Implement alphabetical listing of CPU subclasses.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NRichard Henderson <rth@twiddle.net>

Make TYPE_ALPHA_CPU abstract and add types <name>-alpha-cpu.
Use type inheritence, and turn "2*" models into aliases.

Move cpu_alpha_init() to cpu.c and split out CPU realization.
Default to creating type "ev67-alpha-cpu" as before.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NRichard Henderson <rth@twiddle.net>

Move the timer from CPUAlphaState to AlphaCPU to avoid the pointer being
zero'ed once we implement reset. Would cause a segfault in
sys_helper.c:helper_set_alarm().

This also simplifies timer initialization in Typhoon.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NRichard Henderson <rth@twiddle.net>

Replace cpu_init() macro with inline function for backwards
compatibility.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NRichard Henderson <rth@twiddle.net>

These fields are no longer (or were never?) used.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

For target-mips also change the return type to bool.

Make include paths for cpu-qom.h consistent for alpha and unicore32.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
[AF: Updated new target-openrisc function accordingly]
Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)

target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are
reserved) and its purpose doesn't match the name (most target_phys_addr_t
addresses are not target specific).  Replace it with a finger-friendly,
standards conformant hwaddr.

Outstanding patchsets can be fixed up with the command

  git rebase -i --exec 'find -name "*.[ch]"
                        | xargs s/target_phys_addr_t/hwaddr/g' origin
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Embed CPUAlphaState as first member of AlphaCPU.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NRichard Henderson <rth@twiddle.net>

Use uintptr_t instead of void * or unsigned long in
several op related functions, env->mem_io_pc and
GETPC() macro.
Reviewed-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

The official spelling is QEMU.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NAndreas Färber <afaerber@suse.de>
[blauwirbel@gmail.com: fixed comment style in hw/sun4m.c]
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This softfp feature post-dates the last major update to the Alpha
fpu translation.  We can make use of this to eliminate at least
one helper function that was performing this operation by hand.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Scripted conversion:
  for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do
    sed -i "s/CPUState/CPUArchState/g" $file
  done

All occurrences of CPUArchState are expected to be replaced by QOM CPUState,
once all targets are QOM'ified and common fields have been extracted.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>

Scripted conversion:
  sed -i "s/CPUState/CPUAlphaState/g" target-alpha/*.[hc]
  sed -i "s/#define CPUAlphaState/#define CPUState/" target-alpha/cpu.h
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NAnthony Liguori <aliguori@us.ibm.com>

The change in cpu.h is needed when HOST_LONG_BITS is defined in qemu-common.h.

Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: NStefan Weil <sw@weilnetz.de>

The alarm is a fully general one-shot time comparator, which will be
usable under Linux as a hrtimer source.  It's much more flexible than
the RTC source available on real hardware.

The wall clock allows the guest access to the host timekeeping.  Much
like the KVM wall clock source for other guests.

Both are accessed via the PALcode Cserve entry point.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Parameter is_softmmu (and its evil mutant twin brother is_softmuu)
is not used in cpu_*_handle_mmu_fault() functions, remove them
and adjust callers.
Acked-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

cea5f9a2 exposed bugs in unassigned memory
access handling. Fix them by always passing CPUState to the handlers.
Reported-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Remove the include of setjmp.h from the cpu.h of target-alpha
and target-ppc. This is unnecessary because cpu-defs.h already
includes this header; this change brings these two targets
into line with all the rest.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move functions cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h. This is
needed by later patches.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Reads the page table how PALcode would, except that the virtual
page table base register is not used.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Interrupts are disabled in PALmode, and when the PS IL is high enough.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

We had two different methods in use, both of which referenced ENV,
and neither of which indicated to the generic code when different
compilation modes are not compatible.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

These aren't actually used yet, but we can at least access
them via the HW_MFPR and HW_MTPR instructions.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

The EXC_M_* constants were being set for the EV6, not as set for
the Unix kernel entry point.

Use PS_USER_MODE instead of hard-coding access to the PS register.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

There's no need to attempt to match EXCP_* values with PALcode entry
point offsets.  Instead, compress all the values to make for more
efficient switch statements within QEMU.

We will be doing TLB fill within QEMU proper, not within the PALcode,
so all of the ITB/DTB miss, double fault, and access exceptions can
be compressed to EXCP_MMFAULT.

Compress all of the EXCP_CALL_PAL exceptions into one.
Use env->error_code to store the specific entry point.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Delete all the code that tried to emulate the real IPRs of some
unnamed CPU.  Replace those with just 3 slots that we can use to
communicate trap information between the helper functions that
signal exceptions and the OS trap handler.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Don't bother including executive and supervisor modes.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

This code does not work, and will be replaced by a bios image.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

A minimal implementation that more or less corresponds to the
user-level version used by target-i386.  More hoops will want
to be jumped through when alpha gets system-level emulation.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Use an exception plus start_exclusive to implement the compare-and-swap.
This follows the example set by the MIPS and PPC ports.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Removes a set of ifdefs from exec.c.

Introduce TARGET_VIRT_ADDR_SPACE_BITS for all targets other
than Alpha.  This will be used for page_find_alloc, which is
supposed to be using virtual addresses in the first place.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Move userland PALcode handling into linux-user main loop so that
we can send signals from there.  This also makes alpha_palcode.c
system-level only, so don't build it for userland.  Add defines
for GENTRAP PALcall mapping to signals.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>