Paolo Bonzini e72436bc3a KVM: SVM: avoid infinite loop on NPF from bad address ... When a nested page fault is taken from an address that does not have a memslot associated to it, kvm_mmu_do_page_fault returns RET_PF_EMULATE (via mmu_set_spte) and kvm_mmu_page_fault then invokes svm_need_emulation_on_page_fault. The default answer there is to return false, but in this case this just causes the page fault to be retried ad libitum. Since this is not a fast path, and the only other case where it is taken is an erratum, just stick a kvm_vcpu_gfn_to_memslot check in there to detect the common case where the erratum is not happening. This fixes an infinite loop in the new set_memory_region_test. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2020-04-21 09:13:13 -04:00
..
kvm	KVM: SVM: avoid infinite loop on NPF from bad address	2020-04-21 09:13:13 -04:00
lib	KVM: lib: use jump label to handle resource release in irq_bypass_register_producer()	2020-01-08 18:16:01 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00