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author | David Hildenbrand <david@redhat.com> | 2021-05-10 13:43:20 +0200 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-15 20:27:38 +0200 |
commit | b444f5c079fdb8019d2c59ffa6b67069e857f4e1 (patch) | |
tree | 83e9c285a457e6e02cae8d47b6c97335b2a9f1b7 /module-common.c | |
parent | ebef62d0e527d4a021f94a405fb38db263f3c4a5 (diff) |
util/mmap-alloc: Pass flags instead of separate bools to qemu_ram_mmap()
Let's pass flags instead of bools to prepare for passing other flags and
update the documentation of qemu_ram_mmap(). Introduce new QEMU_MAP_
flags that abstract the mmap() PROT_ and MAP_ flag handling and simplify
it.
We expose only flags that are currently supported by qemu_ram_mmap().
Maybe, we'll see qemu_mmap() in the future as well that can implement these
flags.
Note: We don't use MAP_ flags as some flags (e.g., MAP_SYNC) are only
defined for some systems and we want to always be able to identify
these flags reliably inside qemu_ram_mmap() -- for example, to properly
warn when some future flags are not available or effective on a system.
Also, this way we can simplify PROT_ handling as well.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com> for memory backend and machine core
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210510114328.21835-8-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'module-common.c')
0 files changed, 0 insertions, 0 deletions