From f816a62daa05ae3b973c76834be7f319b2d02f03 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 2 Jun 2014 15:25:23 +0200 Subject: pc: migrate piix4 & ich9 MemHotplugState Adds an optional subsection that allows to migrate current state of acpi_memory_hotplug of ACPI PM device. Signed-off-by: Igor Mammedov Acked-by: Peter Crosthwaite Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/ich9.c | 24 ++++++++++++++++++++++++ hw/acpi/memory_hotplug.c | 27 +++++++++++++++++++++++++++ hw/acpi/piix4.c | 24 ++++++++++++++++++++++++ 3 files changed, 75 insertions(+) (limited to 'hw/acpi') diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c index a818bed0fb..0ecc241458 100644 --- a/hw/acpi/ich9.c +++ b/hw/acpi/ich9.c @@ -140,6 +140,23 @@ static int ich9_pm_post_load(void *opaque, int version_id) .offset = vmstate_offset_pointer(_state, _field, uint8_t), \ } +static bool vmstate_test_use_memhp(void *opaque) +{ + ICH9LPCPMRegs *s = opaque; + return s->acpi_memory_hotplug.is_enabled; +} + +static const VMStateDescription vmstate_memhp_state = { + .name = "ich9_pm/memhp", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, ICH9LPCPMRegs), + VMSTATE_END_OF_LIST() + } +}; + const VMStateDescription vmstate_ich9_pm = { .name = "ich9_pm", .version_id = 1, @@ -156,6 +173,13 @@ const VMStateDescription vmstate_ich9_pm = { VMSTATE_UINT32(smi_en, ICH9LPCPMRegs), VMSTATE_UINT32(smi_sts, ICH9LPCPMRegs), VMSTATE_END_OF_LIST() + }, + .subsections = (VMStateSubsection[]) { + { + .vmsd = &vmstate_memhp_state, + .needed = vmstate_test_use_memhp, + }, + VMSTATE_END_OF_LIST() } }; diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c index 8944ad358a..71c7a5e83f 100644 --- a/hw/acpi/memory_hotplug.c +++ b/hw/acpi/memory_hotplug.c @@ -158,3 +158,30 @@ void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st, acpi_update_sci(ar, irq); return; } + +static const VMStateDescription vmstate_memhp_sts = { + .name = "memory hotplug device state", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_BOOL(is_enabled, MemStatus), + VMSTATE_BOOL(is_inserting, MemStatus), + VMSTATE_UINT32(ost_event, MemStatus), + VMSTATE_UINT32(ost_status, MemStatus), + VMSTATE_END_OF_LIST() + } +}; + +const VMStateDescription vmstate_memory_hotplug = { + .name = "memory hotplug state", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(selector, MemHotplugState), + VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, MemHotplugState, dev_count, + vmstate_memhp_sts, MemStatus), + VMSTATE_END_OF_LIST() + } +}; diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 5c542b764b..17627ee675 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -248,6 +248,23 @@ static bool vmstate_test_no_use_acpi_pci_hotplug(void *opaque, int version_id) return !s->use_acpi_pci_hotplug; } +static bool vmstate_test_use_memhp(void *opaque) +{ + PIIX4PMState *s = opaque; + return s->acpi_memory_hotplug.is_enabled; +} + +static const VMStateDescription vmstate_memhp_state = { + .name = "piix4_pm/memhp", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, PIIX4PMState), + VMSTATE_END_OF_LIST() + } +}; + /* qemu-kvm 1.2 uses version 3 but advertised as 2 * To support incoming qemu-kvm 1.2 migration, change version_id * and minimum_version_id to 2 below (which breaks migration from @@ -279,6 +296,13 @@ static const VMStateDescription vmstate_acpi = { VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState, vmstate_test_use_acpi_pci_hotplug), VMSTATE_END_OF_LIST() + }, + .subsections = (VMStateSubsection[]) { + { + .vmsd = &vmstate_memhp_state, + .needed = vmstate_test_use_memhp, + }, + VMSTATE_END_OF_LIST() } }; -- cgit v1.2.3