user/sven/linux.git/include/linux/kvm_host.h, branch v3.3.5

KVM: unmap pages from the iommu when slots are removed

2012-04-27T17:16:52Z

commit 32f6daad4651a748a58a3ab6da0611862175722f upstream. We've been adding new mappings, but not destroying old mappings. This can lead to a page leak as pages are pinned using get_user_pages, but only unpinned with put_page if they still exist in the memslots list on vm shutdown. A memslot that is destroyed while an iommu domain is enabled for the guest will therefore result in an elevated page reference count that is never cleared. Additionally, without this fix, the iommu is only programmed with the first translation for a gpa. This can result in peer-to-peer errors if a mapping is destroyed and replaced by a new mapping at the same gpa as the iommu will still be pointing to the original, pinned memory address. Signed-off-by: Alex Williamson Signed-off-by: Marcelo Tosatti Signed-off-by: Greg Kroah-Hartman

KVM: Expose a version 2 architectural PMU to a guests

2011-12-27T09:24:29Z

Use perf_events to emulate an architectural PMU, version 2. Based on PMU version 1 emulation by Avi Kivity. [avi: adjust for cpuid.c] [jan: fix anonymous field initialization for older gcc] Signed-off-by: Gleb Natapov Signed-off-by: Jan Kiszka Signed-off-by: Avi Kivity

KVM: drop bsp_vcpu pointer from kvm struct

2011-12-27T09:22:32Z

Drop bsp_vcpu pointer from kvm struct since its only use is incorrect anyway. Signed-off-by: Gleb Natapov Signed-off-by: Marcelo Tosatti

KVM: introduce a table to map slot id to index in memslots array

2011-12-27T09:17:42Z

The operation of getting dirty log is frequent when framebuffer-based displays are used(for example, Xwindow), so, we introduce a mapping table to speed up id_to_memslot() Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity

KVM: sort memslots by its size and use line search

2011-12-27T09:17:40Z

Sort memslots base on its size and use line search to find it, so that the larger memslots have better fit The idea is from Avi Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity

KVM: introduce id_to_memslot function

2011-12-27T09:17:39Z

Introduce id_to_memslot to get memslot by slot id Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity

KVM: introduce kvm_for_each_memslot macro

2011-12-27T09:17:37Z

Introduce kvm_for_each_memslot to walk all valid memslot Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity

KVM: introduce update_memslots function

2011-12-27T09:17:35Z

Introduce update_memslots to update slot which will be update to kvm->memslots Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity

KVM: introduce KVM_MEM_SLOTS_NUM macro

2011-12-27T09:17:34Z

Introduce KVM_MEM_SLOTS_NUM macro to instead of KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS Signed-off-by: Xiao Guangrong Signed-off-by: Avi Kivity

KVM: Count the number of dirty pages for dirty logging

2011-12-27T09:17:19Z

Needed for the next patch which uses this number to decide how to write protect a slot. Signed-off-by: Takuya Yoshikawa Signed-off-by: Avi Kivity