[PATCH] KVM: X86: Fix compile error in svm/sev.c

[Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>]

The compiler reported the following compilation errors:

arch/x86/kvm/svm/sev.c: In function ‘sev_pin_memory’:
arch/x86/kvm/svm/sev.c:361:3: error: implicit declaration of function
‘release_pages’ [-Werror=implicit-function-declaration]
   release_pages(pages, npinned);
   ^~~~~~~~~~~~~

The reason is that the 'pagemap.h' header file is not included.

Signed-off-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>
---
 arch/x86/kvm/svm/sev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 0e3fc311d7da..3ef99e87c1db 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -13,6 +13,7 @@
 #include <linux/highmem.h>
 #include <linux/psp-sev.h>
 #include <linux/swap.h>
+#include <linux/pagemap.h>
 
 #include "x86.h"
 #include "svm.h"
-- 
2.17.1