The exec.c and translate-all.c radix trees are quite different, and
the exec.c one in particular is not limited to the CPU---it can be
used also by devices that do DMA, and in that case the address space
is not limited to TARGET_PHYS_ADDR_SPACE_BITS bits.

We want to make exec.c's radix trees 64-bit wide.  As a first step,
stop sharing the constants between exec.c and translate-all.c.
exec.c gets P_L2_* constants, translate-all.c gets V_L2_*, for
consistency with the existing V_L1_* symbols.  Though actually
in the softmmu case translate-all.c is also indexed by physical
addresses...

This patch has no semantic change.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

All implementations now boil down to GETRA.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

The page dump writes a table with 3 abi_ulong values in each row.
These values take 8 or 16 characters (depending on sizeof abi_ulong).

Fix the table headings to be aligned with the table columns.

old:
start    end      size     prot
0000000120000000-000000012021e000 000000000021e000 rwx
0000004000000000-0000004000002000 0000000000002000 ---
0000004000002000-0000004000802000 0000000000800000 rw-

new:
start            end              size             prot
0000000120000000-000000012021e000 000000000021e000 rwx
0000004000000000-0000004000002000 0000000000002000 ---
0000004000002000-0000004000802000 0000000000800000 rw-
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Introduce CPU_FOREACH(), CPU_FOREACH_SAFE() and CPU_NEXT() shorthand
macros.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

The page_unprotect() function is running everything locked. Before every
potential exit path of the function mmap_unlock() gets called to make sure
we don't leak the lock.

However, the function calls tb_invalidate_phys_page() which again can
exit a signal through longjmp, leaving our mmap_unlock() attempts in vain.

Add a hint to tb_invalidate_phys_page() that we need to unlock before we
can leave back into guest context, so that we don't leak the lock.

This fixes 16-bit i386 wine programs running in linux-user for me.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

Move next_cpu from CPU_COMMON to CPUState.
Move first_cpu variable to qom/cpu.h.

gdbstub needs to use CPUState::env_ptr for now.
cpu_copy() no longer needs to save and restore cpu_next.
Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
[AF: Rebased, simplified cpu_copy()]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Move it to qom/cpu.h.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Only address_space_translate_for_iotlb needs to return the section.
Every caller of address_space_translate now uses only section->mr,
return it directly.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

add preliminary support for TCG target aarch64.
Signed-off-by: NClaudio Fontana <claudio.fontana@huawei.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 51A5C596.3090108@huawei.com
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Using phys_page_find to translate an AddressSpace to a MemoryRegionSection
is unwieldy.  It requires to pass the page index rather than the address,
and later memory_region_section_addr has to be called.  Replace
memory_region_section_addr with a function that does all of it: call
phys_page_find, compute the offset within the region, and check how
big the current mapping is.  This way, a large flat region can be written
with a single lookup rather than a page at a time.

address_space_translate will also provide a single point where IOMMU
forwarding is implemented.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Improves readability.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>

Signed-off-by: Nliguang <lig.fnst@cn.fujitsu.com>
Reviewed-By: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

When using profiling, we rely on profile_getclock() being available
at our disposal. Somehow that function got moved from an indirect
include we used to have in translate-init.c, so that we were now
left not properly compiling anymore.

Add an explicit include to timer.h which defines profile_getclock,
so that we can compile again.
Signed-off-by: NAlexander Graf <agraf@suse.de>

The code did use profile_getclock() but did not include
include/qemu/timer.h where this function is defined. The patch fixes this.
Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
Message-id: 1366616571-4321-1-git-send-email-aik@ozlabs.ru
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Headers in include/exec/ are for the deepest innards of QEMU,
they should almost never be included directly.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

is_tcg_gen_code() checks the upper limit of TCG generated code range wrong, so
that TCG could get broken occasionally only when CONFIG_QEMU_LDST_OPTIMIZATION
enabled. The reason is code_gen_buffer_max_size does not cover the upper range
up to (TCG_MAX_OP_SIZE * OPC_BUF_SIZE), thus code_gen_buffer_max_size should be
modified to code_gen_buffer_size.

CC: qemu-stable@nongnu.org
Signed-off-by: NYeongkyoon Lee <yeongkyoon.lee@samsung.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Move it to qom/cpu.h to avoid issues with include order.

Change pc_acpi_smi_interrupt() opaque to X86CPU.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

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: NAndreas Färber <afaerber@suse.de>

The (unsafe) function cpu_unlink_tb() is now unused, so we can simply
remove it and any code that was only used by it.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix some of the nasty TCG race conditions and crashes by implementing
cpu_exit() as setting a flag which is checked at the start of each TB.
This avoids crashes if a thread or signal handler calls cpu_exit()
while the execution thread is itself modifying the TB graph (which
may happen in system emulation mode as well as in linux-user mode
with a multithreaded guest binary).

This fixes the crashes seen in LP:668799; however there are another
class of crashes described in LP:1098729 which stem from the fact
that in linux-user with a multithreaded guest all threads will
use and modify the same global TCG date structures (including the
generated code buffer) without any kind of locking. This means that
multithreaded guest binaries are still in the "unsupported"
category.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

CPUArchState is no longer needed.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

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: NAndreas Färber <afaerber@suse.de>

It's worth to clean-up translation blocks variables and move them
into one context as was suggested by Swirl.
Also if we use this context directly inside tcg_ctx, then it
speeds up code generation a bit.
Signed-off-by: NEvgeny Voevodin <evgenyvoevodin@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <evgenyvoevodin@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

  When tb_remove was first commited at fd6ce8f6, there were three different
calls pass different names to offsetof. In current codebase, the other two
calls are replaced with tb_page_remove. There is no need to have a general
tb_remove. Omit passing the third parameter and using tb1->phys_hash_next
directly.
Signed-off-by: NChen Wei-Ren <chenwj@iis.sinica.edu.tw>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Refactor common code around calls to cpu_restore_state().

tb_find_pc() has now no external users, make it static.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

QEMU host addresses must use uintptr_t to be portable for hosts with
an unusual size of long (w64).

tb_jmp_offset is an uint16_t value, therefore the local variable offset
in function tb_set_jmp_target was changed from unsigned long to uint16_t.

The type cast to long in function tb_add_jump now also uses uintptr_t.
For the bit operation used here, the signedness of the type cast does
not matter.

Some remaining unsigned long values are either only used for ARM assembler
code or will be fixed in a later patch for PPC.

v2:
Fix signature of tb_find_pc in exec.c, too (hint from Blue Swirl, thanks).
There remain lots of other long / unsigned long in exec.c which must be
replaced by uintptr_t. This will be done in a separate patch. Here
only one of these type casts is fixed.

v3:
Also fix signature of page_unprotect.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
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>

Delegate TCG temp_buf setup to targets, so that they can use a stack
frame later instead.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Most exec-all.h include directives are now useless, remove them.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

The previous patch removed the need for parameter puc.
Is is now unused, so remove it.

Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>

Function gen_pc_load was introduced in commit
d2856f1a.
The only reason for parameter searched_pc was
a debug statement in target-i386/translate.c.

Parameter puc was needed by target-sparc until
commit d7da2a10.

Remove searched_pc from the debug statement and remove both
parameters from the parameter list of gen_pc_load.

As the function name gen_pc_load was also misleading,
it is now called restore_state_to_opc. This new name
was suggested by Peter Maydell, thanks.

v2: Remove last parameter, too, and rename the function.

v3: Fix [] typo in target-arm/translate.c.
    Fix wrong SHA1 object name in commit message (copy+paste error).

Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>