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aarch64: set ttbr0_el1 to null for kernel thread, fixed #56

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This commit is contained in:
equation314 2019-08-28 01:41:47 +08:00
parent 55cfce6c02
commit d56a88947e
7 changed files with 24 additions and 19 deletions
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8
bootloader/Cargo.lock generated
View File

@ -2,8 +2,8 @@
# It is not intended for manual editing.
[[package]]
name = "aarch64"
version = "2.6.1"
source = "git+https://github.com/rcore-os/aarch64#65d1453f11f3cc113247352dffa02d8dcdd34769"
version = "2.7.0"
source = "git+https://github.com/rcore-os/aarch64#b2806c9f0fe0120a838cf8afdec8c4899241ef7e"
dependencies = [
"bit_field 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@ -104,7 +104,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
name = "rcore-bootloader"
version = "0.1.0"
dependencies = [
"aarch64 2.6.1 (git+https://github.com/rcore-os/aarch64)",
"aarch64 2.7.0 (git+https://github.com/rcore-os/aarch64)",
"bcm2837 1.0.0 (git+https://github.com/rcore-os/bcm2837)",
"cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
"fixedvec 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@ -211,7 +211,7 @@ version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[metadata]
"checksum aarch64 2.6.1 (git+https://github.com/rcore-os/aarch64)" = "<none>"
"checksum aarch64 2.7.0 (git+https://github.com/rcore-os/aarch64)" = "<none>"
"checksum bcm2837 1.0.0 (git+https://github.com/rcore-os/bcm2837)" = "<none>"
"checksum bit_field 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ed8765909f9009617974ab6b7d332625b320b33c326b1e9321382ef1999b5d56"
"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"

2
bootloader/Cargo.toml
View File

@ -9,7 +9,7 @@ xmas-elf = "0.6.2"
fixedvec = "0.2.3"
[target.'cfg(target_arch = "aarch64")'.dependencies]
aarch64 = { git = "https://github.com/rcore-os/aarch64", version = "2.6.1" }
aarch64 = { git = "https://github.com/rcore-os/aarch64", version = "2.7.0" }
bcm2837 = { git = "https://github.com/rcore-os/bcm2837", version = "1.0.0" }
[build-dependencies]

8
bootloader/src/arch/aarch64/mod.rs
View File

@ -1,5 +1,5 @@
use aarch64::addr::{PhysAddr, VirtAddr};
use aarch64::paging::{memory_attribute::*, Page, PageTable, PageTableFlags as EF, PhysFrame};
use aarch64::paging::{memory_attribute::*, Page, PageTable, PageTableAttribute, PageTableFlags as EF, PhysFrame};
use aarch64::paging::{Size1GiB, Size2MiB, Size4KiB};
use aarch64::{asm::*, barrier, regs::*};
use bcm2837::consts::RAW_IO_BASE;
@ -42,7 +42,7 @@ fn create_page_table(start_paddr: usize, end_paddr: usize) {
p3.zero();
p2.zero();
let block_flags = EF::VALID | EF::AF | EF::WRITE | EF::UXN;
let block_flags = EF::default_block() | EF::UXN;
// normal memory
for frame in PhysFrame::<Size2MiB>::range_of(start_paddr as u64, end_paddr as u64) {
let paddr = frame.start_address();
@ -58,10 +58,10 @@ fn create_page_table(start_paddr: usize, end_paddr: usize) {
p2[page.p2_index()].set_block::<Size2MiB>(paddr, block_flags | EF::PXN, MairDevice::attr_value());
}
p3[0].set_frame(frame_lvl2, EF::default(), MairNormal::attr_value());
p3[0].set_frame(frame_lvl2, EF::default_table(), PageTableAttribute::new(0, 0, 0));
p3[1].set_block::<Size1GiB>(PhysAddr::new(0x4000_0000), block_flags | EF::PXN, MairDevice::attr_value());
p4[0].set_frame(frame_lvl3, EF::default(), MairNormal::attr_value());
p4[0].set_frame(frame_lvl3, EF::default_table(), PageTableAttribute::new(0, 0, 0));
// the bootloader is still running at the lower virtual address range,
// so the TTBR0_EL1 also needs to be set.

10
kernel/Cargo.lock generated
View File

@ -2,8 +2,8 @@
# It is not intended for manual editing.
[[package]]
name = "aarch64"
version = "2.6.1"
source = "git+https://github.com/rcore-os/aarch64#65d1453f11f3cc113247352dffa02d8dcdd34769"
version = "2.7.0"
source = "git+https://github.com/rcore-os/aarch64#b2806c9f0fe0120a838cf8afdec8c4899241ef7e"
dependencies = [
"bit_field 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -68,7 +68,7 @@ name = "bcm2837"
version = "1.0.0"
source = "git+https://github.com/rcore-os/bcm2837#bf1e4ec63c52827bc199399f214f39a4fdcbe228"
dependencies = [
"aarch64 2.6.1 (git+https://github.com/rcore-os/aarch64)",
"aarch64 2.7.0 (git+https://github.com/rcore-os/aarch64)",
"volatile 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -380,7 +380,7 @@ dependencies = [
name = "rcore"
version = "0.2.0"
dependencies = [
"aarch64 2.6.1 (git+https://github.com/rcore-os/aarch64)",
"aarch64 2.7.0 (git+https://github.com/rcore-os/aarch64)",
"acpi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"aml 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"apic 0.1.0 (git+https://github.com/rcore-os/apic-rs)",
@ -751,7 +751,7 @@ version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[metadata]
"checksum aarch64 2.6.1 (git+https://github.com/rcore-os/aarch64)" = "<none>"
"checksum aarch64 2.7.0 (git+https://github.com/rcore-os/aarch64)" = "<none>"
"checksum acpi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2c18d706bdc322dd4f8f7930a5879ad8df3d78d4452a678d5419c72f9f69acea"
"checksum aml 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b7669e841017880c2710777c46ec654272163379bbe55de6e17a2a2388d44d92"
"checksum apic 0.1.0 (git+https://github.com/rcore-os/apic-rs)" = "<none>"

2
kernel/Cargo.toml
View File

@ -86,7 +86,7 @@ aml = "0.4"
riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
[target.'cfg(target_arch = "aarch64")'.dependencies]
aarch64 = { git = "https://github.com/rcore-os/aarch64", version = "2.6.1" }
aarch64 = { git = "https://github.com/rcore-os/aarch64", version = "2.7.0" }
bcm2837 = { git = "https://github.com/rcore-os/bcm2837", version = "1.0.0", optional = true }
[target.'cfg(target_arch = "mips")'.dependencies]

2
kernel/src/arch/aarch64/memory.rs
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@ -2,11 +2,13 @@
use crate::consts::MEMORY_OFFSET;
use crate::memory::{init_heap, virt_to_phys, FRAME_ALLOCATOR};
use aarch64::{paging::frame::PhysFrame, asm::ttbr_el1_write};
use log::*;
use rcore_memory::PAGE_SIZE;
/// Memory initialization.
pub fn init() {
ttbr_el1_write(0, PhysFrame::of_addr(0));
init_frame_allocator();
init_heap();
info!("memory: init end");

11
kernel/src/arch/aarch64/paging.rs
View File

@ -9,7 +9,7 @@ use aarch64::paging::{
page_table::{PageTable as Aarch64PageTable, PageTableEntry, PageTableFlags as EF},
FrameAllocator, FrameDeallocator, Page as PageAllSizes, Size4KiB,
};
use aarch64::{PhysAddr, VirtAddr};
use aarch64::PhysAddr;
use core::mem::ManuallyDrop;
use log::*;
use rcore_memory::paging::*;
@ -26,7 +26,7 @@ pub struct PageEntry(&'static mut PageTableEntry, Page);
impl PageTable for PageTableImpl {
fn map(&mut self, addr: usize, target: usize) -> &mut dyn Entry {
let flags = EF::default();
let flags = EF::default_page() | EF::PXN | EF::UXN;
let attr = MairNormal::attr_value();
unsafe {
self.page_table
@ -85,6 +85,7 @@ pub enum MMIOType {
Unsupported = 3,
}
// TODO: software dirty bit needs to be reconsidered
impl Entry for PageEntry {
fn update(&mut self) {
tlb_invalidate(self.1.start_address());
@ -161,9 +162,11 @@ impl Entry for PageEntry {
}
fn set_execute(&mut self, value: bool) {
if self.user() {
self.as_flags().set(EF::UXN, !value)
self.as_flags().set(EF::UXN, !value);
self.as_flags().set(EF::PXN, true);
} else {
self.as_flags().set(EF::PXN, !value)
self.as_flags().set(EF::PXN, !value);
self.as_flags().set(EF::UXN, true)
}
}
fn mmio(&self) -> u8 {