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authorgVisor bot <gvisor-bot@google.com>2020-10-09 21:17:17 +0000
committergVisor bot <gvisor-bot@google.com>2020-10-09 21:17:17 +0000
commit544dbeba179c4667ca48254ffd3105929c0e8ec8 (patch)
treed8f291c55f6024268992e9c7c2ef1bfa1b45ab2d /pkg/sentry/platform/ring0
parentc2efbcaa5bb105e652045ee720e8acec1e2bc50d (diff)
parent6df400dfb61e2219b1d88dd2aa6be7fbb59d3ab6 (diff)
Merge release-20200928.0-84-g6df400dfb (automated)
Diffstat (limited to 'pkg/sentry/platform/ring0')
-rw-r--r--pkg/sentry/platform/ring0/entry_impl_arm64.s3
-rw-r--r--pkg/sentry/platform/ring0/pagetables/pagetables_aarch64.go4
2 files changed, 4 insertions, 3 deletions
diff --git a/pkg/sentry/platform/ring0/entry_impl_arm64.s b/pkg/sentry/platform/ring0/entry_impl_arm64.s
index a3381b701..af2bdefcb 100644
--- a/pkg/sentry/platform/ring0/entry_impl_arm64.s
+++ b/pkg/sentry/platform/ring0/entry_impl_arm64.s
@@ -118,8 +118,9 @@
#define SCTLR_C 1 << 2
#define SCTLR_I 1 << 12
#define SCTLR_UCT 1 << 15
+#define SCTLR_UCI 1 << 26
-#define SCTLR_EL1_DEFAULT (SCTLR_M | SCTLR_C | SCTLR_I | SCTLR_UCT)
+#define SCTLR_EL1_DEFAULT (SCTLR_M | SCTLR_C | SCTLR_I | SCTLR_UCT | SCTLR_UCI)
// cntkctl_el1: counter-timer kernel control register el1.
#define CNTKCTL_EL0PCTEN 1 << 0
diff --git a/pkg/sentry/platform/ring0/pagetables/pagetables_aarch64.go b/pkg/sentry/platform/ring0/pagetables/pagetables_aarch64.go
index 6409d1d91..520161755 100644
--- a/pkg/sentry/platform/ring0/pagetables/pagetables_aarch64.go
+++ b/pkg/sentry/platform/ring0/pagetables/pagetables_aarch64.go
@@ -78,7 +78,7 @@ const (
const (
executeDisable = xn
- optionMask = 0xfff | 0xfff<<48
+ optionMask = 0xfff | 0xffff<<48
protDefault = accessed | shared
)
@@ -188,7 +188,7 @@ func (p *PTE) Set(addr uintptr, opts MapOpts) {
v |= mtNormal
} else {
v = v &^ user
- v |= mtDevicenGnRE // Strong order for the addresses with ring0.KernelStartAddress.
+ v |= mtNormal
}
atomic.StoreUintptr((*uintptr)(p), v)
}