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feature: add apple silicon native macOS support (#81)

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* feature: add apple silicon native macOS support - #81

* (macos): Fix crash

This fixes a crash when viewing the rear camera

* fix(macos): keep interpolated presentation on main thread

* fix(macos): supply Retro-WFC payload during setup

* perf(windows): compile out flat-memory fallback check

* remove duplicate smoke test

* test(macos): name and focus host platform tests

* fix(macos): validate Retro-WFC payload cache

* fix(payload): preserve staged file access failures

* Limit flat-page checks to variable-page hosts

---------

Co-authored-by: patchzyy <64382339+patchzyy@users.noreply.github.com>
This commit is contained in:
Michael G
2026-09-01 12:57:15 -04:00
committed by GitHub
parent ae3096c89b
commit 5c76e2b0df
36 changed files with 1742 additions and 251 deletions
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runtime/src/guest_flat_memory.cpp
+21 -4
View File
@@ -36,6 +36,9 @@
#endif
namespace GuestFlat {
#if !defined(MKW_GUEST_FLAT_FIXED_PAGE_SIZE)
bool g_requiresCheckedAccess = false;
#endif
namespace {
#if defined(_WIN32)
@@ -48,6 +51,16 @@ constexpr DWORD kMemPreservePlaceholder = 0x00000002;
constexpr size_t kAllocationGranularity = 0x10000; // 64 KiB
constexpr size_t kHostPageSize = 0x1000;
// Only hosts that can expose a page larger than 4 KiB need to discover their
// size at runtime; see RequiresCheckedAccess() in guest_flat_memory.h.
#if !defined(MKW_GUEST_FLAT_FIXED_PAGE_SIZE)
size_t HostPageSize()
{
const long size = sysconf(_SC_PAGESIZE);
return size > 0 ? static_cast<size_t>(size) : kGuestPageSize;
}
#endif
// Named, platform-neutral protection modes so every fault-interception call site below (the
// MMIO window, the executable-write guard, deferred-EFB-read protection, the on-demand
// unmapped-block commit) can stay identical text on both platforms; only ProtectRange() and
@@ -349,7 +362,7 @@ bool IsMmio(uint32_t address) { return MemoryInline::IsMmioAddress(address); }
bool IsGpuFifo(uint32_t address) { return MemoryInline::IsGpuFifoAddress(address); }
void ApplyExecutableProtectionLocked() {
if (g_base == nullptr) return;
if (g_base == nullptr || RequiresCheckedAccess()) return;
auto& protectedPages = ExecutableProtectedPages();
for (const auto& range : ExecutableRanges()) {
// Only pages fully inside the range are protected: edge pages often share a page with data
@@ -497,6 +510,10 @@ bool IsActive() {
void Initialize(const std::vector<RegionRequest>& regions) {
std::lock_guard<std::mutex> lock(StateMutex());
#if !defined(MKW_GUEST_FLAT_FIXED_PAGE_SIZE)
g_requiresCheckedAccess = HostPageSize() > kGuestPageSize;
#endif
if (g_initialized) {
if (!SameLayout(g_activeRegions, regions)) {
throw std::runtime_error(
@@ -615,7 +632,7 @@ uint8_t* HostPointer(uint32_t guestAddress) {
}
void ProtectDeferredRange(uint32_t address, size_t length) {
if (!g_initialized || length == 0) return;
if (RequiresCheckedAccess() || !g_initialized || length == 0) return;
const uint64_t end = static_cast<uint64_t>(address) + length;
if (end > kGuestSpaceSize) return;
std::lock_guard<std::mutex> lock(StateMutex());
@@ -630,7 +647,7 @@ void ProtectDeferredRange(uint32_t address, size_t length) {
}
void UnprotectDeferredRange(uint32_t address, size_t length) {
if (!g_initialized || length == 0) return;
if (RequiresCheckedAccess() || !g_initialized || length == 0) return;
std::lock_guard<std::mutex> lock(StateMutex());
auto& ranges = DeferredRanges();
const uint64_t end = static_cast<uint64_t>(address) + length;
@@ -645,7 +662,7 @@ void UnprotectDeferredRange(uint32_t address, size_t length) {
}
void RegisterExecutableRange(uint32_t start, uint32_t end) {
if (end <= start) return;
if (RequiresCheckedAccess() || end <= start) return;
std::lock_guard<std::mutex> lock(StateMutex());
auto& ranges = ExecutableRanges();
if (std::any_of(ranges.begin(), ranges.end(), [&](const GuardedRange& range) {