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