From aa8b183974b27d4dc025905eb869a1941e85e17d Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 19 Feb 2020 11:08:36 -0500 Subject: machine: introduce memory-backend property MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Property will contain link to memory backend that will be used for backing initial RAM. Follow up commit will alias -mem-path and -mem-prealloc CLI options into memory backend options to make memory handling consistent (using only hostmem backend family for guest RAM allocation). Signed-off-by: Igor Mammedov Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20200219160953.13771-3-imammedo@redhat.com> --- hw/core/machine.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'hw/core') diff --git a/hw/core/machine.c b/hw/core/machine.c index 84812a1..1a6e485 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -508,6 +508,22 @@ static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque) } } +static char *machine_get_memdev(Object *obj, Error **errp) +{ + MachineState *ms = MACHINE(obj); + + return g_strdup(ms->ram_memdev_id); +} + +static void machine_set_memdev(Object *obj, const char *value, Error **errp) +{ + MachineState *ms = MACHINE(obj); + + g_free(ms->ram_memdev_id); + ms->ram_memdev_id = g_strdup(value); +} + + static void machine_init_notify(Notifier *notifier, void *data) { MachineState *machine = MACHINE(qdev_get_machine()); @@ -889,6 +905,14 @@ static void machine_initfn(Object *obj) "Table (HMAT)", NULL); } + object_property_add_str(obj, "memory-backend", + machine_get_memdev, machine_set_memdev, + &error_abort); + object_property_set_description(obj, "memory-backend", + "Set RAM backend" + "Valid value is ID of hostmem based backend", + &error_abort); + /* Register notifier when init is done for sysbus sanity checks */ ms->sysbus_notifier.notify = machine_init_notify; qemu_add_machine_init_done_notifier(&ms->sysbus_notifier); -- cgit v1.1