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vmstate: error hint for failed equal checks

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In some cases a failing VMSTATE_*_EQUAL does not mean we detected a bug,
but it's actually the best we can do. Especially in these cases a verbose
error message is required.

Let's introduce infrastructure for specifying a error hint to be used if
equal check fails. Let's do this by adding a parameter to the _EQUAL
macros called _err_hint. Also change all current users to pass NULL as
last parameter so nothing changes for them.

Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>

Message-Id: <20170623144823.42936-1-pasic@linux.vnet.ibm.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Halil Pasic 2017-06-23 16:48:23 +02:00 • committed by Juan Quintela
parent 01f6e14c78
commit d2164ad35c
20 changed files with 74 additions and 40 deletions
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8
target/ppc/machine.c
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@ -419,7 +419,7 @@ static const VMStateDescription vmstate_slb = {
.needed = slb_needed,
.post_load = slb_post_load,
.fields = (VMStateField[]) {
VMSTATE_INT32_EQUAL(env.slb_nr, PowerPCCPU),
VMSTATE_INT32_EQUAL(env.slb_nr, PowerPCCPU, NULL),
VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES),
VMSTATE_END_OF_LIST()
}
@ -452,7 +452,7 @@ static const VMStateDescription vmstate_tlb6xx = {
.minimum_version_id = 1,
.needed = tlb6xx_needed,
.fields = (VMStateField[]) {
VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU, NULL),
VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlb6, PowerPCCPU,
env.nb_tlb,
vmstate_tlb6xx_entry,
@ -510,7 +510,7 @@ static const VMStateDescription vmstate_tlbemb = {
.minimum_version_id = 1,
.needed = tlbemb_needed,
.fields = (VMStateField[]) {
VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU, NULL),
VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbe, PowerPCCPU,
env.nb_tlb,
vmstate_tlbemb_entry,
@ -551,7 +551,7 @@ static const VMStateDescription vmstate_tlbmas = {
.minimum_version_id = 1,
.needed = tlbmas_needed,
.fields = (VMStateField[]) {
VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU, NULL),
VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbm, PowerPCCPU,
env.nb_tlb,
vmstate_tlbmas_entry,