• Linus Torvalds's avatar
    Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · fd7e9a88
    Linus Torvalds authored
    Pull KVM updates from Paolo Bonzini:
     "4.11 is going to be a relatively large release for KVM, with a little
      over 200 commits and noteworthy changes for most architectures.
    
      ARM:
       - GICv3 save/restore
       - cache flushing fixes
       - working MSI injection for GICv3 ITS
       - physical timer emulation
    
      MIPS:
       - various improvements under the hood
       - support for SMP guests
       - a large rewrite of MMU emulation. KVM MIPS can now use MMU
         notifiers to support copy-on-write, KSM, idle page tracking,
         swapping, ballooning and everything else. KVM_CAP_READONLY_MEM is
         also supported, so that writes to some memory regions can be
         treated as MMIO. The new MMU also paves the way for hardware
         virtualization support.
    
      PPC:
       - support for POWER9 using the radix-tree MMU for host and guest
       - resizable hashed page table
       - bugfixes.
    
      s390:
       - expose more features to the guest
       - more SIMD extensions
       - instruction execution protection
       - ESOP2
    
      x86:
       - improved hashing in the MMU
       - faster PageLRU tracking for Intel CPUs without EPT A/D bits
       - some refactoring of nested VMX entry/exit code, preparing for live
         migration support of nested hypervisors
       - expose yet another AVX512 CPUID bit
       - host-to-guest PTP support
       - refactoring of interrupt injection, with some optimizations thrown
         in and some duct tape removed.
       - remove lazy FPU handling
       - optimizations of user-mode exits
       - optimizations of vcpu_is_preempted() for KVM guests
    
      generic:
       - alternative signaling mechanism that doesn't pound on
         tsk->sighand->siglock"
    
    * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (195 commits)
      x86/kvm: Provide optimized version of vcpu_is_preempted() for x86-64
      x86/paravirt: Change vcp_is_preempted() arg type to long
      KVM: VMX: use correct vmcs_read/write for guest segment selector/base
      x86/kvm/vmx: Defer TR reload after VM exit
      x86/asm/64: Drop __cacheline_aligned from struct x86_hw_tss
      x86/kvm/vmx: Simplify segment_base()
      x86/kvm/vmx: Get rid of segment_base() on 64-bit kernels
      x86/kvm/vmx: Don't fetch the TSS base from the GDT
      x86/asm: Define the kernel TSS limit in a macro
      kvm: fix page struct leak in handle_vmon
      KVM: PPC: Book3S HV: Disable HPT resizing on POWER9 for now
      KVM: Return an error code only as a constant in kvm_get_dirty_log()
      KVM: Return an error code only as a constant in kvm_get_dirty_log_protect()
      KVM: Return directly after a failed copy_from_user() in kvm_vm_compat_ioctl()
      KVM: x86: remove code for lazy FPU handling
      KVM: race-free exit from KVM_RUN without POSIX signals
      KVM: PPC: Book3S HV: Turn "KVM guest htab" message into a debug message
      KVM: PPC: Book3S PR: Ratelimit copy data failure error messages
      KVM: Support vCPU-based gfn->hva cache
      KVM: use separate generations for each address space
      ...
    fd7e9a88
hyperv.c 32.4 KB