These functions are wrappers around the p4d/pud/pmd/pte free function
which can be used with any pointer in the directory.
Signed-off-by: Alexandre Chartre <alexandre.chartre@xxxxxxxxxx>
---
arch/x86/kvm/isolation.c | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/isolation.c b/arch/x86/kvm/isolation.c
index 1efdab1..61df750 100644
--- a/arch/x86/kvm/isolation.c
+++ b/arch/x86/kvm/isolation.c
@@ -161,6 +161,32 @@ static bool kvm_valid_pgt_entry(void *ptr)
}
+/*
+ * kvm_pXX_free() functions are equivalent to kernel pXX_free()
+ * functions but they can be used with any PXX pointer in the
+ * directory.
+ */
+
+static inline void kvm_pte_free(struct mm_struct *mm, pte_t *pte)
+{
+ pte_free_kernel(mm, PGTD_ALIGN(pte));
+}
+
+static inline void kvm_pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+ pmd_free(mm, PGTD_ALIGN(pmd));
+}
+
+static inline void kvm_pud_free(struct mm_struct *mm, pud_t *pud)
+{
+ pud_free(mm, PGTD_ALIGN(pud));
+}
+
+static inline void kvm_p4d_free(struct mm_struct *mm, p4d_t *p4d)
+{
+ p4d_free(mm, PGTD_ALIGN(p4d));
+}
+
static int kvm_isolation_init_mm(void)
{
--
1.7.1
