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s390x: move fpu regs into a subsection of the vmstate 

Let's move the floating point registers into a seperate subsection and
bump up the version id. This cleans up the current vmstate and will
allow for a future extension with vector registers in a compatible way.

This patch is based on a patch from Eric Farman.

Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
David Hildenbrand 2015-03-30 13:22:47 +02:00 committed by Cornelia Huck
parent 1191c94963
commit 46c804def4
1 changed files with 29 additions and 7 deletions
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36
target-s390x/machine.c
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@ -33,12 +33,11 @@ static int cpu_post_load(void *opaque, int version_id)
return 0;
}
const VMStateDescription vmstate_s390_cpu = {
.name = "cpu",
.post_load = cpu_post_load,
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
const VMStateDescription vmstate_fpu = {
.name = "cpu/fpu",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.fregs[0].ll, S390CPU),
VMSTATE_UINT64(env.fregs[1].ll, S390CPU),
VMSTATE_UINT64(env.fregs[2].ll, S390CPU),
@ -55,11 +54,26 @@ const VMStateDescription vmstate_s390_cpu = {
VMSTATE_UINT64(env.fregs[13].ll, S390CPU),
VMSTATE_UINT64(env.fregs[14].ll, S390CPU),
VMSTATE_UINT64(env.fregs[15].ll, S390CPU),
VMSTATE_UINT32(env.fpc, S390CPU),
VMSTATE_END_OF_LIST()
}
};
static inline bool fpu_needed(void *opaque)
{
return true;
}
const VMStateDescription vmstate_s390_cpu = {
.name = "cpu",
.post_load = cpu_post_load,
.version_id = 3,
.minimum_version_id = 3,
.fields = (VMStateField[]) {
VMSTATE_UINT64_ARRAY(env.regs, S390CPU, 16),
VMSTATE_UINT64(env.psw.mask, S390CPU),
VMSTATE_UINT64(env.psw.addr, S390CPU),
VMSTATE_UINT64(env.psa, S390CPU),
VMSTATE_UINT32(env.fpc, S390CPU),
VMSTATE_UINT32(env.todpr, S390CPU),
VMSTATE_UINT64(env.pfault_token, S390CPU),
VMSTATE_UINT64(env.pfault_compare, S390CPU),
@ -74,4 +88,12 @@ const VMStateDescription vmstate_s390_cpu = {
VMSTATE_UINT8(env.sigp_order, S390CPU),
VMSTATE_END_OF_LIST()
},
.subsections = (VMStateSubsection[]) {
{
.vmsd = &vmstate_fpu,
.needed = fpu_needed,
} , {
/* empty */
}
},
};