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-rw-r--r--pkg/sentry/platform/kvm/kvm_const_arm64.go21
-rw-r--r--pkg/sentry/platform/ring0/pagetables/pagetables_aarch64.go4
2 files changed, 16 insertions, 9 deletions
diff --git a/pkg/sentry/platform/kvm/kvm_const_arm64.go b/pkg/sentry/platform/kvm/kvm_const_arm64.go
index 9a7be3655..84df0f878 100644
--- a/pkg/sentry/platform/kvm/kvm_const_arm64.go
+++ b/pkg/sentry/platform/kvm/kvm_const_arm64.go
@@ -101,13 +101,20 @@ const (
// Arm64: Memory Attribute Indirection Register EL1.
const (
- _MT_DEVICE_nGnRnE = 0
- _MT_DEVICE_nGnRE = 1
- _MT_DEVICE_GRE = 2
- _MT_NORMAL_NC = 3
- _MT_NORMAL = 4
- _MT_NORMAL_WT = 5
- _MT_EL1_INIT = (0 << _MT_DEVICE_nGnRnE) | (0x4 << _MT_DEVICE_nGnRE * 8) | (0xc << _MT_DEVICE_GRE * 8) | (0x44 << _MT_NORMAL_NC * 8) | (0xff << _MT_NORMAL * 8) | (0xbb << _MT_NORMAL_WT * 8)
+ _MT_DEVICE_nGnRnE = 0
+ _MT_DEVICE_nGnRE = 1
+ _MT_DEVICE_GRE = 2
+ _MT_NORMAL_NC = 3
+ _MT_NORMAL = 4
+ _MT_NORMAL_WT = 5
+ _MT_ATTR_DEVICE_nGnRnE = 0x00
+ _MT_ATTR_DEVICE_nGnRE = 0x04
+ _MT_ATTR_DEVICE_GRE = 0x0c
+ _MT_ATTR_NORMAL_NC = 0x44
+ _MT_ATTR_NORMAL_WT = 0xbb
+ _MT_ATTR_NORMAL = 0xff
+ _MT_ATTR_MASK = 0xff
+ _MT_EL1_INIT = (_MT_ATTR_DEVICE_nGnRnE << (_MT_DEVICE_nGnRnE * 8)) | (_MT_ATTR_DEVICE_nGnRE << (_MT_DEVICE_nGnRE * 8)) | (_MT_ATTR_DEVICE_GRE << (_MT_DEVICE_GRE * 8)) | (_MT_ATTR_NORMAL_NC << (_MT_NORMAL_NC * 8)) | (_MT_ATTR_NORMAL << (_MT_NORMAL * 8)) | (_MT_ATTR_NORMAL_WT << (_MT_NORMAL_WT * 8))
)
const (
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)
}