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SubjectRe: [GIT PULL] KVM changes for 5.2 merge window
On Fri, May 17, 2019 at 05:59:36AM +0200, Paolo Bonzini wrote:
> Linus,
>
> The following changes since commit 7a223e06b1a411cef6c4cd7a9b9a33c8d225b10e:
>
> KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing (2019-04-16 15:38:08 +0200)
>
> are available in the git repository at:
>
> https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
>
> for you to fetch changes up to dd53f6102c30a774e0db8e55d49017a38060f6f6:
>
> Merge tag 'kvmarm-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD (2019-05-15 23:41:43 +0200)
>
> ----------------------------------------------------------------
>
> * ARM: support for SVE and Pointer Authentication in guests, PMU improvements
>
> * POWER: support for direct access to the POWER9 XIVE interrupt controller,
> memory and performance optimizations.
>
> * x86: support for accessing memory not backed by struct page, fixes and refactoring
>
> * Generic: dirty page tracking improvements
>
> ----------------------------------------------------------------
> Aaron Lewis (5):
> tests: kvm: Add tests to .gitignore
> tests: kvm: Add tests for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_CPU_ID
> KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state
> tests: kvm: Add tests for KVM_SET_NESTED_STATE
> kvm: nVMX: Set nested_run_pending in vmx_set_nested_state after checks complete
>
> Alexey Kardashevskiy (3):
> KVM: PPC: Book3S HV: Fix lockdep warning when entering the guest
> KVM: PPC: Book3S HV: Avoid lockdep debugging in TCE realmode handlers
> KVM: PPC: Book3S: Allocate guest TCEs on demand too
>
> Amit Daniel Kachhap (3):
> KVM: arm64: Add a vcpu flag to control ptrauth for guest
> KVM: arm64: Add userspace flag to enable pointer authentication
> KVM: arm64: Add capability to advertise ptrauth for guest
>
> Andrew Murray (9):
> arm64: arm_pmu: Remove unnecessary isb instruction
> arm64: KVM: Encapsulate kvm_cpu_context in kvm_host_data
> arm64: KVM: Add accessors to track guest/host only counters
> arm64: arm_pmu: Add !VHE support for exclude_host/exclude_guest attributes
> arm64: KVM: Enable !VHE support for :G/:H perf event modifiers
> arm64: KVM: Enable VHE support for :G/:H perf event modifiers
> arm64: KVM: Avoid isb's by using direct pmxevtyper sysreg
> arm64: docs: Document perf event attributes
> arm64: KVM: Fix perf cycle counter support for VHE
>
> Borislav Petkov (1):
> x86/kvm: Implement HWCR support
>
> Christian Borntraeger (9):
> KVM: s390: add vector enhancements facility 2 to cpumodel
> KVM: s390: add vector BCD enhancements facility to cpumodel
> KVM: s390: add MSA9 to cpumodel
> KVM: s390: provide query function for instructions returning 32 byte
> KVM: s390: add enhanced sort facilty to cpu model
> KVM: s390: add deflate conversion facilty to cpu model
> KVM: s390: enable MSA9 keywrapping functions depending on cpu model
> KVM: polling: add architecture backend to disable polling
> KVM: s390: provide kvm_arch_no_poll function
>
> Colin Ian King (1):
> KVM: PPC: Book3S HV: XIVE: Fix spelling mistake "acessing" -> "accessing"
>
> Cédric Le Goater (18):
> powerpc/xive: add OPAL extensions for the XIVE native exploitation support
> KVM: PPC: Book3S HV: Add a new KVM device for the XIVE native exploitation mode
> KVM: PPC: Book3S HV: XIVE: Introduce a new capability KVM_CAP_PPC_IRQ_XIVE
> KVM: PPC: Book3S HV: XIVE: add a control to initialize a source
> KVM: PPC: Book3S HV: XIVE: Add a control to configure a source
> KVM: PPC: Book3S HV: XIVE: Add controls for the EQ configuration
> KVM: PPC: Book3S HV: XIVE: Add a global reset control
> KVM: PPC: Book3S HV: XIVE: Add a control to sync the sources
> KVM: PPC: Book3S HV: XIVE: Add a control to dirty the XIVE EQ pages
> KVM: PPC: Book3S HV: XIVE: Add get/set accessors for the VP XIVE state
> KVM: Introduce a 'mmap' method for KVM devices
> KVM: PPC: Book3S HV: XIVE: Add a TIMA mapping
> KVM: PPC: Book3S HV: XIVE: Add a mapping for the source ESB pages
> KVM: PPC: Book3S HV: XIVE: Add passthrough support
> KVM: PPC: Book3S HV: XIVE: Activate XIVE exploitation mode
> KVM: Introduce a 'release' method for KVM devices
> KVM: PPC: Book3S HV: XIVE: Replace the 'destroy' method by a 'release' method
> KVM: PPC: Book3S: Remove useless checks in 'release' method of KVM device
>
> Dan Carpenter (1):
> KVM: vmx: clean up some debug output
>
> Dave Martin (41):
> KVM: Documentation: Document arm64 core registers in detail
> arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush
> KVM: arm64: Delete orphaned declaration for __fpsimd_enabled()
> KVM: arm64: Refactor kvm_arm_num_regs() for easier maintenance
> KVM: arm64: Add missing #includes to kvm_host.h
> arm64/sve: Clarify role of the VQ map maintenance functions
> arm64/sve: Check SVE virtualisability
> arm64/sve: Enable SVE state tracking for non-task contexts
> KVM: arm64: Add a vcpu flag to control SVE visibility for the guest
> KVM: arm64: Propagate vcpu into read_id_reg()
> KVM: arm64: Support runtime sysreg visibility filtering
> KVM: arm64/sve: System register context switch and access support
> KVM: arm64/sve: Context switch the SVE registers
> KVM: Allow 2048-bit register access via ioctl interface
> KVM: arm64: Add missing #include of <linux/string.h> in guest.c
> KVM: arm64: Factor out core register ID enumeration
> KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus
> KVM: arm64/sve: Add SVE support to register access ioctl interface
> KVM: arm64: Enumerate SVE register indices for KVM_GET_REG_LIST
> arm64/sve: In-kernel vector length availability query interface
> KVM: arm/arm64: Add hook for arch-specific KVM initialisation
> KVM: arm/arm64: Add KVM_ARM_VCPU_FINALIZE ioctl
> KVM: arm64/sve: Add pseudo-register for the guest's vector lengths
> KVM: arm64/sve: Allow userspace to enable SVE for vcpus
> KVM: arm64: Add a capability to advertise SVE support
> KVM: Document errors for KVM_GET_ONE_REG and KVM_SET_ONE_REG
> KVM: arm64/sve: Document KVM API extensions for SVE
> arm64/sve: Clarify vq map semantics
> KVM: arm/arm64: Demote kvm_arm_init_arch_resources() to just set up SVE
> KVM: arm: Make vcpu finalization stubs into inline functions
> KVM: arm64/sve: sys_regs: Demote redundant vcpu_has_sve() checks to WARNs
> KVM: arm64/sve: Clean up UAPI register ID definitions
> KVM: arm64/sve: Miscellaneous tidyups in guest.c
> KVM: arm64/sve: Make register ioctl access errors more consistent
> KVM: arm64/sve: WARN when avoiding divide-by-zero in sve_reg_to_region()
> KVM: arm64/sve: Simplify KVM_REG_ARM64_SVE_VLS array sizing
> KVM: arm64/sve: Explain validity checks in set_sve_vls()
> KVM: arm/arm64: Clean up vcpu finalization function parameter naming
> KVM: Clarify capability requirements for KVM_ARM_VCPU_FINALIZE
> KVM: Clarify KVM_{SET,GET}_ONE_REG error code documentation
> KVM: arm64: Clarify access behaviour for out-of-range SVE register slice IDs
>
> Eric Farman (1):
> KVM: s390: Fix potential spectre warnings
>
> Filippo Sironi (1):
> X86/KVM: Handle PFNs outside of kernel reach when touching GPTEs
>
> Jiang Biao (1):
> kvm_main: fix some comments
>
> Kai Huang (1):
> kvm: x86: Fix L1TF mitigation for shadow MMU
>
> KarimAllah Ahmed (13):
> X86/nVMX: handle_vmon: Read 4 bytes from guest memory
> X86/nVMX: Update the PML table without mapping and unmapping the page
> KVM: Introduce a new guest mapping API

This commit causes a build failure on arm64 defconfig:

$ make -j$(nproc) ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- O=out defconfig Image.gz
...
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c: In function '__kvm_map_gfn':
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1763:9: error: implicit declaration of function 'memremap'; did you mean 'memset_p'? [-Werror=implicit-function-declaration]
hva = memremap(pfn_to_hpa(pfn), PAGE_SIZE, MEMREMAP_WB);
^~~~~~~~
memset_p
CC kernel/cgroup/rstat.o
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1763:46: error: 'MEMREMAP_WB' undeclared (first use in this function)
hva = memremap(pfn_to_hpa(pfn), PAGE_SIZE, MEMREMAP_WB);
^~~~~~~~~~~
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1763:46: note: each undeclared identifier is reported only once for each function it appears in
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_vcpu_unmap':
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1795:3: error: implicit declaration of function 'memunmap'; did you mean 'vm_munmap'? [-Werror=implicit-function-declaration]
memunmap(map->hva);
^~~~~~~~
vm_munmap

It seems that the <asm/io.h> include should probably be converted into
<linux/io.h>.

Cheers,
Nathan

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