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Merge "[MTE] do not show notification for persistent MTE"

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This commit is contained in:
Florian Mayer
2022-10-03 16:34:04 +00:00
committed by Android (Google) Code Review
parent a77b86f6f8 b32d842687
commit 595df6c464
1 changed files with 8 additions and 1 deletions
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9
services/core/java/com/android/server/am/ActivityManagerService.java
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@@ -5335,7 +5335,14 @@ public class ActivityManagerService extends IActivityManager.Stub
}
private void showMteOverrideNotificationIfActive() {
if (!SystemProperties.getBoolean("ro.arm64.memtag.bootctl_supported", false)
String bootctl = SystemProperties.get("arm64.memtag.bootctl");
// If MTE is on, there is one in three cases:
// * a fullmte build: ro.arm64.memtag.bootctl_supported is not set
// * memtag: arm64.memtag.bootctl contains "memtag"
// * memtag-once
// In the condition below we detect memtag-once by exclusion.
if (Arrays.asList(bootctl.split(",")).contains("memtag")
|| !SystemProperties.getBoolean("ro.arm64.memtag.bootctl_supported", false)
|| !com.android.internal.os.Zygote.nativeSupportsMemoryTagging()) {
return;
}