linux-kernel - [GIT PULL] KVM: x86: Fixes for 6.7-rcN

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Message-ID: <20231208020734.1705867-1-seanjc@google.com>
Date:   Thu,  7 Dec 2023 18:07:34 -0800
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sean Christopherson <seanjc@...gle.com>
Subject: [GIT PULL] KVM: x86: Fixes for 6.7-rcN

Please pull a handful of fixes for 6.7-rcN (hopefully N=5).  These have all
been in -next for a week or so.

The following changes since commit ffc253263a1375a65fa6c9f62a893e9767fbebfa:

  Linux 6.6 (2023-10-29 16:31:08 -1000)

are available in the Git repository at:

  https://github.com/kvm-x86/linux.git tags/kvm-x86-fixes-6.7-rcN

for you to fetch changes up to ef8d89033c3f1f6a64757f066b2c17e76d1189f8:

  KVM: x86: Remove 'return void' expression for 'void function' (2023-12-01 08:14:27 -0800)

----------------------------------------------------------------
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.

----------------------------------------------------------------
Like Xu (2):
      KVM: x86: Get CPL directly when checking if loaded vCPU is in kernel mode
      KVM: x86: Remove 'return void' expression for 'void function'

Sean Christopherson (2):
      KVM: Set file_operations.owner appropriately for all such structures
      Revert "KVM: Prevent module exit until all VMs are freed"

 arch/x86/kvm/debugfs.c |  1 +
 arch/x86/kvm/x86.c     |  9 ++++++---
 virt/kvm/kvm_main.c    | 18 ++++++++----------
 3 files changed, 15 insertions(+), 13 deletions(-)