KVM: arm64: Use kmemleak_free_part_phys() to unregister hyp_mem_base

With commit 0c24e06 ("mm: kmemleak: add rbtree and store physical
address for objects allocated with PA"), kmemleak started to put the
objects allocated with physical address onto object_phys_tree_root tree.
The kmemleak_free_part() therefore no longer worked as expected on
physically allocated objects (hyp_mem_base in this case) as it attempted to
search and remove things in object_tree_root tree.

Fix it by using kmemleak_free_part_phys() to unregister hyp_mem_base. This
fixes an immediate crash when booting a KVM host in protected mode with
kmemleak enabled.

Signed-off-by: Zenghui Yu <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Reviewed-by: Oliver Upton <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Zenghui Yu

arch/arm64/kvm/arm.c

@@ -2114,7 +2114,7 @@ static int finalize_hyp_mode(void)
 	 * at, which would end badly once inaccessible.
 	 */
 	kmemleak_free_part(__hyp_bss_start, __hyp_bss_end - __hyp_bss_start);
-	kmemleak_free_part(__va(hyp_mem_base), hyp_mem_size);
+	kmemleak_free_part_phys(hyp_mem_base, hyp_mem_size);
 	return pkvm_drop_host_privileges();
 }