kern: refactor init (kill identity map, merge cpu on logic)

2023-02-21 10:38:48 -07:00
parent 42e6c1fd59
commit 709e1969bb
20 changed files with 431 additions and 387 deletions
--- a/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_cpu.hpp
+++ b/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_cpu.hpp
@@ -189,6 +189,14 @@ namespace ams::kern::arch::arm64::cpu {
        return (par >> (BITSIZEOF(par) - BITSIZEOF(u8))) == 0xFF;
    }

+    ALWAYS_INLINE void StoreDataCacheForInitArguments(const void *addr, size_t size) {
+        const uintptr_t start = util::AlignDown(reinterpret_cast<uintptr_t>(addr), DataCacheLineSize);
+        for (size_t stored = 0; stored < size; stored += cpu::DataCacheLineSize) {
+            __asm__ __volatile__("dc cvac, %[cur]" :: [cur]"r"(start + stored) : "memory");
+        }
+        DataSynchronizationBarrier();
+    }
+
    /* Synchronization helpers. */
    NOINLINE void SynchronizeAllCores();
    void SynchronizeCores(u64 core_mask);