diff options
| -rw-r--r-- | include/qemu/memfd.h | 4 | ||||
| -rw-r--r-- | util/memfd.c | 13 |
2 files changed, 12 insertions, 5 deletions
diff --git a/include/qemu/memfd.h b/include/qemu/memfd.h index b9d09873b5..1d3ecc7458 100644 --- a/include/qemu/memfd.h +++ b/include/qemu/memfd.h @@ -16,8 +16,8 @@ #define F_SEAL_WRITE 0x0008 /* prevent writes */ #endif -int qemu_memfd_create(const char *name, size_t size, unsigned int seals, - Error **errp); +int qemu_memfd_create(const char *name, size_t size, bool hugetlb, + unsigned int seals, Error **errp); void *qemu_memfd_alloc(const char *name, size_t size, unsigned int seals, int *fd, Error **errp); void qemu_memfd_free(void *ptr, size_t size, int fd); 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) { |