FAILED: patch "[PATCH] MIPS: KVM: Fix gfn range check in kseg0 tlb faults" failed to apply to 4.7-stable tree
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[email protected]
maintainerThe patch below does not apply to the 4.7-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 <[email protected]>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
Quoted 1 line
From
0741f52d1b980dbeb290afe67d88fc2928edd8abMon Sep 17 00:00:00 2001
From: James Hogan <[email protected]>
Date: Thu, 11 Aug 2016 11:58:14 +0100
Subject: [PATCH] MIPS: KVM: Fix gfn range check in kseg0 tlb faults
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Two consecutive gfns are loaded into host TLB, so ensure the range check isn't off by one if guest_pmap_npages is odd.
Fixes 858dd5d45733 ("KVM/MIPS32: MMU/TLB operations for the Guest.")
Signed-off-by James Hogan <[email protected]>
Cc Paolo Bonzini <[email protected]>
Cc "Radim Krčmář" <[email protected]>
Cc Ralf Baechle <[email protected]>
Cc <[email protected]> # 3.10.x-
Signed-off-by Radim Krčmář <[email protected]>
arch/mips/kvm/mmu.c +1 -1
@@ -99,7 +99,7 @@ int kvm_mips_handle_kseg0_tlb_fault(unsigned long badvaddr, } gfn = (KVM_GUEST_CPHYSADDR (badvaddr) >>PAGE_SHIFT ); -if (gfn >= kvm->arch.guest_pmap_npages) { +if ((gfn |1 ) >= kvm->arch.guest_pmap_npages) {kvm_err ("%s: Invalid gfn: %#llx, BadVaddr: %#lx\n" , __func__, gfn, badvaddr);kvm_mips_dump_host_tlbs ();