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-rw-r--r--exec.c1
-rw-r--r--osdep.h5
2 files changed, 6 insertions, 0 deletions
diff --git a/exec.c b/exec.c
index c4ed6fdef1..750008c4e1 100644
--- a/exec.c
+++ b/exec.c
@@ -2571,6 +2571,7 @@ ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff);
qemu_ram_setup_dump(new_block->host, size);
+ qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE);
if (kvm_enabled())
kvm_setup_guest_memory(new_block->host, size);
diff --git a/osdep.h b/osdep.h
index cb213e0295..c5fd3d91ff 100644
--- a/osdep.h
+++ b/osdep.h
@@ -108,6 +108,11 @@ void qemu_vfree(void *ptr);
#else
#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
#endif
+#ifdef MADV_HUGEPAGE
+#define QEMU_MADV_HUGEPAGE MADV_HUGEPAGE
+#else
+#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
+#endif
#elif defined(CONFIG_POSIX_MADVISE)