DL-Mirrors/kernel-tenderloin-3.0
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KVM: introduce kvm->srcu and convert kvm_set_memory_region to SRCU update

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Use two steps for memslot deletion: mark the slot invalid (which stops
instantiation of new shadow pages for that slot, but allows destruction),
then instantiate the new empty slot.

Also simplifies kvm_handle_hva locking.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Marcelo Tosatti
2009-12-23 14:35:21 -02:00
parent 3ad26d8139
commit bc6678a33d
8 changed files with 136 additions and 64 deletions
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2
include/linux/kvm.h
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@@ -103,7 +103,7 @@ struct kvm_userspace_memory_region {
/* for kvm_memory_region::flags */
#define KVM_MEM_LOG_DIRTY_PAGES 1UL
#define KVM_MEMSLOT_INVALID (1UL << 1)
/* for KVM_IRQ_LINE */
struct kvm_irq_level {