[PATCH 2/4] kvm: sev: Unmap pages in correct order in sev_gmem_post_populate()

[Jörg Rödel]

From: Joerg Roedel <joerg.roedel@xxxxxxx>

The kmap_local() interface requires unmapping of pages in reverse
order of mapping.

Fixes: 2a62345b3052 ("KVM: guest_memfd: GUP source pages prior to populating guest memory")
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
 arch/x86/kvm/svm/sev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 41dcba5180ca..f09d15f68964 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -2360,8 +2360,8 @@ static int sev_gmem_post_populate(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn,
 
 		memcpy(dst_vaddr, src_vaddr, PAGE_SIZE);
 
-		kunmap_local(src_vaddr);
 		kunmap_local(dst_vaddr);
+		kunmap_local(src_vaddr);
 	}
 
 	ret = rmp_make_private(pfn, gfn << PAGE_SHIFT, PG_LEVEL_4K,
-- 
2.53.0