From 72f671fd7a72d75d6fd697673bee1be18a6dda8b Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Mon, 1 Jan 2018 16:01:06 -0500
Subject: [PATCH] svc: Improve svcGetInfo.

---
 src/core/hle/svc.cpp | 36 +++++++++++++++++++++++++++++-------
 src/core/hle/svc.h   | 40 ++++++++++++----------------------------
 2 files changed, 41 insertions(+), 35 deletions(-)

diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp
index fa6fd9ab1b..6ec151d946 100644
--- a/src/core/hle/svc.cpp
+++ b/src/core/hle/svc.cpp
@@ -194,16 +194,38 @@ static void OutputDebugString(VAddr address, s32 len) {
     LOG_DEBUG(Debug_Emulated, "%.*s", len, string.data());
 }
 
+/// Gets system/memory information for the current process
 static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) {
-    LOG_TRACE(Kernel_SVC, "called, info_id=0x%X, info_sub_id=0x%X, handle=0x%08X", info_id, info_sub_id, handle);
+    LOG_TRACE(Kernel_SVC, "called info_id=0x%X, info_sub_id=0x%X, handle=0x%08X", info_id,
+              info_sub_id, handle);
 
-    if (!handle) {
-        switch (info_id) {
-        case 0xB:
-            *result = 0; // Used for PRNG seed
-            return RESULT_SUCCESS;
-        }
+    auto& vm_manager = Kernel::g_current_process->vm_manager;
+    switch (static_cast<GetInfoType>(info_id)) {
+    case GetInfoType::TotalMemoryUsage:
+        *result = vm_manager.GetTotalMemoryUsage();
+        break;
+    case GetInfoType::TotalHeapUsage:
+        *result = vm_manager.GetTotalHeapUsage();
+        break;
+    case GetInfoType::RandomEntropy:
+        *result = 0;
+        break;
+    case GetInfoType::AddressSpaceBaseAddr:
+        *result = vm_manager.GetAddressSpaceBaseAddr();
+        break;
+    case GetInfoType::AddressSpaceSize:
+        *result = vm_manager.GetAddressSpaceSize();
+        break;
+    case GetInfoType::NewMapRegionBaseAddr:
+        *result = vm_manager.GetNewMapRegionBaseAddr();
+        break;
+    case GetInfoType::NewMapRegionSize:
+        *result = vm_manager.GetNewMapRegionSize();
+        break;
+    default:
+        UNIMPLEMENTED();
     }
+
     return RESULT_SUCCESS;
 }
 
diff --git a/src/core/hle/svc.h b/src/core/hle/svc.h
index 417a1735fa..fd001a38ea 100644
--- a/src/core/hle/svc.h
+++ b/src/core/hle/svc.h
@@ -26,35 +26,19 @@ struct PageInfo {
 
 namespace SVC {
 
-/// Values accepted by svcGetSystemInfo's type parameter.
-enum class SystemInfoType {
-    /**
-     * Reports total used memory for all regions or a specific one, according to the extra
-     * parameter. See `SystemInfoMemUsageRegion`.
-     */
-    REGION_MEMORY_USAGE = 0,
-    /**
-     * Returns the memory usage for certain allocations done internally by the kernel.
-     */
-    KERNEL_ALLOCATED_PAGES = 2,
-    /**
-     * "This returns the total number of processes which were launched directly by the kernel.
-     * For the ARM11 NATIVE_FIRM kernel, this is 5, for processes sm, fs, pm, loader, and pxi."
-     */
-    KERNEL_SPAWNED_PIDS = 26,
-};
-
-/**
- * Accepted by svcGetSystemInfo param with REGION_MEMORY_USAGE type. Selects a region to query
- * memory usage of.
- */
-enum class SystemInfoMemUsageRegion {
-    ALL = 0,
-    APPLICATION = 1,
-    SYSTEM = 2,
-    BASE = 3,
+/// Values accepted by svcGetInfo
+enum class GetInfoType : u64 {
+    // 1.0.0+
+    TotalMemoryUsage = 6,
+    TotalHeapUsage = 7,
+    RandomEntropy = 11,
+    // 2.0.0+
+    AddressSpaceBaseAddr = 12,
+    AddressSpaceSize = 13,
+    NewMapRegionBaseAddr = 14,
+    NewMapRegionSize = 15,
 };
 
 void CallSVC(u32 immediate);
 
-} // namespace
+} // namespace SVC