Commit Graph

104867 Commits

Author SHA1 Message Date
Kevin Wolf
4b408668d0 block: Fix AioContext locking in bdrv_reopen_parse_file_or_backing()
bdrv_set_file_or_backing_noperm() requires the caller to hold the
AioContext lock for the child node, but we hold the one for the parent
node in bdrv_reopen_parse_file_or_backing(). Take the other one
temporarily.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-7-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-06-28 08:46:14 +02:00
Kevin Wolf
c066e808e1 block: Fix AioContext locking in bdrv_attach_child_common()
The function can move the child node to a different AioContext. In this
case, it also must take the AioContext lock for the new context before
calling functions that require the caller to hold the AioContext for the
child node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-6-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-06-28 08:46:12 +02:00
Kevin Wolf
8394c35ee1 block: Fix AioContext locking in bdrv_open_child()
bdrv_attach_child() requires that the caller holds the AioContext lock
for the new child node. Take it in bdrv_open_child() and document that
the caller must not hold any AioContext apart from the main AioContext.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-5-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-06-28 08:46:10 +02:00
Kevin Wolf
2065cf6b23 test-block-iothread: Lock AioContext for blk_insert_bs()
blk_insert_bs() requires that callers hold the AioContext lock for the
node that should be inserted. Take it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-4-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-06-28 08:46:08 +02:00
Kevin Wolf
415275aed9 qdev-properties-system: Lock AioContext for blk_insert_bs()
blk_insert_bs() requires that callers hold the AioContext lock for the
node that should be inserted. Take it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-3-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-06-28 08:46:05 +02:00
Kevin Wolf
23e6c3c41b iotests: Test active commit with iothread and background I/O
This is a better regression test for the bugs hidden by commit 80fc5d26
('graph-lock: Disable locking for now'). With that commit reverted, it
hangs instantaneously and reliably for me.

It is important to have a reliable test like this, because the following
commits will set out to fix the actual root cause of the deadlocks and
then finally revert commit 80fc5d26, which was only a stopgap solution.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-2-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-06-28 08:45:46 +02:00
Richard Henderson
52ed34cbdd * Improve gitlab-CI with regards to handling of stable staging branches
* Add msys2 gitlab-CI artifacts
 * Minor qtest fixes
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Merge tag 'pull-request-2023-06-26' of https://gitlab.com/thuth/qemu into staging

* Improve gitlab-CI with regards to handling of stable staging branches
* Add msys2 gitlab-CI artifacts
* Minor qtest fixes

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# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [undefined]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [undefined]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
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* tag 'pull-request-2023-06-26' of https://gitlab.com/thuth/qemu:
  tests/qtest/cxl-test: Clean up temporary directories after testing
  gitlab-ci: add msys2 meson test to junit report
  gitlab-ci: grab msys2 meson-logs as artifacts
  gitlab: support disabling job auto-run in upstream
  gitlab: avoid extra pipelines for tags and stable branches
  gitlab: stable staging branches publish containers in a separate tag
  gitlab: allow overriding name of the upstream repository
  gitlab: centralize the container tag name
  tests/qtest: Fix a comment typo in vhost-user-test.c

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-26 10:38:41 +02:00
Thomas Huth
b197ea8636 tests/qtest/cxl-test: Clean up temporary directories after testing
It's good style to clean up temporary directories when they
are not needed anymore.

Message-Id: <20230622114132.372898-1-thuth@redhat.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 09:01:33 +02:00
Marc-André Lureau
81a12315ad gitlab-ci: add msys2 meson test to junit report
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230620153720.514882-3-marcandre.lureau@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Marc-André Lureau
a3fcbb4790 gitlab-ci: grab msys2 meson-logs as artifacts
Rename build directory to "build", like most other CI builds.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230620153720.514882-2-marcandre.lureau@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Daniel P. Berrangé
49ac76c2a0 gitlab: support disabling job auto-run in upstream
In forks QEMU_CI=1 can be used to create a pipeline but not auto-run any
jobs. In upstream jobs always auto-run, which is equiv of QEMU_CI=2.

This supports setting QEMU_CI=1 in upstream, to disable job auto-run.
This can be used to preserve CI minutes if repushing a branch to staging
with a specific fix that only needs testing in limited scenarios.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-6-berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Daniel P. Berrangé
a77ef83cf8 gitlab: avoid extra pipelines for tags and stable branches
In upstream context we only run pipelines on staging branches, and
limited publishing jobs on the default branch.

We don't want to run pipelines on stable branches, or tags, because
the content will have already been tested on a staging branch before
getting pushed.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-5-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Daniel P. Berrangé
e28112d007 gitlab: stable staging branches publish containers in a separate tag
If the stable staging branches publish containers under the 'latest' tag
they will clash with containers published on the primary staging branch,
as well  as with each other. This introduces logic that overrides the
container tag when jobs run against the stable staging branches.

The CI_COMMIT_REF_SLUG variable we use expands to the git branch name,
but with most special characters removed, such that it is valid as a
docker tag name. eg 'staging-8.0' will get a slug of 'staging-8-0'

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-4-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Daniel P. Berrangé
1ddd2ff9cd gitlab: allow overriding name of the upstream repository
The CI rules have special logic for what happens in upstream. To enable
contributors who modify CI rules to test this logic, however, they need
to be able to override which repo is considered upstream. This
introduces the 'QEMU_CI_UPSTREAM' variable

  git push gitlab <branch> -o ci.variable=QEMU_CI_UPSTREAM=berrange

to make it look as if my namespace is the actual upstream. Namespace in
this context refers to the path fragment in gitlab URLs that is above
the repository. Typically this will be the contributor's gitlab login
name.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-3-berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Daniel P. Berrangé
d4c7a56539 gitlab: centralize the container tag name
We use a fixed container tag of 'latest' so that contributors' forks
don't end up with an ever growing number of containers as they work
on throwaway feature branches.

This fixed tag causes problems running CI upstream in stable staging
branches, however, because the stable staging branch will publish old
container content that clashes with that needed by primary staging
branch. This makes it impossible to reliably run CI pipelines in
parallel in upstream for different staging branches.

This introduces $QEMU_CI_CONTAINER_TAG global variable as a way to
change which tag container publishing uses. Initially it can be set
by contributors as a git push option if they want to override the
default use of 'latest' eg

  git push gitlab <branch> -o ci.variable=QEMU_CONTAINER_TAG=fish

this is useful if contributors need to run pipelines for different
branches concurrently in their forks.

Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-2-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Milan Zamazal
ac9fd9b698 tests/qtest: Fix a comment typo in vhost-user-test.c
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230621101710.297975-4-mzamazal@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Richard Henderson
f9925abbda ppc queue:
* New maintainers
 * Nested implementation cleanups
 * Various cleanups of the CPU implementation
 * SMT support for pseries
 * Improvements of the XIVE2 TIMA modeling
 * Extra avocado tests for pseries
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Merge tag 'pull-ppc-20230626' of https://github.com/legoater/qemu into staging

ppc queue:

* New maintainers
* Nested implementation cleanups
* Various cleanups of the CPU implementation
* SMT support for pseries
* Improvements of the XIVE2 TIMA modeling
* Extra avocado tests for pseries

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* tag 'pull-ppc-20230626' of https://github.com/legoater/qemu: (30 commits)
  tests/avocado: ppc test VOF bios Linux boot
  pnv/xive2: Check TIMA special ops against a dedicated array for P10
  pnv/xive2: Add a get_config() method on the presenter class
  tests/avocado: Add ppc64 pseries multiprocessor boot tests
  tests/avocado: boot ppc64 pseries to Linux VFS mount
  spapr: TCG allow up to 8-thread SMT on POWER8 and newer CPUs
  hw/ppc/spapr: Test whether TCG is enabled with tcg_enabled()
  target/ppc: Add msgsnd/p and DPDES SMT support
  target/ppc: Add support for SMT CTRL register
  target/ppc: Add initial flags and helpers for SMT support
  target/ppc: Fix sc instruction handling of LEV field
  target/ppc: Better CTRL SPR implementation
  target/ppc: Add ISA v3.1 LEV indication in SRR1 for system call interrupts
  target/ppc: Implement HEIR SPR
  target/ppc: Add SRR1 prefix indication to interrupt handlers
  target/ppc: Change partition-scope translate interface
  target/ppc: Fix instruction loading endianness in alignment interrupt
  ppc/spapr: Move spapr nested HV to a new file
  ppc/spapr: load and store l2 state with helper functions
  ppc/spapr: Add a nested state struct
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-26 08:38:19 +02:00
Nicholas Piggin
5eb63b88d0 tests/avocado: ppc test VOF bios Linux boot
VOF is the new lightweight fast pseries bios. Add a Linux boot test
using VOF.

More tests could be moved to use VOF becasue it's much faster, but
just dip one toe in the water first here. SLOF should continue to be
tested too.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:31 +02:00
Frederic Barrat
177835304b pnv/xive2: Check TIMA special ops against a dedicated array for P10
Accessing the TIMA from some specific ring/offset combination can
trigger a special operation, with or without side effects. It is
implemented in qemu with an array of special operations to compare
accesses against. Since the presenter on P10 is pretty similar to P9,
we had the full array defined for P9 and we just had a special case
for P10 to treat one access differently. With a recent change,
6f2cbd133d ("pnv/xive2: Handle TIMA access through all ports"), we
now ignore some of the bits of the TIMA address, but that patch
managed to botch the detection of the special case for P10.

To clean that up, this patch introduces a full array of special ops to
be used for P10. The code to detect a special access is common with
P9, only the array of operations differs. The presenter can pick the
correct array of special ops based on its configuration introduced in
a previous patch.

Fixes: Coverity CID 1512997, 1512998
Fixes: 6f2cbd133d ("pnv/xive2: Handle TIMA access through all ports")
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Frederic Barrat
2a24e6e394 pnv/xive2: Add a get_config() method on the presenter class
The presenters for xive on P9 and P10 are mostly similar but the
behavior can be tuned through a few CQ registers. This patch adds a
"get_config" method, which will allow to access that config from the
presenter in a later patch.
For now, just define the config for the TIMA version.

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
242e8b4dca tests/avocado: Add ppc64 pseries multiprocessor boot tests
Add mult-thread/core/socket Linux boot tests that ensure the right
topology comes up. Of particular note is a SMT test, which is a new
capability for TCG.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
8f4c627b2f tests/avocado: boot ppc64 pseries to Linux VFS mount
This machine can boot Linux to VFS mount, so don't stop in early boot.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
dc5e072188 spapr: TCG allow up to 8-thread SMT on POWER8 and newer CPUs
PPC TCG supports SMT CPU configurations for non-hypervisor state, so
permit POWER8-10 pseries machines to enable SMT.

This requires PIR and TIR be set, because that's how sibling thread
matching is done by TCG.

spapr's nested-HV capability does not currently coexist with SMT, so
that combination is prohibited (interestingly somewhat analogous to
LPAR-per-core mode on real hardware which also does not support KVM).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: Also test smp_threads when checking for POWER8 CPU and above ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Philippe Mathieu-Daudé
516cd73733 hw/ppc/spapr: Test whether TCG is enabled with tcg_enabled()
Although the PPC target only supports the TCG and KVM
accelerators, QEMU supports more. We can not assume that
'!kvm == tcg', so test for the correct accelerator. This
also eases code review, because here we don't care about
KVM, we really want to test for TCG.

Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[np: Fix changelog typo noticed by Zoltan]
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
d24e80b2ae target/ppc: Add msgsnd/p and DPDES SMT support
Doorbells in SMT need to coordinate msgsnd/msgclr and DPDES access from
multiple threads that affect the same state.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
c5d98a7b3d target/ppc: Add support for SMT CTRL register
A relatively simple case to begin with, CTRL is a SMT shared register
where reads and writes need to synchronise against state changes by
other threads in the core.

Atomic serialisation operations are used to achieve this.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
b769d4c8f4 target/ppc: Add initial flags and helpers for SMT support
TGC SMT emulation needs to know whether it is running with SMT siblings,
to be able to iterate over siblings in a core, and to serialise
threads to access per-core shared SPRs. Add infrastructure to do these
things.

For now the sibling iteration and serialisation are implemented in a
simple but inefficient way. SMT shared state and sibling access is not
too common, and SMT configurations are mainly useful to test system
code, so performance is not to critical.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: fix build breakage with clang ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
984eda58f2 target/ppc: Fix sc instruction handling of LEV field
The top bits of the LEV field of the sc instruction are to be treated as
as a reserved field rather than a reserved value, meaning LEV is
effectively the bottom bit. LEV=0xF should be treated as LEV=1 and be
a hypercall, for example.

This changes the instruction execution to just set lev from the low bit
of the field. Processors which don't support the LEV field will continue
to ignore it.

ISA v3.1 defines LEV to be 2 bits, in order to add the 'sc 2' ultracall
instruction. TCG does not support Ultravisor, so don't worry about
that bit.

Suggested-by: "Harsh Prateek Bora" <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
488aad1166 target/ppc: Better CTRL SPR implementation
The CTRL register is able to write the bit in the RUN field, which gets
reflected into the TS field which is read-only and contains the state of
the RUN field for all threads in the core.

TCG does not implement SMT, so the correct implementation just requires
mirroring the RUN bit into the first bit of the TS field.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
eb701f3012 target/ppc: Add ISA v3.1 LEV indication in SRR1 for system call interrupts
System call interrupts in ISA v3.1 CPUs add a LEV indication in SRR1
that corresponds with the LEV field of the instruction that caused the
interrupt.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
a3c020d85e target/ppc: Implement HEIR SPR
The hypervisor emulation assistance interrupt modifies HEIR to
contain the value of the instruction which caused the exception.

Only TCG raises HEAI interrupts so this can be made TCG-only.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
5a5d3b23cb target/ppc: Add SRR1 prefix indication to interrupt handlers
ISA v3.1 introduced prefix instructions. Among the changes, various
synchronous interrupts report whether they were caused by a prefix
instruction in (H)SRR1.

The case of instruction fetch that causes an HDSI due to access of a
process-scoped table faulting on the partition scoped translation is the
tricky one. As with ISIs and HISIs, this does not try to set the prefix
bit because there is no instruction image to be loaded. The HDSI needs
the originating access type to be passed through to the handler to
distinguish this from HDSIs that fault translating process scoped tables
originating from a load or store instruction (in that case the prefix
bit should be provided).

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[ clg: checkpatch issues ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
74574c3845 target/ppc: Change partition-scope translate interface
Rather than always performing partition scope page table translation
with access type of 0 (MMU_DATA_LOAD), pass through the processor
access type which first initiated the translation sequence. Process-
scoped page table loads are then set to MMU_DATA_LOAD access type in
the xlate function.

This will allow more information to be passed to the exception
handler in the next patch.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
888050cf51 target/ppc: Fix instruction loading endianness in alignment interrupt
powerpc ifetch endianness depends on MSR[LE] so it has to byteswap
after cpu_ldl_code(). This corrects DSISR bits in alignment
interrupts when running in little endian mode.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
6b8a05373b ppc/spapr: Move spapr nested HV to a new file
Create spapr_nested.c for most of the nested HV implementation.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
cb4e61a33b ppc/spapr: load and store l2 state with helper functions
Arguably this is just shuffling around register accesses, but one nice
thing it does is allow the exit to save away the L2 state then switch
the environment to the L1 before copying L2 data back to the L1, which
logically flows more naturally and simplifies the error paths.

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
c709e8eacd ppc/spapr: Add a nested state struct
Rather than use a copy of CPUPPCState to store the host state while
the environment has been switched to the L2, use a new struct for
this purpose.

Have helper functions to save and load this host state.

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
cb2f6c3d69 ppc/spapr: H_ENTER_NESTED should restore host XER ca field
Fix missing env->ca restore when going from L2 back to the host.

Fixes: 120f738a46 ("spapr: implement nested-hv capability for the virtual hypervisor")
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
c4550e6e98 target/ppc: Fix timer register accessors when !KVM
When the Timer Control and Timer Status registers are modified, avoid
calling the KVM backend when not available

Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
518f72ec4b ppc/pnv: Rephrase error when run with KVM
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
74b2fd6307 ppc/bamboo: Report an error when run with KVM
The 'bamboo' machine was used as a KVM platform in the early days (~2008).
It clearly doesn't support it anymore.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
9df480db3b ppc/prep: Report an error when run with KVM
The 'prep' machine never supported KVM. This piece of code was
probably inherited from another model.

Cc: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
4901a34d26 MAINTAINERS: Add reviewer for XIVE
Fred discusses frequently with the IBM HW designers, he is fluent in
XIVE logic, add him as a reviewer.

Cc: Frédéric Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
58fc20f0e3 MAINTAINERS: Add reviewer for PowerPC TCG CPUs
Nick has great knowledge of the PowerPC CPUs, software and hardware.
Add him as a reviewer on CPU TCG modeling.

Cc: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Cédric Le Goater
602b88ec8a MAINTAINERS: Add reviewers for PowerNV baremetal emulation
Fred and Nick have been hacking baremetal POWER systems (OPAL) for
many years. They use and modify the QEMU models regularly. Add them as
PowerNV reviewers.

Cc: Frédéric Barrat <fbarrat@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Joel Stanley
b08e8a837e ppc/pnv/pci: Clean up error messages
The phb error macros add a newline for you, so remove the second one to
avoid double whitespace.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Nicholas Piggin
981562ed2b target/ppc: gdbstub init spr gdb_id for all CPUs
Make sure each CPU gets its state set up for gdb, not just the ones
before PowerPCCPUClass has had its gdb state set up.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-25 22:41:30 +02:00
Richard Henderson
79dbd910c9 target/hppa: Fix boot and reboot for SMP machines
Fix some SMP-related boot and reboot issues with HP-UX and Linux by
 correctly initializing the CPU PSW bits, disabling data and instruction
 translations and unhalting the CPU in the qemu hppa_machine_reset()
 function.
 
 To work correctly some fixes are needed in the SeaBIOS-hppa firmware too,
 which is why this series updates it to version 8 which includes those
 fixes and enhancements:
 
 Fixes
 - boot of HP-UX with SMP, and
 - reboot of Linux and HP-UX with SMP
 
 Enhancements:
 - show qemu version in boot menu
 - adds exit menu entry in boot menu to quit emulation
 - allow to trace PCD_CHASSIS codes more specifically
 
 Signed-off-by: Helge Deller <deller@gmx.de>
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Merge tag 'hppa-boot-reboot-fixes-pull-request' of https://github.com/hdeller/qemu-hppa into staging

target/hppa: Fix boot and reboot for SMP machines

Fix some SMP-related boot and reboot issues with HP-UX and Linux by
correctly initializing the CPU PSW bits, disabling data and instruction
translations and unhalting the CPU in the qemu hppa_machine_reset()
function.

To work correctly some fixes are needed in the SeaBIOS-hppa firmware too,
which is why this series updates it to version 8 which includes those
fixes and enhancements:

Fixes
- boot of HP-UX with SMP, and
- reboot of Linux and HP-UX with SMP

Enhancements:
- show qemu version in boot menu
- adds exit menu entry in boot menu to quit emulation
- allow to trace PCD_CHASSIS codes more specifically

Signed-off-by: Helge Deller <deller@gmx.de>

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# =8zCK
# -----END PGP SIGNATURE-----
# gpg: Signature made Sat 24 Jun 2023 01:49:44 PM CEST
# gpg:                using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg:                 aka "Helge Deller <deller@kernel.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: 4544 8228 2CD9 10DB EF3D  25F8 3E5F 3D04 A7A2 4603
#      Subkey fingerprint: BCE9 123E 1AD2 9F07 C049  BBDE F712 B510 A23A 0F5F

* tag 'hppa-boot-reboot-fixes-pull-request' of https://github.com/hdeller/qemu-hppa:
  target/hppa: Update to SeaBIOS-hppa version 8
  target/hppa: Provide qemu version via fw_cfg to firmware
  target/hppa: Fix OS reboot issues

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-25 08:58:49 +02:00
Richard Henderson
fa7dd27bc3 target-arm queue:
* Add (experimental) support for FEAT_RME
  * host-utils: Avoid using __builtin_subcll on buggy versions of Apple Clang
  * target/arm: Restructure has_vfp_d32 test
  * hw/arm/sbsa-ref: add ITS support in SBSA GIC
  * target/arm: Fix sve predicate store, 8 <= VQ <= 15
  * pc-bios/keymaps: Use the official xkb name for Arabic layout, not the legacy synonym
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Merge tag 'pull-target-arm-20230623' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Add (experimental) support for FEAT_RME
 * host-utils: Avoid using __builtin_subcll on buggy versions of Apple Clang
 * target/arm: Restructure has_vfp_d32 test
 * hw/arm/sbsa-ref: add ITS support in SBSA GIC
 * target/arm: Fix sve predicate store, 8 <= VQ <= 15
 * pc-bios/keymaps: Use the official xkb name for Arabic layout, not the legacy synonym

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# gpg: Signature made Fri 23 Jun 2023 02:30:31 PM CEST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]

* tag 'pull-target-arm-20230623' of https://git.linaro.org/people/pmaydell/qemu-arm: (26 commits)
  pc-bios/keymaps: Use the official xkb name for Arabic layout, not the legacy synonym
  target/arm: Fix sve predicate store, 8 <= VQ <= 15
  hw/arm/sbsa-ref: add ITS support in SBSA GIC
  target/arm: Restructure has_vfp_d32 test
  host-utils: Avoid using __builtin_subcll on buggy versions of Apple Clang
  docs/system/arm: Document FEAT_RME
  target/arm: Add cpu properties for enabling FEAT_RME
  target/arm: Implement the granule protection check
  target/arm: Implement GPC exceptions
  target/arm: Add GPC syndrome
  target/arm: Use get_phys_addr_with_struct for stage2
  target/arm: Move s1_is_el0 into S1Translate
  target/arm: Use get_phys_addr_with_struct in S1_ptw_translate
  target/arm: Handle no-execute for Realm and Root regimes
  target/arm: Handle Block and Page bits for security space
  target/arm: NSTable is RES0 for the RME EL3 regime
  target/arm: Pipe ARMSecuritySpace through ptw.c
  target/arm: Remove __attribute__((nonnull)) from ptw.c
  target/arm: Introduce ARMMMUIdx_Phys_{Realm,Root}
  target/arm: Adjust the order of Phys and Stage2 ARMMMUIdx
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-25 08:58:13 +02:00
Helge Deller
34ec3aea54 target/hppa: Update to SeaBIOS-hppa version 8
Update SeaBIOS-hppa to version 8.

Fixes:
- boot of HP-UX with SMP, and
- reboot of Linux and HP-UX with SMP

Enhancements:
- show qemu version in boot menu
- adds exit menu entry in boot menu to quit emulation
- allow to trace PCD_CHASSIS codes & machine run status

Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-24 13:39:48 +02:00