Commit Graph

21 Commits

Author SHA1 Message Date
Andreas Färber
14a10fc399 cpu: Partially revert "cpu: Change qemu_init_vcpu() argument to CPUState"
Commit c643bed99 moved qemu_init_vcpu() calls to common CPUState code.
This causes x86 cpu-add to fail with "KVM: setting VAPIC address failed".

The reason for the failure is that CPUClass::kvm_fd is not yet
initialized in the following call graph:
->x86_cpu_realizefn
 ->x86_cpu_apic_realize
  ->qdev_init
   ->device_set_realized
    ->device_reset (hotplugged == 1)
     ->apic_reset_common
      ->vapic_base_update
       ->kvm_apic_vapic_base_update
This causes attempted KVM vCPU ioctls to fail.

By contrast, in the non-hotplug case the APIC is reset much later, when
the vCPU is already initialized.

As a quick and safe solution, move the qemu_init_vcpu() call back into
the targets' realize functions.

Reported-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Acked-by: Igor Mammedov <imammedo@redhat.com> (for i386)
Tested-by: Jia Liu <proljc@gmail.com> (for openrisc)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 15:29:15 +02:00
Andreas Färber
5b50e790f9 cpu: Introduce CPUClass::gdb_{read,write}_register()
Completes migration of target-specific code to new target-*/gdbstub.c.

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-27 00:04:17 +02:00
Andreas Färber
a0e372f0c4 cpu: Introduce CPUState::gdb_num_regs and CPUClass::gdb_num_core_regs
CPUState::gdb_num_regs replaces num_g_regs.
CPUClass::gdb_num_core_regs replaces NUM_CORE_REGS.

Allows building gdb_register_coprocessor() for xtensa, too.

As a side effect this should fix coprocessor register numbering for SMP.

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-26 23:23:54 +02:00
Andreas Färber
00b941e581 cpu: Turn cpu_get_phys_page_debug() into a CPUClass hook
Change breakpoint_invalidate() argument to CPUState alongside.

Since all targets now assign a softmmu-only field, we can drop helpers
cpu_class_set_{do_unassigned_access,vmsd}() and device_class_set_vmsd().

Prepares for changing cpu_memory_rw_debug() argument to CPUState.

Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 02:41:33 +02:00
Andreas Färber
f45748f10e cpu: Introduce CPUClass::set_pc() for gdb_set_cpu_pc()
This moves setting the Program Counter from gdbstub into target code.
Use vaddr type as upper-bound replacement for target_ulong.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 02:41:31 +02:00
Andreas Färber
91b1df8cf9 cpu: Move reset logging to CPUState
x86 was using additional CPU_DUMP_* flags, so make that configurable in
CPUClass::reset_dump_flags.

This adds reset logging for alpha, unicore32 and xtensa.

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:33:04 +02:00
Andreas Färber
a0762859ae log: Change log_cpu_state[_mask]() argument to CPUState
Since commit 878096eeb2 (cpu: Turn
cpu_dump_{state,statistics}() into CPUState hooks) CPUArchState is no
longer needed.

Add documentation and make the functions available through qemu/log.h
outside NEED_CPU_H to allow use in qom/cpu.c. Moving them to qom/cpu.h
was not yet possible due to convoluted include paths, so that some
devices grow an implicit and unneeded dependency on qom/cpu.h for now.

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Reviewed-by: Richard Henderson <rth@twiddle.net>
[AF: Simplified mb_cpu_do_interrupt() and do_interrupt_all() changes]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:33:04 +02:00
Andreas Färber
c658b94f6e cpu: Turn cpu_unassigned_access() into a CPUState hook
Use it for all targets, but be careful not to pass invalid CPUState.
cpu_single_env can be NULL, e.g. on Xen.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:13 +02:00
Andreas Färber
c643bed99f cpu: Change qemu_init_vcpu() argument to CPUState
This allows to move the call into CPUState's realizefn.
Therefore move the stub into libqemustub.a.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:13 +02:00
Andreas Färber
878096eeb2 cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks
Make cpustats monitor command available unconditionally.

Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec()
arguments to CPUState.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Edgar E. Iglesias
a1bff71c56 microblaze: Add internal base vectors reg
Configurable at CPU synthesis/instantiation.

Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-26 11:28:50 +02:00
Andreas Färber
97a8ea5a3a cpu: Replace do_interrupt() by CPUClass::do_interrupt method
This removes a global per-target function and thus takes us one step
closer to compiling multiple targets into one executable.

It will also allow to override the interrupt handling for certain CPU
families.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12 10:35:55 +01:00
Andreas Färber
c05efcb18e 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>
2013-02-16 14:51:00 +01:00
Andreas Färber
cd0c24f909 target-microblaze: Move TCG initialization to MicroBlazeCPU initfn
Split off TCG initialization from cpu_mb_init() into mb_tcg_init() to
call it from the initfn.

Ensures that a QOM-created MicroBlazeCPU is usable.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16 14:50:58 +01:00
Andreas Färber
746b03b27c target-microblaze: Introduce QOM realizefn for MicroBlazeCPU
Introduce realizefn and set realized = true from cpu_mb_init().

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16 14:50:57 +01:00
Andreas Färber
3ce8b2bcbf target-microblaze: Mark as unmigratable
cpu_{save,load} were no-ops, so de facto it is unmigratable and no
backwards compatibility to keep. Therefore mark the MicroBlazeCPU as
unmigratable at device level the QOM way and suppress "cpu_common"
VMState registration by dropping CPU_SAVE_VERSION.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2013-02-01 01:35:21 +01:00
Andreas Färber
55e5c28502 cpu: Move cpu_index field to CPUState
Note that target-alpha accesses this field from TCG, now using a
negative offset. Therefore the field is placed last in CPUState.

Pass PowerPCCPU to [kvm]ppc_fixup_cpu() to facilitate this change.

Move common parts of mips cpu_state_reset() to mips_cpu_reset().

Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
[AF: Rebased onto ppc CPU subclasses and openpic changes]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15 04:09:13 +01:00
Peter A. G. Crosthwaite
8cc9b43f7c target-microblaze: lwx/swx: first implementation
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-06-04 10:19:46 +02:00
Andreas Färber
d0e71ef56f target-microblaze: QOM'ify CPU init
Move code from cpu_mb_init() to a QOM initfn.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Tested-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
[AF: Leave cpu_reset() call in cpu_mb_init()]
2012-04-24 16:04:56 +02:00
Andreas Färber
61b6208f8e target-microblaze: QOM'ify CPU reset
Move code from cpu_state_reset() to QOM mb_cpu_reset().

Signed-off-by: Andreas Färber <afaerber@suse.de>
Tested-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-04-24 16:04:56 +02:00
Andreas Färber
b77f98cada target-microblaze: QOM'ify CPU
Embed CPUMBState as first member of QOM MicroBlazeCPU.

Let CPUClass::reset() call cpu_state_reset() for now.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Tested-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
[AF: Updated cpu.c to include cpu-qom.h indirectly via cpu.h]
2012-04-24 16:04:56 +02:00