Commit Graph

66052 Commits

Author SHA1 Message Date
Peter Maydell
619d54a8d8 hw/misc/tz-mpc: Fix value of BLK_MAX register
In the TZ Memory Protection Controller, the BLK_MAX register is supposed
to return the maximum permitted value of the BLK_IDX register. Our
implementation incorrectly returned max+1 (ie the total number of
valid index values, since BLK_IDX is zero-based).

Correct this off-by-one error. Since we consistently initialize
and use s->blk_max throughout the implementation as the 'size'
of the LUT, just adjust the value we return when the guest reads
the BLK_MAX register, rather than trying to change the semantics
of the s->blk_max internal struct field.

Fixes: https://bugs.launchpad.net/qemu/+bug/1806824
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181213183249.3468-1-peter.maydell@linaro.org
2019-01-07 15:23:48 +00:00
Peter Maydell
96c552958d target/arm: Emit barriers for A32/T32 load-acquire/store-release insns
Now that MTTCG is here, the comment in the 32-bit Arm decoder that
"Since the emulation does not have barriers, the acquire/release
semantics need no special handling" is no longer true. Emit the
correct barriers for the load-acquire/store-release insns, as
we already do in the A64 decoder.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-01-07 15:23:48 +00:00
Steffen Görtz
b39dced66a arm: Add Clock peripheral stub to NRF51 SOC
This stubs enables the microbit-micropython firmware to run
on the microbit machine.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-12-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
7ec543e4b9 tests/microbit-test: Add Tests for nRF51 Timer
Basic tests for nRF51 Timer Peripheral.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-11-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
60facd906b arm: Instantiate NRF51 Timers
Instantiates TIMER0 - TIMER2

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-10-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
c5a4829c08 hw/timer/nrf51_timer: Add nRF51 Timer peripheral
This patch adds the model for the nRF51 timer peripheral.
Currently, only the TIMER mode is implemented.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-9-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
17ff8e18cc tests/microbit-test: Add Tests for nRF51 GPIO
The test suite for the nRF51 GPIO peripheral for now
only tests initial state. Additionally a set of
tests testing an implementation detail of the model
are included.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-8-stefanha@redhat.com
[PMM: fixed stray space at start of file]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
bb42c4cb2a arm: Instantiate NRF51 general purpose I/O
Instantiates GPIO peripheral model

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-7-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
805f61bbb3 hw/gpio/nrf51_gpio: Add nRF51 GPIO peripheral
This adds a model of the nRF51 GPIO peripheral.

Reference Manual: http://infocenter.nordicsemi.com/pdf/nRF51_RM_v3.0.pdf

The nRF51 series microcontrollers support up to 32 GPIO pins in various configurations.
The pins can be used as input pins with pull-ups or pull-down.
Furthermore, three different output driver modes per level are
available (disconnected, standard, high-current).

The GPIO-Peripheral has a mechanism for detecting level changes which is
not featured in this model.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-6-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
f30890def5 arm: Instantiate NRF51 random number generator
Use RNG in SOC.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-5-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
90c58941f6 hw/misc/nrf51_rng: Add NRF51 random number generator peripheral
Add a model of the NRF51 random number generator peripheral.
This is a simple random generator that continuously generates
new random values after startup.

Reference Manual: http://infocenter.nordicsemi.com/pdf/nRF51_RM_v3.0.pdf

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-4-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
659b85e413 arm: Add header to host common definition for nRF51 SOC peripherals
Adds a header that provides definitions that are used
across nRF51 peripherals

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-3-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Steffen Görtz
9813dc6ac3 qtest: Add set_irq_in command to set IRQ/GPIO level
Adds a new qtest command "set_irq_in" which allows
to set qemu gpio lines to a given level.

Based on https://lists.gnu.org/archive/html/qemu-devel/2012-12/msg02363.html
which never got merged.

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-2-stefanha@redhat.com
Originally-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Philippe Mathieu-Daudé
ead07aa4ef hw/arm/allwinner-a10: Add the 'A' SRAM and the SRAM controller
From the "A10 User Manual V1.20" p.29: "3.2. Memory Mapping" and:

 7. System Control
  7.1. Overview

  A10 embeds a high-speed SRAM which has been split into five segments.
  See detailed memory mapping in following table:

  Area          Address        Size (Bytes)
   A1    0x00000000-0x00003FFF 16K
   A2    0x00004000-0x00007FFF 16K
   A3    0x00008000-0x0000B3FF 13K
   A4    0x0000B400-0x0000BFFF  3K

Since for emulation purpose we don't need the segmentations, we simply define
the 'A' area as a single 48KB SRAM.

We don't implement the following others areas:
- 'B': 'Secure RAM' (64K),
- 'C': Debug/ISP SRAM
- 'D': USB SRAM

(qemu) info mtree
address-space: memory
  0000000000000000-ffffffffffffffff (prio 0, i/o): system
    0000000000000000-000000000000bfff (prio 0, ram): sram A
    0000000001c00000-0000000001c00fff (prio -1000, i/o): a10-sram-ctrl
    0000000001c0b000-0000000001c0bfff (prio 0, i/o): aw_emac
    0000000001c18000-0000000001c18fff (prio 0, i/o): ahci
      0000000001c18080-0000000001c180ff (prio 0, i/o): allwinner-ahci
    0000000001c20400-0000000001c207ff (prio 0, i/o): allwinner-a10-pic
    0000000001c20c00-0000000001c20fff (prio 0, i/o): allwinner-A10-timer
    0000000001c28000-0000000001c2801f (prio 0, i/o): serial
    0000000040000000-0000000047ffffff (prio 0, ram): cubieboard.ram

Reported-by: Charlie Smurthwaite <charlie@atech.media>
Tested-by: Charlie Smurthwaite <charlie@atech.media>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20190104142921.878-1-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Peter Maydell
0ec7e6779f cpus.c: Fix race condition in cpu_stop_current()
We use cpu_stop_current() to ensure the current CPU has stopped
from places like qemu_system_reset_request(). Unfortunately its
current implementation has a race. It calls qemu_cpu_stop(),
which sets cpu->stopped to true even though the CPU hasn't
actually stopped yet. The main thread will look at the flags
set by qemu_system_reset_request() and call pause_all_vcpus().
pause_all_vcpus() waits for every cpu to have cpu->stopped true,
so it can continue (and we will start the system reset operation)
before the vcpu thread has got back to its top level loop.

Instead, just set cpu->stop and call cpu_exit(). This will
cause the vcpu to exit back to the top level loop, and there
(as part of the wait_io_event code) it will call qemu_cpu_stop().

This fixes bugs where the reset request appeared to be ignored
or the CPU misbehaved because the reset operation started
to change vcpu state while the vcpu thread was still using it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Tested-by: Jaap Crezee <jaap@jcz.nl>
Message-id: 20181207155911.12710-1-peter.maydell@linaro.org
2019-01-07 15:23:47 +00:00
Thomas Huth
b7f301141d MAINTAINERS: Add ARM-related files for hw/[misc|input|timer]/
Some of the files in hw/input/, hw/misc/ and hw/timer/ are only
used by one of the ARM machines, so we can assign these files to
the corresponding boards.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 1546433583-18397-1-git-send-email-thuth@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:47 +00:00
Edgar E. Iglesias
aee63b07fd hw/arm: versal: Plug memory leaks
Plug a couple of "board creation time" memory leaks.

Fixes: 6f16da53ff ("hw/arm: versal: Add a virtual Xilinx Versal board")
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190104104749.5314-2-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Stefan Hajnoczi
c38c37ac97 Revert "armv7m: Guard against no -kernel argument"
This reverts commit 01fd41ab3f.

The generic loader device (-device loader,file=kernel.bin) can be used
to load a kernel instead of the -kernel option.  Some boards have flash
memory (pflash) that is set via the -pflash or -drive options.

Allow starting QEMU without the -kernel option to accommodate these
scenarios.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103144124.18917-1-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
816fd397a1 arm/xlnx-zynqmp: put APUs and RPUs in separate CPU clusters
Create two separate CPU clusters for APUs and RPUs.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-17-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
364fce6f82 gdbstub: add multiprocess extension support
Add multiprocess extension support by enabling multiprocess mode when
the peer requests it, and by replying that we actually support it in the
qSupported reply packet.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-16-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
160d858dd6 gdbstub: gdb_set_stop_cpu: ignore request when process is not attached
When gdb_set_stop_cpu() is called with a CPU associated to a process
currently not attached by the GDB client, return without modifying the
stop CPU. Otherwise, GDB gets confused if it receives packets with a
thread-id it does not know about.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-15-luc.michel@greensocs.com
[PMM: fix checkpatch comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
970ed9064a gdbstub: processes initialization on new peer connection
When a new connection is established, we set the first process to be
attached, and the others detached. The first CPU of the first process
is selected as the current CPU.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181207090135.7651-14-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
3f940dc988 gdbstub: add support for vAttach packets
Add support for the vAttach packets. In multiprocess mode, GDB sends
them to attach to additional processes.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181207090135.7651-13-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
53fd655415 gdbstub: add support for extended mode packet
Add support for the '!' extended mode packet. This is required for the
multiprocess extension.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-12-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
546f3c676c gdbstub: add multiprocess support to 'D' packets
'D' packets are used by GDB to detach from a process. In multiprocess
mode, the PID to detach from is sent in the request.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-11-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
95567c2712 gdbstub: add multiprocess support to gdb_vm_state_change()
Add support for multiprocess extension in gdb_vm_state_change()
function.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-10-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
c145eeae1c gdbstub: add multiprocess support to Xfer:features:read:
Change the Xfer:features:read: packet handling to support the
multiprocess extension. This packet is used to request the XML
description of the CPU. In multiprocess mode, different descriptions can
be sent for different processes.

This function now takes the process to send the description for as a
parameter, and use a buffer in the process structure to store the
generated description.

It takes the first CPU of the process to generate the description.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-9-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
7cf48f6752 gdbstub: add multiprocess support to (f|s)ThreadInfo and ThreadExtraInfo
Change the thread info related packets handling to support multiprocess
extension.

Add the CPUs class name in the extra info to help differentiate
them in multiprocess mode.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-8-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
8dbbe9ac7f gdbstub: add multiprocess support to 'sC' packets
Change the sC packet handling to support the multiprocess extension.
Instead of returning the first thread, we return the first thread of the
current process.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-7-luc.michel@greensocs.com
[PMM: corrected checkpatch comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
e40e5204af gdbstub: add multiprocess support to vCont packets
Add the gdb_first_attached_cpu() and gdb_next_attached_cpu() to iterate
over all the CPUs in currently attached processes.

Add the gdb_first_cpu_in_process() and gdb_next_cpu_in_process() to
iterate over CPUs of a given process.

Use them to add multiprocess extension support to vCont packets.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-6-luc.michel@greensocs.com
[PMM: corrected checkpatch comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:46 +00:00
Luc Michel
7d8c87da79 gdbstub: add multiprocess support to 'H' and 'T' packets
Add a couple of helper functions to cope with GDB threads and processes.

The gdb_get_process() function looks for a process given a pid.

The gdb_get_cpu() function returns the CPU corresponding to the (pid,
tid) pair given as parameters.

The read_thread_id() function parses the thread-id sent by the peer.
This function supports the multiprocess extension thread-id syntax.  The
return value specifies if the parsing failed, or if a special case was
encountered (all processes or all threads).

Use them in 'H' and 'T' packets handling to support the multiprocess
extension.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-5-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:45 +00:00
Luc Michel
1a22733697 gdbstub: add multiprocess support to '?' packets
The gdb_get_cpu_pid() function does the PID lookup for the given CPU. It
checks if the CPU is a direct child of a CPU cluster. If it is, the
returned PID is the cluster ID plus one (cluster IDs start at 0, GDB
PIDs at 1). When the CPU is not a child of such a container, the PID of
the default process is returned.

The gdb_fmt_thread_id() function generates the string to be used to identify
a given thread, in a response packet for the peer. This function
supports generating thread IDs when multiprocess mode is enabled (in the
form `p<pid>.<tid>').

Use them in the reply to a '?' request.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-4-luc.michel@greensocs.com
[PMM: fixed checkpatch blockquote style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:45 +00:00
Luc Michel
8f46863618 gdbstub: introduce GDB processes
Add a structure GDBProcess that represents processes from the GDB
semantic point of view.

CPUs can be split into different processes, by grouping them under
different cpu-cluster objects.  Each occurrence of a cpu-cluster object
implies the existence of the corresponding process in the GDB stub. The
GDB process ID is derived from the corresponding cluster ID as follows:

  GDB PID = cluster ID + 1

This is because PIDs -1 and 0 are reserved in GDB and cannot be used by
processes.

A default process is created to handle CPUs that are not in a cluster.
This process gets the PID of the last process PID + 1.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181207090135.7651-3-luc.michel@greensocs.com
[PMM: fixed checkpatch nit about block comment style]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:45 +00:00
Luc Michel
335d52f457 hw/cpu: introduce CPU clusters
This commit adds the cpu-cluster type. It aims at gathering CPUs from
the same cluster in a machine.

For now it only has a `cluster-id` property.

Documentation in cluster.h written with the help of Peter Maydell.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-2-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:45 +00:00
Richard Henderson
407e6ce7f1 target/arm: SVE brk[ab] merging does not have s bit
While brk[ab] zeroing has a flags setting option, the merging variant
does not.  Retain the same argument structure, to share expansion but
force the flag zero and do not decode bit 22.

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181226215003.31438-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:45 +00:00
Richard Henderson
aad821ac4f target/arm: Convert ARM_TBFLAG_* to FIELDs
Use "register" TBFLAG_ANY to indicate shared state between
A32 and A64, and "registers" TBFLAG_A32 & TBFLAG_A64 for
fields that are specific to the given cpu state.

Move ARM_TBFLAG_BE_DATA to shared state, instead of its current
placement within "Bit usage when in AArch32 state".

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181218164348.7127-1-richard.henderson@linaro.org
[PMM: removed the renaming of BE_DATA flag to BE]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-07 15:23:45 +00:00
Daniel P. Berrangé
3fd2092fd1 hw/usb: fix mistaken de-initialization of CCID state
In previous commit:

  commit 7dea29e4af
  Author: Li Qiang <liq3ea@gmail.com>
  Date:   Fri Oct 19 03:50:36 2018 -0700

    hw: ccid-card-emulated: cleanup resource when realize in error path

The emulated_realize method was changed so that it jumps to a cleanup
label to de-initialize state upon error. This change failed to ensure
the success path exited the method before this point though. So the
mutexes are always destroyed even in normal operation. The result is
as crashtastic as expected:

$ qemu-system-x86_64 -usb -device usb-ccid,id=ccid0 -device ccid-card-emulated,backend=nss-emulated,id=smartcard0,bus=ccid0.0
qemu-system-x86_64: util/qemu-thread-posix.c:64: qemu_mutex_lock_impl: Assertion `mutex->initialized' failed.
Aborted (core dumped)

Fixes: 7dea29e4af
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181221134115.27973-1-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-01-07 14:12:20 +01:00
Marc-André Lureau
fa0cb34d22 hostmem: use object id for memory region name with >= 4.0
hostmem-file and hostmem-memfd use the whole object path for the
memory region name, and hostname-ram uses only the path component (the
object id, or canonical path basename):

qemu -m 1024 -object memory-backend-file,id=mem,size=1G,mem-path=/tmp/foo -numa node,memdev=mem -monitor stdio
(qemu) info ramblock
              Block Name    PSize              Offset               Used              Total
            /objects/mem    4 KiB  0x0000000000000000 0x0000000040000000 0x0000000040000000

qemu -m 1024 -object memory-backend-memfd,id=mem,size=1G -numa node,memdev=mem -monitor stdio
(qemu) info ramblock
              Block Name    PSize              Offset               Used              Total
            /objects/mem    4 KiB  0x0000000000000000 0x0000000040000000 0x0000000040000000

qemu -m 1024 -object memory-backend-ram,id=mem,size=1G -numa node,memdev=mem -monitor stdio
(qemu) info ramblock
              Block Name    PSize              Offset               Used              Total
                     mem    4 KiB  0x0000000000000000 0x0000000040000000 0x0000000040000000

For consistency, change to use object id for -file and -memfd as well
with >= 4.0.

Having a consistent naming allows to migrate to different hostmem
backends.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
51e5ef459e arm: replace instance_post_init()
Replace arm_cpu_post_init() instance callback by calling it from leaf
classes, to avoid potential ordering issue with other post_init callbacks.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
50545b2cc0 qdev-props: call object_apply_global_props()
It's now possible to use the common function.

Teach object_apply_global_props() to warn if Error argument is NULL.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
cff8b715c0 qdev-props: remove errp from GlobalProperty
All qdev_prop_register_global() set &error_fatal for errp, except
'-rtc driftfix=slew', which arguably should also use &error_fatal, as
otherwise failing to apply the property would only report a warning.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
e12ca3ce1c qdev-props: convert global_props to GPtrArray
A step towards being able to call a common function,
object_apply_global_props().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
55df8e1a2f qdev: all globals are now user-provided
All globals are now either provided via -global or through -cpu
features (CPU features are implemented by registering globals).

If the global isn't being used, it should warn in either case.

We can thus consider that all global_props are "user-provided"
globals. No need to track this per-globals anymore.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
1c3994f6d2 qdev: make a separate helper function to apply compat properties
This will allow to apply compat properties on other objects than QDev easily.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
a310e653ce compat: remove remaining PC_COMPAT macros
Use static arrays instead.  I decided to rename the conflicting
pc_compat_2_1() function with pc_compat_2_1_fn().

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
a1c3c562e2 include: remove compat.h
The header is now empty.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
c4fc5695b7 compat: replace PC_COMPAT_2_1 & HW_COMPAT_2_1 macros
Use static arrays instead.  I decided to rename the conflicting
pc_compat_2_1() function with pc_compat_2_1_fn().

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
1c30044e1a compat: replace PC_COMPAT_2_2 & HW_COMPAT_2_2 macros
Use static arrays instead.  I decided to rename the conflicting
pc_compat_2_2() function with pc_compat_2_2_fn().

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
8995dd9009 compat: replace PC_COMPAT_2_3 & HW_COMPAT_2_3 macros
Use static arrays instead.  I decided to rename the conflicting
pc_compat_2_3() function with pc_compat_2_3_fn().

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00
Marc-André Lureau
2f99b9c273 compat: replace PC_COMPAT_2_4 & HW_COMPAT_2_4 macros
Use static arrays instead.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-07 16:18:42 +04:00