diff options
| author | Marcelo Tosatti | 2007-12-21 01:18:26 +0100 |
|---|---|---|
| committer | Avi Kivity | 2008-01-30 17:01:21 +0100 |
| commit | aaee2c94f7a1f7726e360a6cfb40173bd552bcff (patch) | |
| tree | e9066ae5509c349bfd6a187e85d52cc476e16a12 /include/linux/kvm_host.h | |
| parent | KVM: MMU: Avoid calling gfn_to_page() in mmu_set_spte() (diff) | |
| download | kernel-qcow2-linux-aaee2c94f7a1f7726e360a6cfb40173bd552bcff.tar.gz kernel-qcow2-linux-aaee2c94f7a1f7726e360a6cfb40173bd552bcff.tar.xz kernel-qcow2-linux-aaee2c94f7a1f7726e360a6cfb40173bd552bcff.zip | |
KVM: MMU: Switch to mmu spinlock
Convert the synchronization of the shadow handling to a separate mmu_lock
spinlock.
Also guard fetch() by mmap_sem in read-mode to protect against alias
and memslot changes.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index a020fb280540..2714068ee8bc 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -104,7 +104,8 @@ struct kvm_memory_slot { }; struct kvm { - struct mutex lock; /* protects everything except vcpus */ + struct mutex lock; /* protects the vcpus array and APIC accesses */ + spinlock_t mmu_lock; struct mm_struct *mm; /* userspace tied to this vm */ int nmemslots; struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + |