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feat(kernel): kernel-owned memory model

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- FrameTable: per-frame owner/use, replaces PagePool + ProcessMemory
- Quota per process, page tables charged to owner
- Regions for shared mem + device MMIO, torn down w/ owner
- Platform: create/destroy AS, map/unmap, zero_frame; drop translate_va
- RequestPages/ReleasePages/MapPage(move) checked vs kernel records
- user window 0x1000..32MiB, private pts by construction
- boot loader + device setup go through kernel api
- kernel built in place, boot allocator bounded
- isolation tests, randomized invariant test, FrameTable kani proofs
- fixes: inflated release, unmapped release, dst va unchecked,
  heap overflow, unbounded pt alloc, unzeroed frames, double free
This commit is contained in:
Gabriel Kaszewski
2026-10-26 19:40:50 +01:00
parent e931485ca7
commit 8d2c40cb1e
43 changed files with 2815 additions and 1172 deletions
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18
crates/adapter-riscv/src/hw/virtio_blk.rs
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@@ -29,20 +29,18 @@ impl VirtioBlk {
pub fn probe() -> Option<Self> {
let mmio = mmio::scan_for_device(mmio::DEVICE_ID_BLOCK)?;
let vq_phys = unsafe { core::ptr::addr_of!(VQUEUE) as usize };
let vq_phys = core::ptr::addr_of!(VQUEUE) as usize;
mmio::init_legacy_device(&mmio, vq_phys, QUEUE_SIZE as u32);
let queue = VirtioQueue::new(QueueAddrs::from_base(vq_phys));
let dma = unsafe {
DmaAddrs {
header_pa: PhysicalAddress::from_raw(core::ptr::addr_of!(REQ_HEADER) as usize),
header_va: VirtualAddress::from_raw(core::ptr::addr_of_mut!(REQ_HEADER) as usize),
status_pa: PhysicalAddress::from_raw(core::ptr::addr_of!(REQ_STATUS) as usize),
status_va: VirtualAddress::from_raw(core::ptr::addr_of_mut!(REQ_STATUS) as usize),
data_pa: PhysicalAddress::from_raw(core::ptr::addr_of!(SECTOR_BUF) as usize),
data_va: VirtualAddress::from_raw(core::ptr::addr_of_mut!(SECTOR_BUF) as usize),
}
let dma = DmaAddrs {
header_pa: PhysicalAddress::from_raw(core::ptr::addr_of!(REQ_HEADER) as usize),
header_va: VirtualAddress::from_raw(core::ptr::addr_of_mut!(REQ_HEADER) as usize),
status_pa: PhysicalAddress::from_raw(core::ptr::addr_of!(REQ_STATUS) as usize),
status_va: VirtualAddress::from_raw(core::ptr::addr_of_mut!(REQ_STATUS) as usize),
data_pa: PhysicalAddress::from_raw(core::ptr::addr_of!(SECTOR_BUF) as usize),
data_va: VirtualAddress::from_raw(core::ptr::addr_of_mut!(SECTOR_BUF) as usize),
};
Some(Self { mmio, queue, dma })