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util/mmap-alloc: Add a 'is_pmem' parameter to qemu_ram_mmap

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besides the existing 'shared' flags, we are going to add
'is_pmem' to qemu_ram_mmap(), which indicated the memory backend
file is a persist memory.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Signed-off-by: Zhang Yi <yi.z.zhang@linux.intel.com>
Reviewed-by: Pankaj Gupta <pagupta@redhat.com>
Message-Id: <786c46862cfeb253ee0ea2f44d62ffe76edb7fa4.1549555521.git.yi.z.zhang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Pankaj Gupta <pagupta@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Zhang Yi 2019-02-08 18:10:37 +08:00 • committed by Eduardo Habkost
parent 5b863f3e2f
commit 2ac0f1621c
4 changed files with 27 additions and 4 deletions
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2
util/oslib-posix.c
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@ -203,7 +203,7 @@ void *qemu_memalign(size_t alignment, size_t size)
void *qemu_anon_ram_alloc(size_t size, uint64_t *alignment, bool shared)
{
size_t align = QEMU_VMALLOC_ALIGN;
void *ptr = qemu_ram_mmap(-1, size, align, shared);
void *ptr = qemu_ram_mmap(-1, size, align, shared, false);
if (ptr == MAP_FAILED) {
return NULL;