Some files claim that the code is licensed under the GPL, but then
suddenly suggest that the user should have a look at the LGPL.
That's of course non-sense, replace it with the correct GPL wording
instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1548255083-8190-1-git-send-email-thuth@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Sets the category of the sd memory card as DEVICE_CATEGORY_STORAGE.
Devices should be assigned to one of DEVICE_CATEGORY_XXXX.
Signed-off-by: kumar sourav <sourav.jb1988@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190124162045.10474-1-sourav.jb1988@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Sets the category of i8042 device as DEVICE_CATEGORY_INPUT
Devices should be assigned to one of DEVICE_CATEGORY_XXXX.
Signed-off-by: kumar sourav <sourav.jb1988@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20190125151440.13794-1-sourav.jb1988@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
apci_1_compatible should be acpi_1_compatible.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190125094047.22276-1-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Sets the category of edu device as DEVICE_CATEGORY_MISC.
Devices should be assigned to one of DEVICE_CATEGORY_XXXX.
Signed-off-by: kumar sourav <sourav.jb1988@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190124144606.4352-1-sourav.jb1988@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Fix validation of 32-bit address spaces for aa32 (fixes an assert introduced in ba97be9f4a)
* v8m: Ensure IDAU is respected if SAU is disabled
* gdbstub: fix gdb_get_cpu(s, pid, tid) when pid and/or tid are 0
* exec.c: Use correct attrs in cpu_memory_rw_debug()
* accel/tcg/user-exec: Don't parse aarch64 insns to test for read vs write
* target/arm: Don't clear supported PMU events when initializing PMCEID1
* memory: add memory_region_flush_rom_device()
* microbit: Add stub NRF51 TWI magnetometer/accelerometer detection
* tests/microbit-test: extend testing of microbit devices
* checkpatch: Don't emit spurious warnings about block comments
* aspeed/smc: misc bug fixes
* xlnx-zynqmp: Don't create rpu-cluster if there are no RPUs
* xlnx-zynqmp: Realize cluster after putting RPUs in it
* accel/tcg: Add cluster number to TCG TB hash so differently configured
CPUs don't pick up cached TBs for the wrong kind of CPU
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20190129' into staging
target-arm queue:
* Fix validation of 32-bit address spaces for aa32 (fixes an assert introduced in ba97be9f4a)
* v8m: Ensure IDAU is respected if SAU is disabled
* gdbstub: fix gdb_get_cpu(s, pid, tid) when pid and/or tid are 0
* exec.c: Use correct attrs in cpu_memory_rw_debug()
* accel/tcg/user-exec: Don't parse aarch64 insns to test for read vs write
* target/arm: Don't clear supported PMU events when initializing PMCEID1
* memory: add memory_region_flush_rom_device()
* microbit: Add stub NRF51 TWI magnetometer/accelerometer detection
* tests/microbit-test: extend testing of microbit devices
* checkpatch: Don't emit spurious warnings about block comments
* aspeed/smc: misc bug fixes
* xlnx-zynqmp: Don't create rpu-cluster if there are no RPUs
* xlnx-zynqmp: Realize cluster after putting RPUs in it
* accel/tcg: Add cluster number to TCG TB hash so differently configured
CPUs don't pick up cached TBs for the wrong kind of CPU
# gpg: Signature made Tue 29 Jan 2019 11:59:10 GMT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20190129: (23 commits)
gdbstub: Simplify gdb_get_cpu_pid() to use cpu->cluster_index
accel/tcg: Add cluster number to TCG TB hash
qom/cpu: Add cluster_index to CPUState
hw/arm/xlnx-zynqmp: Realize cluster after putting RPUs in it
aspeed/smc: snoop SPI transfers to fake dummy cycles
aspeed/smc: Add dummy data register
aspeed/smc: define registers for all possible CS
aspeed/smc: fix default read value
xlnx-zynqmp: Don't create rpu-cluster if there are no RPUs
checkpatch: Don't emit spurious warnings about block comments
tests/microbit-test: Check nRF51 UART functionality
tests/microbit-test: Make test independent of global_qtest
tests/libqtest: Introduce qtest_init_with_serial()
memory: add memory_region_flush_rom_device()
target/arm: Don't clear supported PMU events when initializing PMCEID1
MAINTAINERS: update microbit ARM board files
accel/tcg/user-exec: Don't parse aarch64 insns to test for read vs write
exec.c: Use correct attrs in cpu_memory_rw_debug()
tests/microbit-test: add TWI stub device test
arm: Stub out NRF51 TWI magnetometer/accelerometer detection
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Now we're keeping the cluster index in the CPUState, we don't
need to jump through hoops in gdb_get_cpu_pid() to find the
associated cluster object.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20190121152218.9592-5-peter.maydell@linaro.org
Include the cluster number in the hash we use to look
up TBs. This is important because a TB that is valid
for one cluster at a given physical address and set
of CPU flags is not necessarily valid for another:
the two clusters may have different views of physical
memory, or may have different CPU features (eg FPU
present or absent).
We put the cluster number in the high 8 bits of the
TB cflags. This gives us up to 256 clusters, which should
be enough for anybody. If we ever need more, or need
more bits in cflags for other purposes, we could make
tb_hash_func() take more data (and expand qemu_xxhash7()
to qemu_xxhash8()).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20190121152218.9592-4-peter.maydell@linaro.org
For TCG we want to distinguish which cluster a CPU is in, and
we need to do it quickly. Cache the cluster index in the CPUState
struct, by having the cluster object set cpu->cluster_index for
each CPU child when it is realized.
This means that board/SoC code must add all CPUs to the cluster
before realizing the cluster object. Regrettably QOM provides no
way to prevent adding children to a realized object and no way for
the parent to be notified when a new child is added to it, so
we don't have any way to enforce/assert this constraint; all
we can do is document it in a comment. We can at least put in a
check that the cluster contains at least one CPU, which should
catch the typical cases of "realized cluster too early" or
"forgot to parent the CPUs into it".
The restriction on how many clusters can exist in the system
is imposed by TCG code which will be added in a subsequent commit,
but the check to enforce it in cluster.c fits better in this one.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20190121152218.9592-3-peter.maydell@linaro.org
Currently the cluster implementation doesn't have any constraints
on the ordering of realizing the TYPE_CPU_CLUSTER and populating it
with child objects. We want to impose a constraint that realize
must happen only after all the child objects are added, so move
the realize of rpu_cluster. (The apu_cluster is already
realized after child population.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20190121152218.9592-2-peter.maydell@linaro.org
The m25p80 models dummy cycles using byte transfers. This works well
when the transfers are initiated by the QEMU model of a SPI controller
but when these are initiated by the OS, it breaks emulation.
Snoop the SPI transfer to catch commands requiring dummy cycles and
replace them with byte transfers compatible with the m25p80 model.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20190124140519.13838-5-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The SMC controllers have a register containing the byte that will be
used as dummy output. It can be modified by software.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190124140519.13838-4-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The model should expose one control register per possible CS. When
testing the validity of the register number in the read operation,
replace 's->num_cs' by 'ctrl->max_slaves' which represents the maximum
number of flash devices a controller can handle.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190124140519.13838-3-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
0xFFFFFFFF should be returned for non implemented registers.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190124140519.13838-2-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If we aren't going to create any RPUs, then don't create the
rpu-cluster unit. This allows us to add an assertion to the
cluster object that it contains at least one CPU, which helps
to avoid bugs in creating clusters and putting CPUs in them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190121184314.14311-1-peter.maydell@linaro.org
In checkpatch we attempt to check for and warn about
block comments which start with /* or /** followed by a
non-blank. Unfortunately a bug in the regex meant that
we would incorrectly warn about comments starting with
"/**" with no following text:
git show 9813dc6ac3954d58ba16b3920556f106f97e1c67|./scripts/checkpatch.pl -
WARNING: Block comments use a leading /* on a separate line
#34: FILE: tests/libqtest.h:233:
+/**
The sequence "/\*\*?" was intended to match either "/*" or "/**",
but Perl's semantics for '?' allow it to backtrack and try the
"matches 0 chars" option if the "matches 1 char" choice leads to
a failure of the rest of the regex to match. Switch to "/\*\*?+"
which uses what perlre(1) calls the "possessive" quantifier form:
this means that if it matches the "/**" string it will not later
backtrack to matching just the "/*" prefix.
The other end of the regex is also wrong: it is attempting
to check for "/* or /** followed by something that isn't
just whitespace", but [ \t]*.+[ \t]* will match on pure
whitespace. This is less significant but means that a line
with just a comment-starter followed by trailing whitespace
will generate an incorrect warning about block comment style
as well as the correct error about trailing whitespace which
a different checkpatch test emits.
Fixes: 8c06fbdf36 ("scripts/checkpatch.pl: Enforce multiline comment syntax")
Reported-by: Thomas Huth <thuth@redhat.com>
Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20190118165050.22270-1-peter.maydell@linaro.org
Using of global_qtest is not required here. Let's replace functions like
readl() with the corresponding qtest_* counterparts.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190123120759.7162-3-jusual@mail.ru
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Run qtest with a socket that connects QEMU chardev and test code.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190123120759.7162-2-jusual@mail.ru
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ROM devices go via MemoryRegionOps->write() callbacks for write
operations and do not dirty/invalidate that memory. Device emulation
must be able to mark memory ranges that have been modified internally
(e.g. using memory_region_get_ram_ptr()).
Introduce the memory_region_flush_rom_device() API for this purpose.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190123212234.32068-2-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fix block comment style]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
A bug was introduced during a respin of:
commit 57a4a11b2b
target/arm: Add array for supported PMU events, generate PMCEID[01]_EL0
This patch introduced two calls to get_pmceid() during CPU
initialization - one each for PMCEID0 and PMCEID1. In addition to
building the register values, get_pmceid() clears an internal array
mapping event numbers to their implementations (supported_event_map)
before rebuilding it. This is an optimization since much of the logic is
shared. However, since it was called twice, the contents of
supported_event_map reflect only the events in PMCEID1 (the second call
to get_pmceid()).
Fix this bug by moving the initialization of PMCEID0 and PMCEID1 back
into a single function call, and name it more appropriately since it is
doing more than simply generating the contents of the PMCEID[01]
registers.
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190123195814.29253-1-aaron@os.amperecomputing.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
New source files were added without corresponding ./MAINTAINERS file
entries. Let's get things up to date.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190123183352.11025-1-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In cpu_signal_handler() for aarch64 hosts, currently we parse
the faulting instruction to see if it is a load or a store.
Since the 3.16 kernel (~2014), the kernel has provided us with
the syndrome register for a fault, which includes the WnR bit.
Use this instead if it is present, only falling back to
instruction parsing if not.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190108180014.32386-1-peter.maydell@linaro.org
In the softmmu version of cpu_memory_rw_debug(), we ask the
CPU for the attributes to use for the virtual memory access,
and we correctly use those to identify the address space
index. However, we were not passing them in to the
address_space_write_rom() and address_space_rw() functions.
The effect of this was that a memory access from the gdbstub
to a device which had behaviour that was sensitive to the
memory attributes (such as some ARMv8M NVIC registers) was
incorrectly always performed as if non-secure, rather than
using the right security state for the CPU's current state.
Fixes: https://bugs.launchpad.net/qemu/+bug/1812091
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190117133834.7480-1-peter.maydell@linaro.org
This test verifies that we read back the expected I2C WHO_AM_I register
values for the accelerometer/magnetometer.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190110094020.18354-3-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Recent microbit firmwares panic if the TWI magnetometer/accelerometer
devices are not detected during startup. We don't implement TWI (I2C)
so let's stub out these devices just to let the firmware boot.
Signed-off by: Steffen Görtz <contrib@steffen-goertz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190110094020.18354-2-stefanha@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fixed comment style]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
a TID or PID value means "any thread" (resp. "any process"). This commit
fixes the different combinations when at least one value is 0.
When both are 0, the function now returns the first attached CPU,
instead of the CPU with TID 1, which is not necessarily attached or even
existent.
When PID is specified but TID is 0, the function returns the first CPU
in the process, or NULL if the process does not exist or is not
attached.
In other cases, it returns the corresponding CPU, while ignoring the PID
check when PID is 0.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20190119140000.11767-1-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The current behavior of v8m_security_lookup in helper.c only checks whether the
IDAU specifies a higher security if the SAU is enabled. If SAU.ALLNS is set to
1, this will lead to addresses being treated as non-secure, even though the
IDAU indicates that they must be secure.
This patch changes the behavior to also check the IDAU if the SAU is currently
disabled.
(This brings the behaviour here into line with the v8M Arm ARM
SecurityCheck() pseudocode.)
Signed-off-by: Thomas Roth <code@stacksmashing.net>
Message-id: CAGGekkuc+-tvp5RJP7CM+Jy_hJF7eiRHZ96132sb=hPPCappKg@mail.gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: added pseudocode ref to the commit message, fixed comment style]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When tsz == 0, aarch32 selects the address space via exclusion,
and there are no "top_bits" remaining that require validation.
Fixes: ba97be9f4a
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190125184913.5970-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Now that all tcg backends support TCG_TARGET_IMPLEMENTS_DYN_TLB,
remove the define and the old code.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Disabled in all TCG backends for now.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20190116170114.26802-3-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Currently we evict an entry to the victim TLB when it doesn't match
the current address. But it could be that there's no match because
the current entry is empty (i.e. all -1's, for instance via tlb_flush).
Do not evict the entry to the vtlb in that case.
This change will help us keep track of the TLB's use rate, which
we'll use to implement a policy for dynamic TLB sizing.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20190116170114.26802-2-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The avx instruction set does not directly provide MO_64.
We can still implement 64-bit with comparison and vpblendvb.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Thomas Huth
kumar sourav
Dr. David Alan Gilbert
Peter Maydell
Cédric Le Goater
Julia Suvorova
Stefan Hajnoczi
Aaron Lindsay OS
Steffen Görtz
Luc Michel
Thomas Roth
Richard Henderson
Emilio G. Cota