qemu/hw/core
Shameer Kolothum 394f0f72fd fw_cfg: Migrate ACPI table mr sizes separately
Any sub-page size update to ACPI MRs will be lost during
migration, as we use aligned size in ram_load_precopy() ->
qemu_ram_resize() path. This will result in inconsistency in
FWCfgEntry sizes between source and destination. In order to avoid
this, save and restore them separately during migration.

Up until now, this problem may not be that relevant for x86 as both
ACPI table and Linker MRs gets padded and aligned. Also at present,
qemu_ram_resize() doesn't invoke callback to update FWCfgEntry for
unaligned size changes. But since we are going to fix the
qemu_ram_resize() in the subsequent patch, the issue may become
more serious especially for RSDP MR case.

Moreover, the issue will soon become prominent in arm/virt as well
where the MRs are not padded or aligned at all and eventually have
acpi table changes as part of future additions like NVDIMM hot-add
feature.

Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Acked-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200403101827.30664-3-shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-04-13 06:55:54 -04:00
..
bus.c hw/core: deprecate old reset functions and introduce new ones 2020-01-30 16:02:04 +00:00
cpu.c x86 and machine queue for 5.0 soft freeze 2020-03-19 14:22:46 +00:00
empty_slot.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
fw-path-provider.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
generic-loader.c hw/core/loader: Let load_elf() populate a field with CPU-specific flags 2020-01-29 19:28:52 +01:00
hotplug.c call HotplugHandler->plug() as the last step in device realization 2018-10-19 13:44:12 +02:00
irq.c Revert "irq: introduce qemu_irq_proxy()" 2019-11-05 23:33:12 +01:00
Kconfig hw/core: Add a config switch for the generic loader device 2019-08-20 09:11:17 +02:00
loader-fit.c hw/core: Fix fit_load_fdt() error API violations 2019-12-18 08:36:15 +01:00
loader.c hw/core: properly terminate loading .hex on EOF record 2020-04-07 16:19:49 +01:00
machine-hmp-cmds.c hmp: drop Error pointer indirection in hmp_handle_error 2019-12-18 08:36:16 +01:00
machine-qmp-cmds.c qapi: report the default CPU type for each machine 2019-09-03 14:39:46 -03:00
machine.c fw_cfg: Migrate ACPI table mr sizes separately 2020-04-13 06:55:54 -04:00
Makefile.objs hw/*/Makefile.objs: Move many .o files to common-objs 2020-02-04 09:00:57 +01:00
nmi.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
null-machine.c null-machine: use memdev for RAM 2020-02-19 16:49:57 +00:00
numa.c remove no longer used memory_region_allocate_system_memory() 2020-02-19 16:50:01 +00:00
or-irq.c hw/core/or-irq: Fix incorrect assert forbidding num-lines == MAX_OR_LINES 2020-01-30 16:02:01 +00:00
platform-bus.c hw/core: Let devices own the MemoryRegion they create 2020-03-17 15:18:48 +01:00
ptimer.c ptimer: Remove old ptimer_init_with_bh() API 2019-11-11 13:44:16 +00:00
qdev-fw.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
qdev-properties-system.c audio: add audiodev properties to frontends 2019-08-21 09:13:37 +02:00
qdev-properties.c multifd: Add zstd compression multifd support 2020-02-28 09:25:49 +01:00
qdev.c core/qdev: fix memleak in qdev_get_gpio_out_connector() 2020-03-09 15:59:31 +01:00
register.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
reset.c qemu/queue.h: leave head structs anonymous unless necessary 2019-01-11 15:46:55 +01:00
resettable.c hw/core: deprecate old reset functions and introduce new ones 2020-01-30 16:02:04 +00:00
split-irq.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
stream.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
sysbus.c sysbus: remove unused sysbus_try_create* 2020-01-07 16:06:59 +04:00
trace-events hw/core/resettable: add support for changing parent 2020-01-30 16:02:04 +00:00
uboot_image.h Support u-boot noload images for arm as used by, NetBSD/evbarm GENERIC kernel. 2019-01-07 15:46:20 +00:00
vm-change-state-handler.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
vmstate-if.c vmstate: add qom interface to get id 2020-01-06 18:41:32 +04:00