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| author | gVisor bot <gvisor-bot@google.com> | 2021-05-01 06:11:37 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-05-01 06:11:37 +0000 |
| commit | 7e11a1532fdb66a9e89d55a7d3f951c602315c17 (patch) | |
| tree | 1f27f9c516d8e16bbec7b7d436b428b4ebee3e96 /pkg/ring0/pagetables | |
| parent | 4685f645de890131158be0290c470edb59484105 (diff) | |
| parent | cde8e8b7a905ce53fe72a1a71b86e9ef352bbc3a (diff) | |
Merge release-20210419.0-50-gcde8e8b7a (automated)
Diffstat (limited to 'pkg/ring0/pagetables')
| -rw-r--r-- | pkg/ring0/pagetables/pagetables.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pkg/ring0/pagetables/pagetables.go b/pkg/ring0/pagetables/pagetables.go index 3f17fba49..9dac53c80 100644 --- a/pkg/ring0/pagetables/pagetables.go +++ b/pkg/ring0/pagetables/pagetables.go @@ -322,3 +322,12 @@ func (p *PageTables) Lookup(addr hostarch.Addr, findFirst bool) (virtual hostarc func (p *PageTables) MarkReadOnlyShared() { p.readOnlyShared = true } + +// PrefaultRootTable touches the root table page to be sure that its physical +// pages are mapped. +// +//go:nosplit +//go:noinline +func (p *PageTables) PrefaultRootTable() PTE { + return p.root[0] +} |