mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-31 14:58:22 -04:00
Code Issues Projects Releases Packages Wiki Activity

kern: revamp KMemoryRegionType to better encode derivation hierarchies

Browse source
This commit is contained in:
Michael Scire 2020-08-23 13:19:45 -07:00 • committed by SciresM
parent d50c7c5c79
commit 1983f86875
17 changed files with 746 additions and 426 deletions
Download patch file Download diff file Expand all files Collapse all files

13
mesosphere/kernel/source/arch/arm64/init/kern_init_core.cpp
View file

@ -170,8 +170,13 @@ namespace ams::kern::init {
/* Automatically map in devices that have auto-map attributes. */
for (auto &region : KMemoryLayout::GetPhysicalMemoryRegionTree()) {
/* We only care about automatically-mapped regions. */
if (!region.IsDerivedFrom(KMemoryRegionType_KernelAutoMap)) {
/* We only care about kernel regions. */
if (!region.IsDerivedFrom(KMemoryRegionType_Kernel)) {
continue;
}
/* Check whether we should map the region. */
if (!region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
continue;
}
@ -301,11 +306,11 @@ namespace ams::kern::init {
/* Insert regions for the initial page table region. */
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(resource_end_phys_addr), init_page_table_region_size, KMemoryRegionType_DramKernelInitPt));
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(resource_end_phys_addr) + linear_region_phys_to_virt_diff, init_page_table_region_size, KMemoryRegionType_VirtualKernelInitPt));
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(resource_end_phys_addr) + linear_region_phys_to_virt_diff, init_page_table_region_size, KMemoryRegionType_VirtualDramKernelInitPt));
/* All linear-mapped DRAM regions that we haven't tagged by this point will be allocated to some pool partition. Tag them. */
for (auto &region : KMemoryLayout::GetPhysicalMemoryRegionTree()) {
if (region.GetType() == KMemoryRegionType_DramLinearMapped) {
if (region.GetType() == KMemoryRegionType_Dram && region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
region.SetType(KMemoryRegionType_DramPoolPartition);
}
}