Commit Graph

72423 Commits

Author SHA1 Message Date
Vladimir Sementsov-Ogievskiy
88f468e546 block/qcow2: refactor qcow2_co_preadv_part
Further patch will run partial requests of iterations of
qcow2_co_preadv in parallel for performance reasons. To prepare for
this, separate part which may be parallelized into separate function
(qcow2_co_preadv_task).

While being here, also separate encrypted clusters reading to own
function, like it is done for compressed reading.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190916175324.18478-4-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Vladimir Sementsov-Ogievskiy
6e9b225f73 block: introduce aio task pool
Common interface for aio task loops. To be used for improving
performance of synchronous io loops in qcow2, block-stream,
copy-on-read, and may be other places.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190916175324.18478-3-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Vladimir Sementsov-Ogievskiy
ee1e66d957 qemu-iotests: ignore leaks on failure paths in 026
Upcoming asynchronous handling of sub-parts of qcow2 requests will
change number of leaked clusters and even make it racy. As a
preparation, ignore leaks on failure parts in 026.

It's not trivial to just grep or substitute qemu-img output for such
thing. Instead do better: 3 is a error code of qemu-img check, if only
leaks are found. Catch this case and print success output.

Suggested-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190916175324.18478-2-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Richard Henderson
1cccdef3e3 target/s390x: Remove ILEN_UNWIND
This setting is no longer used.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-19-richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:02 +02:00
Richard Henderson
5c58704b07 target/s390x: Remove ilen argument from trigger_pgm_exception
All but one caller passes ILEN_UNWIND, which is not stored.
For the one use case in s390_cpu_tlb_fill, set int_pgm_ilen
directly, simply to avoid the assert within do_program_interrupt.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-18-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:02 +02:00
Richard Henderson
f5cbdc4397 target/s390x: Remove ilen argument from trigger_access_exception
The single caller passes ILEN_UNWIND; pass that along to
trigger_pgm_exception directly.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-17-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:02 +02:00
Richard Henderson
20e1372b7c target/s390x: Remove ILEN_AUTO
This setting is no longer used.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-16-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:02 +02:00
Richard Henderson
2550953b20 target/s390x: Rely on unwinding in s390_cpu_virt_mem_rw
For TCG, we will always call s390_cpu_virt_mem_handle_exc,
which will go through the unwinder to set ILEN.  For KVM,
we do not go through do_program_interrupt, so this argument
is unused.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-15-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:02 +02:00
Richard Henderson
9e1dae315f target/s390x: Rely on unwinding in s390_cpu_tlb_fill
We currently set ilen to AUTO, then overwrite that during
unwinding, then overwrite that for the code access case.

This can be simplified to setting ilen to our arbitrary
value for the (undefined) code access case, then rely on
unwinding to overwrite that with the correct value for
the data access case.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-14-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
9accc852d8 target/s390x: Simplify helper_lra
We currently call trigger_pgm_exception to set cs->exception_index
and env->int_pgm_code and then read the values back and then
reset cs->exception_index so that the exception is not delivered.

Instead, use the exception type that we already have directly
without ever triggering an exception that must be suppressed.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-13-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
42007b1982 target/s390x: Remove fail variable from s390_cpu_tlb_fill
Now that excp always contains a real exception number, we can
use that instead of a separate fail variable.  This allows a
redundant test to be removed.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-12-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
a79d225335 target/s390x: Return exception from translate_pages
Do not raise the exception directly within translate_pages,
but pass it back so that caller may do so.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-11-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
ce7ac79d28 target/s390x: Return exception from mmu_translate
Do not raise the exception directly within mmu_translate,
but pass it back so that caller may do so.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-10-richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
c7363b28ff target/s390x: Remove exc argument to mmu_translate_asce
Now that mmu_translate_asce returns the exception instead of
raising it, the argument is unused.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-9-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
31b5941906 target/s390x: Return exception from mmu_translate_real
Do not raise the exception directly within mmu_translate_real,
but pass it back so that caller may do so.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-8-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
1ab3302886 target/s390x: Handle tec in s390_cpu_tlb_fill
As a step toward moving all excption handling out of mmu_translate,
copy handling of the LowCore tec value from trigger_access_exception
into s390_cpu_tlb_fill.  So far this new plumbing isn't used.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-7-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
18ab936d00 target/s390x: Push trigger_pgm_exception lower in s390_cpu_tlb_fill
Delay triggering an exception until the end, after we have
determined ultimate success or failure, and also taken into
account whether this is a non-faulting probe.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-6-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
1e36aee636 target/s390x: Use tcg_s390_program_interrupt in TCG helpers
Replace all uses of s390_program_interrupt within files
that are marked CONFIG_TCG.  These are necessarily tcg-only.

This lets each of these users benefit from the QEMU_NORETURN
attribute on tcg_s390_program_interrupt.

Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-5-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
77b703f84f target/s390x: Remove ilen parameter from s390_program_interrupt
This is no longer used, and many of the existing uses -- particularly
within hw/s390x -- seem questionable.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-4-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
3e20185892 target/s390x: Remove ilen parameter from tcg_s390_program_interrupt
Since we begin the operation with an unwind, we have the proper
value of ilen immediately available.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191001171614.8405-3-richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
Richard Henderson
c87ff4d108 target/s390x: Add ilen to unwind data
Use ILEN_UNWIND to signal that we have in fact that cpu_restore_state
will have been called by the time we arrive in do_program_interrupt.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20191001171614.8405-2-richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
b580b6ee05 s390x/cpumodel: Add new TCG features to QEMU cpu model
We now implement a bunch of new facilities we can properly indicate.

ESOP-1/ESOP-2 handling is discussed in the PoP Chafter 3-15
("Suppression on Protection"). The "Basic suppression-on-protection (SOP)
facility" is a core part of z/Architecture without a facility
indication. ESOP-2 is indicated by ESOP-1 + Side-effect facility
("ESOP-2"). Besides ESOP-2, the side-effect facility is only relevant for
the guarded-storage facility (we don't implement).

S390_ESOP:
- We indicate DAT exeptions by setting bit 61 of the TEID (TEC) to 1 and
  bit 60 to zero. We don't trigger ALCP exceptions yet. Also, we set
  bit 0-51 and bit 62/63 to the right values.
S390_ACCESS_EXCEPTION_FS_INDICATION:
- The TEID (TEC) properly indicates in bit 52/53 on any access if it was
  a fetch or a store
S390_SIDE_EFFECT_ACCESS_ESOP2:
- We have no side-effect accesses (esp., we don't implement the
  guarded-storage faciliy), we correctly set bit 64 of the TEID (TEC) to
  0 (no side-effect).
- ESOP2: We properly set bit 56, 60, 61 in the TEID (TEC) to indicate the
  type of protection. We don't trigger KCP/ALCP exceptions yet.
S390_INSTRUCTION_EXEC_PROT:
- The MMU properly detects and indicates the exception on instruction fetches
- Protected TLB entries will never get PAGE_EXEC set.

There is no need to fake the abscence of any of the facilities - without
the facilities, some bits of the TEID (TEC) are simply unpredictable.

As IEP was added with z14 and we currently implement a z13, add it to
the MAX model instead.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
faa40177bb s390x/cpumodel: Prepare for changes of QEMU model
Setup the 4.1 compatibility model so we can add new features to the
LATEST model.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
3a06f98192 s390x/mmu: Implement Instruction-Execution-Protection Facility
IEP support in the mmu is fairly easy. Set the right permissions for TLB
entries and properly report an exception.

Make sure to handle EDAT-2 by setting bit 56/60/61 of the TEID (TEC) to
the right values.

Let's keep s390_cpu_get_phys_page_debug() working even if IEP is
active. Switch MMU_DATA_LOAD - this has no other effects any more as the
ASC to be used is now fully selected outside of mmu_translate().

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
3dc29061f3 s390x/mmu: Implement ESOP-2 and access-exception-fetch/store-indication facility
We already implement ESOP-1. For ESOP-2, we only have to indicate all
protection exceptions properly. Due to EDAT-1, we already indicate DAT
exceptions properly. We don't trigger KCP/ALCP/IEP exceptions yet.

So all we have to do is set the TEID (TEC) to the right values
(bit 56, 60, 61) in case of LAP.

We don't have any side-effects (e.g., no guarded-storage facility),
therefore, bit 64 of the TEID (TEC) is always 0.

We always have to indicate whether it is a fetch or a store for all access
exceptions. This is only missing for LAP exceptions.

Acked-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
90790898a1 s390x/mmu: Add EDAT2 translation support
This only adds basic support to the DAT translation, but no EDAT2 support
for TCG. E.g., the gdbstub under kvm uses this function, too, to
translate virtual addresses.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
a4e95b41a1 s390x/mmu: Convert to non-recursive page table walk
A non-recursive implementation allows to make better use of the
branch predictor, avoids function calls, and makes the implementation of
new features only for a subset of region table levels easier.

We can now directly compare our implementation to the KVM gaccess
implementation in arch/s390/kvm/gaccess.c:guest_translate().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:49:01 +02:00
David Hildenbrand
3fd0e85f3f s390x/mmu: DAT table definition overhaul
Let's use consistent names for the region/section/page table entries and
for the macros to extract relevant parts from virtual address. Make them
match the definitions in the PoP - e.g., how the relevant bits are actually
called.

Introduce defines for all bits declared in the PoP. This will come in
handy in follow-up patches.

Add a note where additional information about s390x and the used
definitions can be found.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:48:46 +02:00
David Hildenbrand
ae6d48d43f s390x/mmu: Use TARGET_PAGE_MASK in mmu_translate_pte()
While ASCE_ORIGIN is not wrong, it is certainly confusing. We want a
page frame address.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:33:47 +02:00
David Hildenbrand
2ed0cd7cd7 s390x/mmu: Inject PGM_ADDRESSING on bogus table addresses
Let's document how it works and inject PGM_ADDRESSING if reading of
table entries fails.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:33:47 +02:00
David Hildenbrand
81d7e3bc45 s390x/mmu: Inject DAT exceptions from a single place
Let's return the PGM from the translation functions on error and inject
based on that.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:33:47 +02:00
David Hildenbrand
124ada6810 s390x/mmu: Move DAT protection handling out of mmu_translate_asce()
We'll reuse the ilen and tec definitions in mmu_translate
soon also for all other DAT exceptions we inject. Move it to the caller,
where we can later pair it up with other protection checks, like IEP.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:33:47 +02:00
David Hildenbrand
a780d096e6 s390x/mmu: Drop debug logging from MMU code
Let's get it out of the way to make some further refactorings easier.
Personally, I've never used these debug statements at all. And if I had
to debug issues, I used plain GDB instead (debug prints are just way too
much noise in the MMU). We might want to introduce tracing at some point
instead, so we can able selected events on demand.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-10-09 12:33:47 +02:00
Peter Maydell
98b2e3c9ab Pull request
This pull request also contains the two commits from the previous pull request
 that was dropped due to a mingw compilation error.  The compilation should now
 be fixed.
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

This pull request also contains the two commits from the previous pull request
that was dropped due to a mingw compilation error.  The compilation should now
be fixed.

# gpg: Signature made Tue 08 Oct 2019 15:54:26 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  iotests/262: Switch source/dest VM launch order
  block: Skip COR for inactive nodes
  virtio-blk: schedule virtio_notify_config to run on main context
  util/ioc.c: try to reassure Coverity about qemu_iovec_init_extended

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-08 16:08:35 +01:00
Max Reitz
4d804b5305 iotests/262: Switch source/dest VM launch order
Launching the destination VM before the source VM gives us a regression
test for HEAD^:

The guest device causes a read from the disk image through
guess_disk_lchs().  This will not work if the first sector (containing
the partition table) is yet unallocated, we use COR, and the node is
inactive.

By launching the source VM before the destination, however, the COR
filter on the source will allocate that area in the image shared between
both VMs, thus the problem will not become apparent.

Switching the launch order causes the sector to still be unallocated
when guess_disk_lchs() runs on the inactive node in the destination VM,
and thus we get our test case.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20191001174827.11081-3-mreitz@redhat.com
Message-Id: <20191001174827.11081-3-mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-10-08 14:28:25 +01:00
Max Reitz
8644476e51 block: Skip COR for inactive nodes
We must not write data to inactive nodes, and a COR is certainly
something we can simply not do without upsetting anyone.  So skip COR
operations on inactive nodes.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20191001174827.11081-2-mreitz@redhat.com
Message-Id: <20191001174827.11081-2-mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-10-08 14:28:25 +01:00
Sergio Lopez
9b92fbcf45 virtio-blk: schedule virtio_notify_config to run on main context
virtio_notify_config() needs to acquire the global mutex, which isn't
allowed from an iothread, and may lead to a deadlock like this:

 - main thead
  * Has acquired: qemu_global_mutex.
  * Is trying the acquire: iothread AioContext lock via
    AIO_WAIT_WHILE (after aio_poll).

 - iothread
  * Has acquired: AioContext lock.
  * Is trying to acquire: qemu_global_mutex (via
    virtio_notify_config->prepare_mmio_access).

If virtio_blk_resize() is called from an iothread, schedule
virtio_notify_config() to be run in the main context BH.

[Removed unnecessary newline as suggested by Kevin Wolf
<kwolf@redhat.com>.
--Stefan]

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 20190916112411.21636-1-slp@redhat.com
Message-Id: <20190916112411.21636-1-slp@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-10-08 14:28:25 +01:00
Vladimir Sementsov-Ogievskiy
d38d6de2a1 util/ioc.c: try to reassure Coverity about qemu_iovec_init_extended
Make it more obvious, that filling qiov corresponds to qiov allocation,
which in turn corresponds to total_niov calculation, based on mid_niov
(not mid_len). Still add an assertion to show that there should be no
difference.

[Added mingw "error: 'mid_iov' may be used uninitialized in this
function" compiler error fix suggested by Vladimir.
--Stefan]

Reported-by: Coverity (CID 1405302)
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190910090310.14032-1-vsementsov@virtuozzo.com
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20190910090310.14032-1-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

fixup! util/ioc.c: try to reassure Coverity about qemu_iovec_init_extended
2019-10-08 14:27:35 +01:00
Peter Maydell
14d40ab1d5 Improve scripts relying on the EDK2 submodule,
drop Python2 dependency in EDK2 build scripts.
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/philmd-gitlab/tags/edk2-next-20191007' into staging

Improve scripts relying on the EDK2 submodule,
drop Python2 dependency in EDK2 build scripts.

# gpg: Signature made Mon 07 Oct 2019 14:31:38 BST
# gpg:                using RSA key 89C1E78F601EE86C867495CBA2A3FD6EDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (Phil) <philmd@redhat.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: 89C1 E78F 601E E86C 8674  95CB A2A3 FD6E DEAD C0DE

* remotes/philmd-gitlab/tags/edk2-next-20191007:
  edk2 build scripts: work around TianoCore#1607 without forcing Python 2
  edk2 build scripts: honor external BaseTools flags with uefi-test-tools
  roms: Add a 'make help' target alias
  roms/Makefile.edk2: don't pull in submodules when building from tarball
  make-release: pull in edk2 submodules so we can build it from tarballs

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-08 12:30:13 +01:00
Peter Maydell
ce701584c5 slirp: Allow non-local DNS address when restrict is off
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 =B6XI
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into staging

slirp: Allow non-local DNS address when restrict is off

# gpg: Signature made Mon 07 Oct 2019 00:54:44 BST
# gpg:                using RSA key 5ED9E856F7D6C6EAF51167A18D35C355720BBAFD
# gpg: Good signature from "Samuel Thibault <samuel.thibault@aquilenet.fr>" [unknown]
# gpg:                 aka "Samuel Thibault <sthibault@debian.org>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@gnu.org>" [unknown]
# gpg:                 aka "Samuel Thibault <samuel.thibault@inria.fr>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@labri.fr>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@ens-lyon.org>" [marginal]
# gpg:                 aka "Samuel Thibault <samuel.thibault@u-bordeaux.fr>" [unknown]
# 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: 900C B024 B679 31D4 0F82  304B D017 8C76 7D06 9EE6
#      Subkey fingerprint: 5ED9 E856 F7D6 C6EA F511  67A1 8D35 C355 720B BAFD

* remotes/thibault/tags/samuel-thibault:
  slirp: Allow non-local DNS address when restrict is off

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-08 11:00:19 +01:00
Peter Maydell
560009f2c8 Block layer patches:
- Fix internal snapshots with typical -blockdev setups
 - iotests: Require Python 3.6 or later
 -----BEGIN PGP SIGNATURE-----
 
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 =miip
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Fix internal snapshots with typical -blockdev setups
- iotests: Require Python 3.6 or later

# gpg: Signature made Fri 04 Oct 2019 10:59:21 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  iotests: Remove Python 2 compatibility code
  iotests: Require Python 3.6 or later
  iotests: Test internal snapshots with -blockdev
  block/snapshot: Restrict set of snapshot nodes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-07 15:40:53 +01:00
Laszlo Ersek
037973bb0d edk2 build scripts: work around TianoCore#1607 without forcing Python 2
It turns out that forcing python2 for running the edk2 "build" utility is
neither necessary nor sufficient.

Forcing python2 is not sufficient for two reasons:

- QEMU is moving away from python2, with python2 nearing EOL,

- according to my most recent testing, the lacking dependency information
  in the makefiles that are generated by edk2's "build" utility can cause
  parallel build failures even when "build" is executed by python2.

And forcing python2 is not necessary because we can still return to the
original idea of filtering out jobserver-related options from MAKEFLAGS.
So do that.

While at it, cut short edk2's auto-detection of the python3.* minor
version, by setting PYTHON_COMMAND to "python3" (which we expect to be
available wherever we intend to build edk2).

With this patch, the guest UEFI binaries that are used as part of the BIOS
tables test, and the OVMF and ArmVirtQemu platform firmwares, will be
built strictly in a single job, regardless of an outermost "-jN" make
option. Alas, there appears to be no reliable way to build edk2 in an
(outer make, inner make) environment, with a jobserver enabled.

Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Reported-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190920083808.21399-3-lersek@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-07 15:14:15 +02:00
Laszlo Ersek
53fde085ed edk2 build scripts: honor external BaseTools flags with uefi-test-tools
Unify the recipe for "build-edk2-tools" in
"tests/uefi-test-tools/Makefile" with the recipe for "edk2-basetools" in
"roms/Makefile".

Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190920083808.21399-2-lersek@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-07 15:13:50 +02:00
Philippe Mathieu-Daudé
6f8a70f62f roms: Add a 'make help' target alias
Various C projects provide a 'make help' target. Our root directory
does so. The roms/ directory lacks a such rule, but already displays
a help output when the default target is called.
Add a 'help' target aliased to the default one, to avoid:

  $ make -C roms help
  make: *** No rule to make target 'help'.  Stop.

Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190920171159.18633-1-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-07 14:56:22 +02:00
Michael Roth
f3e330e3c3 roms/Makefile.edk2: don't pull in submodules when building from tarball
Currently the `make efi` target pulls submodules nested under the
roms/edk2 submodule as dependencies. However, when we attempt to build
from a tarball this fails since we are no longer in a git tree.

A preceding patch will pre-populate these submodules in the tarball,
so assume this build dependency is only needed when building from a
git tree.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Bruce Rogers <brogers@suse.com>
Cc: qemu-stable@nongnu.org # v4.1.0
Reported-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Message-Id: <20190912231202.12327-3-mdroth@linux.vnet.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-07 14:54:48 +02:00
Michael Roth
45c61c6c23 make-release: pull in edk2 submodules so we can build it from tarballs
The `make efi` target added by 536d2173 is built from the roms/edk2
submodule, which in turn relies on additional submodules nested under
roms/edk2.

The make-release script currently only pulls in top-level submodules,
so these nested submodules are missing in the resulting tarball.

We could try to address this situation more generally by recursively
pulling in all submodules, but this doesn't necessarily ensure the
end-result will build properly (this case also required other changes).

Additionally, due to the nature of submodules, we may not always have
control over how these sorts of things are dealt with, so for now we
continue to handle it on a case-by-case in the make-release script.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Bruce Rogers <brogers@suse.com>
Cc: qemu-stable@nongnu.org # v4.1.0
Reported-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Message-Id: <20190912231202.12327-2-mdroth@linux.vnet.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-07 14:54:45 +02:00
Peter Maydell
0f0b43868a ppc patch queue 2019-10-04
Here's the next batch of ppc and spapr patches.  Includes:
   * Fist part of a large cleanup to irq infrastructure
   * Recreate the full FDT at CAS time, instead of making a difficult
     to follow set of updates.  This will help us move towards
     eliminating CAS reboots altogether
   * No longer provide RTAS blob to SLOF - SLOF can include it just as
     well itself, since guests will generally need to relocate it with
     a call to instantiate-rtas
   * A number of DFP fixes and cleanups from Mark Cave-Ayland
   * Assorted bugfixes
   * Several new small devices for powernv
 -----BEGIN PGP SIGNATURE-----
 
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 =PXXe
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.2-20191004' into staging

ppc patch queue 2019-10-04

Here's the next batch of ppc and spapr patches.  Includes:
  * Fist part of a large cleanup to irq infrastructure
  * Recreate the full FDT at CAS time, instead of making a difficult
    to follow set of updates.  This will help us move towards
    eliminating CAS reboots altogether
  * No longer provide RTAS blob to SLOF - SLOF can include it just as
    well itself, since guests will generally need to relocate it with
    a call to instantiate-rtas
  * A number of DFP fixes and cleanups from Mark Cave-Ayland
  * Assorted bugfixes
  * Several new small devices for powernv

# gpg: Signature made Fri 04 Oct 2019 10:35:57 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-4.2-20191004: (53 commits)
  ppc/pnv: Remove the XICSFabric Interface from the POWER9 machine
  spapr: Eliminate SpaprIrq::init hook
  spapr: Add return value to spapr_irq_check()
  spapr: Use less cryptic representation of which irq backends are supported
  xive: Improve irq claim/free path
  spapr, xics, xive: Better use of assert()s on irq claim/free paths
  spapr: Handle freeing of multiple irqs in frontend only
  spapr: Remove unhelpful tracepoints from spapr_irq_free_xics()
  spapr: Eliminate SpaprIrq:get_nodename method
  spapr: Simplify spapr_qirq() handling
  spapr: Fix indexing of XICS irqs
  spapr: Eliminate nr_irqs parameter to SpaprIrq::init
  spapr: Clarify and fix handling of nr_irqs
  spapr: Replace spapr_vio_qirq() helper with spapr_vio_irq_pulse() helper
  spapr: Fold spapr_phb_lsi_qirq() into its single caller
  xics: Create sPAPR specific ICS subtype
  xics: Merge TYPE_ICS_BASE and TYPE_ICS_SIMPLE classes
  xics: Eliminate reset hook
  xics: Rename misleading ics_simple_*() functions
  xics: Eliminate 'reject', 'resend' and 'eoi' class hooks
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-07 13:49:02 +01:00
Peter Maydell
9e5319ca52 * Compilation fix for KVM (Alex)
* SMM fix (Dmitry)
 * VFIO error reporting (Eric)
 * win32 fixes and workarounds (Marc-André)
 * qemu-pr-helper crash bugfix (Maxim)
 * Memory leak fixes (myself)
 * VMX features (myself)
 * Record-replay deadlock (Pavel)
 * i386 CPUID bits (Sebastian)
 * kconfig tweak (Thomas)
 * Valgrind fix (Thomas)
 * Autoconverge test (Yury)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJdl3oMAAoJEL/70l94x66DPPAH/0ibsi1Mg8px8lyMHsZT6uIH
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 UXguw/+BndKlCRqSsuJA926HPtg1vuIODT7fkynCY5YCLFR26UrBvPhYFA9X8oKd
 VIRKwcH44rBjmlogcDG94ZasAjPFkujWEcsCIqmf9aH9GqNA+2YdIFyOGQ+WltV5
 eNh3ppQAwqHN5wBfRW68E58mdZznQjzOiiJuui24JuopsazpJXs+KuPUv4e63rU=
 =9iVL
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Compilation fix for KVM (Alex)
* SMM fix (Dmitry)
* VFIO error reporting (Eric)
* win32 fixes and workarounds (Marc-André)
* qemu-pr-helper crash bugfix (Maxim)
* Memory leak fixes (myself)
* VMX features (myself)
* Record-replay deadlock (Pavel)
* i386 CPUID bits (Sebastian)
* kconfig tweak (Thomas)
* Valgrind fix (Thomas)
* Autoconverge test (Yury)

# gpg: Signature made Fri 04 Oct 2019 17:57:48 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (29 commits)
  target/i386/kvm: Silence warning from Valgrind about uninitialized bytes
  target/i386: work around KVM_GET_MSRS bug for secondary execution controls
  target/i386: add VMX features
  vmxcap: correct the name of the variables
  target/i386: add VMX definitions
  target/i386: expand feature words to 64 bits
  target/i386: introduce generic feature dependency mechanism
  target/i386: handle filtered_features in a new function mark_unavailable_features
  tests/docker: only enable ubsan for test-clang
  win32: work around main-loop busy loop on socket/fd event
  tests: skip serial test on windows
  util: WSAEWOULDBLOCK on connect should map to EINPROGRESS
  Fix wrong behavior of cpu_memory_rw_debug() function in SMM
  memory: allow memory_region_register_iommu_notifier() to fail
  vfio: Turn the container error into an Error handle
  i386: Add CPUID bit for CLZERO and XSAVEERPTR
  docker: test-debug: disable LeakSanitizer
  lm32: do not leak memory on object_new/object_unref
  cris: do not leak struct cris_disasm_data
  mips: fix memory leaks in board initialization
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-04 18:32:34 +01:00
Thomas Huth
a1834d975f target/i386/kvm: Silence warning from Valgrind about uninitialized bytes
When I run QEMU with KVM under Valgrind, I currently get this warning:

 Syscall param ioctl(generic) points to uninitialised byte(s)
    at 0x95BA45B: ioctl (in /usr/lib64/libc-2.28.so)
    by 0x429DC3: kvm_ioctl (kvm-all.c:2365)
    by 0x51B249: kvm_arch_get_supported_msr_feature (kvm.c:469)
    by 0x4C2A49: x86_cpu_get_supported_feature_word (cpu.c:3765)
    by 0x4C4116: x86_cpu_expand_features (cpu.c:5065)
    by 0x4C7F8D: x86_cpu_realizefn (cpu.c:5242)
    by 0x5961F3: device_set_realized (qdev.c:835)
    by 0x7038F6: property_set_bool (object.c:2080)
    by 0x707EFE: object_property_set_qobject (qom-qobject.c:26)
    by 0x705814: object_property_set_bool (object.c:1338)
    by 0x498435: pc_new_cpu (pc.c:1549)
    by 0x49C67D: pc_cpus_init (pc.c:1681)
  Address 0x1ffeffee74 is on thread 1's stack
  in frame #2, created by kvm_arch_get_supported_msr_feature (kvm.c:445)

It's harmless, but a little bit annoying, so silence it by properly
initializing the whole structure with zeroes.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-04 18:49:20 +02:00
Paolo Bonzini
048c95163b target/i386: work around KVM_GET_MSRS bug for secondary execution controls
Some secondary controls are automatically enabled/disabled based on the CPUID
values that are set for the guest.  However, they are still available at a
global level and therefore should be present when KVM_GET_MSRS is sent to
/dev/kvm.

Unfortunately KVM forgot to include those, so fix that.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-04 18:49:20 +02:00