Paolo Bonzini add6a0cd1c KVM: MMU: try to fix up page faults before giving up ... The vGPU folks would like to trap the first access to a BAR by setting vm_ops on the VMAs produced by mmap-ing a VFIO device. The fault handler then can use remap_pfn_range to place some non-reserved pages in the VMA. This kind of VM_PFNMAP mapping is not handled by KVM, but follow_pfn and fixup_user_fault together help supporting it. The patch also supports VM_MIXEDMAP vmas where the pfns are not reserved and thus subject to reference counting. Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Tested-by: Neo Jia <cjia@nvidia.com> Reported-by: Kirti Wankhede <kwankhede@nvidia.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2016-07-05 14:41:26 +02:00
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kvm	KVM: MMU: try to fix up page faults before giving up	2016-07-05 14:41:26 +02:00
lib	irqbypass: Disallow NULL token	2016-05-11 22:37:54 +02:00
Makefile