From: Yang Zhang <yang.z.zhang@Intel.com>
Date: Thu, 24 Oct 2013 01:56:39 +0000 (+0800)
Subject: KVM: Mapping IOMMU pages after updating memslot
X-Git-Tag: v3.13-rc1~80^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0230e1327fb862c9b6cde24ae62d55f9db62c9b;p=pandora-kernel.git

KVM: Mapping IOMMU pages after updating memslot

In kvm_iommu_map_pages(), we need to know the page size via call
kvm_host_page_size(). And it will check whether the target slot
is valid before return the right page size.
Currently, we will map the iommu pages when creating a new slot.
But we call kvm_iommu_map_pages() during preparing the new slot.
At that time, the new slot is not visible by domain(still in preparing).
So we cannot get the right page size from kvm_host_page_size() and
this will break the IOMMU super page logic.
The solution is to map the iommu pages after we insert the new slot
into domain.

Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Tested-by: Patrick Lu <patrick.lu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

Reading git-diff-tree failed