On Tue, Feb 6, 2024 at 9:52 PM Sean Christopherson <seanjc@xxxxxxxxxx> wrote: > > On Sat, Dec 30, 2023, Michael Roth wrote: > > In some cases the full 64-bit error code for the KVM page fault will be > > needed to determine things like whether or not a fault was for a private > > or shared guest page, so update related code to accept the full 64-bit > > value so it can be plumbed all the way through to where it is needed. > > > > The accessors of fault->error_code are changed as follows: > > > > - FNAME(page_fault): change to explicitly use lower_32_bits() since that > > is no longer done in kvm_mmu_page_fault() > > - kvm_mmu_page_fault(): explicit mask with PFERR_RSVD_MASK, > > PFERR_NESTED_GUEST_PAGE > > - mmutrace: changed u32 -> u64 > > > > Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> > > Link: https://lore.kernel.org/kvm/20230612042559.375660-1-michael.roth@xxxxxxx/T/#mbd0b20c9a2cf50319d5d2a27b63f73c772112076 > > [mdr: drop references/changes to code not in current gmem tree, update > > commit message] > > Signed-off-by: Michael Roth <michael.roth@xxxxxxx> > > I assume Isaku is the original author? If so, that's missing from this patch. The root of this patch seem to be in a reply to "KVM: x86: Add 'fault_is_private' x86 op" (https://patchew.org/linux/20230220183847.59159-1-michael.roth@xxxxxxx/20230220183847.59159-2-michael.roth@xxxxxxx/), so yes. Paolo
