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SubjectRe: [GIT PULL] KVM changes for 5.2 merge window
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On 17/05/19 08:22, Nathan Chancellor wrote:
> 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>.

Ouch, thanks. :/ I'll send a new pull request as soon as I finish
testing the change you suggested.

Paolo

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