KVM fixes for 6.7-rcN:

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- When checking if a _running_ vCPU is "in-kernel", i.e. running at CPL0,
    get the CPL directly instead of relying on preempted_in_kernel, which
    is valid if and only if the vCPU was preempted, i.e. NOT running.
 
  - Set .owner for various KVM file_operations so that files refcount the
    KVM module until KVM is done executing _all_ code, including the last
    few instructions of kvm_put_kvm().  And then revert the misguided
    attempt to rely on "struct kvm" refcounts to pin KVM-the-module.
 
  - Fix a benign "return void" that was recently introduced.
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Merge tag 'kvm-x86-fixes-6.7-rcN' of https://github.com/kvm-x86/linux into kvm-master

KVM fixes for 6.7-rcN:

 - When checking if a _running_ vCPU is "in-kernel", i.e. running at CPL0,
   get the CPL directly instead of relying on preempted_in_kernel, which
   is valid if and only if the vCPU was preempted, i.e. NOT running.

 - Set .owner for various KVM file_operations so that files refcount the
   KVM module until KVM is done executing _all_ code, including the last
   few instructions of kvm_put_kvm().  And then revert the misguided
   attempt to rely on "struct kvm" refcounts to pin KVM-the-module.

 - Fix a benign "return void" that was recently introduced.

...

This commit is contained in:

Paolo Bonzini 2023-12-08 13:13:45 -05:00

parent aa0ae3df80 ef8d89033c

commit 6254eebad4

3 changed files with 15 additions and 13 deletions

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1

arch/x86/kvm/debugfs.c

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9

arch/x86/kvm/x86.c

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18

virt/kvm/kvm_main.c

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