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3cda44f7ba
This patch adds support to migrate vcpu interrupts. We use ioctl KVM_S390_GET_IRQ_STATE and _SET_IRQ_STATE to get/set the complete interrupt state for a vcpu. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/*
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* S390x machine definitions and functions
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*
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* Copyright IBM Corp. 2014
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*
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* Authors:
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* Thomas Huth <thuth@linux.vnet.ibm.com>
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* Christian Borntraeger <borntraeger@de.ibm.com>
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* Jason J. Herne <jjherne@us.ibm.com>
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*
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* This work is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*/
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#include "hw/hw.h"
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#include "cpu.h"
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#include "sysemu/kvm.h"
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static int cpu_post_load(void *opaque, int version_id)
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{
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S390CPU *cpu = opaque;
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/*
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* As the cpu state is pushed to kvm via kvm_set_mp_state rather
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* than via cpu_synchronize_state, we need update kvm here.
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*/
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if (kvm_enabled()) {
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kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state);
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return kvm_s390_vcpu_interrupt_post_load(cpu);
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}
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return 0;
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}
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static void cpu_pre_save(void *opaque)
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{
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S390CPU *cpu = opaque;
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if (kvm_enabled()) {
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kvm_s390_vcpu_interrupt_pre_save(cpu);
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}
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}
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const VMStateDescription vmstate_fpu = {
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.name = "cpu/fpu",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = (VMStateField[]) {
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VMSTATE_UINT64(env.fregs[0].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[1].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[2].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[3].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[4].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[5].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[6].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[7].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[8].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[9].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[10].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[11].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[12].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[13].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[14].ll, S390CPU),
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VMSTATE_UINT64(env.fregs[15].ll, S390CPU),
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VMSTATE_UINT32(env.fpc, S390CPU),
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VMSTATE_END_OF_LIST()
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}
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};
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static inline bool fpu_needed(void *opaque)
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{
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return true;
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}
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const VMStateDescription vmstate_s390_cpu = {
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.name = "cpu",
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.post_load = cpu_post_load,
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.pre_save = cpu_pre_save,
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.version_id = 4,
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.minimum_version_id = 3,
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.fields = (VMStateField[]) {
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VMSTATE_UINT64_ARRAY(env.regs, S390CPU, 16),
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VMSTATE_UINT64(env.psw.mask, S390CPU),
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VMSTATE_UINT64(env.psw.addr, S390CPU),
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VMSTATE_UINT64(env.psa, S390CPU),
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VMSTATE_UINT32(env.todpr, S390CPU),
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VMSTATE_UINT64(env.pfault_token, S390CPU),
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VMSTATE_UINT64(env.pfault_compare, S390CPU),
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VMSTATE_UINT64(env.pfault_select, S390CPU),
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VMSTATE_UINT64(env.cputm, S390CPU),
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VMSTATE_UINT64(env.ckc, S390CPU),
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VMSTATE_UINT64(env.gbea, S390CPU),
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VMSTATE_UINT64(env.pp, S390CPU),
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VMSTATE_UINT32_ARRAY(env.aregs, S390CPU, 16),
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VMSTATE_UINT64_ARRAY(env.cregs, S390CPU, 16),
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VMSTATE_UINT8(env.cpu_state, S390CPU),
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VMSTATE_UINT8(env.sigp_order, S390CPU),
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VMSTATE_UINT32_V(irqstate_saved_size, S390CPU, 4),
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VMSTATE_VBUFFER_UINT32(irqstate, S390CPU, 4, NULL, 0,
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irqstate_saved_size),
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VMSTATE_END_OF_LIST()
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},
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.subsections = (VMStateSubsection[]) {
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{
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.vmsd = &vmstate_fpu,
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.needed = fpu_needed,
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} , {
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/* empty */
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}
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},
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};
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