| Commit message (Collapse) | Author | Files | Lines |
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Some guests (win2008 server for example) do a lot of unnecessary
flushing when underlying media has not changed. This adds additional
overhead on host when calling fsync/fdatasync.
This change introduces a write generation scheme in BlockDriverState.
Current write generation is checked against last flushed generation to
avoid unnessesary flushes.
The problem with excessive flushing was found by a performance test
which does parallel directory tree creation (from 2 processes).
Results improved from 0.424 loops/sec to 0.432 loops/sec.
Each loop creates 10^3 directories with 10 files in each.
This affected some blkdebug testcases that were expecting error logs from
failure-injected flushes which are now skipped entirely
(tests 026 071 089).
This also affects the performance of block jobs and thus BLOCK_JOB_READY
events for driver-mirror and active block-commit commands now arrives
faster, before QMP send successfully returns to caller (tests 141 144).
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1468870792-7411-5-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
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Due to changes in flush behaviour clean disks stopped generating
flush_to_disk events and IDE and AHCI tests that test flush commands
started to fail.
This change adds additional DMA writes to affected tests before sending
flush commands so that bdrv_flush actually generates flush_to_disk event.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1468870792-7411-4-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
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The following sequence of tests discovered a problem in IDE emulation:
1. Send DMA write to IDE device 0
2. Send CMD_FLUSH_CACHE to same IDE device which will be failed by block
layer using blkdebug script in tests/ide-test:test_retry_flush
When doing DMA request ide/core.c will set s->retry_unit to s->unit in
ide_start_dma. When dma completes ide_set_inactive sets retry_unit to -1.
After that ide_flush_cache runs and fails thanks to blkdebug.
ide_flush_cb calls ide_handle_rw_error which asserts that s->retry_unit
== s->unit. But s->retry_unit is still -1 after previous DMA completion
and flush does not use anything related to retry.
This patch restricts retry unit assertion only to ops that actually use
retry logic.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1468870792-7411-3-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
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Code to set and clear state associated with retry in moved into
ide_set_retry and ide_clear_retry to make adding retry setups easier.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1468870792-7411-2-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Homogenizes the command capabilities with QMP.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Events with the 'vcpu' property are conditionally emitted according to
their per-vCPU state. Other events are emitted normally based on their
global tracing state.
Note that the per-vCPU condition check applies to all tracing backends.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Each vCPU gets a 'trace_dstate' bitmap to control the per-vCPU dynamic
tracing state of events with the 'vcpu' property.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Eliminates a future compilation error when UI code includes the tracing
headers (indirectly pulling "disas/bfd.h" through "qom/cpu.h") and
GLib's i18n '_' macro.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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A new event attribute 'cpu_id' is added to have a separate ID
space ('TRACE_VCPU_*') for all events with the 'vcpu' property.
These are later used to identify which events are enabled on each vCPU.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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[Changed const char *trace_file to char *trace_file since it's a
heap-allocated string that needs to be freed. This type is also
returned by trace_opt_parse() and used in vl.c.
Also fixed coding style on for(;;) and else statement as suggested by
Eric Blake <eblake@redhat.com> since the patch modifies these lines or
close enough.
--Stefan]
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 146860252322.30668.18276041739086338328.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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[Changed const char *trace_file to char *trace_file since it's a
heap-allocated string that needs to be freed. This type is also
returned by trace_opt_parse() and used in vl.c.
--Stefan]
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 146860251784.30668.17339867835129075077.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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QEMU supports ARI on downstream ports and assigned devices may support
ARI in their extended capabilities. The endpoint ARI capability
specifies the next function, such that the OS doesn't need to walk
each possible function, however this next function is relative to the
host, not the guest. This leads to device discovery issues when we
combine separate functions into virtual multi-function packages in a
guest. For example, SR-IOV VFs are not enumerated by simply probing
the function address space, therefore the ARI next-function field is
zero. When we combine multiple VFs together as a multi-function
device in the guest, the guest OS identifies ARI is enabled, relies on
this next-function field, and stops looking for additional function
after the first is found.
Long term we should expose the ARI capability to the guest to enable
configurations with more than 8 functions per slot, but this requires
additional QEMU PCI infrastructure to manage the next-function field
for multiple, otherwise independent devices. In the short term,
hiding this capability allows equivalent functionality to what we
currently have on non-express chipsets.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
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We want the travis build bot to post notifications on IRC only for the
master qemu repository and not the various forks/branches of
others. Currently there is no direct option to restrict the updates to
one repository. This is being worked upon by the developers and
tracked in https://github.com/travis-ci/travis-ci/issues/1094.
Until such time, we can use the workaround as posted in
ref. https://github.com/facebook/flow/pull/1822.
This basically creates an ecrypted string which decrypts to qemu IRC
channel only on "qemu/qemu" repo and not on the forks. This enables
the build bot to notify the IRC only for the main repo.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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This file is actually the header for async.c and aio-*.c., so add it to
the same section.
Suggested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1468826387-10473-1-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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No need duplicate the judgment, there is one in function entry.
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1468814749-14510-1-git-send-email-caoj.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Renames look like this with git-diff(1) when diff.renames = true is set:
diff --git a/a b/b
similarity index 100%
rename from a
rename to b
This raises the "Does not appear to be a unified-diff format patch"
error because checkpatch.pl only considers a diff valid if it contains
at least one "@@" hunk.
This patch accepts renames and copies too so that checkpatch.pl exits
successfully when a diff only renames/copies files. The git diff
extended header format is described on the git-diff(1) man page.
Reported-by: Colin Lord <clord@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1468576014-28788-1-git-send-email-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Parameter **errp of aio_context_setup() is useless, remove it
and clean up the related code.
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Fam Zheng <famz@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1468578524-23433-1-git-send-email-caoj.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Invoking io_setup(MAX_EVENTS) we ask kernel to create ring buffer for us
with specified number of events. But kernel ring buffer allocation logic
is a bit tricky (ring buffer is page size aligned + some percpu allocation
are required) so eventually more than requested events number is allocated.
From a userspace side we have to follow the convention and should not try
to io_submit() more or logic, which consumes completed events, should be
changed accordingly. The pitfall is in the following sequence:
MAX_EVENTS = 128
io_setup(MAX_EVENTS)
io_submit(MAX_EVENTS)
io_submit(MAX_EVENTS)
/* now 256 events are in-flight */
io_getevents(MAX_EVENTS) = 128
/* we can handle only 128 events at once, to be sure
* that nothing is pended the io_getevents(MAX_EVENTS)
* call must be invoked once more or hang will happen. */
To prevent the hang or reiteration of io_getevents() call this patch
restricts the number of in-flights, which is now limited to MAX_EVENTS.
Signed-off-by: Roman Pen <roman.penyaev@profitbricks.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1468415004-31755-1-git-send-email-roman.penyaev@profitbricks.com
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-devel@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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replace tab with spaces
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Message-id: 1468501843-14927-1-git-send-email-caoj.fnst@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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This has better performance because it executes fewer system calls
and does not use a bottom half per disk.
Originally proposed by Ming Lei.
[Changed #include "raw-aio.h" to "block/raw-aio.h" in win32-aio.c to fix
build error as reported by Peter Maydell <peter.maydell@linaro.org>.
--Stefan]
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1467650000-51385-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
squash! linux-aio: share one LinuxAioState within an AioContext
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We have only one flag for now - Empty Image flag. The patch fixes unused
bits specification and marks bit 1 as usused.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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e1000e needs net_tx_pkt.o and net_rx_pkt.o too.
Cc: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com>
Cc: Leonid Bloch <leonid.bloch@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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As requested by Scott, removing him.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Reported by Coverity.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Coverity reports a "suspicious sizeof" which is indeed wrong.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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This is not dereferencing the pointer, and instead checking only
the value of the pointer.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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This is not dereferencing the pointer, and instead checking only
the value of the pointer.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Commit 86b50f2e1bef ("Disable huge page support if it is not available
for main RAM") already made sure that huge page support is not announced
to the guest if the normal RAM of non-NUMA configurations is not backed
by a huge page filesystem. However, there is one more case that can go
wrong: NUMA is enabled, but the RAM of the NUMA nodes are not configured
with huge page support (and only the memory of a DIMM is configured with
it). When QEMU is started with the following command line for example,
the Linux guest currently crashes because it is trying to use huge pages
on a memory region that does not support huge pages:
qemu-system-ppc64 -enable-kvm ... -m 1G,slots=4,maxmem=32G -object \
memory-backend-file,policy=default,mem-path=/hugepages,size=1G,id=mem-mem1 \
-device pc-dimm,id=dimm-mem1,memdev=mem-mem1 -smp 2 \
-numa node,nodeid=0 -numa node,nodeid=1
To fix this issue, we've got to make sure to disable huge page support,
too, when there is a NUMA node that is not using a memory backend with
huge page support.
Fixes: 86b50f2e1befc33407bdfeb6f45f7b0d2439a740
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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ps->pte_enc is a 32-bit value, which is shifted left and then compared
to a 64-bit value. It needs a cast before the shift.
Reported by Coverity.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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No need to include error-report.h twice here.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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It is not possible to set the compat property to an unknown value with
powerpc_set_compat(). Something must have gone terribly wrong in QEMU,
if we detect an "Internal error" in powerpc_get_compat(). Let's abort then.
This patch also drops the "max_compat ? *max_compat : -1" construct. It is
useless since max_compat is dereferenced a few lines above.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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If CPU core addition or removal is allowed in random order leading to
holes in the core id range (and hence in the cpu_index range), migration
can fail as migration with holes in cpu_index range isn't yet handled
correctly.
Prevent this situation by enforcing the addition in contiguous order
and removal in LIFO order so that we never end up with holes in
cpu_index range.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This ioctl() call to VFIO_IOMMU_SPAPR_TCE_REMOVE was left over from an
earlier version of the code and has since been folded into
vfio_spapr_remove_window().
It wasn't caught because although the argument structure has been removed,
the libc function remove() means this didn't trigger a compile failure.
The ioctl() was also almost certain to fail silently and harmlessly with
the bogus argument, so this wasn't caught in testing.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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MacOS uses an architecturally illegal MSR combination that
seems nonetheless supported by 32-bit processors, which is
to have MSR[PR]=1 and one or more of MSR[DR/IR/EE]=0.
This adds support for it. To work properly we need to also
properly include support for PR=1,{I,D}R=0 to the MMU index
used by the qemu TLB.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Otherwise MacOS 9 hangs upon shutdown.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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channels
This fixes MacOS 9 whereby it continually flushes and polls the status bits
until they are set to indicate a successful flush.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The values to read/write to/from physical memory are copied directly to the
physical address with no endian swapping required.
Also add some extra information to debugging output while we are here.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The current DBDMA command is stored in little-endian format, so make sure
we convert it to match our CPU when updating the DBDMA_CMDPTR_LO register.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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By default large amounts of DBDMA debugging are produced when often it is just
1 or 2 channels that are of interest. Introduce DEBUG_DBDMA_CHANMASK to allow
the developer to select the channels of interest at compile time, and then
further add the extra channel information to each debug statement where
possible.
Also clearly mark the start/end of DBDMA_run_bh to allow tracking the bottom
half execution.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Enabling DBDMA_DPRINTF unconditionally ensures that any errors in debug
statements are picked up immediately.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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If the host has 8 threads/core and the guest is started with:
-smp cores=1,threads=4,maxcpus=12
It is possible to crash QEMU by doing:
(qemu) device_add host-spapr-cpu-core,core-id=16,id=foo
(qemu) device_del foo
Segmentation fault
This happens because spapr_core_unplug() assumes cpu_dt_id == core_id.
As long as cpu_dt_id is derived from the non-table cpu_index, this is
only true when you plug cores with contiguous ids.
It is safer to be consistent: the DR connector was created with an
index that is immediately written to cc->core_id, and spapr_core_plug()
also relies on cc->core_id.
Let's use it also in spapr_core_unplug().
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
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commit 095497ff added thread local storage for the color counting
palette. Unfortunately, a VncPalette is about 7kB on a x86_64 system.
This memory is reserved from the stack of every thread and it
exhausted the stack space of a libxenstore thread.
Fix this by allocating memory only for the VNC encoding thread.
Fixes: 095497ffc66b7f031ff2a17f1e50f5cb105ce588
Reported-by: Juergen Gross <jgross@suse.com>
Tested-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1468575911-20656-1-git-send-email-pl@kamp.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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In tight_encode_indexed_rect32, buf(or src)’s size is count. In for loop,
the logic is supposed to be that i is an index into src, i should be
incremented when incrementing src.
This is broken when src is incremented but i is not before while loop,
resulting in off-by-one bug in while loop.
Signed-off-by: He Rongguang <herongguang.he@huawei.com>
Message-id: 5784B8EB.7010008@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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It may happen that vnc connections linger in disconnecting state forever
because VncState happens to be in a state where vnc_update_client()
exists early and never reaches the vnc_disconnect_finish() call at the
bottom of the function. Fix that by doing an additinal check at the
start of the function.
https://bugzilla.redhat.com/show_bug.cgi?id=1352799
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1468405280-2571-1-git-send-email-kraxel@redhat.com
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AST2400_A0_SILICON_REV is defined twice. Fix this by including the
definition in the header file as well as the routine to check if a
silicon revision is supported. It will useful to reuse in other
controllers.
Let's add also AST2500_A0_SILICON_REV for future use.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-5-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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U-boot does SPI timing calibration using DMA tranfers. To let the
initialization continue, we fake success by setting the DMA status of
the Interrupt Control Register.
For the moment, DMA support is not required as it is not used in
normal operation.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-4-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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aspeed_smc_is_implemented() filters invalid registers in a peculiar
way. Let's remove it and open code the if conditions. It serves the
same purpose, the aesthetic is better, and new registers can easily be
added.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-3-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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