On 01/10/2018 23:25, Sean Christopherson wrote: > The immediate goal of this series is to fix a VMWRITE warning that > occurs on older hardware due to accessing secondary exec controls > when the field is not supported[1]. While inspecting the related > code, I found that the offending commit that introduced the bug also > unintentionally changed nested guest behavior when the FlexPriority > module param is disabled. KVM's handling of the FlexPriority param > is so inconsistent and unintuitive that removing the param altogether > seemed to be the simplest way to revert back to the previous behavior > while keeping its bugfix intact. > > [1] https://bugzilla.redhat.com/show_bug.cgi?id=1632426 > > Sean Christopherson (2): > KVM: VMX: remove kvm-intel.flexpriority module parameter > KVM: VMX: check for existence of secondary exec controls before > accessing > > .../admin-guide/kernel-parameters.txt | 4 --- > arch/x86/kvm/vmx.c | 26 ++++++------------- > 2 files changed, 8 insertions(+), 22 deletions(-) > Queued patch 2, thanks. Paolo