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kern: KPageTable: remove MapFirst operation, replace with MapFirstGroup

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Michael Scire 2023-10-11 09:32:23 -07:00 • committed by SciresM
parent 7b523cfc8d
commit 2a4d68f916
5 changed files with 53 additions and 37 deletions
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20
libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
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@ -351,7 +351,7 @@ namespace ams::kern::arch::arm64 {
MESOSPHERE_ASSERT(util::IsAligned(GetInteger(virt_addr), PageSize));
MESOSPHERE_ASSERT(this->ContainsPages(virt_addr, num_pages));
if (operation == OperationType_Map || operation == OperationType_MapFirst) {
if (operation == OperationType_Map) {
MESOSPHERE_ABORT_UNLESS(is_pa_valid);
MESOSPHERE_ASSERT(util::IsAligned(GetInteger(phys_addr), PageSize));
} else {
@ -378,8 +378,7 @@ namespace ams::kern::arch::arm64 {
switch (operation) {
case OperationType_Map:
case OperationType_MapFirst:
R_RETURN(this->MapContiguous(virt_addr, phys_addr, num_pages, entry_template, properties.disable_merge_attributes == DisableMergeAttribute_DisableHead, operation != OperationType_MapFirst, page_list, reuse_ll));
R_RETURN(this->MapContiguous(virt_addr, phys_addr, num_pages, entry_template, properties.disable_merge_attributes == DisableMergeAttribute_DisableHead, page_list, reuse_ll));
case OperationType_ChangePermissions:
R_RETURN(this->ChangePermissions(virt_addr, num_pages, entry_template, properties.disable_merge_attributes, false, false, page_list, reuse_ll));
case OperationType_ChangePermissionsAndRefresh:
@ -402,7 +401,8 @@ namespace ams::kern::arch::arm64 {
auto entry_template = this->GetEntryTemplate(properties);
switch (operation) {
case OperationType_MapGroup:
R_RETURN(this->MapGroup(virt_addr, page_group, num_pages, entry_template, properties.disable_merge_attributes == DisableMergeAttribute_DisableHead, page_list, reuse_ll));
case OperationType_MapFirstGroup:
R_RETURN(this->MapGroup(virt_addr, page_group, num_pages, entry_template, properties.disable_merge_attributes == DisableMergeAttribute_DisableHead, operation != OperationType_MapFirstGroup, page_list, reuse_ll));
MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
}
}
@ -759,7 +759,7 @@ namespace ams::kern::arch::arm64 {
R_SUCCEED();
}
Result KPageTable::MapContiguous(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, bool disable_head_merge, bool not_first, PageLinkedList *page_list, bool reuse_ll) {
Result KPageTable::MapContiguous(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, bool disable_head_merge, PageLinkedList *page_list, bool reuse_ll) {
MESOSPHERE_ASSERT(this->IsLockedByCurrentThread());
/* Cache initial addresses for use on cleanup. */
@ -830,21 +830,17 @@ namespace ams::kern::arch::arm64 {
/* Open references to the pages, if we should. */
if (IsHeapPhysicalAddress(orig_phys_addr)) {
if (not_first) {
Kernel::GetMemoryManager().Open(orig_phys_addr, num_pages);
} else {
Kernel::GetMemoryManager().OpenFirst(orig_phys_addr, num_pages);
}
Kernel::GetMemoryManager().Open(orig_phys_addr, num_pages);
}
R_SUCCEED();
}
Result KPageTable::MapGroup(KProcessAddress virt_addr, const KPageGroup &pg, size_t num_pages, PageTableEntry entry_template, bool disable_head_merge, PageLinkedList *page_list, bool reuse_ll) {
Result KPageTable::MapGroup(KProcessAddress virt_addr, const KPageGroup &pg, size_t num_pages, PageTableEntry entry_template, bool disable_head_merge, bool not_first, PageLinkedList *page_list, bool reuse_ll) {
MESOSPHERE_ASSERT(this->IsLockedByCurrentThread());
/* We want to maintain a new reference to every page in the group. */
KScopedPageGroup spg(pg);
KScopedPageGroup spg(pg, not_first);
/* Cache initial address for use on cleanup. */
const KProcessAddress orig_virt_addr = virt_addr;