From 47149b7c4275ddd4404d86eddab6feab4f059ed3 Mon Sep 17 00:00:00 2001 From: Andrei Vagin Date: Wed, 16 Jun 2021 12:55:27 -0700 Subject: kvm: mark UpperHalf PTE-s as global UpperHalf is shared with all address spaces. PiperOrigin-RevId: 379790539 --- pkg/sentry/platform/kvm/machine_amd64.go | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'pkg') 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) } } -- cgit v1.2.3