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Diffstat (limited to 'util')
-rw-r--r--util/memfd.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/util/memfd.c b/util/memfd.c
index 8d27307137..7594af7089 100644
--- a/util/memfd.c
+++ b/util/memfd.c
@@ -52,7 +52,11 @@ static int memfd_create(const char *name, unsigned int flags)
#define MFD_ALLOW_SEALING 0x0002U
#endif
-int qemu_memfd_create(const char *name, size_t size,
+#ifndef MFD_HUGETLB
+#define MFD_HUGETLB 0x0004U
+#endif
+
+int qemu_memfd_create(const char *name, size_t size, bool hugetlb,
unsigned int seals, Error **errp)
{
#ifdef CONFIG_LINUX
@@ -62,6 +66,9 @@ int qemu_memfd_create(const char *name, size_t size,
if (seals) {
flags |= MFD_ALLOW_SEALING;
}
+ if (hugetlb) {
+ flags |= MFD_HUGETLB;
+ }
mfd = memfd_create(name, flags);
if (mfd < 0) {
@@ -97,11 +104,11 @@ void *qemu_memfd_alloc(const char *name, size_t size, unsigned int seals,
int *fd, Error **errp)
{
void *ptr;
- int mfd = qemu_memfd_create(name, size, seals, NULL);
+ int mfd = qemu_memfd_create(name, size, false, seals, NULL);
/* some systems have memfd without sealing */
if (mfd == -1) {
- mfd = qemu_memfd_create(name, size, 0, NULL);
+ mfd = qemu_memfd_create(name, size, false, 0, NULL);
}
if (mfd == -1) {