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Update TD-shim patch and change shared memory #76

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32 changes: 26 additions & 6 deletions Cargo.lock

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4 changes: 2 additions & 2 deletions src/attestation/src/ghci.rs
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ use core::sync::atomic::{AtomicU8, Ordering};
use core::{ffi::c_void, ptr::null_mut, slice::from_raw_parts_mut};
use td_payload::arch::apic::{disable, enable_and_hlt};
use td_payload::arch::idt::register;
use td_payload::{interrupt_handler_template, mm::dma::DmaMemory};
use td_payload::{interrupt_handler_template, mm::shared::SharedMemory};
use tdx_tdcall::{td_vmcall, tdx, TdVmcallArgs, TdVmcallError};

use crate::binding::AttestLibError;
Expand All @@ -26,7 +26,7 @@ pub extern "C" fn migtd_get_quote(tdquote_req_buf: *mut c_void, len: u64) -> i32

let input = unsafe { from_raw_parts_mut(tdquote_req_buf as *mut u8, len as usize) };

let mut shared = if let Some(shared) = DmaMemory::new(len as usize / 0x1000) {
let mut shared = if let Some(shared) = SharedMemory::new(len as usize / 0x1000) {
shared
} else {
return AttestLibError::MigtdAttestErrorOutOfMemory as i32;
Expand Down
4 changes: 2 additions & 2 deletions src/devices/virtio/fuzz/fuzz_targets/afl-virtio.rs
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ const BARU64_2_OFFSET: u64 = 0x18;
const BARU64_3_OFFSET: u64 = 0x20;

const VEC_CAPACITY: usize = 0x10000_0000;
const TD_PAYLOAD_DMA_SIZE: usize = 0x100_0000;
const TD_PAYLOAD_SHARED_MEMORY_SIZE: usize = 0x100_0000;
const PTR_ALIGN_VAR: u64 = 0xffff_ffff_ffff_0000;

const DATA_LEN: usize = 0x100_0000;
Expand All @@ -28,7 +28,7 @@ fn main() {

let common_addr = 0;
let paddr = ptr + PAGE_SIZE as u64;
init(paddr as usize, TD_PAYLOAD_DMA_SIZE);
init(paddr as usize, TD_PAYLOAD_SHARED_MEMORY_SIZE);
COMMON_HEADER.try_init_once(|| ptr).expect("init error");

#[cfg(not(feature = "fuzz"))]
Expand Down
2 changes: 1 addition & 1 deletion src/devices/virtio/fuzz/fuzz_targets/fuzz-virtio.rs
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ fuzz_target!(|data: &[u8]| {

let common_addr = ptr + 0x10c;
let paddr = ptr + PAGE_SIZE as u64;
init(paddr as usize, TD_PAYLOAD_DMA_SIZE);
init(paddr as usize, TD_PAYLOAD_SHARED_MEMORY_SIZE);
// COMMON_HEADER.try_init_once(|| ptr).expect("init error");
if !COMMON_HEADER.is_initialized() {
COMMON_HEADER.init_once(|| ptr);
Expand Down
28 changes: 14 additions & 14 deletions src/devices/virtio/fuzz/fuzz_targets/fuzzlib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -2,9 +2,9 @@
//
// SPDX-License-Identifier: BSD-2-Clause-Patent

use crate::fuzzlib::dma_alloc::virtio_dma_alloc;
use crate::fuzzlib::shared_alloc::virtio_shared_alloc;
use conquer_once::spin::OnceCell;
pub use dma_alloc::init;
pub use shared_alloc::init;

pub use pci::{get_fuzz_seed_address, PciDevice, COMMON_HEADER};
pub use virtio::{
Expand All @@ -21,7 +21,7 @@ pub const BARU64_2_OFFSET: u64 = 0x18;
pub const BARU64_3_OFFSET: u64 = 0x20;

pub const VEC_CAPACITY: usize = 0x10000_0000;
pub const TD_PAYLOAD_DMA_SIZE: usize = 0x100_0000;
pub const TD_PAYLOAD_SHARED_MEMORY_SIZE: usize = 0x100_0000;
pub const PTR_ALIGN_VAR: u64 = 0xffff_ffff_ffff_0000;

pub const DATA_LEN: usize = 0x100_0000;
Expand Down Expand Up @@ -66,12 +66,12 @@ pub fn fuzz_virtio(pddr: u64) {
}
}

mod dma_alloc {
mod shared_alloc {

use bitmap_allocator::{BitAlloc, BitAlloc4K};
use spin::Mutex;

static DMA_ALLOCATOR: Mutex<DmaAlloc> = Mutex::new(DmaAlloc::empty());
static SHARED_MEMORY_ALLOCATOR: Mutex<SharedAlloc> = Mutex::new(SharedAlloc::empty());

pub fn init(dma_base: usize, dma_size: usize) {
println!("init dma - {:#x} - {:#x}\n", dma_base, dma_base + dma_size);
Expand All @@ -80,18 +80,18 @@ mod dma_alloc {

fn init_dma(dma_base: usize, dma_size: usize) {
// set page table flags TBD:
*DMA_ALLOCATOR.lock() = DmaAlloc::new(dma_base as usize, dma_size);
*SHARED_MEMORY_ALLOCATOR.lock() = SharedAlloc::new(dma_base as usize, dma_size);
}

#[no_mangle]
pub extern "C" fn virtio_dma_alloc(blocks: usize) -> PhysAddr {
let paddr = unsafe { DMA_ALLOCATOR.lock().alloc_contiguous(blocks, 0) }.unwrap_or(0);
pub extern "C" fn virtio_shared_alloc(blocks: usize) -> PhysAddr {
let paddr = unsafe { SHARED_MEMORY_ALLOCATOR.lock().alloc_contiguous(blocks, 0) }.unwrap_or(0);
paddr
}

#[no_mangle]
pub extern "C" fn virtio_dma_dealloc(paddr: PhysAddr, blocks: usize) -> i32 {
let _ = unsafe { DMA_ALLOCATOR.lock().dealloc_contiguous(paddr, blocks) };
pub extern "C" fn virtio_shared_dealloc(paddr: PhysAddr, blocks: usize) -> i32 {
let _ = unsafe { SHARED_MEMORY_ALLOCATOR.lock().dealloc_contiguous(paddr, blocks) };
0
}

Expand All @@ -108,14 +108,14 @@ mod dma_alloc {
type VirtAddr = usize;
type PhysAddr = usize;

struct DmaAlloc {
struct SharedAlloc {
base: usize,
inner: BitAlloc4K,
}

const BLOCK_SIZE: usize = 4096;

impl Default for DmaAlloc {
impl Default for SharedAlloc {
fn default() -> Self {
Self {
base: 0,
Expand All @@ -124,13 +124,13 @@ mod dma_alloc {
}
}

impl DmaAlloc {
impl SharedAlloc {
pub fn new(base: usize, length: usize) -> Self {
let mut inner = BitAlloc4K::DEFAULT;
let blocks = length / BLOCK_SIZE;
assert!(blocks <= BitAlloc4K::CAP);
inner.insert(0..blocks);
DmaAlloc { base, inner }
SharedAlloc { base, inner }
}

const fn empty() -> Self {
Expand Down
12 changes: 6 additions & 6 deletions src/devices/virtio_serial/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,7 @@ impl DmaMemoryRegion {
}

/// Trait to allow separation of transport from block driver
pub trait DmaPageAllocator {
pub trait SharedPageAllocator {
fn alloc_pages(&self, page_num: usize) -> Option<u64>;
fn free_pages(&self, addr: u64, page_num: usize);
}
Expand Down Expand Up @@ -186,7 +186,7 @@ impl From<u16> for ControlEvent {

pub struct VirtioSerial {
virtio: Box<dyn VirtioTransport>,
dma_allocator: Box<dyn DmaPageAllocator>,
shared_allocator: Box<dyn SharedPageAllocator>,
timer: Box<dyn Timer>,

/// DMA allocation table
Expand All @@ -211,12 +211,12 @@ unsafe impl Sync for VirtioSerial {}
impl VirtioSerial {
pub fn new(
virtio: Box<dyn VirtioTransport>,
dma_allocator: Box<dyn DmaPageAllocator>,
shared_allocator: Box<dyn SharedPageAllocator>,
timer: Box<dyn Timer>,
) -> Result<Self> {
Ok(Self {
virtio,
dma_allocator,
shared_allocator,
timer,
queues: Vec::new(),
receive_queues_prefill: Vec::new(),
Expand Down Expand Up @@ -792,7 +792,7 @@ impl VirtioSerial {

fn allocate_dma_memory(&mut self, size: usize) -> Option<DmaMemoryRegion> {
let dma_size = align_up(size);
let dma_addr = self.dma_allocator.alloc_pages(dma_size / PAGE_SIZE)?;
let dma_addr = self.shared_allocator.alloc_pages(dma_size / PAGE_SIZE)?;

let record = DmaMemoryRegion::new(dma_addr, dma_size);
self.dma_allocation.insert(dma_addr, record);
Expand All @@ -803,7 +803,7 @@ impl VirtioSerial {
fn free_dma_memory(&mut self, dma_addr: u64) -> Option<u64> {
let record = self.dma_allocation.get(&dma_addr)?;

self.dma_allocator
self.shared_allocator
.free_pages(record.dma_addr, record.dma_size / PAGE_SIZE);

self.dma_allocation.remove(&dma_addr);
Expand Down
10 changes: 5 additions & 5 deletions src/devices/vsock/fuzz/fuzz_targets/afl-vsock.rs
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@

mod fuzzlib;
use conquer_once::spin::OnceCell;
use fuzzlib::{init, virtio_dma_alloc, virtio_dma_dealloc, COMMON_HEADER};
use fuzzlib::{init, virtio_shared_alloc, virtio_shared_dealloc, COMMON_HEADER};
use spin::{once::Once, Mutex};
use std::thread::spawn;
use virtio::{virtio_pci::VirtioPciTransport, Result};
Expand All @@ -21,7 +21,7 @@ const BARU64_2_OFFSET: u64 = 0x18;
const BARU64_3_OFFSET: u64 = 0x20;

const VEC_CAPACITY: usize = 0x10000_0000;
const TD_PAYLOAD_DMA_SIZE: usize = 0x100_0000;
const TD_PAYLOAD_SHARED_MEMORY_SIZE: usize = 0x100_0000;
const PTR_ALIGN_VAR: u64 = 0xffff_ffff_ffff_0000;

const DATA_LEN: usize = 0x100_0000;
Expand Down Expand Up @@ -62,7 +62,7 @@ struct Allocator;

impl VsockDmaPageAllocator for Allocator {
fn alloc_pages(&self, page_num: usize) -> Option<u64> {
let addr = virtio_dma_alloc(page_num);
let addr = virtio_shared_alloc(page_num);
if addr == 0 {
None
} else {
Expand All @@ -71,7 +71,7 @@ impl VsockDmaPageAllocator for Allocator {
}

fn free_pages(&self, addr: u64, page_num: usize) {
virtio_dma_dealloc(addr as usize, page_num);
virtio_shared_dealloc(addr as usize, page_num);
}
}

Expand Down Expand Up @@ -238,7 +238,7 @@ fn main() {
data[..DEVICE_HEADER.len()].copy_from_slice(&DEVICE_HEADER);
COMMON_HEADER.try_init_once(|| ptr).expect("init error");
let paddr = ptr + PAGE_SIZE as u64;
init(paddr as usize, TD_PAYLOAD_DMA_SIZE);
init(paddr as usize, TD_PAYLOAD_SHARED_MEMORY_SIZE);

#[cfg(not(feature = "fuzz"))]
{
Expand Down
4 changes: 2 additions & 2 deletions src/devices/vsock/fuzz/fuzz_targets/fuzz-vsock.rs
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ const BARU64_2_OFFSET: u64 = 0x18;
const BARU64_3_OFFSET: u64 = 0x20;

const VEC_CAPACITY: usize = 0x10000_0000;
const TD_PAYLOAD_DMA_SIZE: usize = 0x100_0000;
const TD_PAYLOAD_SHARED_MEMORY_SIZE: usize = 0x100_0000;
const PTR_ALIGN_VAR: u64 = 0xffff_ffff_ffff_0000;

const DATA_LEN: usize = 0x100_0000;
Expand Down Expand Up @@ -231,7 +231,7 @@ fuzz_target!(|data: &[u8]| {
data[..tmp.len()].copy_from_slice(&tmp);
let common_addr = ptr + 0x10c;
let paddr = ptr + PAGE_SIZE as u64;
init(paddr as usize, TD_PAYLOAD_DMA_SIZE);
init(paddr as usize, TD_PAYLOAD_SHARED_MEMORY_SIZE);
COMMON_HEADER.try_init_once(|| ptr).expect("init error");

unsafe {
Expand Down
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