qemu-options: Improve readability of SMP related Docs

We have a description in qemu-options.hx for each CPU topology
parameter to explain what it exactly means, and also an extra
declaration for the target-specific one, e.g. "for PC only"
when describing "dies", and "for PC, it's on one die" when
describing "cores".

Now we are going to introduce one more non-generic parameter
"clusters", it will make the Doc less readable and  if we still
continue to use the legacy way to describe it.

So let's at first make two tweaks of the Docs to improve the
readability and also scalability:
1) In the -help text: Delete the extra specific declaration and
   describe each topology parameter level by level. Then add a
   note to declare that different machines may support different
   subsets and the actual meaning of the supported parameters
   will vary accordingly.
2) In the rST text: List all the sub-hierarchies currently
   supported in QEMU, and correspondingly give an example of
   -smp configuration for each of them.

Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211228092221.21068-2-wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

hw/core: Rename smp_parse() -> machine_parse_smp_config()

All methods related to MachineState are prefixed with "machine_".
smp_parse() does not need to be an exception. Rename it and
const'ify the SMPConfiguration argument, since it doesn't need
to be modified.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211216132015.815493-9-philmd@redhat.com>

tests/unit/test-smp-parse: Constify some pointer/struct

Declare structures const when we don't need to modify
them at runtime.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211216132015.815493-8-philmd@redhat.com>

tests/unit/test-smp-parse: Simplify pointer to compound literal use

We can simply use a local variable (and pass its pointer) instead
of a pointer to a compound literal.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211216132015.815493-7-philmd@redhat.com>

tests/unit/test-smp-parse: Add 'smp-generic-valid' machine type

Keep the common TYPE_MACHINE class initialization in
machine_base_class_init(), make it abstract, and move
the non-common code to a new class: "smp-generic-valid".

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Message-Id: <20211216132015.815493-6-philmd@redhat.com>

tests/unit/test-smp-parse: Add 'smp-generic-invalid' machine type

Avoid modifying the MachineClass internals by adding the
'smp-generic-invalid' machine, which inherits from TYPE_MACHINE.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Message-Id: <20211216132015.815493-5-philmd@redhat.com>

tests/unit/test-smp-parse: Add 'smp-with-dies' machine type

Avoid modifying the MachineClass internals by adding the
'smp-with-dies' machine, which inherits from TYPE_MACHINE.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Tested-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211216132015.815493-4-philmd@redhat.com>

tests/unit/test-smp-parse: Split the 'generic' test in valid / invalid

Split the 'generic' test in two tests: 'valid' and 'invalid'.
This will allow us to remove the hack which modifies the
MachineClass internal state.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211216132015.815493-3-philmd@redhat.com>

tests/unit/test-smp-parse: Pass machine type as argument to tests

Use g_test_add_data_func() instead of g_test_add_func() so we can
pass the machine type to the tests (we will soon have different
machine types).

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211216132015.815493-2-philmd@redhat.com>

hw/qdev: Rename qdev_connect_gpio_out*() 'input_pin' parameter

@pin is an input where we connect a device output.
Rename it @input_pin to simplify the documentation.

Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211218130437.1516929-5-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

hw/qdev: Correct qdev_connect_gpio_out_named() documentation

qdev_connect_gpio_out_named() is described as qdev_connect_gpio_out(),
and referring to itself in an endless loop, which is confusing. Fix.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Message-Id: <20211218130437.1516929-4-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

hw/qdev: Correct qdev_init_gpio_out_named() documentation

qdev_init_gpio_out_named() is described as qdev_init_gpio_out(),
and referring to itself in an endless loop, which is confusing. Fix.

Reported-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Message-Id: <20211218130437.1516929-3-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

hw/qdev: Cosmetic around documentation

Add empty lines to have a clearer distinction between different
functions declarations.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Message-Id: <20211218130437.1516929-2-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Merge tag 'memory-api-20211231' of https://github.com/philmd/qemu into staging

Memory API patches

Have various functions from the Memory API:
- take a MemTxAttrs argument,
- propagate a MemTxResult.

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* tag 'memory-api-20211231' of https://github.com/philmd/qemu: (22 commits)
  pci: Let ld*_pci_dma() propagate MemTxResult
  pci: Let st*_pci_dma() propagate MemTxResult
  pci: Let ld*_pci_dma() take MemTxAttrs argument
  pci: Let st*_pci_dma() take MemTxAttrs argument
  dma: Let ld*_dma() propagate MemTxResult
  dma: Let st*_dma() propagate MemTxResult
  dma: Let ld*_dma() take MemTxAttrs argument
  dma: Let st*_dma() take MemTxAttrs argument
  dma: Let dma_buf_rw() propagate MemTxResult
  dma: Let dma_buf_read() take MemTxAttrs argument
  dma: Let dma_buf_write() take MemTxAttrs argument
  dma: Let dma_buf_rw() take MemTxAttrs argument
  pci: Let pci_dma_rw() take MemTxAttrs argument
  dma: Have dma_buf_read() / dma_buf_write() take a void pointer
  dma: Have dma_buf_rw() take a void pointer
  dma: Let dma_memory_map() take MemTxAttrs argument
  dma: Let dma_memory_read/write() take MemTxAttrs argument
  dma: Let dma_memory_rw() take MemTxAttrs argument
  dma: Let dma_memory_rw_relaxed() take MemTxAttrs argument
  dma: Let dma_memory_set() take MemTxAttrs argument
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

pci: Let ld*_pci_dma() propagate MemTxResult

ld*_dma() returns a MemTxResult type. Do not discard
it, return it to the caller.

Update the few callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-24-philmd@redhat.com>

pci: Let st*_pci_dma() propagate MemTxResult

st*_dma() returns a MemTxResult type. Do not discard
it, return it to the caller.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-23-philmd@redhat.com>

pci: Let ld*_pci_dma() take MemTxAttrs argument

Let devices specify transaction attributes when calling ld*_pci_dma().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-22-philmd@redhat.com>

pci: Let st*_pci_dma() take MemTxAttrs argument

Let devices specify transaction attributes when calling st*_pci_dma().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-21-philmd@redhat.com>

dma: Let ld*_dma() propagate MemTxResult

dma_memory_read() returns a MemTxResult type. Do not discard
it, return it to the caller.

Update the few callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-19-philmd@redhat.com>

dma: Let st*_dma() propagate MemTxResult

dma_memory_write() returns a MemTxResult type. Do not discard
it, return it to the caller.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-18-philmd@redhat.com>

dma: Let ld*_dma() take MemTxAttrs argument

Let devices specify transaction attributes when calling ld*_dma().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-17-philmd@redhat.com>

dma: Let st*_dma() take MemTxAttrs argument

Let devices specify transaction attributes when calling st*_dma().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-16-philmd@redhat.com>

dma: Let dma_buf_rw() propagate MemTxResult

dma_memory_rw() returns a MemTxResult type. Do not discard
it, return it to the caller.

Since dma_buf_rw() was previously returning the QEMUSGList
size not consumed, add an extra argument where this size
can be stored.

Update the 2 callers.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-14-philmd@redhat.com>

dma: Let dma_buf_read() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_buf_read().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-13-philmd@redhat.com>

dma: Let dma_buf_write() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_buf_write().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-12-philmd@redhat.com>

dma: Let dma_buf_rw() take MemTxAttrs argument

Let devices specify transaction attributes when calling dma_buf_rw().

Keep the default MEMTXATTRS_UNSPECIFIED in the 2 callers.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-11-philmd@redhat.com>

pci: Let pci_dma_rw() take MemTxAttrs argument

Let devices specify transaction attributes when calling pci_dma_rw().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-10-philmd@redhat.com>

dma: Have dma_buf_read() / dma_buf_write() take a void pointer

DMA operations are run on any kind of buffer, not arrays of
uint8_t. Convert dma_buf_read/dma_buf_write functions to take
a void pointer argument and save us pointless casts to uint8_t *.

Remove this pointless casts in the megasas device model.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-9-philmd@redhat.com>

dma: Have dma_buf_rw() take a void pointer

DMA operations are run on any kind of buffer, not arrays of
uint8_t. Convert dma_buf_rw() to take a void pointer argument
to save us pointless casts to uint8_t *.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-8-philmd@redhat.com>

dma: Let dma_memory_map() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_memory_map().

Patch created mechanically using spatch with this script:

  @@
  expression E1, E2, E3, E4;
  @@
  - dma_memory_map(E1, E2, E3, E4)
  + dma_memory_map(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-7-philmd@redhat.com>

dma: Let dma_memory_read/write() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_memory_read() or dma_memory_write().

Patch created mechanically using spatch with this script:

  @@
  expression E1, E2, E3, E4;
  @@
  (
  - dma_memory_read(E1, E2, E3, E4)
  + dma_memory_read(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED)
  |
  - dma_memory_write(E1, E2, E3, E4)
  + dma_memory_write(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED)
  )

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-6-philmd@redhat.com>

dma: Let dma_memory_rw() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_memory_rw().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-5-philmd@redhat.com>

dma: Let dma_memory_rw_relaxed() take MemTxAttrs argument

We will add the MemTxAttrs argument to dma_memory_rw() in
the next commit. Since dma_memory_rw_relaxed() is only used
by dma_memory_rw(), modify it first in a separate commit to
keep the next commit easier to review.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-4-philmd@redhat.com>

dma: Let dma_memory_set() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_memory_set().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-3-philmd@redhat.com>

dma: Let dma_memory_valid() take MemTxAttrs argument

Let devices specify transaction attributes when calling
dma_memory_valid().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-2-philmd@redhat.com>

hw/scsi/megasas: Use uint32_t for reply queue head/tail values

While the reply queue values fit in 16-bit, they are accessed
as 32-bit:

  661:    s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa);
  662:    s->reply_queue_head %= MEGASAS_MAX_FRAMES;
  663:    s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
  664:    s->reply_queue_tail %= MEGASAS_MAX_FRAMES;

Having:

  41:#define MEGASAS_MAX_FRAMES 2048         /* Firmware limit at 65535 */

In order to update the ld/st*_pci_dma() API to pass the address
of the value to access, it is simpler to have the head/tail declared
as 32-bit values. Replace the uint16_t by uint32_t, wasting 4 bytes in
the MegasasState structure.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-20-philmd@redhat.com>

Merge tag 'pull-jobs-2021-12-29' of https://src.openvz.org/scm/~vsementsov/qemu into staging

Jobs patches:
 - small fix of job_create()
 - refactoring: drop BlockJob.blk field

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* tag 'pull-jobs-2021-12-29' of https://src.openvz.org/scm/~vsementsov/qemu:
  blockjob: drop BlockJob.blk field
  test-bdrv-drain: don't use BlockJob.blk
  block/stream: add own blk
  test-blockjob-txn: don't abuse job->blk
  blockjob: implement and use block_job_get_aio_context
  job.c: add missing notifier initialization

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

blockjob: drop BlockJob.blk field

It's unused now (except for permission handling)[*]. The only reasonable
user of it was block-stream job, recently updated to use own blk. And
other block jobs prefer to use own source node related objects.

So, the arguments of dropping the field are:

 - block jobs prefer not to use it
 - block jobs usually has more then one node to operate on, and better
   to operate symmetrically (for example has both source and target
   blk's in specific block-job state structure)

*: BlockJob.blk is used to keep some permissions. We simply move
permissions to block-job child created in block_job_create() together
with blk.

In mirror, we just should not care anymore about restoring state of
blk. Most probably this code could be dropped long ago, after dropping
bs->job pointer. Now it finally goes away together with BlockJob.blk
itself.

iotest 141 output is updated, as "bdrv_has_blk(bs)" check in
qmp_blockdev_del() doesn't fail (we don't have blk now). Still, new
error message looks even better.

In iotest 283 we need to add a job id, otherwise "Invalid job ID"
happens now earlier than permission check (as permissions moved from
blk to block-job node).

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

test-bdrv-drain: don't use BlockJob.blk

We are going to drop BlockJob.blk in further commit. For tests it's
enough to simply pass bs pointer.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

block/stream: add own blk

block-stream is the only block-job, that reasonably use BlockJob.blk.
We are going to drop BlockJob.blk soon. So, let block-stream have own
blk.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

test-blockjob-txn: don't abuse job->blk

Here we use job->blk to drop our own reference in job cleanup. Let's do
simpler: drop our reference immediately after job creation.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

blockjob: implement and use block_job_get_aio_context

We are going to drop BlockJob.blk. So let's retrieve block job context
from underlying job instead of main node.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

job.c: add missing notifier initialization

It seems that on_idle list is not properly initialized like
the other notifiers.

Fixes: 34dc97b9a0e ("blockjob: Wake up BDS when job becomes idle")
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

Merge tag 'pull-pa-20211223' of https://gitlab.com/rth7680/qemu into staging

Fix target/hppa #635

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* tag 'pull-pa-20211223' of https://gitlab.com/rth7680/qemu:
  target/hppa: Fix deposit assert from trans_shrpw_imm

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa: Fix deposit assert from trans_shrpw_imm

Because sa may be 0,

    tcg_gen_deposit_reg(dest, t0, cpu_gr[a->r1], 32 - sa, sa);

may attempt a zero-width deposit at bit 32, which will assert
for TARGET_REGISTER_BITS == 32.

Use the newer extract2 when possible, which itself includes the
rotri special case; otherwise mirror the code from trans_shrpw_sar,
using concat and shri.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/635
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'for-upstream-mtest' of https://gitlab.com/bonzini/qemu into staging

Replace tap-driver.pl with "meson test".

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* tag 'for-upstream-mtest' of https://gitlab.com/bonzini/qemu:
  build: use "meson test" as the test harness

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'pull-nbd-2021-12-22-v2' of https://src.openvz.org/scm/~vsementsov/qemu into staging

nbd: reconnect-on-open feature
  v2: simple fix for mypy and pylint complains on patch 04

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* tag 'pull-nbd-2021-12-22-v2' of https://src.openvz.org/scm/~vsementsov/qemu:
  iotests: add nbd-reconnect-on-open test
  iotests.py: add qemu_io_popen()
  iotests.py: add and use qemu_io_wrap_args()
  iotests.py: add qemu_tool_popen()
  nbd/client-connection: improve error message of cancelled attempt
  nbd/client-connection: nbd_co_establish_connection(): return real error
  nbd: allow reconnect on open, with corresponding new options

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

build: use "meson test" as the test harness

"meson test" starting with version 0.57 is just as capable and easy to
use as QEMU's own TAP driver.  All existing options for "make check"
work.  The only required code change involves how to mark "slow" tests;
they need to belong to an additional "slow" suite.

The rules for .tap output are replaced by JUnit XML; GitLab is able
to parse that output and present it in the CI pipeline report.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

iotests: add nbd-reconnect-on-open test

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

iotests.py: add qemu_io_popen()

Add qemu-io Popen constructor wrapper. To be used in the following new
test commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

iotests.py: add and use qemu_io_wrap_args()

For qemu_io* functions support --image-opts argument, which conflicts
with -f argument from qemu_io_args.

For QemuIoInteractive use new wrapper as well, which allows relying on
default format.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

iotests.py: add qemu_tool_popen()

Split qemu_tool_popen() from qemu_tool_pipe_and_status() to be used
separately.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>

Merge tag 'pull-block-2021-12-22' of https://gitlab.com/hreitz/qemu into staging

Block patches:
- Added support to the iotests for running tests in several parallel
  jobs (using the new -j parameter)

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* tag 'pull-block-2021-12-22' of https://gitlab.com/hreitz/qemu:
  iotests: check: multiprocessing support
  iotests/testrunner.py: move updating last_elapsed to run_tests
  iotests/testrunner.py: add doc string for run_test()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

iotests: check: multiprocessing support

Add -j <JOBS> parameter, to run tests in several jobs simultaneously.
For realization - simply utilize multiprocessing.Pool class.

Notes:

1. Of course, tests can't run simultaneously in same TEST_DIR. So,
   use subdirectories TEST_DIR/testname/ and SOCK_DIR/testname/
   instead of simply TEST_DIR and SOCK_DIR

2. multiprocessing.Pool.starmap function doesn't support passing
   context managers, so we can't simply pass "self". Happily, we need
   self only for read-only access, and it just works if it is defined
   in global space. So, add a temporary link TestRunner.shared_self
   during run_tests().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211203122223.2780098-4-vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

iotests/testrunner.py: move updating last_elapsed to run_tests

We are going to use do_run_test() in multiprocessing environment, where
we'll not be able to change original runner object.

Happily, the only thing we change is that last_elapsed and it's simple
to do it in run_tests() instead. All other accesses to self in
do_runt_test() and in run_test() are read-only.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211203122223.2780098-3-vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

iotests/testrunner.py: add doc string for run_test()

We are going to modify these methods and will add more documentation in
further commit. As a preparation add basic documentation.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211203122223.2780098-2-vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

Merge tag 'pull-request-2021-12-22' of https://gitlab.com/thuth/qemu into staging

* Fixes for the virtio-net-failover test
* Silence warnings in the boot-serial-test
* Make qtests more flexible wrt missing machines and devices

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* tag 'pull-request-2021-12-22' of https://gitlab.com/thuth/qemu:
  tests/qtest/virtio-net-failover: Use g_file_open_tmp() to create temporary file
  tests/qtest/boot-order-test: Check whether machines are available
  tests/qtest/cdrom-test: Check whether devices are available before using them
  tests/qtest: Improve endianness-test to work with missing machines and devices
  tests/qtest: Add a function that checks whether a device is available
  MAINTAINERS: Update COLO Proxy section
  tests/qtest: Make the filter tests independent from a specific NIC
  tests/qtest/boot-serial-test: Silence the warning about deprecated sga device
  failover: Silence warning messages during qtest

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tests/qtest/virtio-net-failover: Use g_file_open_tmp() to create temporary file

g_test_rand_int() must not be called before g_test_init(), otherwise
the glib will show a "g_rand_int: assertion 'rand != NULL' failed"
message in the log. So we could change the order here, but actually,
it's safer to use g_file_open_tmp() anyway, so let's use that function
now instead.

Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211222083652.776592-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest/boot-order-test: Check whether machines are available

Machines might not always be compiled into the QEMU binary, so
we should skip the test instead of failing if it is not available.

Message-Id: <20211220081054.151515-5-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest/cdrom-test: Check whether devices are available before using them

Downstream users might want to disable legacy devices in their binaries,
so we should not blindly assume that they are available. Add some proper
checks before using them.

Message-Id: <20211220081054.151515-4-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest: Improve endianness-test to work with missing machines and devices

The users might have built QEMU with less machines or without the
i82378 superio device. Add some checks to the endianess-test so that
it is able to deal with such stripped down QEMU versions, too.

Message-Id: <20211220081054.151515-3-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest: Add a function that checks whether a device is available

Devices might not always be compiled into the QEMU target binaries.
We already have the libqos framework that is good for handling such
situations, but some of the qtests are not a real good fit for the
libqos framework. Let's add a qtest_has_device() function for such
tests instead.

Message-Id: <20211220081054.151515-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

MAINTAINERS: Update COLO Proxy section

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20211221080400.1492980-1-chen.zhang@intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest: Make the filter tests independent from a specific NIC

These filter tests need a NIC, no matter which one, so they use a common
NIC by default. However, these common NIC models might not always have
been compiled into the QEMU target binary, so assuming that a certain NIC
is available is a bad idea. Since the exact type of NIC does not really
matter for these tests, let's switch to "-nic" instead of "-netdev" so
that QEMU can simply pick a default NIC for us.
This way we can now run the tests on other targets that have a default
machine with an on-board/default NIC, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211220103025.311759-1-thuth@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest/boot-serial-test: Silence the warning about deprecated sga device

When running the qtests, there are currently a bunch of warnings about
the deprecated sga device during the boot-serial-test. Switch to
"-M graphics=off" to silence these warnings.

Message-Id: <20211220164042.397028-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

failover: Silence warning messages during qtest

virtio-net-failover test tries several device combinations that produces
some expected warnings.
These warning can be confusing, so we disable them during the qtest
sequence.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20211220145314.390697-1-lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
[thuth: Fix memory leak by using error_free()]
Signed-off-by: Thomas Huth <thuth@redhat.com>

Merge tag 'pull-loong-20211221-2' of https://gitlab.com/rth7680/qemu into staging

Initial commit of tcg/loongarch64

# gpg: Signature made Tue 21 Dec 2021 01:19:00 PM PST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [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: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-loong-20211221-2' of https://gitlab.com/rth7680/qemu: (30 commits)
  configure, meson.build: Mark support for loongarch64 hosts
  linux-user: Implement CPU-specific signal handler for loongarch64 hosts
  common-user: Add safe syscall handling for loongarch64 hosts
  tcg/loongarch64: Register the JIT
  tcg/loongarch64: Implement tcg_target_init
  tcg/loongarch64: Implement exit_tb/goto_tb
  tcg/loongarch64: Implement tcg_target_qemu_prologue
  tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops
  tcg/loongarch64: Implement simple load/store ops
  tcg/loongarch64: Implement tcg_out_call
  tcg/loongarch64: Implement setcond ops
  tcg/loongarch64: Implement br/brcond ops
  tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops
  tcg/loongarch64: Implement add/sub ops
  tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops
  tcg/loongarch64: Implement clz/ctz ops
  tcg/loongarch64: Implement bswap{16,32,64} ops
  tcg/loongarch64: Implement deposit/extract ops
  tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc ops
  tcg/loongarch64: Implement sign-/zero-extension ops
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

configure, meson.build: Mark support for loongarch64 hosts

Example output of `uname -a` on an initial Gentoo LA64 port, running
the upstream submission version of Linux (with some very minor patches
not influencing output here):

> Linux <hostname> 5.14.0-10342-g37a00851b145 #5 SMP PREEMPT Tue Aug 10 12:56:24 PM CST 2021 loongarch64 GNU/Linux

And the same on the vendor-supplied Loongnix 20 system, with an early
in-house port of Linux, and using the old-world ABI:

> Linux <hostname> 4.19.167-rc5.lnd.1-loongson-3 #1 SMP Sat Apr 17 07:32:32 UTC 2021 loongarch64 loongarch64 loongarch64 GNU/Linux

So a name of "loongarch64" matches both, fortunately.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-31-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

linux-user: Implement CPU-specific signal handler for loongarch64 hosts

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-30-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

common-user: Add safe syscall handling for loongarch64 hosts

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-29-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Register the JIT

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-28-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement tcg_target_init

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-27-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement exit_tb/goto_tb

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-26-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement tcg_target_qemu_prologue

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-25-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-24-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement simple load/store ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-23-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement tcg_out_call

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-22-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement setcond ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-21-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement br/brcond ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-20-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-19-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement add/sub ops

The neg_i{32,64} ops is fully expressible with sub, so omitted for
simplicity.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-18-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-17-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement clz/ctz ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-16-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement bswap{16,32,64} ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-15-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement deposit/extract ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-14-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-13-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement sign-/zero-extension ops

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-12-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement goto_ptr

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-11-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-10-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement the memory barrier op

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-9-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Implement necessary relocation operations

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-8-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Define the operand constraints

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-7-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Add register names, allocation order and input/output sets

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-6-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Add generated instruction opcodes and encoding helpers

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211221054105.178795-5-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Add the tcg-target.h file

Support for all optional TCG ops are initially marked disabled; the bits
are to be set in individual commits later.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-4-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

MAINTAINERS: Add tcg/loongarch64 entry with myself as maintainer

I ported the initial code, so I should maintain it of course.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-3-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

elf: Add machine type value for LoongArch

This is already officially allocated as recorded in GNU binutils
repo [1], and the description is updated in [2]. Add to enable further
work.

[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=4cf2ad720078a9f490dd5b5bc8893a926479196e
[2]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=01a8c731aacbdbed0eb5682d13cc074dc7e25fb3

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-2-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'dbus-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

Add D-Bus display backend

# gpg: Signature made Mon 20 Dec 2021 10:57:18 PM PST
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [unknown]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.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: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* tag 'dbus-pull-request' of https://gitlab.com/marcandre.lureau/qemu: (36 commits)
  MAINTAINERS: update D-Bus section
  ui/dbus: register D-Bus VC handler
  ui/dbus: add chardev backend & interface
  option: add g_auto for QemuOpts
  chardev: make socket derivable
  chardev: teach socket to accept no addresses
  ui/dbus: add clipboard interface
  audio: add "dbus" audio backend
  tests: start dbus-display-test
  tests/qtests: add qtest_qmp_add_client()
  ui/dbus: add p2p=on/off option
  ui: add a D-Bus display backend
  build-sys: set glib dependency version
  docs: add dbus-display documentation
  docs: move D-Bus VMState documentation to source XML
  backends: move dbus-vmstate1.xml to backends/
  docs/sphinx: add sphinx modules to include D-Bus documentation
  scripts: teach modinfo to skip non-C sources
  console: save current scanout details
  ui: move qemu_spice_fill_device_address to ui/util.c
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

nbd/client-connection: improve error message of cancelled attempt

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

nbd/client-connection: nbd_co_establish_connection(): return real error

The only caller of nbd_do_establish_connection() that uses errp is
nbd_open(). The only way to cancel this call is through open_timer
timeout. And for this case, user will be more interested in description
of last failed connect rather than in
"Connection attempt cancelled by other operation".

So, let's change behavior on cancel to return previous failure error if
available.

Do the same for non-blocking failure case. In this case we still don't
have a caller that is interested in errp. But let's be consistent.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>