Commit Graph

658 Commits

Author SHA1 Message Date
Benjamin Herrenschmidt c76c22d51d ppc: Add missing slbfee. instruction on ppc64 BookS processors
Used to lookup SLB entries by address, for some reason it was missing.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 13:10:45 +10:00
Benjamin Herrenschmidt 2f9254d964 ppc: Fix slbia decode
Since at least the 2.05 architecture, the slbia instruction takes an
IH field in the opcode to provide some control on the effect of the
slbia on the ERATs (level-1 TLB).

We can safely ignore it as we always flush the whole qemu TLB but
we should allow the bits in the decode.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 13:10:45 +10:00
Benjamin Herrenschmidt 5e31867fbd ppc: Fix mtmsr decoding
We had code to handle the L bit in the opcode but we didn't
allow it in the decode mask.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 13:10:45 +10:00
Benjamin Herrenschmidt dfdd3e4362 ppc: POWER7 has lq/stq instructions and stq need to check ISA
The PPC_64BX instruction flag is used for a couple of newer
instructions currently on POWER8 but our implementation for
them works for POWER7 too (and already does the proper checking
of what is permitted) with one exception: stq needs to check
the ISA version.

This fixes the latter and add the instructions to POWER7

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 13:10:44 +10:00
Benjamin Herrenschmidt c5a8d8f32d ppc: Batch TLB flushes on 32-bit 6xx/7xx/7xxx in hash mode
This ports the existing 64-bit mechanism to 32-bit, thus series
of 64 tlbie's followed by a sync like some versions of Darwin
(ab)use will result in a single flush.

We apply a pending flush on any sync instruction though, as Darwin
doesn't use tlbsync on non-SMP systems.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 13:10:44 +10:00
Cédric Le Goater 1c7336c5d1 ppc: fix hrfid, tlbia and slbia privilege
commit 74693da988 ('ppc: tlbie, tlbia and tlbisync are HV only')
introduced some extra checks on the instruction privilege. slbia was
changed wrongly and hrfid, tlbia were forgotten.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 10:17:45 +10:00
Benjamin Herrenschmidt 932ccbdd48 ppc: Better figure out if processor has HV mode
We use an env. flag which is set to the initial value of MSR_HVB in
the msr_mask. We also adjust the POWER8 mask to set SHV.

Also use this to adjust ctx.hv so that it is *set* when the processor
doesn't have an HV mode (970 with Apple mode for example), thus enabling
hypervisor instructions/SPRs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: ctx.hv used to be defined only for the hypervisor kernel
      (HV=1|PR=0). It is now defined also when PR=1 and conditions are
      fixed accordingly.
      stripped unwanted tabs.]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 10:17:45 +10:00
Richard Henderson 4910e6e42e target-*: dfilter support for in_asm
The arm target was handled by 06486077, but other targets
were ignored.  This handles all the rest which actually support
disassembly (that is, skipping moxie and tilegx).

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-06-05 09:26:24 -07:00
Benjamin Herrenschmidt b68e60e6f0 ppc: Get out of emulation on SMT "OR" ops
Otherwise tight loops at smt_low for example, which OPAL does,
eat so much CPU that we can't boot a kernel anymore. With that,
I can boot 8 CPUs just fine with powernv.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-30 13:20:04 +10:00
Michael Neuling c409bc5daf ppc: Fix sign extension issue in mtmsr(d) emulation
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-30 13:20:04 +10:00
Benjamin Herrenschmidt f9ef0527ff ppc: Change 'invalid' bit mask of tlbiel and tlbie
Otherwise it will trip on the forms used in recent architecture.

Ideally, we should have different handlers for different architecture
levels but our current implementation of TLB flushing is dumb enough
that this will do for now.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-30 13:20:04 +10:00
Benjamin Herrenschmidt 74693da988 ppc: tlbie, tlbia and tlbisync are HV only
Not that anything remotely recent supports tlbia but ...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-30 13:20:04 +10:00
Benjamin Herrenschmidt cd0c6f4735 ppc: Do some batching of TCG tlb flushes
On ppc64 especially, we flush the tlb on any slbie or tlbie instruction.

However, those instructions often come in bursts of 3 or more (context
switch will favor a series of slbie's for example to an slbia if the
SLB has less than a certain number of entries in it, and tlbie's can
happen in a series, with PAPR, H_BULK_REMOVE can remove up to 4 entries
at a time.

Doing a tlb_flush() each time is a waste of time. We end up doing a memset
of the whole TLB, reloading it for the next instruction, memset'ing again,
etc...

Those instructions don't have to take effect immediately. For slbie, they
can wait for the next context synchronizing event. For tlbie, the next
tlbsync.

This implements batching by keeping a flag that indicates that we have a
TLB in need of flushing. We check it on interrupts, rfi's, isync's and
tlbsync and flush the TLB if needed.

This reduces the number of tlb_flush() on a boot to a ubuntu installer
first dialog screen from roughly 360K down to 36K.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: added a 'CPUPPCState *' variable in h_remove() and
      h_bulk_remove() ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[dwg: removed spurious whitespace change, use 0/1 not true/false
      consistently, since tlb_need_flush has int type]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-30 13:20:04 +10:00
Benjamin Herrenschmidt 9fb0449114 ppc: Use split I/D mmu modes to avoid flushes on interrupts
We rework the way the MMU indices are calculated, providing separate
indices for I and D side based on MSR:IR and MSR:DR respectively,
and thus no longer need to flush the TLB on context changes. This also
adds correct support for HV as a separate address space.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-30 13:20:04 +10:00
Richard Henderson a7b2c8b90a target-ppc: Cleanups to rldinm, rldnm, rldimi
Mirror the cleanups just done to rlwinm, rlwnm and rlwimi.
This adds use of deposit to rldimi.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-27 09:40:22 +10:00
Richard Henderson 63ae0915f8 target-ppc: Use 32-bit rotate instead of deposit + 64-bit rotate
A 32-bit rotate insn is more common on hosts than a deposit insn,
and if the host has neither the result is truely horrific.

At the same time, tidy up the temporaries within these functions,
drop the over-use of "likely", drop some checks for identity that
will also be checked by tcg-op.c functions, and special case mask
without rotate within rlwinm.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-27 09:40:22 +10:00
Richard Henderson 24f9cd951d target-ppc: Use movcond in isel
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-27 09:40:22 +10:00
Paolo Bonzini 63c915526d cpu: move exec-all.h inclusion out of cpu.h
exec-all.h contains TCG-specific definitions.  It is not needed outside
TCG-specific files such as translate.c, exec.c or *helper.c.

One generic function had snuck into include/exec/exec-all.h; move it to
include/qom/cpu.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19 16:42:29 +02:00
Sergey Fedorov 90aa39a1cc tcg: Allow goto_tb to any target PC in user mode
In user mode, there's only a static address translation, TBs are always
invalidated properly and direct jumps are reset when mapping change.
Thus the destination address is always valid for direct jumps and
there's no need to restrict it to the pages the TB resides in.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Blue Swirl <blauwirbel@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-12 14:06:42 -10:00
Thomas Huth afbee7128c ppc: Fix the range check in the LSWI instruction
There are two issues: First, the number of registers that are used has
to be calculated with "(nb + 3) / 4" (i.e. round always up, not down).
Second, the "start <= ra && (start + nr - 32) > ra" condition for the
wrap-around case is wrong: It has to be tested with "||" instead of "&&".
Since we can reuse this check later for the LSWX instruction, let's
place the fixed code into a helper function, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-04-18 15:14:38 +10:00
Benjamin Herrenschmidt eb94268e73 ppc: Add macros to register hypervisor mode SPRs
The current set of spr_register_* macros only take the user and
supervisor function pointers. To make the transition easy, we
don't change that but we add "_hv" variants that can be used to
register all 3 sets.

To simplify the transition, users of the "old" macro will set the
hypervisor callback to be the same as the supervisor one. The new
registration function only needs to be used for registers that are
either hypervisor only or behave differently in HV mode.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: fixed else if condition in gen_op_mfspr() ]
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:33 +11:00
Lluís Vilanova 1bcea73e13 tcg: Add type for vCPU pointers
Adds the 'TCGv_env' type for pointers to 'CPUArchState' objects. The
tracing infrastructure later needs to differentiate between regular
pointers and pointers to vCPUs.

Also changes all targets to use the new 'TCGv_env' type instead of the
generic 'TCGv_ptr'. As of now, the change is merely cosmetic ('TCGv_env'
translates into 'TCGv_ptr'), but that could change in the future to
enforce the difference.

Note that a 'TCGv_env' type (for 'CPUState') is not added, since all
helpers currently receive the architecture-specific
pointer ('CPUArchState').

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Acked-by: Richard Henderson <rth@twiddle.net>
Message-id: 145641859552.30295.7821536833590725201.stgit@localhost
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-03-01 13:27:09 +00:00
David Gibson 808bc3b069 target-ppc: Include missing MMU models for SDR1 in info registers
The HMP command "info registers" produces somewhat different information on
different ppc cpu variants.  For those with a hash MMU it's supposed to
include the SDR1, DAR and DSISR registers related to the MMU.  However,
the switch is missing a couple of MMU model variants, meaning we will
miss out this information on certain CPUs which should have it.

This patch corrects the oversight.  (Really these MMU model IDs need a big
cleanup, but we might as well fix the bug in the interim).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-17 09:59:30 +11:00
Richard Henderson e1ccc05444 tcg: Change tcg_global_mem_new_* to take a TCGv_ptr
Thus, use cpu_env as the parameter, not TCG_AREG0 directly.
Update all uses in the translators.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-09 10:19:32 +11:00
Paolo Bonzini 508127e243 log: do not unnecessarily include qom/cpu.h
Split the bits that require it to exec/log.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1452174932-28657-8-git-send-email-den@openvz.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-03 09:19:10 +00:00
James Clarke d1277156b5 target-ppc: mcrfs should always update FEX/VX and only clear exception bits
Here is the description of the mcrfs instruction from the PowerPC Architecture
Book, Version 2.02, Book I: PowerPC User Instruction Set Architecture
(http://www.ibm.com/developerworks/systems/library/es-archguide-v2.html), found
on page 120:

    The contents of FPSCR field BFA are copied to Condition Register field BF.
    All exception bits copied are set to 0 in the FPSCR. If the FX bit is
    copied, it is set to 0 in the FPSCR.

    Special Registers Altered:
        CR field BF
        FX OX                        (if BFA=0)
        UX ZX XX VXSNAN              (if BFA=1)
        VXISI VXIDI VXZDZ VXIMZ      (if BFA=2)
        VXVC                         (if BFA=3)
        VXSOFT VXSQRT VXCVI          (if BFA=5)

However, currently every bit in FPSCR field BFA is set to 0, including ones not
on that list.

This can be seen in the following simple C program:

    #include <fenv.h>
    #include <stdio.h>

    int main(int argc, char **argv) {
        int ret;
        ret = fegetround();
        printf("Current rounding: %d\n", ret);
        ret = fesetround(FE_UPWARD);
        printf("Setting to FE_UPWARD (%d): %d\n", FE_UPWARD, ret);
        ret = fegetround();
        printf("Current rounding: %d\n", ret);
        ret = fegetround();
        printf("Current rounding: %d\n", ret);
        return 0;
    }

which gave the output (before this commit):

    Current rounding: 0
    Setting to FE_UPWARD (2): 0
    Current rounding: 2
    Current rounding: 0

instead of (after this commit):

    Current rounding: 0
    Setting to FE_UPWARD (2): 0
    Current rounding: 2
    Current rounding: 2

The relevant disassembly is in fegetround(), which, on my system, is:

    __GI___fegetround:
    <+0>:   mcrfs  cr7, cr7
    <+4>:   mfcr   r3
    <+8>:   clrldi r3, r3, 62
    <+12>:  blr

What happens is that, the first time fegetround() is called, FPSCR field 7 is
retrieved. However, because of the bug in mcrfs, the entirety of field 7 is set
to 0, which includes the rounding mode.

There are other issues this will fix, such as condition flags not persisting
when they should if read, and if you were to read a specific field with some
exception bits set, but no others were set in the entire register, then the
bits would be cleared correctly, but FEX/VX would not be updated to 0 as they
should be.

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-01 13:27:01 +11:00
David Gibson 4693364f31 target-ppc: Split 44x tlbiva from ppc_tlb_invalidate_one()
Currently both the tlbiva instruction (used on 44x chips) and the tlbie
instruction (used on hash MMU chips) are both handled via
ppc_tlb_invalidate_one().  This is silly, because they're invoked from
different places, and do different things.

Clean this up by separating out the tlbiva instruction into its own
handling.  In fact the implementation is only a stub anyway.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
2016-01-30 23:49:26 +11:00
Peter Maydell 0d75590d91 ppc: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-6-git-send-email-peter.maydell@linaro.org
2016-01-29 15:07:22 +00:00
Paolo Bonzini 48880da696 ppc: cleanup logging
Avoid "naked" qemu_log, bring documentation for DEBUG #defines
up to date.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-17 17:33:48 +01:00
Paolo Bonzini 013a29424c qemu-log: introduce qemu_log_separate
In some cases, the same message is printed both on stderr and in the log.
Avoid duplicate output in the default case where stderr _is_ the log,
and standardize this to stderr+log where it used to use stdio+log.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-17 17:33:47 +01:00
Alexander Graf 4248b336d3 PPC: Allow Rc bit to be set on mtspr
According to the ISA setting the Rc bit on mtspr is undefined behavior.
Real 750 hardware simply ignores the bit and doesn't touch cr0 though.

Unfortunately, Mac OS 9 relies on this fact and executes a few mtspr
instructions (to set XER for example) with Rc set.

So let's handle the bit the same way hardware does and ignore it.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-11-12 13:15:54 +11:00
Richard Henderson 522a0d4e3c target-*: Advance pc after recognizing a breakpoint
Some targets already had this within their logic, but make sure
it's present for all targets.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-28 10:57:16 -07:00
Benjamin Herrenschmidt aa4bb58752 ppc: Add mmu_model defines for arch 2.03 and 2.07
This removes unused POWERPC_MMU_2_06a/POWERPC_MMU_2_06d.

This replaces POWERPC_MMU_64B with POWERPC_MMU_2_03 for POWER5+ to be
more explicit about the version of the PowerISA supported.

This defines POWERPC_MMU_2_07 and uses it for the POWER8 CPU family.
This will not have an immediate effect now but it will in the following
patch.

This should cause no behavioural change.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[aik: rebased, changed commit log]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-10-23 12:22:40 +11:00
Richard Henderson 4e5e121515 tcg: Remove gen_intermediate_code_pc
It is no longer used, so tidy up everything reached by it.
This includes the gen_opc_* arrays, the search_pc parameter
and the inline gen_intermediate_code_internal functions.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:52 +11:00
Richard Henderson bad729e272 tcg: Pass data argument to restore_state_to_opc
The gen_opc_* arrays are already redundant with the data stored in
the insn_start arguments.  Transition restore_state_to_opc to use
data from the latter.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:51 +11:00
Richard Henderson 190ce7fbc7 tcg: Add TCG_MAX_INSNS
Adjust all translators to respect it.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:50 +11:00
Richard Henderson b933066ae0 target-*: Introduce and use cpu_breakpoint_test
Reduce the boilerplate required for each target.  At the same time,
move the test for breakpoint after calling tcg_gen_insn_start.

Note that arm and aarch64 do not use cpu_breakpoint_test, but still
move the inline test down after tcg_gen_insn_start.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:28 +11:00
Richard Henderson 959082fc4a target-*: Increment num_insns immediately after tcg_gen_insn_start
This does tidy the icount test common to all targets.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:27 +11:00
Richard Henderson 667b8e29c5 target-*: Unconditionally emit tcg_gen_insn_start
While we're at it, emit the opcode adjacent to where we currently
record data for search_pc.  This puts gen_io_start et al on the
"correct" side of the marker.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:27 +11:00
Richard Henderson 765b842ade tcg: Rename debug_insn_start to insn_start
With an eye toward making it mandatory.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:26 +11:00
Aurelien Jarno 8f60f8e2e5 target-ppc: fix xscmpodp and xscmpudp decoding
The xscmpodp and xscmpudp instructions only have the AX, BX bits in
there encoding, the lowest bit (usually TX) is marked as an invalid
bit. We therefore can't decode them with GEN_XX2FORM, which decodes
the two lowest bit.

Introduce a new form GEN_XX2FORM, which decodes AX and BX and mark
the lowest bit as invalid.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-09-20 22:48:39 +02:00
Peter Crosthwaite d49190c420 disas: Remove uses of CPU env
disas does not need to access the CPU env for any reason. Change the
APIs to accept CPU pointers instead. Small change pattern needs to be
applied to all target translate.c. This brings us closer to making
disas.o a common-obj and less architecture specific in general.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-06-22 17:40:01 +02:00
Richard Henderson 42a268c241 tcg: Change translator-side labels to a pointer
This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.

Note that the code generating backends still manipulate labels as int.

With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13 12:28:18 -07:00
Tristan Gingold 21e5d28a47 display cpu id dump state
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:03 +01:00
Richard Henderson fe700adb3d tcg: Introduce tcg_op_buf_count and tcg_op_buf_full
The method by which we count the number of ops emitted
is going to change.  Abstract that away into some inlines.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12 21:21:38 -08:00
Richard Henderson 0a7df5da98 tcg: Move emit of INDEX_op_end into gen_tb_end
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-12 21:21:38 -08:00
Peter Maydell 97052d64e4 Patch queue for ppc - 2015-01-07
New year's release. This time's highlights:
 
   - E500: More RAM support
   - pseries: New SLOF release
   - Migration fixes
   - Simplify USB spawning logic, removes support for explicit usb=off
   - TCG: Simple untansactional TM emulation
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2015-01-07

New year's release. This time's highlights:

  - E500: More RAM support
  - pseries: New SLOF release
  - Migration fixes
  - Simplify USB spawning logic, removes support for explicit usb=off
  - TCG: Simple untansactional TM emulation

# gpg: Signature made Wed 07 Jan 2015 15:19:37 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg:                 aka "Alexander Graf <alex@csgraf.de>"

* remotes/agraf/tags/signed-ppc-for-upstream: (37 commits)
  hw/ppc/mac_newworld: simplify usb controller creation logic
  hw/ppc/spapr: simplify usb controller creation logic
  hw/ppc/mac_newworld: QOMified mac99 machines
  hw/usb: simplified usb_enabled
  hw/machine: added machine_usb wrapper
  hw/ppc: modified the condition for usb controllers to be created for some ppc machines
  target-ppc: Cast ssize_t to size_t before printing with %zx
  target-ppc: Mark SR() and gen_sync_exception() as !CONFIG_USER_ONLY
  PPC: e500: Fix GPIO controller interrupt number
  target-ppc: Introduce Privileged TM Noops
  target-ppc: Introduce tcheck
  target-ppc: Introduce TM Noops
  target-ppc: Introduce tbegin
  target-ppc: Introduce TEXASRU Bit Fields
  target-ppc: Power8 Supports Transactional Memory
  target-ppc: Introduce tm_enabled Bit to CPU State
  target-ppc: Introduce Feature Flag for Transactional Memory
  target-ppc: Introduce Instruction Type for Transactional Memory
  pseries: Update SLOF firmware image to 20141202
  PPC: Fix crash on spapr_tce_table_finalize()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-01-10 19:50:21 +00:00
Peter Maydell 466976d9ee target-ppc: Mark SR() and gen_sync_exception() as !CONFIG_USER_ONLY
The functions SR() and gen_sync_exception() are only used in softmmu
configs; wrap them in #ifndef CONFIG_USER_ONLY to suppress clang warnings
on the linux-user builds.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:28 +01:00
Tom Musta f83c2378bb target-ppc: Introduce Privileged TM Noops
Add the supervisory Transactional Memory instructions treclaim. and
trechkpt.  The implementation is a degenerate one that simply
checks privileged state, TM availability and then sets CR[0] to
0b0000, just like the unprivileged noops.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:28 +01:00
Tom Musta aeedd58234 target-ppc: Introduce tcheck
Add a degenerate implementation of the Transaction Check (tcheck)
instruction.  Since transaction always immediately fail, this
implementation simply sets CR[BF] to 0b1000, i.e. TDOOMED = 1
and MSR[TS] == 0.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:28 +01:00