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2020-07-23KVM: PPC: Clean up redundant kvm_run parameters in assemblyTianjia Zhang1-5/+5
In the current kvm version, 'kvm_run' has been included in the 'kvm_vcpu' structure. For historical reasons, many kvm-related function parameters retain the 'kvm_run' and 'kvm_vcpu' parameters at the same time. This patch does a unified cleanup of these remaining redundant parameters. [paulus@ozlabs.org - Fixed places that were missed in book3s_interrupts.S] Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266Thomas Gleixner1-12/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 67 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141333.953658117@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-20powerpc/fsl: Flush branch predictor when entering KVMDiana Craciun1-0/+4
Switching from the guest to host is another place where the speculative accesses can be exploited. Flush the branch predictor when entering KVM. Signed-off-by: Diana Craciun <diana.craciun@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-09KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu structPaul Mackerras1-4/+4
When the 'regs' field was added to struct kvm_vcpu_arch, the code was changed to use several of the fields inside regs (e.g., gpr, lr, etc.) but not the ccr field, because the ccr field in struct pt_regs is 64 bits on 64-bit platforms, but the cr field in kvm_vcpu_arch is only 32 bits. This changes the code to use the regs.ccr field instead of cr, and changes the assembly code on 64-bit platforms to use 64-bit loads and stores instead of 32-bit ones. Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-09-22powerpc/kvm: common sw breakpoint instr across ppcMadhavan Srinivasan1-2/+2
This patch extends the use of illegal instruction as software breakpoint instruction across the ppc platform. Patch extends booke program interrupt code to support software breakpoint. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> [agraf: Fix bookehv] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-09-22KVM: PPC: Book3e: Add AltiVec supportMihai Caraman1-7/+2
Add AltiVec support in KVM for Book3e. FPU support gracefully reuse host infrastructure so follow the same approach for AltiVec. Book3e specification defines shared interrupt numbers for SPE and AltiVec units. Still SPE is present in e200/e500v2 cores while AltiVec is present in e6500 core. So we can currently decide at compile-time which of the SPE or AltiVec units to support exclusively by using CONFIG_SPE_POSSIBLE and CONFIG_PPC_E500MC defines. As Alexander Graf suggested, keep SPE and AltiVec exception handlers distinct to improve code readability. Guests have the privilege to enable AltiVec, so we always need to support AltiVec in KVM and implicitly in host to reflect interrupts and to save/restore the unit context. KVM will be loaded on cores with AltiVec unit only if CONFIG_ALTIVEC is defined. Use this define to guard KVM AltiVec logic. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-28KVM: PPC: Remove 440 supportAlexander Graf1-1/+0
The 440 target hasn't been properly functioning for a few releases and before I was the only one who fixes a very serious bug that indicates to me that nobody used it before either. Furthermore KVM on 440 is slow to the extent of unusable. We don't have to carry along completely unused code. Remove 440 and give us one less thing to worry about. Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-28kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exitBharat Bhushan1-0/+4
SPRN_SPRG is used by debug interrupt handler, so this is required for debug support. Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-28KVM: PPC: Bookehv: Get vcpu's last instruction for emulationMihai Caraman1-28/+9
On book3e, KVM uses load external pid (lwepx) dedicated instruction to read guest last instruction on the exit path. lwepx exceptions (DTLB_MISS, DSI and LRAT), generated by loading a guest address, needs to be handled by KVM. These exceptions are generated in a substituted guest translation context (EPLC[EGS] = 1) from host context (MSR[GS] = 0). Currently, KVM hooks only interrupts generated from guest context (MSR[GS] = 1), doing minimal checks on the fast path to avoid host performance degradation. lwepx exceptions originate from host state (MSR[GS] = 0) which implies additional checks in DO_KVM macro (beside the current MSR[GS] = 1) by looking at the Exception Syndrome Register (ESR[EPID]) and the External PID Load Context Register (EPLC[EGS]). Doing this on each Data TLB miss exception is obvious too intrusive for the host. Read guest last instruction from kvmppc_load_last_inst() by searching for the physical address and kmap it. This address the TODO for TLB eviction and execute-but-not-read entries, and allow us to get rid of lwepx until we are able to handle failures. A simple stress benchmark shows a 1% sys performance degradation compared with previous approach (lwepx without failure handling): time for i in `seq 1 10000`; do /bin/echo > /dev/null; done real 0m 8.85s user 0m 4.34s sys 0m 4.48s vs real 0m 8.84s user 0m 4.36s sys 0m 4.44s A solution to use lwepx and to handle its exceptions in KVM would be to temporary highjack the interrupt vector from host. This imposes additional synchronizations for cores like FSL e6500 that shares host IVOR registers between hardware threads. This optimized solution can be later developed on top of this patch. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-28KVM: PPC: e500mc: Revert "add load inst fixup"Mihai Caraman1-25/+1
The commit 1d628af7 "add load inst fixup" made an attempt to handle failures generated by reading the guest current instruction. The fixup code that was added works by chance hiding the real issue. Load external pid (lwepx) instruction, used by KVM to read guest instructions, is executed in a subsituted guest translation context (EPLC[EGS] = 1). In consequence lwepx's TLB error and data storage interrupts need to be handled by KVM, even though these interrupts are generated from host context (MSR[GS] = 0) where lwepx is executed. Currently, KVM hooks only interrupts generated from guest context (MSR[GS] = 1), doing minimal checks on the fast path to avoid host performance degradation. As a result, the host kernel handles lwepx faults searching the faulting guest data address (loaded in DEAR) in its own Logical Partition ID (LPID) 0 context. In case a host translation is found the execution returns to the lwepx instruction instead of the fixup, the host ending up in an infinite loop. Revert the commit "add load inst fixup". lwepx issue will be addressed in a subsequent patch without needing fixup code. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-20powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlersScott Wood1-2/+9
While bolted handlers (including e6500) do not need to deal with a TLB miss recursively causing another TLB miss, nested TLB misses can still happen with crit/mc/debug exceptions -- so we still need to honor SPRG_TLB_EXFRAME. We don't need to spend time modifying it in the TLB miss fastpath, though -- the special level exception will handle that. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Mihai Caraman <mihai.caraman@freescale.com> Cc: kvm-ppc@vger.kernel.org
2014-03-20powerpc/booke64: Use SPRG7 for VDSOScott Wood1-4/+6
Previously SPRG3 was marked for use by both VDSO and critical interrupts (though critical interrupts were not fully implemented). In commit 8b64a9dfb091f1eca8b7e58da82f1e7d1d5fe0ad ("powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int"), Mihai Caraman made an attempt to resolve this conflict by restoring the VDSO value early in the critical interrupt, but this has some issues: - It's incompatible with EXCEPTION_COMMON which restores r13 from the by-then-overwritten scratch (this cost me some debugging time). - It forces critical exceptions to be a special case handled differently from even machine check and debug level exceptions. - It didn't occur to me that it was possible to make this work at all (by doing a final "ld r13, PACA_EXCRIT+EX_R13(r13)") until after I made (most of) this patch. :-) It might be worth investigating using a load rather than SPRG on return from all exceptions (except TLB misses where the scratch never leaves the SPRG) -- it could save a few cycles. Until then, let's stick with SPRG for all exceptions. Since we cannot use SPRG4-7 for scratch without corrupting the state of a KVM guest, move VDSO to SPRG7 on book3e. Since neither SPRG4-7 nor critical interrupts exist on book3s, SPRG3 is still used for VDSO there. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Mihai Caraman <mihai.caraman@freescale.com> Cc: Anton Blanchard <anton@samba.org> Cc: Paul Mackerras <paulus@samba.org> Cc: kvm-ppc@vger.kernel.org
2014-01-31Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-0/+11
Pull more KVM updates from Paolo Bonzini: "Second batch of KVM updates. Some minor x86 fixes, two s390 guest features that need some handling in the host, and all the PPC changes. The PPC changes include support for little-endian guests and enablement for new POWER8 features" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (45 commits) x86, kvm: correctly access the KVM_CPUID_FEATURES leaf at 0x40000101 x86, kvm: cache the base of the KVM cpuid leaves kvm: x86: move KVM_CAP_HYPERV_TIME outside #ifdef KVM: PPC: Book3S PR: Cope with doorbell interrupts KVM: PPC: Book3S HV: Add software abort codes for transactional memory KVM: PPC: Book3S HV: Add new state for transactional memory powerpc/Kconfig: Make TM select VSX and VMX KVM: PPC: Book3S HV: Basic little-endian guest support KVM: PPC: Book3S HV: Add support for DABRX register on POWER7 KVM: PPC: Book3S HV: Prepare for host using hypervisor doorbells KVM: PPC: Book3S HV: Handle new LPCR bits on POWER8 KVM: PPC: Book3S HV: Handle guest using doorbells for IPIs KVM: PPC: Book3S HV: Consolidate code that checks reason for wake from nap KVM: PPC: Book3S HV: Implement architecture compatibility modes for POWER8 KVM: PPC: Book3S HV: Add handler for HV facility unavailable KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8 KVM: PPC: Book3S HV: Context-switch new POWER8 SPRs KVM: PPC: Book3S HV: Align physical and virtual CPU thread numbers KVM: PPC: Book3S HV: Don't set DABR on POWER8 kvm/ppc: IRQ disabling cleanup ...
2014-01-09KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software stateTiejun Chen1-0/+11
Rather than calling hard_irq_disable() when we're back in C code we can just call RECONCILE_IRQ_STATE to soft disable IRQs while we're already in hard disabled state. This should be functionally equivalent to the code before, but cleaner and faster. Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> [agraf: fix comment, commit message] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-01-08powerpc/booke64: Add LRAT error exception handlerMihai Caraman1-0/+2
LRAT (Logical to Real Address Translation) present in MMU v2 provides hardware translation from a logical page number (LPN) to a real page number (RPN) when tlbwe is executed by a guest or when a page table translation occurs from a guest virtual address. Add LRAT error exception handler to Booke3E 64-bit kernel and the basic KVM handler to avoid build breakage. This is a prerequisite for KVM LRAT support that will follow. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-12-06KVM: PPC: bookehv64: Add support for interrupt handlingMihai Caraman1-8/+130
Add interrupt handling support for 64-bit bookehv hosts. Unify 32 and 64 bit implementations using a common stack layout and a common execution flow starting from kvm_handler_common macro. Update documentation for 64-bit input register values. This patch only address the bolted TLB miss exception handlers version. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-06KVM: PPC: bookehv: Remove GET_VCPU macro from exception handlerMihai Caraman1-5/+2
GET_VCPU define will not be implemented for 64-bit for performance reasons so get rid of it also on 32-bit. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-07-27powerpc/kvm/bookehv: Fix build regressionAlexander Graf1-38/+39
After merging the register type check patches from Ben's tree, the hv enabled booke implementation ceased to compile. This patch fixes things up so everyone's happy again. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-24Merge tag 'kvm-3.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-1/+1
Pull KVM updates from Avi Kivity: "Highlights include - full big real mode emulation on pre-Westmere Intel hosts (can be disabled with emulate_invalid_guest_state=0) - relatively small ppc and s390 updates - PCID/INVPCID support in guests - EOI avoidance; 3.6 guests should perform better on 3.6 hosts on interrupt intensive workloads) - Lockless write faults during live migration - EPT accessed/dirty bits support for new Intel processors" Fix up conflicts in: - Documentation/virtual/kvm/api.txt: Stupid subchapter numbering, added next to each other. - arch/powerpc/kvm/booke_interrupts.S: PPC asm changes clashing with the KVM fixes - arch/s390/include/asm/sigp.h, arch/s390/kvm/sigp.c: Duplicated commits through the kvm tree and the s390 tree, with subsequent edits in the KVM tree. * tag 'kvm-3.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (93 commits) KVM: fix race with level interrupts x86, hyper: fix build with !CONFIG_KVM_GUEST Revert "apic: fix kvm build on UP without IOAPIC" KVM guest: switch to apic_set_eoi_write, apic_write apic: add apic_set_eoi_write for PV use KVM: VMX: Implement PCID/INVPCID for guests with EPT KVM: Add x86_hyper_kvm to complete detect_hypervisor_platform check KVM: PPC: Critical interrupt emulation support KVM: PPC: e500mc: Fix tlbilx emulation for 64-bit guests KVM: PPC64: booke: Set interrupt computation mode for 64-bit host KVM: PPC: bookehv: Add ESR flag to Data Storage Interrupt KVM: PPC: bookehv64: Add support for std/ld emulation. booke: Added crit/mc exception handler for e500v2 booke/bookehv: Add host crit-watchdog exception support KVM: MMU: document mmu-lock and fast page fault KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint KVM: MMU: trace fast page fault KVM: MMU: fast path of handling guest page fault KVM: MMU: introduce SPTE_MMU_WRITEABLE bit KVM: MMU: fold tlb flush judgement into mmu_spte_update ...
2012-07-11KVM: PPC: bookehv: Add ESR flag to Data Storage InterruptMihai Caraman1-1/+1
ESR register is required by Data Storage Interrupt handling code. Add the specific flag to the interrupt handler. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-07-11powerpc: Use CURRENT_THREAD_INFO instead of open coded assemblyStuart Yoder1-5/+1
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-10powerpc: Merge VCPU_GPRMichael Neuling1-1/+0
Merge the defines of VCPU_GPR from different places. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-10powerpc: Fix usage of register macros getting ready for %r0 changeMichael Neuling1-111/+111
Anything that uses a constructed instruction (ie. from ppc-opcode.h), need to use the new R0 macro, as %r0 is not going to work. Also convert usages of macros where we are just determining an offset (usually for a load/store), like: std r14,STK_REG(r14)(r1) Can't use STK_REG(r14) as %r14 doesn't work in the STK_REG macro since it's just calculating an offset. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-06KVM: PPC: bookehv: Fix r8/r13 storing in level exception handlerMihai Caraman1-1/+1
Guest r8 register is held in the scratch register and stored correctly, so remove the instruction that clobbers it. Guest r13 was missing from vcpu, store it there. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-06KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fieldsMihai Caraman1-8/+8
Interrupt code used PPC_LL/PPC_STL macros to load/store some of u32 fields which led to memory overflow on 64-bit. Use lwz/stw instead. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-06KVM: PPC: booke(hv): Fix save/restore of guest accessible SPRGs.Varun Sethi1-8/+8
For Guest accessible SPRGs 4-7, save/restore must be handled differently for 64bit and non-64 bit case. Use the PPC_STD/PPC_LD macros for saving/restoring to/from these registers. Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-06KVM: PPC: bookehv: Use a Macro for saving/restoring guest registers to/from ↵Varun Sethi1-20/+4
their 64 bit copies. Introduced PPC_STD/PPC_LD macros for saving/restoring guest registers to/from their 64 bit copies. Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-04-08Restore guest CR after exit timing calculationBharat Bhushan1-3/+8
No instruction which can change Condition Register (CR) should be executed after Guest CR is loaded. So the guest CR is restored after the Exit Timing in lightweight_exit executes cmpw, which can clobber CR. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: Save/Restore CR over vcpu_runAlexander Graf1-1/+7
On PPC, CR2-CR4 are nonvolatile, thus have to be saved across function calls. We didn't respect that for any architecture until Paul spotted it in his patch for Book3S-HV. This patch saves/restores CR for all KVM capable PPC hosts. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: bookehv: remove unused codeAlexander Graf1-7/+0
There was some unused code in the exit code path that must have been a leftover from earlier iterations. While it did no harm, it's superfluous and thus should be removed. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: bookehv: disable MAS register updates earlyAlexander Graf1-4/+6
We need to make sure that no MAS updates happen automatically while we have the guest MAS registers loaded. So move the disabling code a bit higher up so that it covers the full time we have guest values in MAS registers. The race this patch fixes should never occur, but it makes the code a bit more logical to do it this way around. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: bookehv: remove SET_VCPUAlexander Graf1-8/+0
The SET_VCPU macro is a leftover from times when the vcpu struct wasn't stored in the thread on vcpu_load/put. It's not needed anymore. Remove it. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: bookehv: remove negation for CONFIG_64BITAlexander Graf1-12/+12
Instead if doing #ifndef CONFIG_64BIT ... #else ... #endif we should rather do #ifdef CONFIG_64BIT ... #else ... #endif which is a lot easier to read. Change the bookehv implementation to stick with this rule. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: bookehv: fix exit timingAlexander Graf1-4/+4
When using exit timing stats, we clobber r9 in the NEED_EMU case, so better move that part down a few lines and fix it that way. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: e500mc: add load inst fixupAlexander Graf1-1/+29
There's always a chance we're unable to read a guest instruction. The guest could have its TLB mapped execute-, but not readable, something odd happens and our TLB gets flushed. So it's a good idea to be prepared for that case and have a fallback that allows us to fix things up in that case. Add fixup code that keeps guest code from potentially crashing our host kernel. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: e500mc: Move r1/r2 restoration very earlyAlexander Graf1-6/+6
If we hit any exception whatsoever in the restore path and r1/r2 aren't the host registers, we don't get a working oops. So it's always a good idea to restore them as early as possible. This time, it actually has practical reasons to do so too, since we need to have the host page fault handler fix up our guest instruction read code. And for that to work we need r1/r2 restored. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08KVM: PPC: booke: category E.HV (GS-mode) supportScott Wood1-0/+587
Chips such as e500mc that implement category E.HV in Power ISA 2.06 provide hardware virtualization features, including a new MSR mode for guest state. The guest OS can perform many operations without trapping into the hypervisor, including transitions to and from guest userspace. Since we can use SRR1[GS] to reliably tell whether an exception came from guest state, instead of messing around with IVPR, we use DO_KVM similarly to book3s. Current issues include: - Machine checks from guest state are not routed to the host handler. - The guest can cause a host oops by executing an emulated instruction in a page that lacks read permission. Existing e500/4xx support has the same problem. Includes work by Ashish Kalra <Ashish.Kalra@freescale.com>, Varun Sethi <Varun.Sethi@freescale.com>, and Liu Yu <yu.liu@freescale.com>. Signed-off-by: Scott Wood <scottwood@freescale.com> [agraf: remove pt_regs usage] Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
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