Re: FAILED: patch "[PATCH] KVM: x86: use CPUID to locate host page table reserved bits" failed to apply to 5.4-stable tree

[Sasha Levin <sashal@kernel.org>]

On Sun, Feb 09, 2020 at 01:31:10PM +0100, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 5.4-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 7adacf5eb2d2048045d9fd8fdab861fd9e7e2e96 Mon Sep 17 00:00:00 2001
>From: Paolo Bonzini <pbonzini@redhat.com>
>Date: Wed, 4 Dec 2019 15:50:27 +0100
>Subject: [PATCH] KVM: x86: use CPUID to locate host page table reserved bits
>
>The comment in kvm_get_shadow_phys_bits refers to MKTME, but the same is actually
>true of SME and SEV.  Just use CPUID[0x8000_0008].EAX[7:0] unconditionally if
>available, it is simplest and works even if memory is not encrypted.
>
>Cc: stable@vger.kernel.org
>Reported-by: Tom Lendacky <thomas.lendacky@amd.com>
>Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

For 5.4 it was just due to a file rename, I've fixed it and queued it
up. 4.19 still needs a backport.

-- 
Thanks,
Sasha