exo2: fix bugs in non-core0 bootup

exosphere2/program/source/secmon_setup.cpp

@@ -1018,7 +1018,7 @@ namespace ams::secmon {
         constexpr u32 ResetVectorHigh = static_cast<u32>((PhysicalTzramProgramResetVector >> BITSIZEOF(u32)));
 
         /* Write our reset vector to the secure boot registers. */
-        reg::Write(secmon::MemoryRegionVirtualDeviceSystem.GetAddress() + SB_AA64_RESET_LOW,  ResetVectorLow);
+        reg::Write(secmon::MemoryRegionVirtualDeviceSystem.GetAddress() + SB_AA64_RESET_LOW,  ResetVectorLow | 1);
         reg::Write(secmon::MemoryRegionVirtualDeviceSystem.GetAddress() + SB_AA64_RESET_HIGH, ResetVectorHigh);
 
         /* Disable non-secure writes to the reset vector. */

exosphere2/program/source/secmon_start_virtual.s

@@ -59,6 +59,9 @@ _ZN3ams6secmon20StartWarmbootVirtualEv:
     ldr x20, =0x1F01F67C0
     mov sp, x20
 
+    /* Setup X18 to point to the global context. */
+    ldr  x18, =0x1F01FA000
+
     /* Perform final warmboot setup. */
     bl _ZN3ams6secmon24SetupSocSecurityWarmbootEv