The Zb[abcs] ratification package does not include the proposed
shift-one instructions. There currently is no clear plan to whether
these (or variants of them) will be ratified as Zbo (or a different
extension) or what the timeframe for such a decision could be.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210911140016.834071-8-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Zbs 1.0.0 (just as the 0.93 draft-B before) does not provide for W-form
instructions for Zbs (single-bit instructions). Remove them.
Note that these instructions had already been removed for the 0.93
version of the draft-B extention and have not been present in the
binutils patches circulating in January 2021.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210911140016.834071-7-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The following instructions are part of Zba:
- add.uw (RV64 only)
- sh[123]add (RV32 and RV64)
- sh[123]add.uw (RV64-only)
- slli.uw (RV64-only)
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210911140016.834071-6-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The bitmanipulation ISA extensions will be ratified as individual
small extension packages instead of a large B-extension. The first
new instructions through the door (these have completed public review)
are Zb[abcs].
This adds new 'x-zba', 'x-zbb', 'x-zbc' and 'x-zbs' properties for
these in target/riscv/cpu.[ch].
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210911140016.834071-5-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Assume clzw being executed on a register that is not sign-extended, such
as for the following sequence that uses (1ULL << 63) | 392 as the operand
to clzw:
bseti a2, zero, 63
addi a2, a2, 392
clzw a3, a2
The correct result of clzw would be 23, but the current implementation
returns -32 (as it performs a 64bit clz, which results in 0 leading zero
bits, and then subtracts 32).
Fix this by changing the implementation to:
1. shift the original register up by 32
2. performs a target-length (64bit) clz
3. return 32 if no bits are set
Marking this instruction as 'w-form' (i.e., setting ctx->w) would not
correctly model the behaviour, as the instruction should not perform
a zero-extensions on the input (after all, it is not a .uw instruction)
and the result is always in the range 0..32 (so neither a sign-extension
nor a zero-extension on the result will ever be needed). Consequently,
we do not set ctx->w and mark the instruction as EXT_NONE.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
Message-id: 20210911140016.834071-4-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The refactored gen_clzw() uses ret as its argument, instead of arg1.
Fix it.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210911140016.834071-3-philipp.tomsich@vrull.eu
Fixes: 6090391505 ("target/riscv: Add DisasExtend to gen_unary")
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Following the recent changes in translate.c, gen_add_uw() causes
failures on CF3 and SPEC2017 due to the reuse of arg1. Fix these
regressions by introducing a temporary.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210911140016.834071-2-philipp.tomsich@vrull.eu
Fixes: 191d1dafae ("target/riscv: Add DisasExtend to gen_arith*")
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Change from Philippe - Remove unused TCG temp
Change from Taylor - Probe the stores in a packet at start of commit
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Merge remote-tracking branch 'remotes/quic/tags/pull-hex-20211006' into staging
Change from Philippe - Use tcg_constant_*
Change from Philippe - Remove unused TCG temp
Change from Taylor - Probe the stores in a packet at start of commit
# gpg: Signature made Wed 06 Oct 2021 08:44:13 AM PDT
# gpg: using RSA key 7B0244FB12DE4422
# gpg: Good signature from "Taylor Simpson (Rock on) <tsimpson@quicinc.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 3635 C788 CE62 B91F D4C5 9AB4 7B02 44FB 12DE 4422
* remotes/quic/tags/pull-hex-20211006:
target/hexagon: Use tcg_constant_*
target/hexagon: Remove unused TCG temporary from predicated loads
Hexagon (target/hexagon) probe the stores in a packet at start of commit
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Replace uses of tcg_const_* with the allocate and free close together.
Inspired-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211003004750.3608983-3-f4bug@amsat.org>
The gen_pred_cancel() function, introduced in commit a646e99cb9
(Hexagon macros) doesn't use the 'one' TCG temporary; remove it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211003004750.3608983-2-f4bug@amsat.org>
When a packet has 2 stores, either both commit or neither commit.
At the beginning of gen_commit_packet, we check for multiple stores.
If there are multiple stores, call a helper that will probe each of
them before proceeding with the commit.
Note that we don't call the probe helper for packets with only one
store. Therefore, we call process_store_log before anything else
involved in committing the packet.
We also fix a typo in the comment in process_store_log.
Test case added in tests/tcg/hexagon/hex_sigsegv.c
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <1633036599-7637-1-git-send-email-tsimpson@quicinc.com>
- Fix I/O errors because of incorrectly detected max_iov
- Fix not white-listed copy-before-write
- qemu-storage-daemon: Only display FUSE help when FUSE is built-in
- iotests: update environment and linting configuration
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Merge remote-tracking branch 'remotes/kwolf/tags/for-upstream' into staging
Block layer patches
- Fix I/O errors because of incorrectly detected max_iov
- Fix not white-listed copy-before-write
- qemu-storage-daemon: Only display FUSE help when FUSE is built-in
- iotests: update environment and linting configuration
# gpg: Signature made Wed 06 Oct 2021 03:58:10 AM PDT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
* remotes/kwolf/tags/for-upstream:
iotests: Update for pylint 2.11.1
iotests/migrate-bitmaps-test: delint
iotests/mirror-top-perms: Adjust imports
iotests/linters: check mypy files all at once
iotests: add 'qemu' package location to PYTHONPATH in testenv
block: introduce max_hw_iov for use in scsi-generic
iotests/image-fleecing: declare requirement of copy-before-write
block: bdrv_insert_node(): don't use bdrv_open()
block: bdrv_insert_node(): doc and style
block: bdrv_insert_node(): fix and improve error handling
block: implement bdrv_new_open_driver_opts()
qemu-storage-daemon: Only display FUSE help when FUSE is built-in
include/block.h: remove outdated comment
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1. Ignore the new f-strings warning, we're not interested in doing a
full conversion at this time.
2. Just mute the unbalanced-tuple-unpacking warning, it's not a real
error in this case and muting the dozens of callsites is just not
worth it.
3. Add encodings to read_text().
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210923180715.4168522-7-jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Mostly uninteresting stuff. Move the test injections under a function
named main() so that the variables used during that process aren't in
the global scope.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210923180715.4168522-6-jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
We need to import subpackages from the qemu namespace package; importing
the namespace package alone doesn't bring the subpackages with it --
unless someone else (like iotests.py) imports them too.
Adjust the imports.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210923180715.4168522-5-jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
We can circumvent the '__main__' redefinition problem by passing
--scripts-are-modules. Take mypy out of the loop per-filename and check
everything in one go: it's quite a bit faster.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210923180715.4168522-4-jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
We can drop the sys.path hacking in various places by doing
this. Additionally, by doing it in one place right up top, we can print
interesting warnings in case the environment does not look correct. (See
next commit.)
If we ever decide to change how the environment is crafted, all of the
"help me find my python packages" goop is all in one place, right in one
function.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210923180715.4168522-2-jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Linux limits the size of iovecs to 1024 (UIO_MAXIOV in the kernel
sources, IOV_MAX in POSIX). Because of this, on some host adapters
requests with many iovecs are rejected with -EINVAL by the
io_submit() or readv()/writev() system calls.
In fact, the same limit applies to SG_IO as well. To fix both the
EINVAL and the possible performance issues from using fewer iovecs
than allowed by Linux (some HBAs have max_segments as low as 128),
introduce a separate entry in BlockLimits to hold the max_segments
value from sysfs. This new limit is used only for SG_IO and clamped
to bs->bl.max_iov anyway, just like max_hw_transfer is clamped to
bs->bl.max_transfer.
Reported-by: Halil Pasic <pasic@linux.ibm.com>
Cc: Hanna Reitz <hreitz@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-block@nongnu.org
Cc: qemu-stable@nongnu.org
Fixes: 18473467d5 ("file-posix: try BLKSECTGET on block devices too, do not round to power of 2", 2021-06-25)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210923130436.1187591-1-pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Now test fails if copy-before-write is not white-listed.
Let's skip test instead.
Fixes: c060598569
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210920115538.264372-6-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Use bdrv_new_open_driver_opts() instead of complicated bdrv_open().
Among other extra things bdrv_open() also check for white-listed
formats, which we don't want for internal node creation: currently
backup doesn't work when copy-before-write filter is not white-listed.
As well block-stream doesn't work when copy-on-read is not
white-listed.
Fixes: 751cec7a26
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2004812
Reported-by: Yanan Fu
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210920115538.264372-5-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
- options & flags is common pair for open-like functions, let's use it
- add a comment that specifies use of @options
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210920115538.264372-4-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
- use ERRP_GUARD(): function calls error_prepend(), so it must use
ERRP_GUARD(), otherwise error_prepend() would not be called when
passed errp is error_fatal
- drop error propagation, handle return code instead
- for symmetry, do error_prepend() for the second failure
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210920115538.264372-3-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add version of bdrv_new_open_driver() that supports QDict options.
We'll use it in further commit.
Simply add one more argument to bdrv_new_open_driver() is worse, as
there are too many invocations of bdrv_new_open_driver() to update
then.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210920115538.264372-2-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
When configuring QEMU with --disable-fuse, the qemu-storage-daemon
still reports FUSE command line options in its help:
$ qemu-storage-daemon -h
Usage: qemu-storage-daemon [options]
QEMU storage daemon
--export [type=]fuse,id=<id>,node-name=<node-name>,mountpoint=<file>
[,growable=on|off][,writable=on|off]
export the specified block node over FUSE
Remove this help message when FUSE is disabled, to avoid:
$ qemu-storage-daemon --export fuse
qemu-storage-daemon: --export fuse: Invalid parameter 'fuse'
Reported-by: Qing Wang <qinwang@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210816180442.2000642-1-philmd@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
There are a couple of errors in bdrv_drained_begin header comment:
- block_job_pause does not exist anymore, it has been replaced
with job_pause in b15de82867
- job_pause is automatically invoked as a .drained_begin callback
(child_job_drained_begin) by the child_job BdrvChildClass struct
in blockjob.c. So no additional pause should be required.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20210903113800.59970-1-eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The unsigned saturations are handled via generic code
using min/max. The signed saturations are expanded using
double-sized arithmetic and a saturating pack.
Since all operations are done via expansion, do not
actually set TCG_TARGET_HAS_sat_vec.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These logical and arithmetic operations are optional but trivial.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Implementing add, sub, and, or, xor as the minimal set.
This allows us to actually enable vectors in query_s390_facilities.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add registers and function stubs. The functionality
is disabled via squashing s390_facilities[2] to 0.
We must still include results for the mandatory opcodes in
tcg_target_op_def, as all opcodes are checked during tcg init.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
They are rightly values in the same enumeration.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will shortly need to be able to check facilities beyond the
first 64. Instead of explicitly masking against s390_facilities,
create a HAVE_FACILITY macro that indexes an array.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Change name to HAVE_FACILITY (david)
This emphasizes that we don't support s390, only 64-bit s390x hosts.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For usadd, we only have to consider overflow. Since ~B + B == -1,
the maximum value for A that saturates is ~B.
For ussub, we only have to consider underflow. The minimum value
that saturates to 0 from A - B is B.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Despite the comment, the members were not kept at the end.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There is no point in encoding load/store within a bit of
the memory trace info operand. Represent atomic operations
as a single read-modify-write tracepoint. Use MemOpIdx
instead of inventing a form specifically for traces.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use the MemOpIdx directly, rather than the rearrangement
of the same bits currently done by the trace infrastructure.
Pass in enum qemu_plugin_mem_rw so that we are able to treat
read-modify-write operations as a single operation.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will shortly use the MemOpIdx directly, but in the meantime
re-compute the trace meminfo.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We (will) often have the complete MemOpIdx handy, so use that.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Move this code from tcg/tcg.h to its own header.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We're about to move this out of tcg.h, so rename it
as we did when moving MemOp.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have lacked expressive support for memory sizes larger
than 64-bits for a while. Fixing that requires adjustment
to several points where we used this for array indexing,
and two places that develop -Wswitch warnings after the change.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
