cpu: Move host_tid field to CPUState

Change gdbstub's cpu_index() argument to CPUState now that CPUArchState
is no longer used.

Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu: Move running field to CPUState

Pass CPUState to cpu_exec_{start,end}() functions.

Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu: Move exit_request field to CPUState

Since it was located before breakpoints field, it needs to be reset.

Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu: Move current_tb field to CPUState

Explictly NULL it on CPU reset since it was located before breakpoints.

Change vapic_report_tpr_access() argument to CPUState. This also
resolves the use of void* for cpu.h independence.
Change vAPIC patch_instruction() argument to X86CPU.

Signed-off-by: Andreas Färber <afaerber@suse.de>
cputlb: Pass CPUState to cpu_unlink_tb()

CPUArchState is no longer needed.

Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu: Add CPUArchState pointer to CPUState

The target-specific ENV_GET_CPU() macros have allowed us to navigate
from CPUArchState to CPUState. The reverse direction was not supported.
Avoid introducing CPU_GET_ENV() macros by initializing an untyped
pointer that is initialized in derived instance_init functions.

The field may not be called "env" due to it being poisoned.

Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
target-i386: Move cpu_x86_init()

Consolidate CPU functions in cpu.c.
Allows to make cpu_x86_register() static.

No functional changes.

Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>