From: Scott Wood Date: Wed, 6 Mar 2013 16:02:49 +0000 (+0000) Subject: kvm/ppc/e500: eliminate tlb_refs X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~32^2~88^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47bf379742bf1baad9624e203912b72c3fa9c80a;p=pandora-kernel.git kvm/ppc/e500: eliminate tlb_refs Commit 523f0e5421c12610527c620b983b443f329e3a32 ("KVM: PPC: E500: Explicitly mark shadow maps invalid") began using E500_TLB_VALID for guest TLB1 entries, and skipping invalidations if it's not set. However, when E500_TLB_VALID was set for such entries, it was on a fake local ref, and so the invalidations never happen. gtlb_privs is documented as being only for guest TLB0, though we already violate that with E500_TLB_BITMAP. Now that we have MMU notifiers, and thus don't need to actually retain a reference to the mapped pages, get rid of tlb_refs, and use gtlb_privs for E500_TLB_VALID in TLB1. Since we can have more than one host TLB entry for a given tlbe_ref, be careful not to clear existing flags that are relevant to other host TLB entries when preparing a new host TLB entry. Signed-off-by: Scott Wood Signed-off-by: Alexander Graf --- Reading git-diff-tree failed