diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index f7edf8e..38be934 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -1103,6 +1103,7 @@
 static std::string get_current_slot() {
     std::string current_slot;
     if (fb->GetVar("current-slot", &current_slot) != fastboot::SUCCESS) return "";
+    if (current_slot[0] == '_') current_slot.erase(0, 1);
     return current_slot;
 }
 
@@ -1950,6 +1951,7 @@
             if (slot_override == "") {
                 std::string current_slot;
                 if (fb->GetVar("current-slot", &current_slot) == fastboot::SUCCESS) {
+                    if (current_slot[0] == '_') current_slot.erase(0, 1);
                     next_active = verify_slot(current_slot, false);
                 } else {
                     wants_set_active = false;
diff --git a/fs_mgr/fs_mgr_boot_config.cpp b/fs_mgr/fs_mgr_boot_config.cpp
index abece4d..75d1e0d 100644
--- a/fs_mgr/fs_mgr_boot_config.cpp
+++ b/fs_mgr/fs_mgr_boot_config.cpp
@@ -26,7 +26,7 @@
 
 #include "fs_mgr_priv.h"
 
-std::vector<std::pair<std::string, std::string>> fs_mgr_parse_boot_config(const std::string& cmdline) {
+std::vector<std::pair<std::string, std::string>> fs_mgr_parse_cmdline(const std::string& cmdline) {
     static constexpr char quote = '"';
 
     std::vector<std::pair<std::string, std::string>> result;
@@ -60,12 +60,50 @@
     return result;
 }
 
+std::vector<std::pair<std::string, std::string>> fs_mgr_parse_proc_bootconfig(
+        const std::string& cmdline) {
+    static constexpr char quote = '"';
+
+    std::vector<std::pair<std::string, std::string>> result;
+    for (auto& line : android::base::Split(cmdline, "\n")) {
+        line.erase(std::remove(line.begin(), line.end(), quote), line.end());
+        auto equal_sign = line.find('=');
+        if (equal_sign == line.npos) {
+            if (!line.empty()) {
+                // no difference between <key> and <key>=
+                result.emplace_back(std::move(line), "");
+            }
+        } else {
+            result.emplace_back(android::base::Trim(line.substr(0, equal_sign)),
+                                android::base::Trim(line.substr(equal_sign + 1)));
+        }
+    }
+
+    return result;
+}
+
+bool fs_mgr_get_boot_config_from_bootconfig(const std::string& bootconfig,
+                                            const std::string& android_key, std::string* out_val) {
+    FS_MGR_CHECK(out_val != nullptr);
+
+    const std::string bootconfig_key("androidboot." + android_key);
+    for (const auto& [key, value] : fs_mgr_parse_proc_bootconfig(bootconfig)) {
+        if (key == bootconfig_key) {
+            *out_val = value;
+            return true;
+        }
+    }
+
+    *out_val = "";
+    return false;
+}
+
 bool fs_mgr_get_boot_config_from_kernel(const std::string& cmdline, const std::string& android_key,
                                         std::string* out_val) {
     FS_MGR_CHECK(out_val != nullptr);
 
     const std::string cmdline_key("androidboot." + android_key);
-    for (const auto& [key, value] : fs_mgr_parse_boot_config(cmdline)) {
+    for (const auto& [key, value] : fs_mgr_parse_cmdline(cmdline)) {
         if (key == cmdline_key) {
             *out_val = value;
             return true;
@@ -76,6 +114,17 @@
     return false;
 }
 
+// Tries to get the given boot config value from bootconfig.
+// Returns true if successfully found, false otherwise.
+bool fs_mgr_get_boot_config_from_bootconfig_source(const std::string& key, std::string* out_val) {
+    std::string bootconfig;
+    if (!android::base::ReadFileToString("/proc/bootconfig", &bootconfig)) return false;
+    if (!bootconfig.empty() && bootconfig.back() == '\n') {
+        bootconfig.pop_back();
+    }
+    return fs_mgr_get_boot_config_from_bootconfig(bootconfig, key, out_val);
+}
+
 // Tries to get the given boot config value from kernel cmdline.
 // Returns true if successfully found, false otherwise.
 bool fs_mgr_get_boot_config_from_kernel_cmdline(const std::string& key, std::string* out_val) {
@@ -110,6 +159,11 @@
         return true;
     }
 
+    // next, check if we have the property in bootconfig
+    if (fs_mgr_get_boot_config_from_bootconfig_source(key, out_val)) {
+        return true;
+    }
+
     // finally, fallback to kernel cmdline, properties may not be ready yet
     if (fs_mgr_get_boot_config_from_kernel_cmdline(key, out_val)) {
         return true;
diff --git a/fs_mgr/fs_mgr_fstab.cpp b/fs_mgr/fs_mgr_fstab.cpp
index 42459ec..785a8e0 100644
--- a/fs_mgr/fs_mgr_fstab.cpp
+++ b/fs_mgr/fs_mgr_fstab.cpp
@@ -412,7 +412,8 @@
 
         if (!fs_mgr_get_boot_config(prop, &suffix)) continue;
 
-        for (const char* prefix : {"/odm/etc/fstab.", "/vendor/etc/fstab.", "/fstab."}) {
+        for (const char* prefix :
+             {"/odm/etc/fstab.", "/vendor/etc/fstab.", "/fstab.", "/first_stage_ramdisk/fstab."}) {
             std::string fstab_path = prefix + suffix;
             if (access(fstab_path.c_str(), F_OK) == 0) {
                 return fstab_path;
@@ -854,7 +855,7 @@
     if (android::base::ReadFileToString("/proc/cmdline", &cmdline)) {
         std::set<std::string> boot_devices;
         const std::string cmdline_key = "androidboot.boot_device";
-        for (const auto& [key, value] : fs_mgr_parse_boot_config(cmdline)) {
+        for (const auto& [key, value] : fs_mgr_parse_cmdline(cmdline)) {
             if (key == cmdline_key) {
                 boot_devices.emplace(value);
             }
diff --git a/fs_mgr/fs_mgr_priv_boot_config.h b/fs_mgr/fs_mgr_priv_boot_config.h
index 417fb38..6a38401 100644
--- a/fs_mgr/fs_mgr_priv_boot_config.h
+++ b/fs_mgr/fs_mgr_priv_boot_config.h
@@ -22,11 +22,16 @@
 #include <utility>
 #include <vector>
 
-std::vector<std::pair<std::string, std::string>> fs_mgr_parse_boot_config(const std::string& cmdline);
+std::vector<std::pair<std::string, std::string>> fs_mgr_parse_cmdline(const std::string& cmdline);
 
 bool fs_mgr_get_boot_config_from_kernel(const std::string& cmdline, const std::string& key,
                                         std::string* out_val);
 bool fs_mgr_get_boot_config_from_kernel_cmdline(const std::string& key, std::string* out_val);
 bool fs_mgr_get_boot_config(const std::string& key, std::string* out_val);
+std::vector<std::pair<std::string, std::string>> fs_mgr_parse_proc_bootconfig(
+        const std::string& bootconfig);
+bool fs_mgr_get_boot_config_from_bootconfig(const std::string& bootconfig, const std::string& key,
+                                            std::string* out_val);
+bool fs_mgr_get_boot_config_from_bootconfig_source(const std::string& key, std::string* out_val);
 
 #endif /* __CORE_FS_MGR_PRIV_BOOTCONFIG_H */
diff --git a/fs_mgr/tests/fs_mgr_test.cpp b/fs_mgr/tests/fs_mgr_test.cpp
index 46f1c59..62a8d3b 100644
--- a/fs_mgr/tests/fs_mgr_test.cpp
+++ b/fs_mgr/tests/fs_mgr_test.cpp
@@ -119,10 +119,73 @@
         {"terminator", "truncated"},
 };
 
+const std::string bootconfig =
+        "androidboot.bootdevice  = \" \"1d84000.ufshc\"\n"
+        "androidboot.baseband = \"sdy\"\n"
+        "androidboot.keymaster = \"1\"\n"
+        "androidboot.serialno = \"BLAHBLAHBLAH\"\n"
+        "androidboot.slot_suffix = \"_a\"\n"
+        "androidboot.hardware.platform = \"sdw813\"\n"
+        "androidboot.hardware = \"foo\"\n"
+        "androidboot.revision = \"EVT1.0\"\n"
+        "androidboot.bootloader = \"burp-0.1-7521\"\n"
+        "androidboot.hardware.sku = \"mary\"\n"
+        "androidboot.hardware.radio.subtype = \"0\"\n"
+        "androidboot.dtbo_idx = \"2\"\n"
+        "androidboot.mode = \"normal\"\n"
+        "androidboot.hardware.ddr = \"1GB,combuchi,LPDDR4X\"\n"
+        "androidboot.ddr_info = \"combuchiandroidboot.ddr_size=2GB\"\n"
+        "androidboot.hardware.ufs = \"2GB,combushi\"\n"
+        "androidboot.boottime = \"0BLE:58,1BLL:22,1BLE:571,2BLL:105,ODT:0,AVB:123\"\n"
+        "androidboot.ramdump = \"disabled\"\n"
+        "androidboot.vbmeta.device = \"PARTUUID=aa08f1a4-c7c9-402e-9a66-9707cafa9ceb\"\n"
+        "androidboot.vbmeta.avb_version = \"1.1\"\n"
+        "androidboot.vbmeta.device_state = \"unlocked\"\n"
+        "androidboot.vbmeta.hash_alg = \"sha256\"\n"
+        "androidboot.vbmeta.size = \"5248\"\n"
+        "androidboot.vbmeta.digest = \""
+        "ac13147e959861c20f2a6da97d25fe79e60e902c022a371c5c039d31e7c68860\"\n"
+        "androidboot.vbmeta.invalidate_on_error = \"yes\"\n"
+        "androidboot.veritymode = \"enforcing\"\n"
+        "androidboot.verifiedbootstate = \"orange\"\n"
+        "androidboot.space = \"sha256 5248 androidboot.nospace = nope\"\n";
+
+const std::vector<std::pair<std::string, std::string>> bootconfig_result_space = {
+        {"androidboot.bootdevice", "1d84000.ufshc"},
+        {"androidboot.baseband", "sdy"},
+        {"androidboot.keymaster", "1"},
+        {"androidboot.serialno", "BLAHBLAHBLAH"},
+        {"androidboot.slot_suffix", "_a"},
+        {"androidboot.hardware.platform", "sdw813"},
+        {"androidboot.hardware", "foo"},
+        {"androidboot.revision", "EVT1.0"},
+        {"androidboot.bootloader", "burp-0.1-7521"},
+        {"androidboot.hardware.sku", "mary"},
+        {"androidboot.hardware.radio.subtype", "0"},
+        {"androidboot.dtbo_idx", "2"},
+        {"androidboot.mode", "normal"},
+        {"androidboot.hardware.ddr", "1GB,combuchi,LPDDR4X"},
+        {"androidboot.ddr_info", "combuchiandroidboot.ddr_size=2GB"},
+        {"androidboot.hardware.ufs", "2GB,combushi"},
+        {"androidboot.boottime", "0BLE:58,1BLL:22,1BLE:571,2BLL:105,ODT:0,AVB:123"},
+        {"androidboot.ramdump", "disabled"},
+        {"androidboot.vbmeta.device", "PARTUUID=aa08f1a4-c7c9-402e-9a66-9707cafa9ceb"},
+        {"androidboot.vbmeta.avb_version", "1.1"},
+        {"androidboot.vbmeta.device_state", "unlocked"},
+        {"androidboot.vbmeta.hash_alg", "sha256"},
+        {"androidboot.vbmeta.size", "5248"},
+        {"androidboot.vbmeta.digest",
+         "ac13147e959861c20f2a6da97d25fe79e60e902c022a371c5c039d31e7c68860"},
+        {"androidboot.vbmeta.invalidate_on_error", "yes"},
+        {"androidboot.veritymode", "enforcing"},
+        {"androidboot.verifiedbootstate", "orange"},
+        {"androidboot.space", "sha256 5248 androidboot.nospace = nope"},
+};
+
 }  // namespace
 
-TEST(fs_mgr, fs_mgr_parse_boot_config) {
-    EXPECT_EQ(result_space, fs_mgr_parse_boot_config(cmdline));
+TEST(fs_mgr, fs_mgr_parse_cmdline) {
+    EXPECT_EQ(result_space, fs_mgr_parse_cmdline(cmdline));
 }
 
 TEST(fs_mgr, fs_mgr_get_boot_config_from_kernel_cmdline) {
@@ -140,6 +203,27 @@
     EXPECT_TRUE(content.empty()) << content;
 }
 
+TEST(fs_mgr, fs_mgr_parse_bootconfig) {
+    EXPECT_EQ(bootconfig_result_space, fs_mgr_parse_proc_bootconfig(bootconfig));
+}
+
+TEST(fs_mgr, fs_mgr_get_boot_config_from_bootconfig) {
+    std::string content;
+    for (const auto& entry : bootconfig_result_space) {
+        static constexpr char androidboot[] = "androidboot.";
+        if (!android::base::StartsWith(entry.first, androidboot)) continue;
+        auto key = entry.first.substr(strlen(androidboot));
+        EXPECT_TRUE(fs_mgr_get_boot_config_from_bootconfig(bootconfig, key, &content))
+                << " for " << key;
+        EXPECT_EQ(entry.second, content);
+    }
+
+    EXPECT_FALSE(fs_mgr_get_boot_config_from_bootconfig(bootconfig, "vbmeta.avb_versio", &content));
+    EXPECT_TRUE(content.empty()) << content;
+    EXPECT_FALSE(fs_mgr_get_boot_config_from_bootconfig(bootconfig, "nospace", &content));
+    EXPECT_TRUE(content.empty()) << content;
+}
+
 TEST(fs_mgr, fs_mgr_read_fstab_file_proc_mounts) {
     Fstab fstab;
     ASSERT_TRUE(ReadFstabFromFile("/proc/mounts", &fstab));
diff --git a/fs_mgr/tools/dmuserd.cpp b/fs_mgr/tools/dmuserd.cpp
index e50a4a2..6b68b28 100644
--- a/fs_mgr/tools/dmuserd.cpp
+++ b/fs_mgr/tools/dmuserd.cpp
@@ -81,7 +81,7 @@
     ssize_t total = 0;
     ssize_t once;
 
-    while (total < len) {
+    while (total < static_cast<ssize_t>(len)) {
         once = write(fd, buf_c + total, len - total);
         if (once < 0) return once;
         if (once == 0) {
@@ -99,7 +99,7 @@
     ssize_t total = 0;
     ssize_t once;
 
-    while (total < len) {
+    while (total < static_cast<ssize_t>(len)) {
         once = read(fd, buf_c + total, len - total);
         if (once < 0) return once;
         if (once == 0) {
diff --git a/init/first_stage_init.cpp b/init/first_stage_init.cpp
index 83d2b6d..ff75aa3 100644
--- a/init/first_stage_init.cpp
+++ b/init/first_stage_init.cpp
@@ -209,6 +209,8 @@
     CHECKCALL(chmod("/proc/cmdline", 0440));
     std::string cmdline;
     android::base::ReadFileToString("/proc/cmdline", &cmdline);
+    // Don't expose the raw bootconfig to unprivileged processes.
+    chmod("/proc/bootconfig", 0440);
     gid_t groups[] = {AID_READPROC};
     CHECKCALL(setgroups(arraysize(groups), groups));
     CHECKCALL(mount("sysfs", "/sys", "sysfs", 0, NULL));
@@ -296,7 +298,15 @@
                   << module_elapse_time.count() << " ms";
     }
 
+
+    bool created_devices = false;
     if (want_console == FirstStageConsoleParam::CONSOLE_ON_FAILURE) {
+        if (!IsRecoveryMode()) {
+            created_devices = DoCreateDevices();
+            if (!created_devices){
+                LOG(ERROR) << "Failed to create device nodes early";
+            }
+        }
         StartConsole(cmdline);
     }
 
@@ -337,7 +347,7 @@
         }
     }
 
-    if (!DoFirstStageMount()) {
+    if (!DoFirstStageMount(!created_devices)) {
         LOG(FATAL) << "Failed to mount required partitions early ...";
     }
 
diff --git a/init/first_stage_mount.cpp b/init/first_stage_mount.cpp
index 7307237..a11bb28 100644
--- a/init/first_stage_mount.cpp
+++ b/init/first_stage_mount.cpp
@@ -44,6 +44,7 @@
 
 #include "block_dev_initializer.h"
 #include "devices.h"
+#include "result.h"
 #include "snapuserd_transition.h"
 #include "switch_root.h"
 #include "uevent.h"
@@ -51,6 +52,7 @@
 #include "util.h"
 
 using android::base::ReadFileToString;
+using android::base::Result;
 using android::base::Split;
 using android::base::StringPrintf;
 using android::base::Timer;
@@ -81,7 +83,8 @@
 
     // The factory method to create either FirstStageMountVBootV1 or FirstStageMountVBootV2
     // based on device tree configurations.
-    static std::unique_ptr<FirstStageMount> Create();
+    static Result<std::unique_ptr<FirstStageMount>> Create();
+    bool DoCreateDevices();    // Creates devices and logical partitions from storage devices
     bool DoFirstStageMount();  // Mounts fstab entries read from device tree.
     bool InitDevices();
 
@@ -159,7 +162,7 @@
     return is_android_dt_value_expected("vbmeta/compatible", "android,vbmeta");
 }
 
-static Fstab ReadFirstStageFstab() {
+static Result<Fstab> ReadFirstStageFstab() {
     Fstab fstab;
     if (!ReadFstabFromDt(&fstab)) {
         if (ReadDefaultFstab(&fstab)) {
@@ -169,7 +172,7 @@
                                        }),
                         fstab.end());
         } else {
-            LOG(INFO) << "Failed to fstab for first stage mount";
+            return Error() << "failed to read default fstab for first stage mount";
         }
     }
     return fstab;
@@ -235,22 +238,20 @@
     super_partition_name_ = fs_mgr_get_super_partition_name();
 }
 
-std::unique_ptr<FirstStageMount> FirstStageMount::Create() {
+Result<std::unique_ptr<FirstStageMount>> FirstStageMount::Create() {
     auto fstab = ReadFirstStageFstab();
-    if (IsDtVbmetaCompatible(fstab)) {
-        return std::make_unique<FirstStageMountVBootV2>(std::move(fstab));
+    if (!fstab.ok()) {
+        return fstab.error();
+    }
+
+    if (IsDtVbmetaCompatible(*fstab)) {
+        return std::make_unique<FirstStageMountVBootV2>(std::move(*fstab));
     } else {
-        return std::make_unique<FirstStageMountVBootV1>(std::move(fstab));
+        return std::make_unique<FirstStageMountVBootV1>(std::move(*fstab));
     }
 }
 
-bool FirstStageMount::DoFirstStageMount() {
-    if (!IsDmLinearEnabled() && fstab_.empty()) {
-        // Nothing to mount.
-        LOG(INFO) << "First stage mount skipped (missing/incompatible/empty fstab in device tree)";
-        return true;
-    }
-
+bool FirstStageMount::DoCreateDevices() {
     if (!InitDevices()) return false;
 
     // Mount /metadata before creating logical partitions, since we need to
@@ -269,6 +270,16 @@
 
     if (!CreateLogicalPartitions()) return false;
 
+    return true;
+}
+
+bool FirstStageMount::DoFirstStageMount() {
+    if (!IsDmLinearEnabled() && fstab_.empty()) {
+        // Nothing to mount.
+        LOG(INFO) << "First stage mount skipped (missing/incompatible/empty fstab in device tree)";
+        return true;
+    }
+
     if (!MountPartitions()) return false;
 
     return true;
@@ -829,20 +840,35 @@
 
 // Public functions
 // ----------------
+// Creates devices and logical partitions from storage devices
+bool DoCreateDevices() {
+    auto fsm = FirstStageMount::Create();
+    if (!fsm.ok()) {
+        LOG(ERROR) << "Failed to create FirstStageMount: " << fsm.error();
+        return false;
+    }
+    return (*fsm)->DoCreateDevices();
+}
+
 // Mounts partitions specified by fstab in device tree.
-bool DoFirstStageMount() {
+bool DoFirstStageMount(bool create_devices) {
     // Skips first stage mount if we're in recovery mode.
     if (IsRecoveryMode()) {
         LOG(INFO) << "First stage mount skipped (recovery mode)";
         return true;
     }
 
-    std::unique_ptr<FirstStageMount> handle = FirstStageMount::Create();
-    if (!handle) {
-        LOG(ERROR) << "Failed to create FirstStageMount";
+    auto fsm = FirstStageMount::Create();
+    if (!fsm.ok()) {
+        LOG(ERROR) << "Failed to create FirstStageMount " << fsm.error();
         return false;
     }
-    return handle->DoFirstStageMount();
+
+    if (create_devices) {
+        if (!(*fsm)->DoCreateDevices()) return false;
+    }
+
+    return (*fsm)->DoFirstStageMount();
 }
 
 void SetInitAvbVersionInRecovery() {
@@ -852,8 +878,12 @@
     }
 
     auto fstab = ReadFirstStageFstab();
+    if (!fstab.ok()) {
+        LOG(ERROR) << fstab.error();
+        return;
+    }
 
-    if (!IsDtVbmetaCompatible(fstab)) {
+    if (!IsDtVbmetaCompatible(*fstab)) {
         LOG(INFO) << "Skipped setting INIT_AVB_VERSION (not vbmeta compatible)";
         return;
     }
@@ -863,7 +893,7 @@
     // We only set INIT_AVB_VERSION when the AVB verification succeeds, i.e., the
     // Open() function returns a valid handle.
     // We don't need to mount partitions here in recovery mode.
-    FirstStageMountVBootV2 avb_first_mount(std::move(fstab));
+    FirstStageMountVBootV2 avb_first_mount(std::move(*fstab));
     if (!avb_first_mount.InitDevices()) {
         LOG(ERROR) << "Failed to init devices for INIT_AVB_VERSION";
         return;
diff --git a/init/first_stage_mount.h b/init/first_stage_mount.h
index 21d87fd..2f4e663 100644
--- a/init/first_stage_mount.h
+++ b/init/first_stage_mount.h
@@ -19,7 +19,8 @@
 namespace android {
 namespace init {
 
-bool DoFirstStageMount();
+bool DoCreateDevices();
+bool DoFirstStageMount(bool create_devices);
 void SetInitAvbVersionInRecovery();
 
 }  // namespace init
diff --git a/init/property_service.cpp b/init/property_service.cpp
index ce67386..b722702 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -1180,6 +1180,14 @@
     }
 }
 
+static void ProcessBootconfig() {
+    ImportBootconfig([&](const std::string& key, const std::string& value) {
+        if (StartsWith(key, "androidboot.")) {
+            InitPropertySet("ro.boot." + key.substr(12), value);
+        }
+    });
+}
+
 void PropertyInit() {
     selinux_callback cb;
     cb.func_audit = PropertyAuditCallback;
@@ -1198,6 +1206,7 @@
     // properties set in DT always have priority over the command-line ones.
     ProcessKernelDt();
     ProcessKernelCmdline();
+    ProcessBootconfig();
 
     // Propagate the kernel variables to internal variables
     // used by init as well as the current required properties.
diff --git a/init/util.cpp b/init/util.cpp
index 255434a..e69b43f 100644
--- a/init/util.cpp
+++ b/init/util.cpp
@@ -246,6 +246,19 @@
     }
 }
 
+void ImportBootconfig(const std::function<void(const std::string&, const std::string&)>& fn) {
+    std::string bootconfig;
+    android::base::ReadFileToString("/proc/bootconfig", &bootconfig);
+
+    for (const auto& entry : android::base::Split(bootconfig, "\n")) {
+        std::vector<std::string> pieces = android::base::Split(entry, "=");
+        if (pieces.size() == 2) {
+            pieces[1].erase(std::remove(pieces[1].begin(), pieces[1].end(), '"'), pieces[1].end());
+            fn(android::base::Trim(pieces[0]), android::base::Trim(pieces[1]));
+        }
+    }
+}
+
 bool make_dir(const std::string& path, mode_t mode) {
     std::string secontext;
     if (SelabelLookupFileContext(path, mode, &secontext) && !secontext.empty()) {
diff --git a/init/util.h b/init/util.h
index 3cdc9f4..7745d77 100644
--- a/init/util.h
+++ b/init/util.h
@@ -55,6 +55,7 @@
 bool mkdir_recursive(const std::string& pathname, mode_t mode);
 int wait_for_file(const char *filename, std::chrono::nanoseconds timeout);
 void ImportKernelCmdline(const std::function<void(const std::string&, const std::string&)>&);
+void ImportBootconfig(const std::function<void(const std::string&, const std::string&)>&);
 bool make_dir(const std::string& path, mode_t mode);
 bool is_dir(const char* pathname);
 Result<std::string> ExpandProps(const std::string& src);
diff --git a/libprocessgroup/include/processgroup/processgroup.h b/libprocessgroup/include/processgroup/processgroup.h
index 1aaed7b..fa2642d 100644
--- a/libprocessgroup/include/processgroup/processgroup.h
+++ b/libprocessgroup/include/processgroup/processgroup.h
@@ -35,9 +35,6 @@
 #ifndef __ANDROID_VNDK__
 
 static constexpr const char* CGROUPS_RC_PATH = "/dev/cgroup_info/cgroup.rc";
-// Path to test against for freezer support
-// TODO: remove and replace with a function call, see http://b/180056337
-static constexpr const char* CGROUP_FREEZE_PATH = "/sys/fs/cgroup/uid_0/cgroup.freeze";
 
 bool UsePerAppMemcg();
 
@@ -68,6 +65,10 @@
 
 void removeAllProcessGroups(void);
 
+// Provides the path for an attribute in a specific process group
+// Returns false in case of error, true in case of success
+bool getAttributePathForTask(const std::string& attr_name, int tid, std::string* path);
+
 #endif // __ANDROID_VNDK__
 
 __END_DECLS
diff --git a/libprocessgroup/processgroup.cpp b/libprocessgroup/processgroup.cpp
index 209ccd9..815d2bb 100644
--- a/libprocessgroup/processgroup.cpp
+++ b/libprocessgroup/processgroup.cpp
@@ -508,3 +508,7 @@
 bool setProcessGroupLimit(uid_t, int pid, int64_t limit_in_bytes) {
     return SetProcessGroupValue(pid, "MemLimit", limit_in_bytes);
 }
+
+bool getAttributePathForTask(const std::string& attr_name, int tid, std::string* path) {
+    return CgroupGetAttributePathForTask(attr_name, tid, path);
+}
diff --git a/libprocessgroup/profiles/cgroups.json b/libprocessgroup/profiles/cgroups.json
index 7bcb94b..962d2ba 100644
--- a/libprocessgroup/profiles/cgroups.json
+++ b/libprocessgroup/profiles/cgroups.json
@@ -37,7 +37,7 @@
     "Controllers": [
       {
         "Controller": "freezer",
-        "Path": "freezer",
+        "Path": ".",
         "Mode": "0755",
         "UID": "system",
         "GID": "system"
diff --git a/libprocessgroup/setup/cgroup_map_write.cpp b/libprocessgroup/setup/cgroup_map_write.cpp
index 753fd2d..aa41acb 100644
--- a/libprocessgroup/setup/cgroup_map_write.cpp
+++ b/libprocessgroup/setup/cgroup_map_write.cpp
@@ -183,10 +183,12 @@
         return false;
     }
 
-    Json::Reader reader;
+    Json::CharReaderBuilder builder;
+    std::unique_ptr<Json::CharReader> reader(builder.newCharReader());
     Json::Value root;
-    if (!reader.parse(json_doc, root)) {
-        LOG(ERROR) << "Failed to parse cgroups description: " << reader.getFormattedErrorMessages();
+    std::string errorMessage;
+    if (!reader->parse(&*json_doc.begin(), &*json_doc.end(), &root, &errorMessage)) {
+        LOG(ERROR) << "Failed to parse cgroups description: " << errorMessage;
         return false;
     }
 
diff --git a/libprocessgroup/task_profiles.cpp b/libprocessgroup/task_profiles.cpp
index 8d4ce25..f13a681 100644
--- a/libprocessgroup/task_profiles.cpp
+++ b/libprocessgroup/task_profiles.cpp
@@ -425,10 +425,12 @@
         return false;
     }
 
-    Json::Reader reader;
+    Json::CharReaderBuilder builder;
+    std::unique_ptr<Json::CharReader> reader(builder.newCharReader());
     Json::Value root;
-    if (!reader.parse(json_doc, root)) {
-        LOG(ERROR) << "Failed to parse task profiles: " << reader.getFormattedErrorMessages();
+    std::string errorMessage;
+    if (!reader->parse(&*json_doc.begin(), &*json_doc.end(), &root, &errorMessage)) {
+        LOG(ERROR) << "Failed to parse task profiles: " << errorMessage;
         return false;
     }
 
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 7464d6d..04e954e 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -244,6 +244,7 @@
     chmod 0664 /dev/blkio/background/tasks
     write /dev/blkio/blkio.weight 1000
     write /dev/blkio/background/blkio.weight 200
+    write /dev/blkio/background/blkio.bfq.weight 10
     write /dev/blkio/blkio.group_idle 0
     write /dev/blkio/background/blkio.group_idle 0
 
@@ -470,6 +471,9 @@
     chmod 0664 /sys/module/lowmemorykiller/parameters/minfree
     start lmkd
 
+    # Set an initial boot level - start at 10 in case we need to add earlier ones.
+    setprop keystore.boot_level 10
+
     # Start essential services.
     start servicemanager
     start hwservicemanager
diff --git a/trusty/apploader/apploader.cpp b/trusty/apploader/apploader.cpp
index 5d5d882..8ab6303 100644
--- a/trusty/apploader/apploader.cpp
+++ b/trusty/apploader/apploader.cpp
@@ -43,7 +43,7 @@
 
 static const char* dev_name = kTrustyDefaultDeviceName;
 
-static const char* _sopts = "hs";
+static const char* _sopts = "hD:";
 static const struct option _lopts[] = {
         {"help", no_argument, 0, 'h'},
         {"dev", required_argument, 0, 'D'},
diff --git a/trusty/confirmationui/TrustyApp.cpp b/trusty/confirmationui/TrustyApp.cpp
index 1e70a5e..cee8655 100644
--- a/trusty/confirmationui/TrustyApp.cpp
+++ b/trusty/confirmationui/TrustyApp.cpp
@@ -15,7 +15,6 @@
  */
 
 #include "TrustyApp.h"
-#include "TrustyIpc.h"
 
 #include <BufferAllocator/BufferAllocator.h>
 #include <android-base/logging.h>
@@ -27,6 +26,7 @@
 
 namespace android {
 namespace trusty {
+namespace confirmationui {
 
 using ::android::base::unique_fd;
 
@@ -162,5 +162,6 @@
     LOG(INFO) << "Done shutting down TrustyApp";
 }
 
+}  // namespace confirmationui
 }  // namespace trusty
 }  // namespace android
diff --git a/trusty/confirmationui/TrustyApp.h b/trusty/confirmationui/TrustyApp.h
index 406f439..fb57828 100644
--- a/trusty/confirmationui/TrustyApp.h
+++ b/trusty/confirmationui/TrustyApp.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include "TrustyIpc.h"
+#include <TrustyIpc.h>
 
 #include <android-base/logging.h>
 #include <android-base/unique_fd.h>
@@ -41,6 +41,7 @@
 
 namespace android {
 namespace trusty {
+namespace confirmationui {
 
 using ::teeui::Message;
 using ::teeui::msg2tuple_t;
@@ -148,5 +149,6 @@
     operator bool() const { return handle_ != kInvalidHandle; }
 };
 
+}  // namespace confirmationui
 }  // namespace trusty
 }  // namespace android
diff --git a/trusty/confirmationui/TrustyConfirmationUI.cpp b/trusty/confirmationui/TrustyConfirmationUI.cpp
index c8b24e3..c6625e0 100644
--- a/trusty/confirmationui/TrustyConfirmationUI.cpp
+++ b/trusty/confirmationui/TrustyConfirmationUI.cpp
@@ -50,7 +50,7 @@
 
 using namespace secure_input;
 
-using ::android::trusty::TrustyAppError;
+using ::android::trusty::confirmationui::TrustyAppError;
 
 using ::teeui::AbortMsg;
 using ::teeui::DeliverTestCommandMessage;
diff --git a/trusty/confirmationui/TrustyConfirmationUI.h b/trusty/confirmationui/TrustyConfirmationUI.h
index 3a7c7ef..0bd703c 100644
--- a/trusty/confirmationui/TrustyConfirmationUI.h
+++ b/trusty/confirmationui/TrustyConfirmationUI.h
@@ -43,7 +43,7 @@
 using ::android::hardware::Return;
 using ::android::hardware::Void;
 
-using ::android::trusty::TrustyApp;
+using ::android::trusty::confirmationui::TrustyApp;
 
 class TrustyConfirmationUI : public IConfirmationUI {
   public:
diff --git a/trusty/confirmationui/TrustyIpc.h b/trusty/confirmationui/include/TrustyIpc.h
similarity index 100%
rename from trusty/confirmationui/TrustyIpc.h
rename to trusty/confirmationui/include/TrustyIpc.h
diff --git a/trusty/coverage/Android.bp b/trusty/coverage/Android.bp
index c71d599..0453f3f 100644
--- a/trusty/coverage/Android.bp
+++ b/trusty/coverage/Android.bp
@@ -21,12 +21,14 @@
     vendor_available: true,
     srcs: [
         "coverage.cpp",
+        "uuid.cpp",
     ],
     export_include_dirs: [
         "include",
     ],
     shared_libs: [
         "libbase",
+        "libext2_uuid",
         "liblog",
         "libdmabufheap",
         "libtrusty",
diff --git a/trusty/coverage/include/trusty/coverage/tipc.h b/trusty/coverage/include/trusty/coverage/tipc.h
index c4157c4..386b2bb 100644
--- a/trusty/coverage/include/trusty/coverage/tipc.h
+++ b/trusty/coverage/include/trusty/coverage/tipc.h
@@ -19,16 +19,10 @@
 #pragma once
 
 #include <stdint.h>
+#include <trusty/coverage/uuid.h>
 
 #define COVERAGE_CLIENT_PORT "com.android.trusty.coverage.client"
 
-struct uuid {
-    uint32_t time_low;
-    uint16_t time_mid;
-    uint16_t time_hi_and_version;
-    uint8_t clock_seq_and_node[8];
-};
-
 enum coverage_client_cmd {
     COVERAGE_CLIENT_CMD_RESP_BIT = 1U,
     COVERAGE_CLIENT_CMD_SHIFT = 1U,
diff --git a/trusty/coverage/include/trusty/coverage/uuid.h b/trusty/coverage/include/trusty/coverage/uuid.h
new file mode 100644
index 0000000..c77d275
--- /dev/null
+++ b/trusty/coverage/include/trusty/coverage/uuid.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+struct uuid {
+    uint32_t time_low;
+    uint16_t time_mid;
+    uint16_t time_hi_and_version;
+    uint8_t clock_seq_and_node[8];
+};
+
+/**
+ * str_to_uuid() - Converts a C string into a uuid
+ * @str: C-string representation of the uuid
+ * @uuid: &struct uuid to fill with the converted uuid
+ *
+ * Return: true on success, false otherwise
+ */
+bool str_to_uuid(const char* str, struct uuid* uuid);
diff --git a/trusty/coverage/uuid.cpp b/trusty/coverage/uuid.cpp
new file mode 100644
index 0000000..f0a6c0e
--- /dev/null
+++ b/trusty/coverage/uuid.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2021 The Android Open Sourete Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+#include <trusty/coverage/uuid.h>
+#include <uuid.h>
+
+#include <stdio.h>
+
+static uint16_t reverse_u16(uint16_t u) {
+    return u << 8 | u >> 8;
+}
+
+static uint32_t reverse_u32(uint32_t u) {
+    return reverse_u16((uint16_t)u) << 16 | reverse_u16(u >> 16);
+}
+
+bool str_to_uuid(const char* str, struct uuid* uuid) {
+    uuid_t uu;
+    static_assert(sizeof(uu) == sizeof(*uuid));
+
+    if (uuid_parse(str, uu)) {
+        return false;
+    }
+
+    memcpy(uuid, uu, sizeof(*uuid));
+    uuid->time_low = reverse_u32(uuid->time_low);
+    uuid->time_mid = reverse_u16(uuid->time_mid);
+    uuid->time_hi_and_version = reverse_u16(uuid->time_hi_and_version);
+    return true;
+}
diff --git a/trusty/fuzz/Android.bp b/trusty/fuzz/Android.bp
index 99156f4..d147767 100644
--- a/trusty/fuzz/Android.bp
+++ b/trusty/fuzz/Android.bp
@@ -52,3 +52,12 @@
         "libtrusty",
     ],
 }
+
+// Generic TIPC fuzzer, must parameterized using:
+//  -DTRUSTY_APP_PORT=<port name of TA being fuzzed>
+//  -DTRUSTY_APP_UUID=<UUID of TA being fuzzed>
+//  -DTRUSTY_APP_FILENAME=<name of symbolized elf binary of the TA>
+filegroup {
+    name: "trusty_tipc_fuzzer",
+    srcs: ["tipc_fuzzer.cpp"],
+}
diff --git a/trusty/fuzz/counters.cpp b/trusty/fuzz/counters.cpp
index 4d34059..c28fd05 100644
--- a/trusty/fuzz/counters.cpp
+++ b/trusty/fuzz/counters.cpp
@@ -33,7 +33,7 @@
  * We don't know how many counters the coverage record will contain. So, eyeball
  * the size of this section.
  */
-static const size_t kMaxNumCounters = 0x4000;
+static const size_t kMaxNumCounters = 0x8000;
 __attribute__((section("__libfuzzer_extra_counters"))) volatile uint8_t counters[kMaxNumCounters];
 
 namespace android {
diff --git a/trusty/fuzz/test/Android.bp b/trusty/fuzz/test/Android.bp
index 932121a..7d74913 100644
--- a/trusty/fuzz/test/Android.bp
+++ b/trusty/fuzz/test/Android.bp
@@ -19,5 +19,10 @@
 cc_fuzz {
     name: "trusty_test_fuzzer",
     defaults: ["trusty_fuzzer_defaults"],
-    srcs: ["fuzz.cpp"],
+    srcs: [":trusty_tipc_fuzzer"],
+    cflags: [
+        "-DTRUSTY_APP_PORT=\"com.android.trusty.sancov.test.srv\"",
+        "-DTRUSTY_APP_UUID=\"77f68803-c514-43ba-bdce-3254531c3d24\"",
+        "-DTRUSTY_APP_FILENAME=\"srv.syms.elf\"",
+    ]
 }
diff --git a/trusty/fuzz/test/fuzz.cpp b/trusty/fuzz/test/fuzz.cpp
deleted file mode 100644
index e7913db..0000000
--- a/trusty/fuzz/test/fuzz.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <trusty/coverage/coverage.h>
-#include <trusty/fuzz/counters.h>
-#include <trusty/fuzz/utils.h>
-#include <unistd.h>
-#include <iostream>
-
-using android::trusty::coverage::CoverageRecord;
-using android::trusty::fuzz::ExtraCounters;
-using android::trusty::fuzz::TrustyApp;
-
-#define TIPC_DEV "/dev/trusty-ipc-dev0"
-#define TEST_SRV_PORT "com.android.trusty.sancov.test.srv"
-
-/* Test server's UUID is 77f68803-c514-43ba-bdce-3254531c3d24 */
-static struct uuid test_srv_uuid = {
-        0x77f68803,
-        0xc514,
-        0x43ba,
-        {0xbd, 0xce, 0x32, 0x54, 0x53, 0x1c, 0x3d, 0x24},
-};
-
-static CoverageRecord record(TIPC_DEV, &test_srv_uuid);
-
-extern "C" int LLVMFuzzerInitialize(int* /* argc */, char*** /* argv */) {
-    auto ret = record.Open();
-    if (!ret.ok()) {
-        std::cerr << ret.error() << std::endl;
-        exit(-1);
-    }
-    return 0;
-}
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
-    static uint8_t buf[TIPC_MAX_MSG_SIZE];
-
-    ExtraCounters counters(&record);
-    counters.Reset();
-
-    TrustyApp ta(TIPC_DEV, TEST_SRV_PORT);
-    auto ret = ta.Connect();
-    if (!ret.ok()) {
-        android::trusty::fuzz::Abort();
-    }
-
-    /* Send message to test server */
-    ret = ta.Write(data, size);
-    if (!ret.ok()) {
-        return -1;
-    }
-
-    /* Read message from test server */
-    ret = ta.Read(&buf, sizeof(buf));
-    if (!ret.ok()) {
-        return -1;
-    }
-
-    return 0;
-}
diff --git a/trusty/fuzz/tipc_fuzzer.cpp b/trusty/fuzz/tipc_fuzzer.cpp
new file mode 100644
index 0000000..24b0f98
--- /dev/null
+++ b/trusty/fuzz/tipc_fuzzer.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <trusty/coverage/coverage.h>
+#include <trusty/coverage/uuid.h>
+#include <trusty/fuzz/counters.h>
+#include <trusty/fuzz/utils.h>
+#include <unistd.h>
+#include <iostream>
+#include <memory>
+
+using android::trusty::coverage::CoverageRecord;
+using android::trusty::fuzz::ExtraCounters;
+using android::trusty::fuzz::TrustyApp;
+
+#define TIPC_DEV "/dev/trusty-ipc-dev0"
+
+#ifndef TRUSTY_APP_PORT
+#error "Port name must be parameterized using -DTRUSTY_APP_PORT."
+#endif
+
+#ifndef TRUSTY_APP_UUID
+#error "UUID must be parameterized using -DTRUSTY_APP_UUID."
+#endif
+
+#ifndef TRUSTY_APP_FILENAME
+#error "Binary file name must be parameterized using -DTRUSTY_APP_FILENAME."
+#endif
+
+static std::unique_ptr<CoverageRecord> record;
+
+extern "C" int LLVMFuzzerInitialize(int* /* argc */, char*** /* argv */) {
+    uuid module_uuid;
+
+    if (!str_to_uuid(TRUSTY_APP_UUID, &module_uuid)) {
+        std::cerr << "Failed to parse UUID: " << TRUSTY_APP_UUID << std::endl;
+        exit(-1);
+    }
+
+    record = std::make_unique<CoverageRecord>(TIPC_DEV, &module_uuid, TRUSTY_APP_FILENAME);
+    if (!record) {
+        std::cerr << "Failed to allocate coverage record" << std::endl;
+        exit(-1);
+    }
+
+    auto ret = record->Open();
+    if (!ret.ok()) {
+        std::cerr << ret.error() << std::endl;
+        exit(-1);
+    }
+    return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+    static uint8_t buf[TIPC_MAX_MSG_SIZE];
+
+    ExtraCounters counters(record.get());
+    counters.Reset();
+
+    TrustyApp ta(TIPC_DEV, TRUSTY_APP_PORT);
+    auto ret = ta.Connect();
+    if (!ret.ok()) {
+        std::cerr << ret.error() << std::endl;
+        android::trusty::fuzz::Abort();
+    }
+
+    ret = ta.Write(data, size);
+    if (!ret.ok()) {
+        return -1;
+    }
+
+    ret = ta.Read(&buf, sizeof(buf));
+    if (!ret.ok()) {
+        return -1;
+    }
+
+    return 0;
+}
diff --git a/trusty/gatekeeper/fuzz/Android.bp b/trusty/gatekeeper/fuzz/Android.bp
index 6ff68b6..d084cb6 100644
--- a/trusty/gatekeeper/fuzz/Android.bp
+++ b/trusty/gatekeeper/fuzz/Android.bp
@@ -19,7 +19,12 @@
 cc_fuzz {
     name: "trusty_gatekeeper_fuzzer",
     defaults: ["trusty_fuzzer_defaults"],
-    srcs: ["fuzz.cpp"],
+    srcs: [":trusty_tipc_fuzzer"],
+    cflags: [
+        "-DTRUSTY_APP_PORT=\"com.android.trusty.gatekeeper\"",
+        "-DTRUSTY_APP_UUID=\"38ba0cdc-df0e-11e4-9869-233fb6ae4795\"",
+        "-DTRUSTY_APP_FILENAME=\"gatekeeper.syms.elf\"",
+    ],
 
     // The initial corpus for this fuzzer was derived by dumping messages from
     // the `secure_env` emulator interface for cuttlefish while enrolling a new
diff --git a/trusty/gatekeeper/fuzz/fuzz.cpp b/trusty/gatekeeper/fuzz/fuzz.cpp
deleted file mode 100644
index 7bfd7d1..0000000
--- a/trusty/gatekeeper/fuzz/fuzz.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <trusty/coverage/coverage.h>
-#include <trusty/fuzz/counters.h>
-#include <trusty/fuzz/utils.h>
-#include <unistd.h>
-#include <iostream>
-
-using android::trusty::coverage::CoverageRecord;
-using android::trusty::fuzz::ExtraCounters;
-using android::trusty::fuzz::TrustyApp;
-
-#define TIPC_DEV "/dev/trusty-ipc-dev0"
-#define GATEKEEPER_PORT "com.android.trusty.gatekeeper"
-#define GATEKEEPER_MODULE_NAME "gatekeeper.syms.elf"
-
-/* Gatekeeper TA's UUID is 38ba0cdc-df0e-11e4-9869-233fb6ae4795 */
-static struct uuid gatekeeper_uuid = {
-        0x38ba0cdc,
-        0xdf0e,
-        0x11e4,
-        {0x98, 0x69, 0x23, 0x3f, 0xb6, 0xae, 0x47, 0x95},
-};
-
-static CoverageRecord record(TIPC_DEV, &gatekeeper_uuid, GATEKEEPER_MODULE_NAME);
-
-extern "C" int LLVMFuzzerInitialize(int* /* argc */, char*** /* argv */) {
-    auto ret = record.Open();
-    if (!ret.ok()) {
-        std::cerr << ret.error() << std::endl;
-        exit(-1);
-    }
-    return 0;
-}
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
-    static uint8_t buf[TIPC_MAX_MSG_SIZE];
-
-    ExtraCounters counters(&record);
-    counters.Reset();
-
-    android::trusty::fuzz::TrustyApp ta(TIPC_DEV, GATEKEEPER_PORT);
-    auto ret = ta.Connect();
-    if (!ret.ok()) {
-        android::trusty::fuzz::Abort();
-    }
-
-    /* Send message to test server */
-    ret = ta.Write(data, size);
-    if (!ret.ok()) {
-        return -1;
-    }
-
-    /* Read message from test server */
-    ret = ta.Read(&buf, sizeof(buf));
-    if (!ret.ok()) {
-        return -1;
-    }
-
-    return 0;
-}
diff --git a/trusty/keymaster/fuzz/Android.bp b/trusty/keymaster/fuzz/Android.bp
index 93dc4eb..8d7ee00 100644
--- a/trusty/keymaster/fuzz/Android.bp
+++ b/trusty/keymaster/fuzz/Android.bp
@@ -19,5 +19,15 @@
 cc_fuzz {
     name: "trusty_keymaster_fuzzer",
     defaults: ["trusty_fuzzer_defaults"],
-    srcs: ["fuzz.cpp"],
+    srcs: [":trusty_tipc_fuzzer"],
+    cflags: [
+        "-DTRUSTY_APP_PORT=\"com.android.trusty.keymaster\"",
+        "-DTRUSTY_APP_UUID=\"5f902ace-5e5c-4cd8-ae54-87b88c22ddaf\"",
+        "-DTRUSTY_APP_FILENAME=\"keymaster.syms.elf\"",
+    ],
+
+    // The initial corpus for this fuzzer was derived by dumping messages from
+    // the `secure_env` emulator interface for cuttlefish while running the
+    // keystore2 tests in the emulator.
+    corpus: ["corpus/*"],
 }
diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-1x0hJ5 b/trusty/keymaster/fuzz/corpus/keymaster-recv-1x0hJ5
new file mode 100644
index 0000000..4a292c1
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-1x0hJ5
Binary files differ
diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-5GV6mx b/trusty/keymaster/fuzz/corpus/keymaster-recv-5GV6mx
new file mode 100644
index 0000000..60301f6
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-5GV6mx
Binary files differ
diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-7RVbJ8 b/trusty/keymaster/fuzz/corpus/keymaster-recv-7RVbJ8
new file mode 100644
index 0000000..9ed8279
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-7RVbJ8
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-9ElJHi b/trusty/keymaster/fuzz/corpus/keymaster-recv-9ElJHi
new file mode 100644
index 0000000..69caf33
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-9ElJHi
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-9czLCR b/trusty/keymaster/fuzz/corpus/keymaster-recv-9czLCR
new file mode 100644
index 0000000..e9d7daf
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-9czLCR
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-BFx3FN b/trusty/keymaster/fuzz/corpus/keymaster-recv-BFx3FN
new file mode 100644
index 0000000..3ce16c3
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-BFx3FN
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-BXWpRA b/trusty/keymaster/fuzz/corpus/keymaster-recv-BXWpRA
new file mode 100644
index 0000000..c290b52
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-BXWpRA
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-DanwgH b/trusty/keymaster/fuzz/corpus/keymaster-recv-DanwgH
new file mode 100644
index 0000000..b1fb022
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-DanwgH
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-JP2pXq b/trusty/keymaster/fuzz/corpus/keymaster-recv-JP2pXq
new file mode 100644
index 0000000..2f9abcf
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-JP2pXq
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-T0YO5T b/trusty/keymaster/fuzz/corpus/keymaster-recv-T0YO5T
new file mode 100644
index 0000000..9ed8279
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-T0YO5T
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-TM26dO b/trusty/keymaster/fuzz/corpus/keymaster-recv-TM26dO
new file mode 100644
index 0000000..ec374e3
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-TM26dO
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-XcPQ60 b/trusty/keymaster/fuzz/corpus/keymaster-recv-XcPQ60
new file mode 100644
index 0000000..3ce16c3
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-XcPQ60
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-ZU4x5D b/trusty/keymaster/fuzz/corpus/keymaster-recv-ZU4x5D
new file mode 100644
index 0000000..1641d95
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-ZU4x5D
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-Zbzv1t b/trusty/keymaster/fuzz/corpus/keymaster-recv-Zbzv1t
new file mode 100644
index 0000000..96b965e
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-Zbzv1t
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-ZvweQK b/trusty/keymaster/fuzz/corpus/keymaster-recv-ZvweQK
new file mode 100644
index 0000000..e3a04ae
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-ZvweQK
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-d3OcR1 b/trusty/keymaster/fuzz/corpus/keymaster-recv-d3OcR1
new file mode 100644
index 0000000..920c5ed
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-d3OcR1
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-dc6Hmg b/trusty/keymaster/fuzz/corpus/keymaster-recv-dc6Hmg
new file mode 100644
index 0000000..49453d4
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-dc6Hmg
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-fn8Ksu b/trusty/keymaster/fuzz/corpus/keymaster-recv-fn8Ksu
new file mode 100644
index 0000000..b0408c6
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-fn8Ksu
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-ldnX1U b/trusty/keymaster/fuzz/corpus/keymaster-recv-ldnX1U
new file mode 100644
index 0000000..8d77e0e
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-ldnX1U
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-pqvh4n b/trusty/keymaster/fuzz/corpus/keymaster-recv-pqvh4n
new file mode 100644
index 0000000..8ac5b90
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-pqvh4n
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-pvwjne b/trusty/keymaster/fuzz/corpus/keymaster-recv-pvwjne
new file mode 100644
index 0000000..22d5232
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-pvwjne
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-pzxe39 b/trusty/keymaster/fuzz/corpus/keymaster-recv-pzxe39
new file mode 100644
index 0000000..8e955c1
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-pzxe39
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-tpykrY b/trusty/keymaster/fuzz/corpus/keymaster-recv-tpykrY
new file mode 100644
index 0000000..16d2121
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-tpykrY
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-tq6MsH b/trusty/keymaster/fuzz/corpus/keymaster-recv-tq6MsH
new file mode 100644
index 0000000..d5d7f02
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-tq6MsH
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-recv-zt2UIA b/trusty/keymaster/fuzz/corpus/keymaster-recv-zt2UIA
new file mode 100644
index 0000000..23c3ce8
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-recv-zt2UIA
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-3aKtgr b/trusty/keymaster/fuzz/corpus/keymaster-send-3aKtgr
new file mode 100644
index 0000000..bfee18a
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-3aKtgr
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-5Ays9I b/trusty/keymaster/fuzz/corpus/keymaster-send-5Ays9I
new file mode 100644
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--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-5Ays9I
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-7X098Z b/trusty/keymaster/fuzz/corpus/keymaster-send-7X098Z
new file mode 100644
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--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-7X098Z
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-B6LYU4 b/trusty/keymaster/fuzz/corpus/keymaster-send-B6LYU4
new file mode 100644
index 0000000..e841836
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-B6LYU4
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new file mode 100644
index 0000000..72ba6c4
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-BZU7LF
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-FxXsxg b/trusty/keymaster/fuzz/corpus/keymaster-send-FxXsxg
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--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-FxXsxg
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-NlxYoC b/trusty/keymaster/fuzz/corpus/keymaster-send-NlxYoC
new file mode 100644
index 0000000..992e3f5
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-NlxYoC
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-PzXetK b/trusty/keymaster/fuzz/corpus/keymaster-send-PzXetK
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index 0000000..18506f2
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-PzXetK
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new file mode 100644
index 0000000..6845257
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-RFmR3D
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new file mode 100644
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--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-Tp6AJW
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new file mode 100644
index 0000000..79512e4
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-V0leT7
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-X4Plz3 b/trusty/keymaster/fuzz/corpus/keymaster-send-X4Plz3
new file mode 100644
index 0000000..1423e64
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-X4Plz3
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-Xd5KiX b/trusty/keymaster/fuzz/corpus/keymaster-send-Xd5KiX
new file mode 100644
index 0000000..18506f2
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-Xd5KiX
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-Ztr5Rk b/trusty/keymaster/fuzz/corpus/keymaster-send-Ztr5Rk
new file mode 100644
index 0000000..9af5af3
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-Ztr5Rk
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-f6d6wM b/trusty/keymaster/fuzz/corpus/keymaster-send-f6d6wM
new file mode 100644
index 0000000..e8f79be
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-f6d6wM
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-jbzgHv b/trusty/keymaster/fuzz/corpus/keymaster-send-jbzgHv
new file mode 100644
index 0000000..3ee5434
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-jbzgHv
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-jiL5yp b/trusty/keymaster/fuzz/corpus/keymaster-send-jiL5yp
new file mode 100644
index 0000000..90beb99
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-jiL5yp
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-l5kqxc b/trusty/keymaster/fuzz/corpus/keymaster-send-l5kqxc
new file mode 100644
index 0000000..b2f606d
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-l5kqxc
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-l6zX2y b/trusty/keymaster/fuzz/corpus/keymaster-send-l6zX2y
new file mode 100644
index 0000000..77705e7
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-l6zX2y
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-ltPKls b/trusty/keymaster/fuzz/corpus/keymaster-send-ltPKls
new file mode 100644
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--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-ltPKls
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-n7sdVP b/trusty/keymaster/fuzz/corpus/keymaster-send-n7sdVP
new file mode 100644
index 0000000..054a7ed
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-n7sdVP
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-pKSjkT b/trusty/keymaster/fuzz/corpus/keymaster-send-pKSjkT
new file mode 100644
index 0000000..3ed7246
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-pKSjkT
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-rhVedc b/trusty/keymaster/fuzz/corpus/keymaster-send-rhVedc
new file mode 100644
index 0000000..bd545f1
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-rhVedc
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-tZJ2Ex b/trusty/keymaster/fuzz/corpus/keymaster-send-tZJ2Ex
new file mode 100644
index 0000000..72ee499
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-tZJ2Ex
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diff --git a/trusty/keymaster/fuzz/corpus/keymaster-send-tZlTSQ b/trusty/keymaster/fuzz/corpus/keymaster-send-tZlTSQ
new file mode 100644
index 0000000..e841836
--- /dev/null
+++ b/trusty/keymaster/fuzz/corpus/keymaster-send-tZlTSQ
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diff --git a/trusty/keymaster/fuzz/fuzz.cpp b/trusty/keymaster/fuzz/fuzz.cpp
deleted file mode 100644
index 4ac97bb..0000000
--- a/trusty/keymaster/fuzz/fuzz.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <trusty/coverage/coverage.h>
-#include <trusty/fuzz/counters.h>
-#include <trusty/fuzz/utils.h>
-#include <unistd.h>
-#include <iostream>
-
-using android::trusty::coverage::CoverageRecord;
-using android::trusty::fuzz::ExtraCounters;
-using android::trusty::fuzz::TrustyApp;
-
-#define TIPC_DEV "/dev/trusty-ipc-dev0"
-#define KEYMASTER_PORT "com.android.trusty.keymaster"
-#define KEYMASTER_MODULE_FILENAME "keymaster.syms.elf"
-
-/* Keymaster TA's UUID is 5f902ace-5e5c-4cd8-ae54-87b88c22ddaf */
-static struct uuid keymaster_uuid = {
-        0x5f902ace,
-        0x5e5c,
-        0x4cd8,
-        {0xae, 0x54, 0x87, 0xb8, 0x8c, 0x22, 0xdd, 0xaf},
-};
-
-static CoverageRecord record(TIPC_DEV, &keymaster_uuid, KEYMASTER_MODULE_FILENAME);
-
-extern "C" int LLVMFuzzerInitialize(int* /* argc */, char*** /* argv */) {
-    auto ret = record.Open();
-    if (!ret.ok()) {
-        std::cerr << ret.error() << std::endl;
-        exit(-1);
-    }
-    return 0;
-}
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
-    static uint8_t buf[TIPC_MAX_MSG_SIZE];
-
-    ExtraCounters counters(&record);
-    counters.Reset();
-
-    android::trusty::fuzz::TrustyApp ta(TIPC_DEV, KEYMASTER_PORT);
-    auto ret = ta.Connect();
-    if (!ret.ok()) {
-        android::trusty::fuzz::Abort();
-    }
-
-    /* Send message to test server */
-    ret = ta.Write(data, size);
-    if (!ret.ok()) {
-        return -1;
-    }
-
-    /* Read message from test server */
-    ret = ta.Read(&buf, sizeof(buf));
-    if (!ret.ok()) {
-        return -1;
-    }
-
-    return 0;
-}