OmniNX/Atmosphere-Pro
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kern: add minimum alignment support to KMemoryManager

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Michael Scire authored and SciresM committed 2024-10-15 21:48:59 -07:00
1 parent ff38a32a9b
commit 912b84c4e3
7 files changed
+58 -16
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libraries/libmesosphere/source/svc/kern_svc_physical_memory.cpp
+10 -8
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@@ -48,10 +48,11 @@ namespace ams::kern::svc {
Result MapPhysicalMemory(uintptr_t address, size_t size) {
/* Validate address / size. */
R_UNLESS(util::IsAligned(address, PageSize), svc::ResultInvalidAddress());
R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize());
R_UNLESS(size > 0, svc::ResultInvalidSize());
R_UNLESS((address < address + size), svc::ResultInvalidMemoryRegion());
const size_t min_alignment = Kernel::GetMemoryManager().GetMinimumAlignment(GetCurrentProcess().GetMemoryPool());
R_UNLESS(util::IsAligned(address, min_alignment), svc::ResultInvalidAddress());
R_UNLESS(util::IsAligned(size, min_alignment), svc::ResultInvalidSize());
R_UNLESS(size > 0, svc::ResultInvalidSize());
R_UNLESS((address < address + size), svc::ResultInvalidMemoryRegion());
/* Verify that the process has system resource. */
auto &process = GetCurrentProcess();
@@ -69,10 +70,11 @@ namespace ams::kern::svc {
Result UnmapPhysicalMemory(uintptr_t address, size_t size) {
/* Validate address / size. */
R_UNLESS(util::IsAligned(address, PageSize), svc::ResultInvalidAddress());
R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize());
R_UNLESS(size > 0, svc::ResultInvalidSize());
R_UNLESS((address < address + size), svc::ResultInvalidMemoryRegion());
const size_t min_alignment = Kernel::GetMemoryManager().GetMinimumAlignment(GetCurrentProcess().GetMemoryPool());
R_UNLESS(util::IsAligned(address, min_alignment), svc::ResultInvalidAddress());
R_UNLESS(util::IsAligned(size, min_alignment), svc::ResultInvalidSize());
R_UNLESS(size > 0, svc::ResultInvalidSize());
R_UNLESS((address < address + size), svc::ResultInvalidMemoryRegion());
/* Verify that the process has system resource. */
auto &process = GetCurrentProcess();