v2: add small fix by Stefano, Hanna's series fixed
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Merge remote-tracking branch 'remotes/vsementsov/tags/pull-jobs-2021-10-07-v2' into staging
mirror: Handle errors after READY cancel
v2: add small fix by Stefano, Hanna's series fixed
# gpg: Signature made Thu 07 Oct 2021 08:25:07 AM PDT
# gpg: using RSA key 8B9C26CDB2FD147C880E86A1561F24C1F19F79FB
# gpg: Good signature from "Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8B9C 26CD B2FD 147C 880E 86A1 561F 24C1 F19F 79FB
* remotes/vsementsov/tags/pull-jobs-2021-10-07-v2:
iotests: Add mirror-ready-cancel-error test
mirror: Do not clear .cancelled
mirror: Stop active mirroring after force-cancel
mirror: Check job_is_cancelled() earlier
mirror: Use job_is_cancelled()
job: Add job_cancel_requested()
job: Do not soft-cancel after a job is done
jobs: Give Job.force_cancel more meaning
job: @force parameter for job_cancel_sync()
job: Force-cancel jobs in a failed transaction
mirror: Drop s->synced
mirror: Keep s->synced on error
job: Context changes in job_completed_txn_abort()
block/aio_task: assert `max_busy_tasks` is greater than 0
block/backup: avoid integer overflow of `max-workers`
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
- Add Zb[abcs] instruction support
- Remove RVB support
- Bug fix of setting mstatus_hs.[SD|FS] bits
- Mark some UART devices as 'input'
- QOMify PolarFire MMUART
- Fixes for sifive PDMA
- Mark shakti_c as not user creatable
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Merge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20211007' into staging
Third RISC-V PR for QEMU 6.2
- Add Zb[abcs] instruction support
- Remove RVB support
- Bug fix of setting mstatus_hs.[SD|FS] bits
- Mark some UART devices as 'input'
- QOMify PolarFire MMUART
- Fixes for sifive PDMA
- Mark shakti_c as not user creatable
# gpg: Signature made Wed 06 Oct 2021 11:42:53 PM PDT
# gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
* remotes/alistair23/tags/pull-riscv-to-apply-20211007: (26 commits)
hw/riscv: shakti_c: Mark as not user creatable
hw/dma: sifive_pdma: Don't run DMA when channel is disclaimed
hw/dma: sifive_pdma: Fix Control.claim bit detection
hw/char/mchp_pfsoc_mmuart: QOM'ify PolarFire MMUART
hw/char/mchp_pfsoc_mmuart: Use a MemoryRegion container
hw/char/mchp_pfsoc_mmuart: Simplify MCHP_PFSOC_MMUART_REG definition
hw/char: sifive_uart: Register device in 'input' category
hw/char: shakti_uart: Register device in 'input' category
hw/char: ibex_uart: Register device in 'input' category
target/riscv: Set mstatus_hs.[SD|FS] bits if Clean and V=1 in mark_fs_dirty()
disas/riscv: Add Zb[abcs] instructions
target/riscv: Remove RVB (replaced by Zb[abcs])
target/riscv: Add zext.h instructions to Zbb, removing pack/packu/packh
target/riscv: Add rev8 instruction, removing grev/grevi
target/riscv: Add a REQUIRE_32BIT macro
target/riscv: Add orc.b instruction for Zbb, removing gorc/gorci
target/riscv: Reassign instructions to the Zbb-extension
target/riscv: Add instructions of the Zbc-extension
target/riscv: Reassign instructions to the Zbs-extension
target/riscv: Remove shift-one instructions (proposed Zbo in pre-0.93 draft-B)
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Test what happens when there is an I/O error after a mirror job in the
READY phase has been cancelled.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-14-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Clearing .cancelled before leaving the main loop when the job has been
soft-cancelled is no longer necessary since job_is_cancelled() only
returns true for jobs that have been force-cancelled.
Therefore, this only makes a differences in places that call
job_cancel_requested(). In block/mirror.c, this is done only before
.cancelled was cleared.
In job.c, there are two callers:
- job_completed_txn_abort() asserts that .cancelled is true, so keeping
it true will not affect this place.
- job_complete() refuses to let a job complete that has .cancelled set.
It is correct to refuse to let the user invoke job-complete on mirror
jobs that have already been soft-cancelled.
With this change, there are no places that reset .cancelled to false and
so we can be sure that .force_cancel can only be true if .cancelled is
true as well. Assert this in job_is_cancelled().
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-13-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Once the mirror job is force-cancelled (job_is_cancelled() is true), we
should not generate new I/O requests. This applies to active mirroring,
too, so stop it once the job is cancelled.
(We must still forward all I/O requests to the source, though, of
course, but those are not really I/O requests generated by the job, so
this is fine.)
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-12-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
We must check whether the job is force-cancelled early in our main loop,
most importantly before any `continue` statement. For example, we used
to have `continue`s before our current checking location that are
triggered by `mirror_flush()` failing. So, if `mirror_flush()` kept
failing, force-cancelling the job would not terminate it.
Jobs can be cancelled while they yield, and once they are
(force-cancelled), they should not generate new I/O requests.
Therefore, we should put the check after the last yield before
mirror_iteration() is invoked.
Buglink: https://gitlab.com/qemu-project/qemu/-/issues/462
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-11-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
mirror_drained_poll() returns true whenever the job is cancelled,
because "we [can] be sure that it won't issue more requests". However,
this is only true for force-cancelled jobs, so use job_is_cancelled().
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-10-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Most callers of job_is_cancelled() actually want to know whether the job
is on its way to immediate termination. For example, we refuse to pause
jobs that are cancelled; but this only makes sense for jobs that are
really actually cancelled.
A mirror job that is cancelled during READY with force=false should
absolutely be allowed to pause. This "cancellation" (which is actually
a kind of completion) may take an indefinite amount of time, and so
should behave like any job during normal operation. For example, with
on-target-error=stop, the job should stop on write errors. (In
contrast, force-cancelled jobs should not get write errors, as they
should just terminate and not do further I/O.)
Therefore, redefine job_is_cancelled() to only return true for jobs that
are force-cancelled (which as of HEAD^ means any job that interprets the
cancellation request as a request for immediate termination), and add
job_cancel_requested() as the general variant, which returns true for
any jobs which have been requested to be cancelled, whether it be
immediately or after an arbitrarily long completion phase.
Finally, here is a justification for how different job_is_cancelled()
invocations are treated by this patch:
- block/mirror.c (mirror_run()):
- The first invocation is a while loop that should loop until the job
has been cancelled or scheduled for completion. What kind of cancel
does not matter, only the fact that the job is supposed to end.
- The second invocation wants to know whether the job has been
soft-cancelled. Calling job_cancel_requested() is a bit too broad,
but if the job were force-cancelled, we should leave the main loop
as soon as possible anyway, so this should not matter here.
- The last two invocations already check force_cancel, so they should
continue to use job_is_cancelled().
- block/backup.c, block/commit.c, block/stream.c, anything in tests/:
These jobs know only force-cancel, so there is no difference between
job_is_cancelled() and job_cancel_requested(). We can continue using
job_is_cancelled().
- job.c:
- job_pause_point(), job_yield(), job_sleep_ns(): Only force-cancelled
jobs should be prevented from being paused. Continue using job_is_cancelled().
- job_update_rc(), job_finalize_single(), job_finish_sync(): These
functions are all called after the job has left its main loop. The
mirror job (the only job that can be soft-cancelled) will clear
.cancelled before leaving the main loop if it has been
soft-cancelled. Therefore, these functions will observe .cancelled
to be true only if the job has been force-cancelled. We can
continue to use job_is_cancelled().
(Furthermore, conceptually, a soft-cancelled mirror job should not
report to have been cancelled. It should report completion (see
also the block-job-cancel QAPI documentation). Therefore, it makes
sense for these functions not to distinguish between a
soft-cancelled mirror job and a job that has completed as normal.)
- job_completed_txn_abort(): All jobs other than @job have been
force-cancelled. job_is_cancelled() must be true for them.
Regarding @job itself: job_completed_txn_abort() is mostly called
when the job's return value is not 0. A soft-cancelled mirror has a
return value of 0, and so will not end up here then.
However, job_cancel() invokes job_completed_txn_abort() if the job
has been deferred to the main loop, which is mostly the case for
completed jobs (which skip the assertion), but not for sure.
To be safe, use job_cancel_requested() in this assertion.
- job_complete(): This is function eventually invoked by the user
(through qmp_block_job_complete() or qmp_job_complete(), or
job_complete_sync(), which comes from qemu-img). The intention here
is to prevent a user from invoking job-complete after the job has
been cancelled. This should also apply to soft cancelling: After a
mirror job has been soft-cancelled, the user should not be able to
decide otherwise and have it complete as normal (i.e. pivoting to
the target).
- job_cancel(): Both functions are equivalent (see comment there), but
we want to use job_is_cancelled(), because this shows that we call
job_completed_txn_abort() only for force-cancelled jobs. (As
explained for job_update_rc(), soft-cancelled jobs should be treated
as if they have completed as normal.)
Buglink: https://gitlab.com/qemu-project/qemu/-/issues/462
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-9-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
The only job that supports a soft cancel mode is the mirror job, and in
such a case it resets its .cancelled field before it leaves its .run()
function, so it does not really count as cancelled.
However, it is possible to cancel the job after .run() returns and
before job_exit() (which is run in the main loop) is executed. Then,
.cancelled would still be true and the job would count as cancelled.
This does not seem to be in the interest of the mirror job, so adjust
job_cancel_async() to not set .cancelled in such a case, and
job_cancel() to not invoke job_completed_txn_abort().
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-8-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
We largely have two cancel modes for jobs:
First, there is actual cancelling. The job is terminated as soon as
possible, without trying to reach a consistent result.
Second, we have mirror in the READY state. Technically, the job is not
really cancelled, but it just is a different completion mode. The job
can still run for an indefinite amount of time while it tries to reach a
consistent result.
We want to be able to clearly distinguish which cancel mode a job is in
(when it has been cancelled). We can use Job.force_cancel for this, but
right now it only reflects cancel requests from the user with
force=true, but clearly, jobs that do not even distinguish between
force=false and force=true are effectively always force-cancelled.
So this patch has Job.force_cancel signify whether the job will
terminate as soon as possible (force_cancel=true) or whether it will
effectively remain running despite being "cancelled"
(force_cancel=false).
To this end, we let jobs that provide JobDriver.cancel() tell the
generic job code whether they will terminate as soon as possible or not,
and for jobs that do not provide that method we assume they will.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20211006151940.214590-7-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Callers should be able to specify whether they want job_cancel_sync() to
force-cancel the job or not.
In fact, almost all invocations do not care about consistency of the
result and just want the job to terminate as soon as possible, so they
should pass force=true. The replication block driver is the exception,
specifically the active commit job it runs.
As for job_cancel_sync_all(), all callers want it to force-cancel all
jobs, because that is the point of it: To cancel all remaining jobs as
quickly as possible (generally on process termination). So make it
invoke job_cancel_sync() with force=true.
This changes some iotest outputs, because quitting qemu while a mirror
job is active will now lead to it being cancelled instead of completed,
which is what we want. (Cancelling a READY mirror job with force=false
may take an indefinite amount of time, which we do not want when
quitting. If users want consistent results, they must have all jobs be
done before they quit qemu.)
Buglink: https://gitlab.com/qemu-project/qemu/-/issues/462
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-6-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
When a transaction is aborted, no result matters, and so all jobs within
should be force-cancelled.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-5-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
As of HEAD^, there is no meaning to s->synced other than whether the job
is READY or not. job_is_ready() gives us that information, too.
Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20211006151940.214590-4-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
An error does not take us out of the READY phase, which is what
s->synced signifies. It does of course mean that source and target are
no longer in sync, but that is what s->actively_sync is for -- s->synced
never meant that source and target are in sync, only that they were at
some point (and at that point we transitioned into the READY phase).
The tangible problem is that we transition to READY once we are in sync
and s->synced is false. By resetting s->synced here, we will transition
from READY to READY once the error is resolved (if the job keeps
running), and that transition is not allowed.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20211006151940.214590-3-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Finalizing the job may cause its AioContext to change. This is noted by
job_exit(), which points at job_txn_apply() to take this fact into
account.
However, job_completed() does not necessarily invoke job_txn_apply()
(through job_completed_txn_success()), but potentially also
job_completed_txn_abort(). The latter stores the context in a local
variable, and so always acquires the same context at its end that it has
released in the beginning -- which may be a different context from the
one that job_exit() releases at its end. If it is different, qemu
aborts ("qemu_mutex_unlock_impl: Operation not permitted").
Drop the local @outer_ctx variable from job_completed_txn_abort(), and
instead re-acquire the actual job's context at the end of the function,
so job_exit() will release the same.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006151940.214590-2-hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Mark the shakti_c machine as not user creatable.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/639
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <c617a04d4e3dd041a3427b47a1b1d5ab475a2edd.1632871759.git.alistair.francis@wdc.com>
At present the codes detect whether the DMA channel is claimed by:
claimed = !!s->chan[ch].control & CONTROL_CLAIM;
As ! has higher precedence over & (bitwise and), this is essentially
claimed = (!!s->chan[ch].control) & CONTROL_CLAIM;
which is wrong, as any non-zero bit set in the control register will
produce a result of a claimed channel.
Fixes: de7c7988d2 ("hw/dma: sifive_pdma: reset Next* registers when Control.claim is set")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210927072124.1564129-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
- Embed SerialMM in MchpPfSoCMMUartState and QOM-initialize it
- Alias SERIAL_MM 'chardev' property on MCHP_PFSOC_UART
- Forward SerialMM sysbus IRQ in mchp_pfsoc_mmuart_realize()
- Add DeviceReset() method
- Add vmstate structure for migration
- Register device in 'input' category
- Keep mchp_pfsoc_mmuart_create() behavior
Note, serial_mm_init() calls qdev_set_legacy_instance_id().
This call is only needed for backwards-compatibility of incoming
migration data with old versions of QEMU which implemented migration
of devices with hand-rolled code. Since this device didn't previously
handle migration at all, then it doesn't need to set the legacy
instance ID.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210925133407.1259392-4-f4bug@amsat.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Our device have 2 different I/O regions:
- a 16550 UART mapped for 32-bit accesses
- 13 extra registers
Instead of mapping each region on the main bus, introduce
a container, map the 2 devices regions on the container,
and map the container on the main bus.
Before:
(qemu) info mtree
...
0000000020100000-000000002010001f (prio 0, i/o): serial
0000000020100020-000000002010101f (prio 0, i/o): mchp.pfsoc.mmuart
0000000020102000-000000002010201f (prio 0, i/o): serial
0000000020102020-000000002010301f (prio 0, i/o): mchp.pfsoc.mmuart
0000000020104000-000000002010401f (prio 0, i/o): serial
0000000020104020-000000002010501f (prio 0, i/o): mchp.pfsoc.mmuart
0000000020106000-000000002010601f (prio 0, i/o): serial
0000000020106020-000000002010701f (prio 0, i/o): mchp.pfsoc.mmuart
After:
(qemu) info mtree
...
0000000020100000-0000000020100fff (prio 0, i/o): mchp.pfsoc.mmuart
0000000020100000-000000002010001f (prio 0, i/o): serial
0000000020100020-0000000020100fff (prio 0, i/o): mchp.pfsoc.mmuart.regs
0000000020102000-0000000020102fff (prio 0, i/o): mchp.pfsoc.mmuart
0000000020102000-000000002010201f (prio 0, i/o): serial
0000000020102020-0000000020102fff (prio 0, i/o): mchp.pfsoc.mmuart.regs
0000000020104000-0000000020104fff (prio 0, i/o): mchp.pfsoc.mmuart
0000000020104000-000000002010401f (prio 0, i/o): serial
0000000020104020-0000000020104fff (prio 0, i/o): mchp.pfsoc.mmuart.regs
0000000020106000-0000000020106fff (prio 0, i/o): mchp.pfsoc.mmuart
0000000020106000-000000002010601f (prio 0, i/o): serial
0000000020106020-0000000020106fff (prio 0, i/o): mchp.pfsoc.mmuart.regs
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Message-id: 20210925133407.1259392-3-f4bug@amsat.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The current MCHP_PFSOC_MMUART_REG_SIZE definition represent the
size occupied by all the registers. However all registers are
32-bit wide, and the MemoryRegionOps handlers are restricted to
32-bit:
static const MemoryRegionOps mchp_pfsoc_mmuart_ops = {
.read = mchp_pfsoc_mmuart_read,
.write = mchp_pfsoc_mmuart_write,
.impl = {
.min_access_size = 4,
.max_access_size = 4,
},
Avoid being triskaidekaphobic, simplify by using the number of
registers.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210925133407.1259392-2-f4bug@amsat.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The category of sifive_uart device is not set. Put it into the
'input' category.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210926105003.2716-3-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The category of shakti_uart device is not set. Put it into the
'input' category.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210926105003.2716-2-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The category of ibex_uart device is not set. Put it into the
'input' category.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210926105003.2716-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
When V=1, both vsstauts.FS and HS-level sstatus.FS are in effect.
Modifying the floating-point state when V=1 causes both fields to
be set to 3 (Dirty).
However, it's possible that HS-level sstatus.FS is Clean and VS-level
vsstatus.FS is Dirty at the time mark_fs_dirty() is called when V=1.
We can't early return for this case because we still need to set
sstatus.FS to Dirty according to spec.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Vincent Chen <vincent.chen@sifive.com>
Tested-by: Vincent Chen <vincent.chen@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210921020234.123448-1-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
With the addition of Zb[abcs], we also need to add disassembler
support for these new instructions.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
With everything classified as Zb[abcs] and pre-0.93 draft-B
instructions that are not part of Zb[abcs] removed, we can remove the
remaining support code for RVB.
Note that RVB has been retired for good and misa.B will neither mean
'some' or 'all of' Zb*:
https://lists.riscv.org/g/tech-bitmanip/message/532
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: 20210911140016.834071-16-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 1.0.0 version of Zbb does not contain pack/packu/packh. However, a
zext.h instruction is provided (built on pack/packh from pre-0.93
draft-B) is available.
This commit adds zext.h and removes the pack* instructions.
Note that the encodings for zext.h are different between RV32 and
RV64, which is handled through REQUIRE_32BIT.
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>
Message-id: 20210911140016.834071-15-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 1.0.0 version of Zbb does not contain grev/grevi. Instead, a
rev8 instruction (equivalent to the rev8 pseudo-instruction built on
grevi from pre-0.93 draft-B) is available.
This commit adds the new rev8 instruction and removes grev/grevi.
Note that there is no W-form of this instruction (both a
sign-extending and zero-extending 32-bit version can easily be
synthesized by following rev8 with either a srai or srli instruction
on RV64) and that the opcode encodings for rev8 in RV32 and RV64 are
different.
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>
Message-id: 20210911140016.834071-14-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
With the changes to Zb[abcs], there's some encodings that are
different in RV64 and RV32 (e.g., for rev8 and zext.h). For these,
we'll need a helper macro allowing us to select on RV32, as well.
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: 20210911140016.834071-13-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 1.0.0 version of Zbb does not contain gorc/gorci. Instead, a
orc.b instruction (equivalent to the orc.b pseudo-instruction built on
gorci from pre-0.93 draft-B) is available, mainly targeting
string-processing workloads.
This commit adds the new orc.b instruction and removed gorc/gorci.
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>
Message-id: 20210911140016.834071-12-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This reassigns the instructions that are part of Zbb into it, with the
notable exceptions of the instructions (rev8, zext.w and orc.b) that
changed due to gorci, grevi and pack not being part of Zb[abcs].
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: 20210911140016.834071-11-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The following instructions are part of Zbc:
- clmul
- clmulh
- clmulr
Note that these instructions were already defined in the pre-0.93 and
the 0.93 draft-B proposals, but had not been omitted in the earlier
addition of draft-B to QEmu.
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>
Message-id: 20210911140016.834071-10-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The following instructions are part of Zbs:
- b{set,clr,ext,inv}
- b{set,clr,ext,inv}i
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: 20210911140016.834071-9-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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>
