Commit Graph

76 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 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 ed2803da58 cpu: Move singlestep_enabled field from CPU_COMMON to CPUState
Prepares for changing cpu_single_step() argument to CPUState.

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 02:41:32 +02:00
Andreas Färber bdf7ae5bbd cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb()
Where no extra implementation is needed, fall back to CPUClass::set_pc().

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 02:41:32 +02:00
Andreas Färber b42eab27be target-unicore32: Implement CPUClass::set_pc()
This adds support for GDB's c addr (Continue) and s addr (Single Step).

Prepares for dropping cpu_pc_from_tb().

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 02:41:32 +02:00
Andreas Färber 62a8055936 target-unicore32: Change gen_intermediate_code_internal() signature
Use UniCore32CPU and bool.

Prepares for moving singlestep_enabled field to CPUState.

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 6e42be7cd1 cpu: Drop unnecessary dynamic casts in *_env_get_cpu()
A transition from CPUFooState to FooCPU can be considered safe,
just like FooCPU::env access in the opposite direction.
The only benefit of the FOO_CPU() casts would be protection against
bogus CPUFooState pointers, but then surrounding code would likely
break, too.

This should slightly improve interrupt etc. performance when going from
CPUFooState to FooCPU.
For any additional CPU() casts see 3556c233d9
(qom: allow turning cast debugging off).

Reported-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:20:28 +02:00
Peter Maydell 6291ad77d7 linux-user: Move cpu_clone_regs() and cpu_set_tls() into linux-user
The functions cpu_clone_regs() and cpu_set_tls() are not purely CPU
related -- they are specific to the TLS ABI for a a particular OS.
Move them into the linux-user/ tree where they belong.

target-lm32 had entirely unused implementations, since it has no
linux-user target; just drop them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:20:28 +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
Stefan Weil 6681fca3fc Remove unnecessary break statements
Fix these warnings from cppcheck:

hw/display/cirrus_vga.c:2603:
hw/sd/sd.c:348:
hw/timer/exynos4210_mct.c:1033:
target-arm/translate.c:9886:
target-s390x/mem_helper.c:518:
target-unicore32/translate.c:1936:
 style: Consecutive return, break, continue, goto or throw statements are unnecessary.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-01 14:25:38 +04:00
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 259186a7d2 cpu: Move halted and interrupt_request fields to CPUState
Both fields are used in VMState, thus need to be moved together.
Explicitly zero them on reset since they were located before
breakpoints.

Pass PowerPCCPU to kvmppc_handle_halt().

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12 10:35:55 +01:00
Peter Maydell 806f352d3d gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end
The gen_icount_start/end functions are now somewhat misnamed since they
are useful for generic "start/end of TB" code, used for more than just
icount. Rename them to gen_tb_start/end.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-03 14:29:08 +00:00
Andreas Färber fadf982584 cpu: Introduce ENV_OFFSET macros
Introduce ENV_OFFSET macros which can be used in non-target-specific
code that needs to generate TCG instructions which reference CPUState
fields given the cpu_env register that TCG targets set up with a
pointer to the CPUArchState struct.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-03 14:28:28 +00:00
Richard Henderson d1f8cd8391 target-unicore32: Use mul*2 for do_mult
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-23 17:25:31 +00:00
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 d9c27f00b1 target-unicore32: Move TCG initialization to UniCore32CPU initfn
Normalize the "inited" logic and add a tcg_enabled() check to suppress
it for qtest.

Ensures that a QOM-created UniCore32CPU is usable.

Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16 14:50:59 +01:00
Andreas Färber 088383e322 target-unicore32: Introduce QOM realizefn for UniCore32CPU
Introduce a realizefn and set realized = true in uc32_cpu_init().

Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
[AF: Invoke the parent's realizefn]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16 14:50:57 +01:00
Andreas Färber eeb266ded8 target-unicore32: Rename CPU subtypes
In the initial conversion of CPU models to QOM types, model names were
mapped 1:1 to type names. As a side effect this gained us a type "any",
which is now a device.

To avoid "-device any" silliness and to pave the way for compiling
multiple targets into one executable, adopt a <name>-<arch>-cpu scheme.

No functional changes for -cpu arguments.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-01 01:35:43 +01:00
Andreas Färber 88e28512ef target-unicore32: Mark as unmigratable
CPU_SAVE_VERSION 2 was bogus as both save and load would just throw a
hw_error(). Therefore we can without problems suppress registration of
"cpu_common" VMState by dropping CPU_SAVE_VERSION define and provide an
unmigratable "cpu" VMStateDescription for UniCore32CPU at device level
instead, where we can attach this the QOM way.

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 87fb5811e6 target-unicore32: Use type_register() instead of type_register_static()
According to its documentation, type_register_static()'s TypeInfo
argument should exist for the life type of the type.
Therefore use type_register() when registering the list of CPU subtypes.

No functional change with the current implementation.

Cf. 918fd0839e for arm.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-28 16:57:56 +01:00
Andreas Färber 4933908ac5 target-unicore32: Catch attempt to instantiate abstract type in cpu_init()
Fixes -cpu unicore32-cpu asserting.

Cc: qemu-stable@nongnu.org
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-28 16:57:56 +01:00
Andreas Färber d89e12188d target-unicore32: Detect attempt to instantiate non-CPU type in cpu_init()
Consolidate model checking into a new uc32_cpu_class_by_name().

If the name matches an existing type, also check whether that type is
actually (a sub-type of) TYPE_UNICORE32_CPU.

This fixes, e.g., -cpu puv3_dma asserting.

Cc: qemu-stable@nongnu.org
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-27 23:33:25 +01:00
Robert Schiele 74880fe27d configure: allow disabling pixman if not needed
When we build neither any system emulation targets nor the tools there
is actually no need for pixman library.  In that case do not enforce
presence of that library on the system.

Reviewed-by: Andreas F=E4rber <afaerber@suse.de>
Signed-off-by: Robert Schiele <rschiele@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-23 14:38:52 -06:00
Paolo Bonzini 6b4c305cbd fpu: move public header file to include/fpu
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:32:46 +01:00
Paolo Bonzini 1de7afc984 misc: move include files to include/qemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:32:39 +01:00
Paolo Bonzini 14cccb6185 qom: move include files to include/qom/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:31:32 +01:00
Paolo Bonzini 022c62cbbc exec: move include files to include/exec/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:31:31 +01:00
Paolo Bonzini 28ecbaeecb ui: move files to ui/ and include/ui/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:31:30 +01:00
Paolo Bonzini 76cad71136 build: kill libdis, move disassemblers to disas/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:29:06 +01:00
Blue Swirl a8a826a3c3 exec: refactor cpu_restore_state
Refactor common code around calls to cpu_restore_state().

tb_find_pc() has now no external users, make it static.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-16 08:35:24 +00:00
Evgeny Voevodin ab1103def4 TCG: Use gen_opc_instr_start from context instead of global variable.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-08 14:24:43 +00:00
Evgeny Voevodin c9c99c22d5 TCG: Use gen_opc_icount from context instead of global variable.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-08 14:24:42 +00:00
Evgeny Voevodin 25983cad31 TCG: Use gen_opc_pc from context instead of global variable.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-08 14:24:42 +00:00
Evgeny Voevodin 92414b31e7 TCG: Use gen_opc_buf from context instead of global variable.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-11-17 13:53:36 +00:00
Evgeny Voevodin efd7f48600 TCG: Use gen_opc_ptr from context instead of global variable.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-11-17 13:53:27 +00:00
Blue Swirl 447b3b60d1 target-unicore32: avoid using cpu_single_env
Pass around CPUArchState instead of using global cpu_single_env.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Andreas Färber <afaerber@suse.de>
2012-11-10 13:49:20 +00:00
Blue Swirl f4359b9ffe disas: avoid using cpu_single_env
Pass around CPUArchState instead of using global cpu_single_env.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2012-11-10 13:49:20 +00:00
Andreas Färber 3993c6bddf cpus: Pass CPUState to [qemu_]cpu_has_work()
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: Andreas Färber <afaerber@suse.de>
[AF: Updated new target-openrisc function accordingly]
Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
2012-10-31 04:11:37 +01:00
Avi Kivity a8170e5e97 Rename target_phys_addr_t to hwaddr
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: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-23 08:58:25 -05:00
Amos Kong 4d5b97da35 cleanup useless return sentence
This patch cleans up return sentences in the end of void functions.

Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
2012-10-05 15:10:21 +02:00
Richard Henderson daa47c34a8 target-unicore32: Call tcg_gen_debug_insn_start
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27 21:44:28 +02:00
Blue Swirl 04a130eaa1 target-unicore32: switch to AREG0 free mode
Add an explicit CPUState parameter instead of relying on AREG0
and switch to AREG0 free mode.

Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15 17:44:32 +00:00
Guan Xuetao ff5928d0f2 unicore32-softmmu: Add a minimal curses screen support
This patch adds a minimal curses screen support for unicore32-softmmu.
We assume 80*30 screen size to minimize the implementation.
Two problems are not solved, but they are innocuous.
1. curses windows will be blank when switching to monitor screen and back
2. backspace is not handled yet

v1->v2: add extra handler for '\r'

Signed-off-by: Zhang Mengchi <zhangmengchi@mprc.pku.edu.cn>
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-11 09:37:05 +00:00
Guan Xuetao 1e5cdaa1ca unicore32: Close dump-option of cpu_dump_state_ucf64 function
Since of tedious output, we close dump-option of cpu_dump_state_ucf64 function.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-11 09:37:05 +00:00
Guan Xuetao c5240d8232 unicore32: Disintegrate cpu_dump_state_ucf64 function
This patch disintegrates cpu_dump_state_ucf64 function from cpu_dump_state.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-11 09:37:04 +00:00
Guan Xuetao e8ede0a8bb unicore32: Split UniCore-F64 instruction helpers from helper.c
This patch just splits ucf64 instruction simulation helpers from
helper.c.
Also, two checkpatch warnings are solved.

v1->v2: adjust copyright information for new ucf64_helper.c

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-11 09:37:04 +00:00
Guan Xuetao ef03168a85 unicore32-softmmu: Make sure that kernel can access user space
As a matter of course, we need to access user space in kernel code,
so we need to correct load/store decoders to indicate correct memory
region.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-11 09:36:58 +00:00
Guan Xuetao f3ccc32369 unicore32-softmmu: Implement softmmu specific functions
This patch implements softmmu specific functions, include tlb_fill,
switch_mode, do_interrupt and uc32_cpu_handle_mmu_fault.
So the full exception handlers and page table walking could work now.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-08-11 09:36:58 +00:00