linux-kernel - [PATCH 0/5] x86/kvm: Refactor KVM PV features teardown and fix restore from hibernation

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Date:   Wed, 14 Apr 2021 14:35:39 +0200
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>, x86@...nel.org,
        Lenny Szubowicz <lszubowi@...hat.com>,
        Mohamed Aboubakr <mabouba@...zon.com>,
        Xiaoyi Chen <cxiaoyi@...zon.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 0/5] x86/kvm: Refactor KVM PV features teardown and fix restore from hibernation

This series is a successor of Lenny's "[PATCH] x86/kvmclock: Stop kvmclocks
for hibernate restore". While reviewing his patch I realized that PV
features teardown we have is a bit messy: it is scattered across kvm.c
and kvmclock.c and not all features are being shutdown an all paths.
This series unifies all teardown paths in kvm.c and makes sure all
features are disabled when needed.

Vitaly Kuznetsov (5):
  x86/kvm: Fix pr_info() for async PF setup/teardown
  x86/kvm: Teardown PV features on boot CPU as well
  x86/kvm: Disable kvmclock on all CPUs on shutdown
  x86/kvm: Disable all PV features on crash
  x86/kvm: Unify kvm_pv_guest_cpu_reboot() with kvm_guest_cpu_offline()

 arch/x86/include/asm/kvm_para.h |  10 +--
 arch/x86/kernel/kvm.c           | 113 +++++++++++++++++++++-----------
 arch/x86/kernel/kvmclock.c      |  26 +-------
 3 files changed, 78 insertions(+), 71 deletions(-)

-- 
2.30.2