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softmmu/memory: Pass ram_flags to qemu_ram_alloc_from_fd()

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Let's pass in ram flags just like we do with qemu_ram_alloc_from_file(),
to clean up and prepare for more flags.

Simplify the documentation of passed ram flags: Looking at our
documentation of RAM_SHARED and RAM_PMEM is sufficient, no need to be
repetitive.

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: <20210510114328.21835-5-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Hildenbrand 2021-05-10 13:43:17 +02:00 • committed by Paolo Bonzini
parent d01cbf82ce
commit d5015b8013
5 changed files with 13 additions and 21 deletions
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6
include/exec/ram_addr.h
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@ -104,11 +104,7 @@ long qemu_maxrampagesize(void);
* Parameters:
* @size: the size in bytes of the ram block
* @mr: the memory region where the ram block is
* @ram_flags: specify the properties of the ram block, which can be one
* or bit-or of following values
* - RAM_SHARED: mmap the backing file or device with MAP_SHARED
* - RAM_PMEM: the backend @mem_path or @fd is persistent memory
* Other bits are ignored.
* @ram_flags: RamBlock flags. Supported flags: RAM_SHARED, RAM_PMEM.
* @mem_path or @fd: specify the backing file or device
* @readonly: true to open @path for reading, false for read/write.
* @errp: pointer to Error*, to store an error if it happens