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kern: KMemoryManager/KPageGroup use physical addresses instead of virtual, now

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Michael Scire 2021-09-18 00:11:10 -07:00 • committed by SciresM
parent 2c4bd44d7e
commit 2f2c36b22b
17 changed files with 305 additions and 260 deletions
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52
libraries/libmesosphere/source/kern_k_page_group.cpp
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@ -18,24 +18,30 @@
namespace ams::kern {
void KPageGroup::Finalize() {
auto it = m_block_list.begin();
while (it != m_block_list.end()) {
KBlockInfo *info = std::addressof(*it);
it = m_block_list.erase(it);
m_manager->Free(info);
KBlockInfo *cur = m_first_block;
while (cur != nullptr) {
KBlockInfo *next = cur->GetNext();
m_manager->Free(cur);
cur = next;
}
m_first_block = nullptr;
m_last_block = nullptr;
}
void KPageGroup::CloseAndReset() {
auto &mm = Kernel::GetMemoryManager();
auto it = m_block_list.begin();
while (it != m_block_list.end()) {
KBlockInfo *info = std::addressof(*it);
it = m_block_list.erase(it);
mm.Close(info->GetAddress(), info->GetNumPages());
m_manager->Free(info);
KBlockInfo *cur = m_first_block;
while (cur != nullptr) {
KBlockInfo *next = cur->GetNext();
mm.Close(cur->GetAddress(), cur->GetNumPages());
m_manager->Free(cur);
cur = next;
}
m_first_block = nullptr;
m_last_block = nullptr;
}
size_t KPageGroup::GetNumPages() const {
@ -48,7 +54,7 @@ namespace ams::kern {
return num_pages;
}
Result KPageGroup::AddBlock(KVirtualAddress addr, size_t num_pages) {
Result KPageGroup::AddBlock(KPhysicalAddress addr, size_t num_pages) {
/* Succeed immediately if we're adding no pages. */
R_SUCCEED_IF(num_pages == 0);
@ -56,9 +62,8 @@ namespace ams::kern {
MESOSPHERE_ASSERT(addr < addr + num_pages * PageSize);
/* Try to just append to the last block. */
if (!m_block_list.empty()) {
auto it = --(m_block_list.end());
R_SUCCEED_IF(it->TryConcatenate(addr, num_pages));
if (m_last_block != nullptr) {
R_SUCCEED_IF(m_last_block->TryConcatenate(addr, num_pages));
}
/* Allocate a new block. */
@ -67,7 +72,14 @@ namespace ams::kern {
/* Initialize the block. */
new_block->Initialize(addr, num_pages);
m_block_list.push_back(*new_block);
/* Add the block to our list. */
if (m_last_block != nullptr) {
m_last_block->SetNext(new_block);
} else {
m_first_block = new_block;
}
m_last_block = new_block;
return ResultSuccess();
}
@ -89,10 +101,10 @@ namespace ams::kern {
}
bool KPageGroup::IsEquivalentTo(const KPageGroup &rhs) const {
auto lit = m_block_list.cbegin();
auto rit = rhs.m_block_list.cbegin();
auto lend = m_block_list.cend();
auto rend = rhs.m_block_list.cend();
auto lit = this->begin();
auto rit = rhs.begin();
auto lend = this->end();
auto rend = rhs.end();
while (lit != lend && rit != rend) {
if (*lit != *rit) {