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2008-07-20KVM: MMU: Optimize prefetch_page()Avi Kivity
Instead of reading each pte individually, read 256 bytes worth of ptes and batch process them. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Add support for mov r, sreg (0x8c) instructionGuillaume Thouvenin
Add support for mov r, sreg (0x8c) instruction Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Add support for mov seg, r (0x8e) instructionGuillaume Thouvenin
Add support for mov r, sreg (0x8c) instruction. [avi: drop the sreg decoding table in favor of 1:1 encoding] Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: adds support to mov r,imm (opcode 0xb8) instructionGuillaume Thouvenin
Add support to mov r, imm (0xb8) instruction. Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: add support for jmp far 0xeaGuillaume Thouvenin
Add support for jmp far (opcode 0xea) instruction. Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Update c->dst.bytes in decode instructionGuillaume Thouvenin
Update c->dst.bytes in decode instruction instead of instruction itself. It's needed because if c->dst.bytes is equal to 0, the instruction is not emulated. Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Prefixes segment functions that will be exported with "kvm_"Guillaume Thouvenin
Prefixes functions that will be exported with kvm_. We also prefixed set_segment() even if it still static to be coherent. signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MTRR supportAvi Kivity
Add emulation for the memory type range registers, needed by VMware esx 3.5, and by pci device assignment. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Order segment register constants in the same way as cpu operand encodingAvi Kivity
This can be used to simplify the x86 instruction decoder. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Enable NMI with in-kernel irqchipSheng Yang
Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: IOAPIC/LAPIC: Enable NMI supportSheng Yang
[avi: fix ia64 build breakage] Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Remove unnecessary ->decache_regs() callAvi Kivity
Since we aren't modifying any register, there's no need to decache the register state. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Remove decache_vcpus_on_cpu() and related callbacksAvi Kivity
Obsoleted by the vmx-specific per-cpu list. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Add list of potentially locally cached vcpusAvi Kivity
VMX hardware can cache the contents of a vcpu's vmcs. This cache needs to be flushed when migrating a vcpu to another cpu, or (which is the case that interests us here) when disabling hardware virtualization on a cpu. The current implementation of decaching iterates over the list of all vcpus, picks the ones that are potentially cached on the cpu that is being offlined, and flushes the cache. The problem is that it uses mutex_trylock() to gain exclusive access to the vcpu, which fires off a (benign) warning about using the mutex in an interrupt context. To avoid this, and to make things generally nicer, add a new per-cpu list of potentially cached vcus. This makes the decaching code much simpler. The list is vmx-specific since other hardware doesn't have this issue. [andrea: fix crash on suspend/resume] Signed-off-by: Andrea Arcangeli <andrea@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Handle virtualization instruction #UD faults during rebootAvi Kivity
KVM turns off hardware virtualization extensions during reboot, in order to disassociate the memory used by the virtualization extensions from the processor, and in order to have the system in a consistent state. Unfortunately virtual machines may still be running while this goes on, and once virtualization extensions are turned off, any virtulization instruction will #UD on execution. Fix by adding an exception handler to virtualization instructions; if we get an exception during reboot, we simply spin waiting for the reset to complete. If it's a true exception, BUG() so we can have our stack trace. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: Fix false flooding when a pte points to page tableAvi Kivity
The KVM MMU tries to detect when a speculative pte update is not actually used by demand fault, by checking the accessed bit of the shadow pte. If the shadow pte has not been accessed, we deem that page table flooded and remove the shadow page table, allowing further pte updates to proceed without emulation. However, if the pte itself points at a page table and only used for write operations, the accessed bit will never be set since all access will happen through the emulator. This is exactly what happens with kscand on old (2.4.x) HIGHMEM kernels. The kernel points a kmap_atomic() pte at a page table, and then proceeds with read-modify-write operations to look at the dirty and accessed bits. We get a false flood trigger on the kmap ptes, which results in the mmu spending all its time setting up and tearing down shadows. Fix by setting the shadow accessed bit on emulated accesses. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Trivial vmcs_write64() code simplificationAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: SVM: Fake MSR_K7 performance countersChris Lalancette
Attached is a patch that fixes a guest crash when booting older Linux kernels. The problem stems from the fact that we are currently emulating MSR_K7_EVNTSEL[0-3], but not emulating MSR_K7_PERFCTR[0-3]. Because of this, setup_k7_watchdog() in the Linux kernel receives a GPF when it attempts to write into MSR_K7_PERFCTR, which causes an OOPs. The patch fixes it by just "fake" emulating the appropriate MSRs, throwing away the data in the process. This causes the NMI watchdog to not actually work, but it's not such a big deal in a virtualized environment. When we get a write to one of these counters, we printk_ratelimit() a warning. I decided to print it out for all writes, even if the data is 0; it doesn't seem to make sense to me to special case when data == 0. Tested by myself on a RHEL-4 guest, and Joerg Roedel on a Windows XP 64-bit guest. Signed-off-by: Chris Lalancette <clalance@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: PIT: support mode 3Aurelien Jarno
The in-kernel PIT emulation ignores pending timers if operating under mode 3, which for example Hurd uses. This mode should output a square wave, high for (N+1)/2 counts and low for (N-1)/2 counts. As we only care about the resulting interrupts, the period is N, and mode 3 is the same as mode 2 with regard to interrupts. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Handle vma regions with no backing pageAnthony Liguori
This patch allows VMAs that contain no backing page to be used for guest memory. This is useful for assigning mmio regions to a guest. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: SVM: add tracing support for TDP page faultsJoerg Roedel
To distinguish between real page faults and nested page faults they should be traced as different events. This is implemented by this patch. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: SVM: add missing kvmtrace markersJoerg Roedel
This patch adds the missing kvmtrace markers to the svm module of kvm. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: add missing kvmtrace bitsJoerg Roedel
This patch adds some kvmtrace bits to the generic x86 code where it is instrumented from SVM. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: SVM: implement dedicated INTR exit handlerJoerg Roedel
With an exit handler for INTR intercepts its possible to account them using kvmtrace. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: SVM: implement dedicated NMI exit handlerJoerg Roedel
With an exit handler for NMI intercepts its possible to account them using kvmtrace. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: move APIC_ACCESS trace entry to generic codeJoerg Roedel
This patch moves the trace entry for APIC accesses from the VMX code to the generic lapic code. This way APIC accesses from SVM will also be traced. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: add statics were possible, function definition in lapic.hHarvey Harrison
Noticed by sparse: arch/x86/kvm/vmx.c:1583:6: warning: symbol 'vmx_disable_intercept_for_msr' was not declared. Should it be static? arch/x86/kvm/x86.c:3406:5: warning: symbol 'kvm_task_switch_16' was not declared. Should it be static? arch/x86/kvm/x86.c:3429:5: warning: symbol 'kvm_task_switch_32' was not declared. Should it be static? arch/x86/kvm/mmu.c:1968:6: warning: symbol 'kvm_mmu_remove_one_alloc_mmu_page' was not declared. Should it be static? arch/x86/kvm/mmu.c:2014:6: warning: symbol 'mmu_destroy_caches' was not declared. Should it be static? arch/x86/kvm/lapic.c:862:5: warning: symbol 'kvm_lapic_get_base' was not declared. Should it be static? arch/x86/kvm/i8254.c:94:5: warning: symbol 'pit_get_gate' was not declared. Should it be static? arch/x86/kvm/i8254.c:196:5: warning: symbol '__pit_timer_fn' was not declared. Should it be static? arch/x86/kvm/i8254.c:561:6: warning: symbol '__inject_pit_timer_intr' was not declared. Should it be static? Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: remove long -> void *user -> long castChristian Borntraeger
kvm_dev_ioctl casts the arg value to void __user *, just to recast it again to long. This seems unnecessary. According to objdump the binary code on x86 is unchanged by this patch. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-17Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: [PATCH] ocfs2: fix oops in mmap_truncate testing configfs: call drop_link() to cleanup after create_link() failure configfs: Allow ->make_item() and ->make_group() to return detailed errors. configfs: Fix failing mkdir() making racing rmdir() fail configfs: Fix deadlock with racing rmdir() and rename() configfs: Make configfs_new_dirent() return error code instead of NULL configfs: Protect configfs_dirent s_links list mutations configfs: Introduce configfs_dirent_lock ocfs2: Don't snprintf() without a format. ocfs2: Fix CONFIG_OCFS2_DEBUG_FS #ifdefs ocfs2/net: Silence build warnings on sparc64 ocfs2: Handle error during journal load ocfs2: Silence an error message in ocfs2_file_aio_read() ocfs2: use simple_read_from_buffer() ocfs2: fix printk format warnings with OCFS2_FS_STATS=n [PATCH 2/2] ocfs2: Instrument fs cluster locks [PATCH 1/2] ocfs2: Add CONFIG_OCFS2_FS_STATS config option
2008-07-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6: pcmcia: ide-cs: Remove outdated comment pcmcia: fix cisinfo_t removal pcmcia: fix return value in cm4000_cs.c
2008-07-17Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix asm/e820.h for userspace inclusion x86: fix numaq_tsc_disable x86: fix kernel_physical_mapping_init() for large x86 systems
2008-07-17Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: ftrace: do not trace library functions ftrace: do not trace scheduler functions ftrace: fix lockup with MAXSMP ftrace: fix merge buglet
2008-07-17x86: fix asm/e820.h for userspace inclusionRusty Russell
asm-x86/e820.h is included from userspace. 'x86: make e820.c to have common functions' (b79cd8f1268bab57ff85b19d131f7f23deab2dee) broke it: make -C Documentation/lguest cc -Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include lguest.c -lz -o lguest In file included from ../../include/asm-x86/bootparam.h:8, from lguest.c:45: ../../include/asm/e820.h:66: error: expected ‘)’ before ‘start’ ../../include/asm/e820.h:67: error: expected ‘)’ before ‘start’ ../../include/asm/e820.h:68: error: expected ‘)’ before ‘start’ ../../include/asm/e820.h:72: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘e820_update_range’ ... Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-17x86: fix numaq_tsc_disableYinghai Lu
fix: arch/x86/kernel/numaq_32.c: In function ‘numaq_tsc_disable’: arch/x86/kernel/numaq_32.c:99: warning: ‘return’ with a value, in function returning void Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-17Merge branch 'linus' into x86/urgentIngo Molnar
2008-07-17fix build error of arch/ia64/kvm/*Takashi Iwai
Fix calls of smp_call_function*() in arch/ia64/kvm for recent API changes. CC [M] arch/ia64/kvm/kvm-ia64.o arch/ia64/kvm/kvm-ia64.c: In function 'handle_global_purge': arch/ia64/kvm/kvm-ia64.c:398: error: too many arguments to function 'smp_call_function_single' arch/ia64/kvm/kvm-ia64.c: In function 'kvm_vcpu_kick': arch/ia64/kvm/kvm-ia64.c:1696: error: too many arguments to function 'smp_call_function_single' Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-17Merge branch 'ptrace-cleanup' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace * 'ptrace-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace: fix dangling zombie when new parent ignores children do_wait: return security_task_wait() error code in place of -ECHILD ptrace children revamp do_wait reorganization
2008-07-17Update scripts/Makefile.fwinst to cope with older makeDavid Woodhouse
Also fix unwanted rebuilds of the firmware/ihex2fw tool by including the .ihex2fw.cmd file when present. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Reported-and-tested-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-17Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] dasd: use -EOPNOTSUPP instead of -ENOTSUPP [S390] qdio: new qdio driver. [S390] cio: Export chsc_error_from_response(). [S390] vmur: Fix return code handling. [S390] Fix stacktrace compile bug. [S390] Increase default warning stacksize. [S390] dasd: Fix cleanup in dasd_{fba,diag}_check_characteristics(). [S390] chsc headers userspace cleanup [S390] dasd: fix unsolicited SIM handling. [S390] zfcpdump: Make SCSI disk dump tool recognize storage holes
2008-07-17Fix collateral damage to top level MakefileGrant Likely
The patch named "powerpc/mpc5121: Add clock driver", also contained an unrelated and bogus change to the top-level makefile. This patch backs out the bad bit. SHA1 of offending patch: 137e95906e294913fab02162e8a1948ade49acb5) Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Repented-by: John Rigby <jrigby@freescale.com> [ Heh. Normally I pick these out from the diffstats, but I guess I've grown to trust the ppc tree too much ;) - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-17ftrace: do not trace library functionsIngo Molnar
make function tracing more robust: do not trace library functions. We've already got a sizable list of exceptions: ifdef CONFIG_FTRACE # Do not profile string.o, since it may be used in early boot or vdso CFLAGS_REMOVE_string.o = -pg # Also do not profile any debug utilities CFLAGS_REMOVE_spinlock_debug.o = -pg CFLAGS_REMOVE_list_debug.o = -pg CFLAGS_REMOVE_debugobjects.o = -pg CFLAGS_REMOVE_find_next_bit.o = -pg CFLAGS_REMOVE_cpumask.o = -pg CFLAGS_REMOVE_bitmap.o = -pg endif ... and the pattern has been that random library functionality showed up in ftrace's critical path (outside of its recursion check), causing hard to debug lockups. So be a bit defensive about it and exclude all lib/*.o functions by default. It's not that they are overly interesting for tracing purposes anyway. Specific ones can still be traced, in an opt-in manner. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-17ftrace: do not trace scheduler functionsIngo Molnar
do not trace scheduler functions - it's still a bit fragile and can lock up with: http://redhat.com/~mingo/misc/config-Thu_Jul_17_13_34_52_CEST_2008 Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-17ftrace: fix lockup with MAXSMPIngo Molnar
MAXSMP brings in lots of use of various bitops in smp_processor_id() and friends - causing ftrace to lock up during bootup: calling anon_inode_init+0x0/0x130 initcall anon_inode_init+0x0/0x130 returned 0 after 0 msecs calling acpi_event_init+0x0/0x57 [ hard hang ] So exclude the bitops facilities from tracing. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-17[S390] dasd: use -EOPNOTSUPP instead of -ENOTSUPPStefan Haberland
return value -ENOTSUPP is not valid in userspace context, use -EOPNOTSUPP instead Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-07-17[S390] qdio: new qdio driver.Jan Glauber
List of major changes: - split qdio driver into several files - seperation of thin interrupt code - improved handling for multiple thin interrupt devices - inbound and outbound processing now always runs in tasklet context - significant less tasklet schedules per interrupt needed - merged qebsm with non-qebsm handling - cleanup qdio interface and added kerneldoc - coding style Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com> Reviewed-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-07-17[S390] cio: Export chsc_error_from_response().Cornelia Huck
Make chsc_error_from_response() available to chsc callers outside of chsc.c (namely qdio) to avoid duplicating error checking code. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-07-17[S390] vmur: Fix return code handling.Frank Munzert
Use -EOPNOTSUPP instead of -ENOTSUPP. Signed-off-by: Frank Munzert <munzert@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-07-17[S390] Fix stacktrace compile bug.Heiko Carstens
Add missing module.h include to fix this: CC arch/s390/kernel/stacktrace.o arch/s390/kernel/stacktrace.c:84: warning: data definition has no type or storage class arch/s390/kernel/stacktrace.c:84: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/s390/kernel/stacktrace.c:84: warning: parameter names (without types) in function declaration arch/s390/kernel/stacktrace.c:97: warning: data definition has no type or storage class arch/s390/kernel/stacktrace.c:97: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/s390/kernel/stacktrace.c:97: warning: parameter names (without types) in function declaration Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-07-17[S390] Increase default warning stacksize.Heiko Carstens
Compiling a kernel with allmodconfig or allyesconfig results in tons of gcc warnings, because the default maximum stacksize from which on gcc will emit a warning is just 256 bytes. Increase this to 2048, so these warnings don't distract from the real warnings that we need to watch at. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-07-17[S390] dasd: Fix cleanup in dasd_{fba,diag}_check_characteristics().Cornelia Huck
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
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