On 2022/1/13 19:56, Laibin Qiu wrote:
From: Sean Christopherson <sean.j.christopherson@intel.com>
mainline inclusion from mainline-v5.8-rc1 commit 6129ed877d409037b79866327102c9dc59a302fe category: feature bugzilla: CVE: NA
from linux-4.19.130 commit be0bcec4a5ba3fe931262ef0a3a7f119d9745958 Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
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Set the mmio_value to '0' instead of simply clearing the present bit to squash a benign warning in kvm_mmu_set_mmio_spte_mask() that complains about the mmio_value overlapping the lower GFN mask on systems with 52 bits of PA space.
Opportunistically clean up the code and comments.
Cc: stable@vger.kernel.org Fixes: d43e2675e96fc ("KVM: x86: only do L1TF workaround on affected processors") Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200527084909.23492-1-sean.j.christopherson@intel.com> Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> #openEuler_contributor Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>