diff options
| author | Andrei Vagin <avagin@google.com> | 2021-06-16 12:55:27 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-06-16 12:57:38 -0700 |
| commit | 47149b7c4275ddd4404d86eddab6feab4f059ed3 (patch) | |
| tree | e2ba5e462c9adc183231b4951f2d9cada834fb8c | |
| parent | 4add64d2b5dd369b61373de5f54e706e82d8ca0f (diff) | |
kvm: mark UpperHalf PTE-s as global
UpperHalf is shared with all address spaces.
PiperOrigin-RevId: 379790539
| -rw-r--r-- | pkg/sentry/platform/kvm/machine_amd64.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/sentry/platform/kvm/machine_amd64.go b/pkg/sentry/platform/kvm/machine_amd64.go index 7c063c7f5..7a10fd812 100644 --- a/pkg/sentry/platform/kvm/machine_amd64.go +++ b/pkg/sentry/platform/kvm/machine_amd64.go @@ -485,7 +485,7 @@ func (m *machine) mapUpperHalf(pageTable *pagetables.PageTables) { pageTable.Map( hostarch.Addr(ring0.KernelStartAddress|r.virtual), r.length, - pagetables.MapOpts{AccessType: hostarch.Execute}, + pagetables.MapOpts{AccessType: hostarch.Execute, Global: true}, physical) } }) @@ -498,7 +498,7 @@ func (m *machine) mapUpperHalf(pageTable *pagetables.PageTables) { pageTable.Map( hostarch.Addr(ring0.KernelStartAddress|start), regionLen, - pagetables.MapOpts{AccessType: hostarch.ReadWrite}, + pagetables.MapOpts{AccessType: hostarch.ReadWrite, Global: true}, physical) } } |