Re: FAILED: patch "[PATCH] KVM: VMX: Add non-canonical check on writes to RTIT address" failed to apply to 4.19-stable tree

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Feb 20, 2020 at 09:16:51AM +0000, Ben Hutchings wrote:
> On Sun, 2020-02-09 at 15:12 -0500, Sasha Levin wrote:
> > On Sun, Feb 09, 2020 at 01:31:58PM +0100, gregkh@linuxfoundation.org wrote:
> > > The patch below does not apply to the 4.19-stable tree.
> > > If someone wants it applied there, or to any other stable or longterm
> > > tree, then please email the backport, including the original git commit
> > > id to <stable@vger.kernel.org>.
> > > 
> > > thanks,
> > > 
> > > greg k-h
> > > 
> > > ------------------ original commit in Linus's tree ------------------
> > > 
> > > From fe6ed369fca98e99df55c932b85782a5687526b5 Mon Sep 17 00:00:00 2001
> > > From: Sean Christopherson <sean.j.christopherson@intel.com>
> > > Date: Tue, 10 Dec 2019 15:24:32 -0800
> > > Subject: [PATCH] KVM: VMX: Add non-canonical check on writes to RTIT address
> > > MSRs
> > > 
> > > Reject writes to RTIT address MSRs if the data being written is a
> > > non-canonical address as the MSRs are subject to canonical checks, e.g.
> > > KVM will trigger an unchecked #GP when loading the values to hardware
> > > during pt_guest_enter().
> > > 
> > > Cc: stable@vger.kernel.org
> > > Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> > > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> > 
> > File/code movement. Cleaned up and queued for 4.19-4.4.
> 
> I don't know what happened here, but you've ended up adding the
> entirety of arch/x86/kvm/vmx/vmx.c on all those branches rather than
> applying the change to the right file.

Oh wow that's wrong :(

I'll go revert this, as it's not actually doing anything.

Thanks for catching this.

greg k-h