Sean Christopherson 3039bcc744 KVM: Move x86's MMU notifier memslot walkers to generic code ... Move the hva->gfn lookup for MMU notifiers into common code. Every arch does a similar lookup, and some arch code is all but identical across multiple architectures. In addition to consolidating code, this will allow introducing optimizations that will benefit all architectures without incurring multiple walks of the memslots, e.g. by taking mmu_lock if and only if a relevant range exists in the memslots. The use of __always_inline to avoid indirect call retpolines, as done by x86, may also benefit other architectures. Consolidating the lookups also fixes a wart in x86, where the legacy MMU and TDP MMU each do their own memslot walks. Lastly, future enhancements to the memslot implementation, e.g. to add an interval tree to track host address, will need to touch far less arch specific code. MIPS, PPC, and arm64 will be converted one at a time in future patches. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210402005658.3024832-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-04-17 08:31:06 -04:00
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kvm	KVM: Move x86's MMU notifier memslot walkers to generic code	2021-04-17 08:31:06 -04:00
lib	irqbypass: do not start cons/prod when failed connect	2020-08-05 11:08:42 -04:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00