kern: load initial process binary from user pool, rather than from pt heap

libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp

@@ -21,7 +21,8 @@ namespace ams::kern::board::nintendo::nx {
 
     namespace {
 
-        constexpr size_t SecureAlignment = 128_KB;
+        constexpr uintptr_t DramPhysicalAddress = 0x80000000;
+        constexpr size_t SecureAlignment        = 128_KB;
 
         /* Global variables for panic. */
         constinit bool g_call_smc_on_panic;
@@ -348,6 +349,10 @@ namespace ams::kern::board::nintendo::nx {
         }
     }
 
+    KPhysicalAddress KSystemControl::Init::GetInitialProcessBinaryPhysicalAddress() {
+        return GetKernelPhysicalBaseAddress(DramPhysicalAddress) + GetIntendedMemorySize() - KTraceBufferSize - InitialProcessBinarySizeMax;
+    }
+
     bool KSystemControl::Init::ShouldIncreaseThreadResourceLimit() {
         return GetKernelConfigurationForInit().Get<smc::KernelConfiguration::IncreaseThreadResourceLimit>();
     }