[PATCH MANUALSEL 5.15 3/3] KVM: x86/svm: add __GFP_ACCOUNT to __sev_dbg_{en,de}crypt_user()

[Sasha Levin]

From: Mingwei Zhang <mizhang@xxxxxxxxxx>

[ Upstream commit ebdec859faa8cfbfef9f6c1f83d79dd6c8f4ab8c ]

Adding the accounting flag when allocating pages within the SEV function,
since these memory pages should belong to individual VM.

No functional change intended.

Signed-off-by: Mingwei Zhang <mizhang@xxxxxxxxxx>
Message-Id: <20220623171858.2083637-1-mizhang@xxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/x86/kvm/svm/sev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 4a4dc105552e..86f3096f042f 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -832,7 +832,7 @@ static int __sev_dbg_encrypt_user(struct kvm *kvm, unsigned long paddr,
 
 	/* If source buffer is not aligned then use an intermediate buffer */
 	if (!IS_ALIGNED((unsigned long)vaddr, 16)) {
-		src_tpage = alloc_page(GFP_KERNEL);
+		src_tpage = alloc_page(GFP_KERNEL_ACCOUNT);
 		if (!src_tpage)
 			return -ENOMEM;
 
@@ -853,7 +853,7 @@ static int __sev_dbg_encrypt_user(struct kvm *kvm, unsigned long paddr,
 	if (!IS_ALIGNED((unsigned long)dst_vaddr, 16) || !IS_ALIGNED(size, 16)) {
 		int dst_offset;
 
-		dst_tpage = alloc_page(GFP_KERNEL);
+		dst_tpage = alloc_page(GFP_KERNEL_ACCOUNT);
 		if (!dst_tpage) {
 			ret = -ENOMEM;
 			goto e_free;
-- 
2.35.1