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s390x/migration: migrate CPU state

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This patch provides the cpu save information for dumps and later life
migration and enables migration of the CPU state. The code is based on
earlier work from Christian Borntraeger and Jason Herne.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
[provide cpu_post_load()]
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Jason J. Herne <jjherne@us.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
[Cornelia Huck: tweaked cpu_post_load() comment]
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Thomas Huth 2014-09-30 10:58:42 +02:00 • committed by Cornelia Huck
parent 71dd7e69b3
commit ef1df13087
4 changed files with 82 additions and 7 deletions
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7
target-s390x/cpu.c
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@ -292,11 +292,6 @@ unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
}
#endif
static const VMStateDescription vmstate_s390_cpu = {
.name = "cpu",
.unmigratable = 1,
};
static void s390_cpu_class_init(ObjectClass *oc, void *data)
{
S390CPUClass *scc = S390_CPU_CLASS(oc);
@ -323,11 +318,11 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data)
cc->handle_mmu_fault = s390_cpu_handle_mmu_fault;
#else
cc->get_phys_page_debug = s390_cpu_get_phys_page_debug;
cc->vmsd = &vmstate_s390_cpu;
cc->write_elf64_note = s390_cpu_write_elf64_note;
cc->write_elf64_qemunote = s390_cpu_write_elf64_qemunote;
cc->cpu_exec_interrupt = s390_cpu_exec_interrupt;
#endif
dc->vmsd = &vmstate_s390_cpu;
cc->gdb_num_core_regs = S390_NUM_CORE_REGS;
cc->gdb_core_xml_file = "s390x-core64.xml";
}