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Reimplemented BMC

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This commit is contained in:
Erin 2023-08-08 02:06:15 +02:00
parent cdee99598e
commit 5264576274
2 changed files with 8 additions and 24 deletions
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26
hbvm/src/mem/bmc.rs
View file

@ -1,7 +1,7 @@
use {
super::MemoryAccessReason,
crate::{
mem::{perm_check, HandlePageFault, Memory},
mem::{HandlePageFault, Memory},
VmRunError,
},
core::{mem::MaybeUninit, task::Poll},
@ -113,32 +113,16 @@ unsafe fn act(
) -> Result<(), BlkCopyError> {
// Load to buffer
memory
.memory_access(
MemoryAccessReason::Load,
src,
buf,
count,
perm_check::readable,
|src, dst, count| core::ptr::copy(src, dst, count),
traph,
)
.map_err(|addr| BlkCopyError::Access {
.load(src, buf, count, traph)
.map_err(|super::LoadError(addr)| BlkCopyError::Access {
access_reason: MemoryAccessReason::Load,
addr,
})?;
// Store from buffer
memory
.memory_access(
MemoryAccessReason::Store,
dst,
buf,
count,
perm_check::writable,
|dst, src, count| core::ptr::copy(src, dst, count),
traph,
)
.map_err(|addr| BlkCopyError::Access {
.store(dst, buf, count, traph)
.map_err(|super::StoreError(addr)| BlkCopyError::Access {
access_reason: MemoryAccessReason::Store,
addr,
})?;

4
hbvm/src/mem/mod.rs
View file

@ -426,12 +426,12 @@ impl PageSize {
/// Unhandled load access trap
#[derive(Clone, Copy, Display, Debug, PartialEq, Eq)]
#[display(fmt = "Load access error at address {_0:#x}")]
pub struct LoadError(u64);
pub struct LoadError(pub u64);
/// Unhandled store access trap
#[derive(Clone, Copy, Display, Debug, PartialEq, Eq)]
#[display(fmt = "Store access error at address {_0:#x}")]
pub struct StoreError(u64);
pub struct StoreError(pub u64);
/// There was no entry in page table to unmap
///