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fdb63cf3b5
Following the example documented since commit e3fe3988d7 ("error:
Document Error API usage rules"), have HostMemoryBackendClass::alloc
return a boolean indicating whether an error is set or not.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Message-Id: <20231120213301.24349-17-philmd@linaro.org>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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* QEMU Host Memory Backend
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*
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* Copyright (C) 2013-2014 Red Hat Inc
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*
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* Authors:
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* Igor Mammedov <imammedo@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "sysemu/hostmem.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "qom/object_interfaces.h"
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static bool
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ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
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{
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g_autofree char *name = NULL;
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uint32_t ram_flags;
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if (!backend->size) {
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error_setg(errp, "can't create backend with size 0");
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return false;
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}
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name = host_memory_backend_get_name(backend);
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ram_flags = backend->share ? RAM_SHARED : 0;
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ram_flags |= backend->reserve ? 0 : RAM_NORESERVE;
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return memory_region_init_ram_flags_nomigrate(&backend->mr, OBJECT(backend),
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name, backend->size,
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ram_flags, errp);
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}
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static void
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ram_backend_class_init(ObjectClass *oc, void *data)
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{
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HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
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bc->alloc = ram_backend_memory_alloc;
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}
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static const TypeInfo ram_backend_info = {
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.name = TYPE_MEMORY_BACKEND_RAM,
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.parent = TYPE_MEMORY_BACKEND,
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.class_init = ram_backend_class_init,
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};
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static void register_types(void)
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{
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type_register_static(&ram_backend_info);
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}
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type_init(register_types);
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