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@ -1,7 +1,4 @@
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//! Page table implementations for aarch64.
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//! Page table implementations for aarch64.
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// Depends on kernel
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use consts::{KERNEL_PML4, RECURSIVE_INDEX};
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use memory::{active_table, alloc_frame, alloc_stack, dealloc_frame};
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use ucore_memory::memory_set::*;
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use ucore_memory::memory_set::*;
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use ucore_memory::PAGE_SIZE;
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use ucore_memory::PAGE_SIZE;
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use ucore_memory::paging::*;
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use ucore_memory::paging::*;
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@ -10,6 +7,10 @@ use aarch64::{PhysAddr, VirtAddr};
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use aarch64::paging::{Mapper, PageTable as Aarch64PageTable, PageTableEntry, PageTableFlags as EF, RecursivePageTable};
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use aarch64::paging::{Mapper, PageTable as Aarch64PageTable, PageTableEntry, PageTableFlags as EF, RecursivePageTable};
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use aarch64::paging::{FrameAllocator, FrameDeallocator, Page, PhysFrame as Frame, Size4KiB, Size2MiB, Size1GiB};
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use aarch64::paging::{FrameAllocator, FrameDeallocator, Page, PhysFrame as Frame, Size4KiB, Size2MiB, Size1GiB};
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use aarch64::paging::memory_attribute::*;
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use aarch64::paging::memory_attribute::*;
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use log::*;
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// Depends on kernel
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use crate::consts::{KERNEL_PML4, RECURSIVE_INDEX};
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use crate::memory::{active_table, alloc_frame, dealloc_frame};
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// need 3 page
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// need 3 page
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pub fn setup_temp_page_table(frame_lvl4: Frame, frame_lvl3: Frame, frame_lvl2: Frame) {
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pub fn setup_temp_page_table(frame_lvl4: Frame, frame_lvl3: Frame, frame_lvl2: Frame) {
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@ -25,7 +26,7 @@ pub fn setup_temp_page_table(frame_lvl4: Frame, frame_lvl3: Frame, frame_lvl2: F
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for page in Page::<Size2MiB>::range_of(start_addr, end_addr) {
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for page in Page::<Size2MiB>::range_of(start_addr, end_addr) {
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let paddr = PhysAddr::new(page.start_address().as_u64());
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let paddr = PhysAddr::new(page.start_address().as_u64());
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use arch::board::IO_REMAP_BASE;
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use super::board::IO_REMAP_BASE;
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if paddr.as_u64() >= IO_REMAP_BASE as u64 {
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if paddr.as_u64() >= IO_REMAP_BASE as u64 {
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p2[page.p2_index()].set_block::<Size2MiB>(paddr, block_flags | EF::PXN, MairDevice::attr_value());
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p2[page.p2_index()].set_block::<Size2MiB>(paddr, block_flags | EF::PXN, MairDevice::attr_value());
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} else {
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} else {
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@ -55,7 +56,7 @@ impl PageTable for ActivePageTable {
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let attr = MairNormal::attr_value();
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let attr = MairNormal::attr_value();
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self.0.map_to(Page::of_addr(addr), Frame::of_addr(target), flags, attr, &mut FrameAllocatorForAarch64)
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self.0.map_to(Page::of_addr(addr), Frame::of_addr(target), flags, attr, &mut FrameAllocatorForAarch64)
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.unwrap().flush();
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.unwrap().flush();
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self.get_entry(addr)
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self.get_entry(addr).expect("fail to get entry")
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}
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}
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fn unmap(&mut self, addr: usize) {
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fn unmap(&mut self, addr: usize) {
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@ -241,13 +242,14 @@ impl InactivePageTable for InactivePageTable0 {
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ttbr_el1_write(1, new_frame);
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ttbr_el1_write(1, new_frame);
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tlb_invalidate_all();
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tlb_invalidate_all();
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}
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}
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f();
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let ret = f();
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debug!("switch TTBR1 {:?} -> {:?}", new_frame, old_frame);
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debug!("switch TTBR1 {:?} -> {:?}", new_frame, old_frame);
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if old_frame != new_frame {
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if old_frame != new_frame {
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ttbr_el1_write(1, old_frame);
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ttbr_el1_write(1, old_frame);
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tlb_invalidate_all();
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tlb_invalidate_all();
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flush_icache_all();
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flush_icache_all();
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}
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}
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ret
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}
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}
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fn token(&self) -> usize {
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fn token(&self) -> usize {
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WangRunji
6 years ago