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migration/i386: Remove support for pre-0.12 formats

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Remove support for versions of the CPU state prior to 11
which is the version used in qemu 0.12 - you'd be pretty
lucky if you got a migration stream to work from anything
that old anyway.  This doesn't affect the machine type
definition in any way.

My main reason for doing this is the hack for sysenter_esp/eip
that uses .get/.put's in state versions less than 7 (that's
prior to somewhere before 0.10).

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20170405190024.27581-4-dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2017-04-05 20:00:24 +01:00 committed by Eduardo Habkost
parent ab808276f8
commit 08b277ac46
1 changed files with 32 additions and 79 deletions
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111
target/i386/machine.c
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@ -178,44 +178,6 @@ static const VMStateDescription vmstate_fpreg = {
}
};
static bool version_is_5(void *opaque, int version_id)
{
return version_id == 5;
}
#ifdef TARGET_X86_64
static bool less_than_7(void *opaque, int version_id)
{
return version_id < 7;
}
static int get_uint64_as_uint32(QEMUFile *f, void *pv, size_t size,
VMStateField *field)
{
uint64_t *v = pv;
*v = qemu_get_be32(f);
return 0;
}
static int put_uint64_as_uint32(QEMUFile *f, void *pv, size_t size,
VMStateField *field, QJSON *vmdesc)
{
uint64_t *v = pv;
qemu_put_be32(f, *v);
return 0;
}
static const VMStateInfo vmstate_hack_uint64_as_uint32 = {
.name = "uint64_as_uint32",
.get = get_uint64_as_uint32,
.put = put_uint64_as_uint32,
};
#define VMSTATE_HACK_UINT32(_f, _s, _t) \
VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint64_as_uint32, uint64_t)
#endif
static void cpu_pre_save(void *opaque)
{
X86CPU *cpu = opaque;
@ -842,7 +804,7 @@ static const VMStateDescription vmstate_mcg_ext_ctl = {
VMStateDescription vmstate_x86_cpu = {
.name = "cpu",
.version_id = 12,
.minimum_version_id = 3,
.minimum_version_id = 11,
.pre_save = cpu_pre_save,
.post_load = cpu_post_load,
.fields = (VMStateField[]) {
@ -865,16 +827,8 @@ VMStateDescription vmstate_x86_cpu = {
VMSTATE_SEGMENT(env.idt, X86CPU),
VMSTATE_UINT32(env.sysenter_cs, X86CPU),
#ifdef TARGET_X86_64
/* Hack: In v7 size changed from 32 to 64 bits on x86_64 */
VMSTATE_HACK_UINT32(env.sysenter_esp, X86CPU, less_than_7),
VMSTATE_HACK_UINT32(env.sysenter_eip, X86CPU, less_than_7),
VMSTATE_UINTTL_V(env.sysenter_esp, X86CPU, 7),
VMSTATE_UINTTL_V(env.sysenter_eip, X86CPU, 7),
#else
VMSTATE_UINTTL(env.sysenter_esp, X86CPU),
VMSTATE_UINTTL(env.sysenter_eip, X86CPU),
#endif
VMSTATE_UINTTL(env.cr[0], X86CPU),
VMSTATE_UINTTL(env.cr[2], X86CPU),
@ -895,46 +849,45 @@ VMStateDescription vmstate_x86_cpu = {
VMSTATE_UINT64(env.fmask, X86CPU),
VMSTATE_UINT64(env.kernelgsbase, X86CPU),
#endif
VMSTATE_UINT32_V(env.smbase, X86CPU, 4),
VMSTATE_UINT32(env.smbase, X86CPU),
VMSTATE_UINT64_V(env.pat, X86CPU, 5),
VMSTATE_UINT32_V(env.hflags2, X86CPU, 5),
VMSTATE_UINT64(env.pat, X86CPU),
VMSTATE_UINT32(env.hflags2, X86CPU),
VMSTATE_UINT32_TEST(parent_obj.halted, X86CPU, version_is_5),
VMSTATE_UINT64_V(env.vm_hsave, X86CPU, 5),
VMSTATE_UINT64_V(env.vm_vmcb, X86CPU, 5),
VMSTATE_UINT64_V(env.tsc_offset, X86CPU, 5),
VMSTATE_UINT64_V(env.intercept, X86CPU, 5),
VMSTATE_UINT16_V(env.intercept_cr_read, X86CPU, 5),
VMSTATE_UINT16_V(env.intercept_cr_write, X86CPU, 5),
VMSTATE_UINT16_V(env.intercept_dr_read, X86CPU, 5),
VMSTATE_UINT16_V(env.intercept_dr_write, X86CPU, 5),
VMSTATE_UINT32_V(env.intercept_exceptions, X86CPU, 5),
VMSTATE_UINT8_V(env.v_tpr, X86CPU, 5),
VMSTATE_UINT64(env.vm_hsave, X86CPU),
VMSTATE_UINT64(env.vm_vmcb, X86CPU),
VMSTATE_UINT64(env.tsc_offset, X86CPU),
VMSTATE_UINT64(env.intercept, X86CPU),
VMSTATE_UINT16(env.intercept_cr_read, X86CPU),
VMSTATE_UINT16(env.intercept_cr_write, X86CPU),
VMSTATE_UINT16(env.intercept_dr_read, X86CPU),
VMSTATE_UINT16(env.intercept_dr_write, X86CPU),
VMSTATE_UINT32(env.intercept_exceptions, X86CPU),
VMSTATE_UINT8(env.v_tpr, X86CPU),
/* MTRRs */
VMSTATE_UINT64_ARRAY_V(env.mtrr_fixed, X86CPU, 11, 8),
VMSTATE_UINT64_V(env.mtrr_deftype, X86CPU, 8),
VMSTATE_UINT64_ARRAY(env.mtrr_fixed, X86CPU, 11),
VMSTATE_UINT64(env.mtrr_deftype, X86CPU),
VMSTATE_MTRR_VARS(env.mtrr_var, X86CPU, MSR_MTRRcap_VCNT, 8),
/* KVM-related states */
VMSTATE_INT32_V(env.interrupt_injected, X86CPU, 9),
VMSTATE_UINT32_V(env.mp_state, X86CPU, 9),
VMSTATE_UINT64_V(env.tsc, X86CPU, 9),
VMSTATE_INT32_V(env.exception_injected, X86CPU, 11),
VMSTATE_UINT8_V(env.soft_interrupt, X86CPU, 11),
VMSTATE_UINT8_V(env.nmi_injected, X86CPU, 11),
VMSTATE_UINT8_V(env.nmi_pending, X86CPU, 11),
VMSTATE_UINT8_V(env.has_error_code, X86CPU, 11),
VMSTATE_UINT32_V(env.sipi_vector, X86CPU, 11),
VMSTATE_INT32(env.interrupt_injected, X86CPU),
VMSTATE_UINT32(env.mp_state, X86CPU),
VMSTATE_UINT64(env.tsc, X86CPU),
VMSTATE_INT32(env.exception_injected, X86CPU),
VMSTATE_UINT8(env.soft_interrupt, X86CPU),
VMSTATE_UINT8(env.nmi_injected, X86CPU),
VMSTATE_UINT8(env.nmi_pending, X86CPU),
VMSTATE_UINT8(env.has_error_code, X86CPU),
VMSTATE_UINT32(env.sipi_vector, X86CPU),
/* MCE */
VMSTATE_UINT64_V(env.mcg_cap, X86CPU, 10),
VMSTATE_UINT64_V(env.mcg_status, X86CPU, 10),
VMSTATE_UINT64_V(env.mcg_ctl, X86CPU, 10),
VMSTATE_UINT64_ARRAY_V(env.mce_banks, X86CPU, MCE_BANKS_DEF * 4, 10),
VMSTATE_UINT64(env.mcg_cap, X86CPU),
VMSTATE_UINT64(env.mcg_status, X86CPU),
VMSTATE_UINT64(env.mcg_ctl, X86CPU),
VMSTATE_UINT64_ARRAY(env.mce_banks, X86CPU, MCE_BANKS_DEF * 4),
/* rdtscp */
VMSTATE_UINT64_V(env.tsc_aux, X86CPU, 11),
VMSTATE_UINT64(env.tsc_aux, X86CPU),
/* KVM pvclock msr */
VMSTATE_UINT64_V(env.system_time_msr, X86CPU, 11),
VMSTATE_UINT64_V(env.wall_clock_msr, X86CPU, 11),
VMSTATE_UINT64(env.system_time_msr, X86CPU),
VMSTATE_UINT64(env.wall_clock_msr, X86CPU),
/* XSAVE related fields */
VMSTATE_UINT64_V(env.xcr0, X86CPU, 12),
VMSTATE_UINT64_V(env.xstate_bv, X86CPU, 12),