summaryrefslogtreecommitdiff
path: root/src/sys/arch/amd64
diff options
context:
space:
mode:
authorIan Moffett <ian@osmora.org>2025-09-17 17:45:24 -0400
committerIan Moffett <ian@osmora.org>2025-09-17 17:53:00 -0400
commitbccb4fec8a3ad8a46e08124c9adf1aa54a87c9cb (patch)
tree10922baf0008dbab8f6954be0c87fb7b89d7b801 /src/sys/arch/amd64
parent11d266ffd822bfa55c1d272557662b0c18f03f0f (diff)
kern/amd64: mmu: Add mmu_free_vas() to cleanup VAS
Introduce a new resource deallocation function that destroys a specified virtual address space. Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'src/sys/arch/amd64')
-rw-r--r--src/sys/arch/amd64/cpu/mmu.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/sys/arch/amd64/cpu/mmu.c b/src/sys/arch/amd64/cpu/mmu.c
index face548..2b98d78 100644
--- a/src/sys/arch/amd64/cpu/mmu.c
+++ b/src/sys/arch/amd64/cpu/mmu.c
@@ -394,6 +394,17 @@ mmu_write_vas(struct vm_vas *vas)
}
/*
+ * Allocate the frame used for a VAS
+ */
+int
+mmu_free_vas(struct vm_vas *vas)
+{
+ vm_free_frame(vas->cr3, 1);
+ vas->cr3 = 0;
+ return 0;
+}
+
+/*
* Verify that we are in a known state
*/
int