osdep: add qemu_get_local_state_pathname()Laszlo Ersek3-0/+42
This function returns ${prefix}/var/RELATIVE_PATHNAME on POSIX-y systems, and <CSIDL_COMMON_APPDATA>/RELATIVE_PATHNAME on Win32. http://msdn.microsoft.com/en-us/library/bb762494.aspx [...] This folder is used for application data that is not user specific. For example, an application can store a spell-check dictionary, a database of clip art, or a log file in the CSIDL_COMMON_APPDATA folder. [...] Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30qapi: pad GenericList value fields to 64 bitsMichael Roth3-4/+16
With the introduction of native list types, we now have types such as int64List where the 'value' field is not a pointer, but the actual 64-bit value. On 32-bit architectures, this can lead to situations where 'next' field offset in GenericList does not correspond to the 'next' field in the types that we cast to GenericList when using the visit_next_list() interface, causing issues when we attempt to traverse linked list structures of these types. To fix this, pad the 'value' field of GenericList and other schema-defined/native *List types out to 64-bits. This is less memory-efficient for 32-bit architectures, but allows us to continue to rely on list-handling interfaces that target GenericList to simply visitor implementations. In the future we can improve efficiency by defaulting to using native C array backends to handle list of non-pointer types, which would be more memory efficient in itself and allow us to roll back this change. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-05-29memory: add return value to address_space_rw/read/writePaolo Bonzini2-22/+24
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: propagate errors on I/O dispatchPaolo Bonzini4-30/+36
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: just use io_mem_read/io_mem_write for 8-byte I/O accessesPaolo Bonzini2-30/+2
The memory API is able to split it in two 4-byte accesses. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: correctly handle endian-swapped 64-bit accessesPaolo Bonzini2-3/+12
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: split accesses even when the old MMIO callbacks are usedPaolo Bonzini1-17/+46
This is useful for 64-bit memory accesses. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: add big endian support to access_with_adjusted_sizePaolo Bonzini1-1/+5
This will be used to split 8-byte access down to two four-byte accesses. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: accept mismatching sizes in memory_region_access_validPaolo Bonzini1-9/+20
The memory API is able to use smaller/wider accesses than requested, match that in memory_region_access_valid. Of course, the accepts callback is still free to reject those accesses. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: add address_space_access_validPaolo Bonzini4-1/+43
The old-style IOMMU lets you check whether an access is valid in a given DMAContext. There is no equivalent for AddressSpace in the memory API, implement it with a lookup of the dispatch tree. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: implement .valid.accepts for subpagesPaolo Bonzini1-0/+20
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: export memory_region_access_valid to exec.cPaolo Bonzini2-4/+7
We'll use it to implement address_space_access_valid. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: introduce memory_access_sizePaolo Bonzini1-10/+17
This will be used by address_space_access_valid too. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: introduce memory_access_is_directPaolo Bonzini1-17/+22
After the previous patches, this is a common test for all read/write functions. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: expect mr->ops to be initialized for ROMPaolo Bonzini1-9/+0
There is no need to use the special phys_section_rom section. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: assign MemoryRegionOps to all regionsPaolo Bonzini1-1/+2
This allows to remove the checks on section->readonly. Simply, write accesses to ROM will not be considered "direct" and will go through mr->ops without any special intervention. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: move unassigned_mem_ops to memory.cPaolo Bonzini3-42/+16
reservation_ops is already doing the same thing. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: add address_space_translatePaolo Bonzini5-130/+131
Using phys_page_find to translate an AddressSpace to a MemoryRegionSection is unwieldy. It requires to pass the page index rather than the address, and later memory_region_section_addr has to be called. Replace memory_region_section_addr with a function that does all of it: call phys_page_find, compute the offset within the region, and check how big the current mapping is. This way, a large flat region can be written with a single lookup rather than a page at a time. address_space_translate will also provide a single point where IOMMU forwarding is implemented. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: dispatch unassigned accesses based on .valid.acceptsPaolo Bonzini2-26/+38
This provides the basics for detecting accesses to unassigned memory as soon as they happen, and also for a simple implementation of address_space_access_valid. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: do not use error_mem_readPaolo Bonzini1-14/+2
We will soon reach this case when doing (unaligned) accesses that span partly past the end of memory. We do not want to crash in that case. unassigned_mem_ops and rom_mem_ops are now the same. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: make io_mem_unassigned privatePaolo Bonzini3-11/+4
There is no reason to avoid a recompile before accessing unassigned memory. In the end it will be treated as MMIO anyway. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29cputlb: simplify tlb_set_pagePaolo Bonzini1-8/+5
The same "if" condition is repeated twice. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: drop useless #ifPaolo Bonzini1-2/+0
This code is only compiled for softmmu targets. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: eliminate io_mem_ramPaolo Bonzini3-19/+4
It is never used, the IOTLB always goes through io_mem_notdirty. In fact in softmmu_template.h, if it were, QEMU would crash just below the tests, as soon as io_mem_read/write dispatches to error_mem_read/write. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29virtio-pci: drop unused wmb macroMichael S. Tsirkin1-6/+0
The implementation is wrong for kvm, and it's unused anyway. Drop it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20130528102023.GA30055@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29tests: set MALLOC_PERTURB_ to expose memory bugsStefan Hajnoczi2-2/+6
glibc wipes malloc(3) memory when the MALLOC_PERTURB_ environment variable is set. The value of the environment variable determines the bit pattern used to wipe memory. For more information, see http://udrepper.livejournal.com/11429.html. Set MALLOC_PERTURB_ for gtester and qemu-iotests. Note we pick a random value from 1 to 255 to expose more bugs. If you need to reproduce a crash use 'show environment' in gdb to extract the MALLOC_PERTURB_ value from a core dump. Both make check and qemu-iotests pass with MALLOC_PERTURB_ enabled. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1369661331-28041-1-git-send-email-stefanha@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29pc_sysfw: allow flash (-pflash) memory to be used with KVMJordan Justen1-19/+31
When pc-sysfw.rom_only == 0, flash memory will be usable with kvm. In order to enable flash memory mode, a pflash device must be created. (For example, by using the -pflash command line parameter.) Usage of a flash memory device with kvm requires KVM_CAP_READONLY_MEM, and kvm will abort if a flash device is used with an older kvm which does not support this capability. If a flash device is not used, then qemu/kvm will operate in the original rom-mode. Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1369816047-16384-5-git-send-email-jordan.l.justen@intel.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29kvm: support using KVM_MEM_READONLY flag for regionsJordan Justen1-9/+28
For readonly memory regions and rom devices in romd_mode, we make use of the KVM_MEM_READONLY. A slot that uses KVM_MEM_READONLY can be read from and code can execute from the region, but writes will exit to qemu. For rom devices with !romd_mode, we force the slot to be removed so reads or writes to the region will exit to qemu. (Note that a memory region in this state is not executable within kvm.) v7: * Update for readable => romd_mode rename (5f9a5ea1) Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> (v4) Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> (v5) Message-id: 1369816047-16384-4-git-send-email-jordan.l.justen@intel.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29kvm: add kvm_readonly_mem_enabledJordan Justen3-0/+17
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1369816047-16384-3-git-send-email-jordan.l.justen@intel.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29isapc: Fix non-KVM qemu boot (read/write memory for isapc BIOS)Jordan Justen2-5/+16
The isapc machine with seabios currently requires the BIOS region to be read/write memory rather than read-only memory. KVM currently cannot support the BIOS as a ROM region, but qemu in non-KVM mode can. Based on this, isapc machine currently only works with KVM. To work-around this isapc issue, this change avoids marking the BIOS as readonly for isapc. This change also will allow KVM to start supporting ROM mode via KVM_CAP_READONLY_MEM. Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1369816047-16384-2-git-send-email-jordan.l.justen@intel.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-29Merge remote-tracking branch 'aneesh/for-upstream' into stagingAnthony Liguori3-9/+47
# By Aneesh Kumar K.V (3) and Gabriel de Perthuis (1) # Via Aneesh Kumar K.V * aneesh/for-upstream: hw/9pfs: Be robust against paths without FS_IOC_GETVERSION hw/9pfs: Use O_NOFOLLOW when opening files on server hw/9pfs: use O_NOFOLLOW for mapped readlink operation hw/9pfs: Fix segfault with 9p2000.u Message-id: 87zjvevx4s.fsf@linux.vnet.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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