x64: Fill an XSAVE area with zeroes (#136)

nuta · Dec 18, 2021 · 3ad3260 · 3ad3260
1 parent 975614b
commit 3ad3260
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/kernel/arch/x64/process.rs b/kernel/arch/x64/process.rs
@@ -82,7 +82,7 @@ impl Process {
             .expect("failed to allocate kernel stack")
             .as_vaddr();
         // TODO: Check the size of XSAVE area.
-        let xsave_area = alloc_pages(1, AllocPageFlags::KERNEL)
+        let xsave_area = alloc_pages(1, AllocPageFlags::KERNEL | AllocPageFlags::ZEROED)
             .expect("failed to allocate xsave area")
             .as_vaddr();
 
@@ -137,7 +137,7 @@ impl Process {
 
     pub fn fork(&self, frame: &PtRegs) -> Result<Process> {
         // TODO: Check the size of XSAVE area.
-        let xsave_area = alloc_pages(1, AllocPageFlags::KERNEL)
+        let xsave_area = alloc_pages(1, AllocPageFlags::KERNEL | AllocPageFlags::ZEROED)
             .expect("failed to allocate xsave area")
             .as_vaddr();