tree e8ac38a587a4cf2cac88df4580e7112c15b13e14
parent bc32ce2152406431acf4daf4a81dc1664bb7b91b
author Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> 1282994653 +0800
committer Avi Kivity <avi@redhat.com> 1287910308 +0200

KVM: MMU: rewrite audit_mappings_page() function

There is a bugs in this function, we call gfn_to_pfn() and kvm_mmu_gva_to_gpa_read() in
atomic context(kvm_mmu_audit() is called under the spinlock(mmu_lock)'s protection).

This patch fix it by:
- introduce gfn_to_pfn_atomic instead of gfn_to_pfn
- get the mapping gfn from kvm_mmu_page_get_gfn()

And it adds 'notrap' ptes check in unsync/direct sps

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>