Commit Graph

9 Commits

Author SHA1 Message Date
Bruno Larsen (billionai) c19940db0f target/ppc: created ppc_{store,get}_vscr for generic vscr usage
Some functions unrelated to TCG use helper_m{t,f}vscr, so generic versions
of those functions were added to cpu.c, in preparation for compilation
without TCG

Signed-off-by: Bruno Larsen (billionai) <bruno.larsen@eldorado.org.br>
Message-Id: <20210512140813.112884-2-bruno.larsen@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-05-19 10:30:28 +10:00
Richard Henderson cc2b90d725 target/ppc: Add helper_mfvscr
This is required before changing the representation of the register.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20190215100058.20015-13-mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-18 11:00:44 +11:00
Mark Cave-Ayland ef96e3ae96 target/ppc: move FP and VMX registers into aligned vsr register array
The VSX register array is a block of 64 128-bit registers where the first 32
registers consist of the existing 64-bit FP registers extended to 128-bit
using new VSR registers, and the last 32 registers are the VMX 128-bit
registers as show below:

            64-bit               64-bit
    +--------------------+--------------------+
    |        FP0         |                    |  VSR0
    +--------------------+--------------------+
    |        FP1         |                    |  VSR1
    +--------------------+--------------------+
    |        ...         |        ...         |  ...
    +--------------------+--------------------+
    |        FP30        |                    |  VSR30
    +--------------------+--------------------+
    |        FP31        |                    |  VSR31
    +--------------------+--------------------+
    |                  VMX0                   |  VSR32
    +-----------------------------------------+
    |                  VMX1                   |  VSR33
    +-----------------------------------------+
    |                  ...                    |  ...
    +-----------------------------------------+
    |                  VMX30                  |  VSR62
    +-----------------------------------------+
    |                  VMX31                  |  VSR63
    +-----------------------------------------+

In order to allow for future conversion of VSX instructions to use TCG vector
operations, recreate the same layout using an aligned version of the existing
vsr register array.

Since the old fpr and avr register arrays are removed, the existing callers
must also be updated to use the correct offset in the vsr register array. This
also includes switching the relevant VMState fields over to using subarrays
to make sure that migration is preserved.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-01-09 09:28:14 +11:00
Stefan Hajnoczi f18793b096 compiler: add a sizeof_field() macro
Determining the size of a field is useful when you don't have a struct
variable handy.  Open-coding this is ugly.

This patch adds the sizeof_field() macro, which is similar to
typeof_field().  Existing instances are updated to use the macro.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180614164431.29305-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-27 13:01:40 +01:00
David Hildenbrand 7f579e272f exec,dump,i386,ppc,s390x: don't include exec/cpu-all.h explicitly
All but a handful of files include exec/cpu-all.h via cpu.h only.
As these files already include cpu.h, let's just drop the additional
include.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170913132417.24384-2-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-09-19 18:21:33 +02:00
Laurent Vivier b1fde1ef51 hmp: fix "dump-quest-memory" segfault (ppc)
Running QEMU with
    qemu-system-ppc64 -M none -nographic -m 256
and executing
    dump-guest-memory /dev/null 0 8192
results in segfault

Fix by checking if we have CPU, and exit with
error if there is no CPU:

    (qemu) dump-guest-memory /dev/null
    this feature or command is not currently supported

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20170913142036.2469-2-lvivier@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-09-14 15:52:10 +01:00
Anton Blanchard b88290cd9e target/ppc: Fix size of struct PPCElfPrstatus
gdb refuses to parse QEMU memory dumps because struct PPCElfPrstatus
is the wrong size. Fix it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Fixes: e62fbc54d4 ("target-ppc: dump-guest-memory support")
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-04-26 12:41:55 +10:00
Mike Nawrocki 356bb70ed1 Add PowerPC 32-bit guest memory dump support
This patch extends support for the `dump-guest-memory` command to the
32-bit PowerPC architecture. It relies on the assumption that a 64-bit
guest will not dump a 32-bit core file (and vice versa).

[dwg: I suspect this patch won't cover all cases, in particular a
32-bit machine type on a 64-bit qemu build.  However, it does strictly
more than what we had before, so might as well apply as a starting
point]

Signed-off-by: Mike Nawrocki <michael.nawrocki@gtri.gatech.edu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-03-01 11:53:58 +11:00
Thomas Huth fcf5ef2ab5 Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2016-12-20 21:52:12 +01:00