kernel/arch/powerpc/kvm/Makefile, branch linux-4.3.y

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2014-08-07T18:35:30Z

Pull second round of KVM changes from Paolo Bonzini: "Here are the PPC and ARM changes for KVM, which I separated because they had small conflicts (respectively within KVM documentation, and with 3.16-rc changes). Since they were all within the subsystem, I took care of them. Stephen Rothwell reported some snags in PPC builds, but they are all fixed now; the latest linux-next report was clean. New features for ARM include: - KVM VGIC v2 emulation on GICv3 hardware - Big-Endian support for arm/arm64 (guest and host) - Debug Architecture support for arm64 (arm32 is on Christoffer's todo list) And for PPC: - Book3S: Good number of LE host fixes, enable HV on LE - Book3S HV: Add in-guest debug support This release drops support for KVM on the PPC440. As a result, the PPC merge removes more lines than it adds. :) I also included an x86 change, since Davidlohr tied it to an independent bug report and the reporter quickly provided a Tested-by; there was no reason to wait for -rc2" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (122 commits) KVM: Move more code under CONFIG_HAVE_KVM_IRQFD KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use KVM: nVMX: Fix nested vmexit ack intr before load vmcs01 KVM: PPC: Enable IRQFD support for the XICS interrupt controller KVM: Give IRQFD its own separate enabling Kconfig option KVM: Move irq notifier implementation into eventfd.c KVM: Move all accesses to kvm::irq_routing into irqchip.c KVM: irqchip: Provide and use accessors for irq routing table KVM: Don't keep reference to irq routing table in irqfd struct KVM: PPC: drop duplicate tracepoint arm64: KVM: fix 64bit CP15 VM access for 32bit guests KVM: arm64: GICv3: mandate page-aligned GICV region arm64: KVM: GICv3: move system register access to msr_s/mrs_s KVM: PPC: PR: Handle FSCR feature deselects KVM: PPC: HV: Remove generic instruction emulation KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr KVM: PPC: Remove DCR handling KVM: PPC: Expose helper functions for data/inst faults KVM: PPC: Separate loadstore emulation from priv emulation KVM: PPC: Handle magic page in kvmppc_ld/st ...

PPC, KVM, CMA: use general CMA reserved area management framework

2014-08-07T01:01:16Z

Now, we have general CMA reserved area management framework, so use it for future maintainabilty. There is no functional change. Signed-off-by: Joonsoo Kim Acked-by: Michal Nazarewicz Acked-by: Paolo Bonzini Tested-by: Aneesh Kumar K.V Cc: Alexander Graf Cc: Aneesh Kumar K.V Cc: Gleb Natapov Acked-by: Marek Szyprowski Tested-by: Marek Szyprowski Cc: Minchan Kim Cc: Zhang Yanfei Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

KVM: PPC: HV: Remove generic instruction emulation

2014-07-30T13:25:49Z

Now that we have properly split load/store instruction emulation and generic instruction emulation, we can move the generic one from kvm.ko to kvm-pr.ko on book3s_64. This reduces the attack surface and amount of code loaded on HV KVM kernels. Signed-off-by: Alexander Graf

KVM: PPC: Separate loadstore emulation from priv emulation

2014-07-28T16:30:10Z

Today the instruction emulator can get called via 2 separate code paths. It can either be called by MMIO emulation detection code or by privileged instruction traps. This is bad, as both code paths prepare the environment differently. For MMIO emulation we already know the virtual address we faulted on, so instructions there don't have to actually fetch that information. Split out the two separate use cases into separate files. Signed-off-by: Alexander Graf

KVM: PPC: Remove 440 support

2014-07-28T13:23:15Z

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

kvm: powerpc: book3s: Support building HV and PR KVM as module

2013-10-17T13:45:35Z

Signed-off-by: Aneesh Kumar K.V [agraf: squash in compile fix] Signed-off-by: Alexander Graf

kvm: powerpc: book3s: Add a new config variable CONFIG_KVM_BOOK3S_HV_POSSIBLE

2013-10-17T13:18:28Z

This help ups to select the relevant code in the kernel code when we later move HV and PR bits as seperate modules. The patch also makes the config options for PR KVM selectable Signed-off-by: Aneesh Kumar K.V Signed-off-by: Alexander Graf

kvm: powerpc: book3s: move book3s_64_vio_hv.c into the main kernel binary

2013-10-17T13:17:25Z

Since the code in book3s_64_vio_hv.c is called from real mode with HV KVM, and therefore has to be built into the main kernel binary, this makes it always built-in rather than part of the KVM module. It gets called from the KVM module by PR KVM, so this adds an EXPORT_SYMBOL_GPL(). Signed-off-by: Paul Mackerras Signed-off-by: Aneesh Kumar K.V Signed-off-by: Alexander Graf

powerpc/kvm: Contiguous memory allocator based hash page table allocation

2013-07-08T14:19:58Z

Powerpc architecture uses a hash based page table mechanism for mapping virtual addresses to physical address. The architecture require this hash page table to be physically contiguous. With KVM on Powerpc currently we use early reservation mechanism for allocating guest hash page table. This implies that we need to reserve a big memory region to ensure we can create large number of guest simultaneously with KVM on Power. Another disadvantage is that the reserved memory is not available to rest of the subsystems and and that implies we limit the total available memory in the host. This patch series switch the guest hash page table allocation to use contiguous memory allocator. Signed-off-by: Aneesh Kumar K.V Acked-by: Paul Mackerras Signed-off-by: Alexander Graf

KVM: get rid of $(addprefix ../../../virt/kvm/, ...) in Makefiles

2013-05-19T12:14:00Z

As requested by the KVM maintainers, remove the addprefix used to refer to the main KVM code from the arch code, and replace it with a KVM variable that does the same thing. Tested-by: Christian Borntraeger Cc: Paolo Bonzini Cc: Gleb Natapov Cc: Christoffer Dall Acked-by: Xiantao Zhang Cc: Tony Luck Cc: Fenghua Yu Cc: Alexander Graf Cc: Benjamin Herrenschmidt Cc: Christian Borntraeger Cc: Cornelia Huck Signed-off-by: Marc Zyngier Signed-off-by: Gleb Natapov