diff options
| author | Adin Scannell <ascannell@google.com> | 2018-06-06 21:47:39 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2018-06-06 21:48:24 -0700 |
| commit | 1b5062263b4a3ca3dc0271d9e06ad0113197344c (patch) | |
| tree | 69d6536240ffa1db76aaef0d4f3a873d86a0dfaf /pkg/sentry/platform/kvm/kvm.go | |
| parent | 206e90d057211f2ac53174907b2ff04801f9a481 (diff) | |
Add allocator abstraction for page tables.
In order to prevent possible garbage collection and reuse of page table
pages prior to invalidation, introduce a former allocator abstraction
that can ensure entries are held during a single traversal. This also
cleans up the abstraction and splits it out of the machine itself.
PiperOrigin-RevId: 199581636
Change-Id: I2257d5d7ffd9c36f9b7ecd42f769261baeaf115c
Diffstat (limited to 'pkg/sentry/platform/kvm/kvm.go')
| -rw-r--r-- | pkg/sentry/platform/kvm/kvm.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pkg/sentry/platform/kvm/kvm.go b/pkg/sentry/platform/kvm/kvm.go index 6defb1c46..13c363993 100644 --- a/pkg/sentry/platform/kvm/kvm.go +++ b/pkg/sentry/platform/kvm/kvm.go @@ -121,7 +121,7 @@ func (*KVM) MaxUserAddress() usermem.Addr { // NewAddressSpace returns a new pagetable root. func (k *KVM) NewAddressSpace(_ interface{}) (platform.AddressSpace, <-chan struct{}, error) { // Allocate page tables and install system mappings. - pageTables := k.machine.kernel.PageTables.New() + pageTables := k.machine.kernel.PageTables.New(newAllocator()) applyPhysicalRegions(func(pr physicalRegion) bool { // Map the kernel in the upper half. pageTables.Map( |