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0.1.54 - Add support for cache disable

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This commit is contained in:
Jeremy Soller
2019-04-08 17:57:25 -06:00
parent f042bd5d07
commit 58f9e5a801
4 changed files with 13 additions and 10 deletions
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5
src/syscall/driver.rs
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@@ -5,7 +5,7 @@ use paging::entry::EntryFlags;
use context;
use context::memory::Grant;
use syscall::error::{Error, EFAULT, EINVAL, ENOMEM, EPERM, ESRCH, Result};
use syscall::flag::{PHYSMAP_WRITE, PHYSMAP_WRITE_COMBINE};
use syscall::flag::{PHYSMAP_WRITE, PHYSMAP_WRITE_COMBINE, PHYSMAP_NO_CACHE};
fn enforce_root() -> Result<()> {
let contexts = context::contexts();
@@ -73,6 +73,9 @@ pub fn inner_physmap(physical_address: usize, size: usize, flags: usize) -> Resu
if flags & PHYSMAP_WRITE_COMBINE == PHYSMAP_WRITE_COMBINE {
entry_flags |= EntryFlags::HUGE_PAGE;
}
if flags & PHYSMAP_NO_CACHE == PHYSMAP_NO_CACHE {
entry_flags |= EntryFlags::NO_CACHE;
}
let mut i = 0;
while i < grants.len() {