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target/hppa: Adjust vmstate_env for pa2.0 tlb

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Split out the tlb to a subsection so that it can be separately
versioned -- the format is only partially following the architecture
and is partially guided by the qemu implementation.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-10-26 10:42:21 -07:00
parent 967662cd5a
commit ea6c40b0f1
1 changed files with 57 additions and 36 deletions
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93
target/hppa/machine.c
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@ -44,28 +44,30 @@ static const VMStateInfo vmstate_psw = {
.put = put_psw,
};
/* FIXME: Use the PA2.0 format, which is a superset of the PA1.1 format. */
static int get_tlb(QEMUFile *f, void *opaque, size_t size,
const VMStateField *field)
{
HPPATLBEntry *ent = opaque;
uint32_t val;
uint64_t val;
ent->itree.start = qemu_get_be64(f);
ent->itree.last = qemu_get_be64(f);
ent->pa = qemu_get_be64(f);
val = qemu_get_be32(f);
val = qemu_get_be64(f);
ent->entry_valid = extract32(val, 0, 1);
ent->access_id = extract32(val, 1, 18);
ent->u = extract32(val, 19, 1);
ent->ar_pl2 = extract32(val, 20, 2);
ent->ar_pl1 = extract32(val, 22, 2);
ent->ar_type = extract32(val, 24, 3);
ent->b = extract32(val, 27, 1);
ent->d = extract32(val, 28, 1);
ent->t = extract32(val, 29, 1);
ent->itree.last = ent->itree.start + TARGET_PAGE_SIZE - 1;
if (val) {
ent->t = extract64(val, 61, 1);
ent->d = extract64(val, 60, 1);
ent->b = extract64(val, 59, 1);
ent->ar_type = extract64(val, 56, 3);
ent->ar_pl1 = extract64(val, 54, 2);
ent->ar_pl2 = extract64(val, 52, 2);
ent->u = extract64(val, 51, 1);
/* o = bit 50 */
/* p = bit 49 */
ent->access_id = extract64(val, 1, 31);
ent->entry_valid = 1;
}
return 0;
}
@ -73,27 +75,30 @@ static int put_tlb(QEMUFile *f, void *opaque, size_t size,
const VMStateField *field, JSONWriter *vmdesc)
{
HPPATLBEntry *ent = opaque;
uint32_t val = 0;
uint64_t val = 0;
if (ent->entry_valid) {
val = 1;
val = deposit32(val, 1, 18, ent->access_id);
val = deposit32(val, 19, 1, ent->u);
val = deposit32(val, 20, 2, ent->ar_pl2);
val = deposit32(val, 22, 2, ent->ar_pl1);
val = deposit32(val, 24, 3, ent->ar_type);
val = deposit32(val, 27, 1, ent->b);
val = deposit32(val, 28, 1, ent->d);
val = deposit32(val, 29, 1, ent->t);
val = deposit64(val, 61, 1, ent->t);
val = deposit64(val, 60, 1, ent->d);
val = deposit64(val, 59, 1, ent->b);
val = deposit64(val, 56, 3, ent->ar_type);
val = deposit64(val, 54, 2, ent->ar_pl1);
val = deposit64(val, 52, 2, ent->ar_pl2);
val = deposit64(val, 51, 1, ent->u);
/* o = bit 50 */
/* p = bit 49 */
val = deposit64(val, 1, 31, ent->access_id);
}
qemu_put_be64(f, ent->itree.start);
qemu_put_be64(f, ent->itree.last);
qemu_put_be64(f, ent->pa);
qemu_put_be32(f, val);
qemu_put_be64(f, val);
return 0;
}
static const VMStateInfo vmstate_tlb = {
static const VMStateInfo vmstate_tlb_entry = {
.name = "tlb entry",
.get = get_tlb,
.put = put_tlb,
@ -147,7 +152,24 @@ static int tlb_post_load(void *opaque, int version_id)
return 0;
}
static VMStateField vmstate_env_fields[] = {
static const VMStateField vmstate_tlb_fields[] = {
VMSTATE_ARRAY(tlb, CPUHPPAState,
ARRAY_SIZE(((CPUHPPAState *)0)->tlb),
0, vmstate_tlb_entry, HPPATLBEntry),
VMSTATE_UINT32(tlb_last, CPUHPPAState),
VMSTATE_END_OF_LIST()
};
static const VMStateDescription vmstate_tlb = {
.name = "env/tlb",
.version_id = 1,
.minimum_version_id = 1,
.fields = vmstate_tlb_fields,
.pre_load = tlb_pre_load,
.post_load = tlb_post_load,
};
static const VMStateField vmstate_env_fields[] = {
VMSTATE_UINT64_ARRAY(gr, CPUHPPAState, 32),
VMSTATE_UINT64_ARRAY(fr, CPUHPPAState, 32),
VMSTATE_UINT64_ARRAY(sr, CPUHPPAState, 8),
@ -176,24 +198,23 @@ static VMStateField vmstate_env_fields[] = {
VMSTATE_UINT64(iasq_b, CPUHPPAState),
VMSTATE_UINT32(fr0_shadow, CPUHPPAState),
VMSTATE_ARRAY(tlb, CPUHPPAState, ARRAY_SIZE(((CPUHPPAState *)0)->tlb),
0, vmstate_tlb, HPPATLBEntry),
VMSTATE_UINT32(tlb_last, CPUHPPAState),
VMSTATE_END_OF_LIST()
};
static const VMStateDescription *vmstate_env_subsections[] = {
&vmstate_tlb,
NULL
};
static const VMStateDescription vmstate_env = {
.name = "env",
.version_id = 2,
.minimum_version_id = 2,
.version_id = 3,
.minimum_version_id = 3,
.fields = vmstate_env_fields,
.pre_load = tlb_pre_load,
.post_load = tlb_post_load,
.subsections = vmstate_env_subsections,
};
static VMStateField vmstate_cpu_fields[] = {
static const VMStateField vmstate_cpu_fields[] = {
VMSTATE_CPU(),
VMSTATE_STRUCT(env, HPPACPU, 1, vmstate_env, CPUHPPAState),
VMSTATE_END_OF_LIST()