Alberto Garcia [Mon, 5 Feb 2018 14:33:26 +0000 (16:33 +0200)]
qcow2: Prepare qcow2_update_snapshot_refcount() for adding L2 slice support
Adding support for L2 slices to qcow2_update_snapshot_refcount() needs
(among other things) an extra loop that iterates over all slices of
each L2 table.
Putting all changes in one patch would make it hard to read because
all semantic changes would be mixed with pure indentation changes.
To make things easier this patch simply creates a new block and
changes the indentation of all lines of code inside it. Thus, all
modifications in this patch are cosmetic. There are no semantic
changes and no variables are renamed yet. The next patch will take
care of that.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 8ffaa5e55bd51121f80e498f4045b64902a94293.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:25 +0000 (16:33 +0200)]
qcow2: Update zero_single_l2() to support L2 slices
zero_single_l2() limits the number of clusters to be zeroed to the
amount that fits inside an L2 table. Since we'll be loading L2 slices
instead of full tables we need to update that limit. The function is
renamed to zero_in_l2_slice() for clarity.
Apart from that, this function doesn't need any additional changes, so
this patch simply updates the variable name from l2_table to l2_slice.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: ebc16e7e79fa6969d8975ef487d679794de4fbcc.1517840877.git.berto@igalia.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:24 +0000 (16:33 +0200)]
qcow2: Update discard_single_l2() to support L2 slices
discard_single_l2() limits the number of clusters to be discarded
to the amount that fits inside an L2 table. Since we'll be loading
L2 slices instead of full tables we need to update that limit. The
function is renamed to discard_in_l2_slice() for clarity.
Apart from that, this function doesn't need any additional changes, so
this patch simply updates the variable name from l2_table to l2_slice.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1cb44a5b68be5334cb01b97a3db3a3c5a43396e5.1517840877.git.berto@igalia.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:23 +0000 (16:33 +0200)]
qcow2: Update handle_alloc() to support L2 slices
handle_alloc() loads an L2 table and limits the number of checked
clusters to the amount that fits inside that table. Since we'll be
loading L2 slices instead of full tables we need to update that limit.
Apart from that, this function doesn't need any additional changes, so
this patch simply updates the variable name from l2_table to l2_slice.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: b243299c7136f7014c5af51665431ddbf5e99afd.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:22 +0000 (16:33 +0200)]
qcow2: Update handle_copied() to support L2 slices
handle_copied() loads an L2 table and limits the number of checked
clusters to the amount that fits inside that table. Since we'll be
loading L2 slices instead of full tables we need to update that limit.
Apart from that, this function doesn't need any additional changes, so
this patch simply updates the variable name from l2_table to l2_slice.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 541ac001a7d6b86bab2392554bee53c2b312148c.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:21 +0000 (16:33 +0200)]
qcow2: Update qcow2_alloc_cluster_link_l2() to support L2 slices
There's a loop in this function that iterates over the L2 entries in a
table, so now we need to assert that it remains within the limits of
an L2 slice.
Apart from that, this function doesn't need any additional changes, so
this patch simply updates the variable name from l2_table to l2_slice.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: f9846a1c2efc51938e877e2a25852d9ab14797ff.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:20 +0000 (16:33 +0200)]
qcow2: Update qcow2_get_cluster_offset() to support L2 slices
qcow2_get_cluster_offset() checks how many contiguous bytes are
available at a given offset. The returned number of bytes is limited
by the amount that can be addressed without having to load more than
one L2 table.
Since we'll be loading L2 slices instead of full tables this patch
changes the limit accordingly using the size of the L2 slice for the
calculations instead of the full table size.
One consequence of this is that with small L2 slices operations such
as 'qemu-img map' will need to iterate in more steps because each
qcow2_get_cluster_offset() call will potentially return a smaller
number. However the code is already prepared for that so this doesn't
break semantics.
The l2_table variable is also renamed to l2_slice to reflect this, and
offset_to_l2_index() is replaced with offset_to_l2_slice_index().
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 6b602260acb33da56ed6af9611731cb7acd110eb.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:19 +0000 (16:33 +0200)]
qcow2: Update get_cluster_table() to support L2 slices
This patch updates get_cluster_table() to return L2 slices instead of
full L2 tables.
The code itself needs almost no changes, it only needs to call
offset_to_l2_slice_index() instead of offset_to_l2_index(). This patch
also renames all the relevant variables and the documentation.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 64cf064c0021ba315d3f3032da0f95db1b615f33.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:18 +0000 (16:33 +0200)]
qcow2: Refactor get_cluster_table()
After the previous patch we're now always using l2_load() in
get_cluster_table() regardless of whether a new L2 table has to be
allocated or not.
This patch refactors that part of the code to use one single l2_load()
call.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: ce31758c4a1fadccea7a6ccb93951eb01d95fd4c.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:17 +0000 (16:33 +0200)]
qcow2: Update l2_allocate() to support L2 slices
This patch updates l2_allocate() to support the qcow2 cache returning
L2 slices instead of full L2 tables.
The old code simply gets an L2 table from the cache and initializes it
with zeroes or with the contents of an existing table. With a cache
that returns slices instead of tables the idea remains the same, but
the code must now iterate over all the slices that are contained in an
L2 table.
Since now we're operating with slices the function can no longer
return the newly-allocated table, so it's up to the caller to retrieve
the appropriate L2 slice after calling l2_allocate() (note that with
this patch the caller is still loading full L2 tables, but we'll deal
with that in a separate patch).
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20fc0415bf0e011e29f6487ec86eb06a11f37445.1517840877.git.berto@igalia.com Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:16 +0000 (16:33 +0200)]
qcow2: Prepare l2_allocate() for adding L2 slice support
Adding support for L2 slices to l2_allocate() needs (among other
things) an extra loop that iterates over all slices of a new L2 table.
Putting all changes in one patch would make it hard to read because
all semantic changes would be mixed with pure indentation changes.
To make things easier this patch simply creates a new block and
changes the indentation of all lines of code inside it. Thus, all
modifications in this patch are cosmetic. There are no semantic
changes and no variables are renamed yet. The next patch will take
care of that.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: d0d7dca8520db304524f52f49d8157595a707a35.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:15 +0000 (16:33 +0200)]
qcow2: Update l2_load() to support L2 slices
Each entry in the qcow2 L2 cache stores a full L2 table (which uses a
complete cluster in the qcow2 image). A cluster is usually too large
to be used efficiently as the size for a cache entry, so we want to
decouple both values by allowing smaller cache entries. Therefore the
qcow2 L2 cache will no longer return full L2 tables but slices
instead.
This patch updates l2_load() so it can handle L2 slices correctly.
Apart from the offset of the L2 table (which we already had) we also
need the guest offset in order to calculate which one of the slices
we need.
An L2 slice has currently the same size as an L2 table (one cluster),
so for now this function will load exactly the same data as before.
This patch also removes a stale comment about the return value being
a pointer to the L2 table. This function returns an error code since 55c17e9821c474d5fcdebdc82ed2fc096777d611.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: b830aa1fc5b6f8e3cb331d006853fe22facca847.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:14 +0000 (16:33 +0200)]
qcow2: Add offset_to_l2_slice_index()
Similar to offset_to_l2_index(), this function takes a guest offset
and returns the index in the L2 slice that contains its L2 entry.
An L2 slice has currently the same size as an L2 table (one cluster),
so both functions return the same value for now.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: a1c45c5c5a76146dd1712d8d1e7b409ad539c718.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:13 +0000 (16:33 +0200)]
qcow2: Add l2_slice_size field to BDRVQcow2State
The BDRVQcow2State structure contains an l2_size field, which stores
the number of 64-bit entries in an L2 table.
For efficiency reasons we want to be able to load slices instead of
full L2 tables, so we need to know how many entries an L2 slice can
hold.
An L2 slice is the portion of an L2 table that is loaded by the qcow2
cache. At the moment that cache can only load complete tables,
therefore an L2 slice has the same size as an L2 table (one cluster)
and l2_size == l2_slice_size.
Later we'll allow smaller slices, but until then we have to use this
new l2_slice_size field to make the rest of the code ready for that.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: adb048595f9fb5dfb110c802a8b3c3be3b937f37.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:12 +0000 (16:33 +0200)]
qcow2: Add offset_to_l1_index()
Similar to offset_to_l2_index(), this function returns the index in
the L1 table for a given guest offset. This is only used in a couple
of places and it's not a particularly complex calculation, but it
makes the code a bit more readable.
Although in the qcow2_get_cluster_offset() case the old code was
taking advantage of the l1_bits variable, we're going to get rid of
the other uses of l1_bits in a later patch anyway, so it doesn't make
sense to keep it just for this.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: a5f626fed526b7459a0425fad06d823d18df8522.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:11 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_is_table_offset()
This function was only using the BlockDriverState parameter to pass it
to qcow2_cache_get_table_addr(). This is no longer necessary so this
parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: eb0ed90affcf302e5a954bafb5931b5215483d3a.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:10 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_discard()
This function was only using the BlockDriverState parameter to pass it
to qcow2_cache_get_table_idx() and qcow2_cache_table_release(). This
is no longer necessary so this parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 9724f7e38e763ad3be32627c6b7fe8df9edb1476.1517840877.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:09 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_clean_unused()
This function was only using the BlockDriverState parameter to pass it
to qcow2_cache_table_release(). This is no longer necessary so this
parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: b74f17591af52f201de0ea3a3b2dd0a81932334d.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:08 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_destroy()
This function was never using the BlockDriverState parameter so it can
be safely removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 49c74fe8b3aead9056e61a85b145ce787d06262b.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:07 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_put()
This function was only using the BlockDriverState parameter to pass it
to qcow2_cache_get_table_idx(). This is no longer necessary so this
parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 6f98155489054a457563da77cdad1a66ebb3e896.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:06 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_entry_mark_dirty()
This function was only using the BlockDriverState parameter to pass it
to qcow2_cache_get_table_idx(). This is no longer necessary so this
parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 5c40516a91782b083c1428b7b6a41bb9e2679bfb.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:05 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_table_release()
This function was only using the BlockDriverState parameter to get the
cache table size (since it was equal to the cluster size). This is no
longer necessary so this parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 7c1b262344375d52544525f85bbbf0548d5ba575.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:04 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_get_table_idx()
This function was only using the BlockDriverState parameter to get the
cache table size (since it was equal to the cluster size). This is no
longer necessary so this parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: da3575d47c9a181a2cfd4715e53dd84a2c651017.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:03 +0000 (16:33 +0200)]
qcow2: Remove BDS parameter from qcow2_cache_get_table_addr()
This function was only using the BlockDriverState parameter to get the
cache table size (since it was equal to the cluster size). This is no
longer necessary so this parameter can be removed.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: e1f943a9e89e1deb876f45de1bb22419ccdb6ad3.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Alberto Garcia [Mon, 5 Feb 2018 14:33:02 +0000 (16:33 +0200)]
qcow2: Add table size field to Qcow2Cache
The table size in the qcow2 cache is currently equal to the cluster
size. This doesn't allow us to use the cache memory efficiently,
particularly with large cluster sizes, so we need to be able to have
smaller cache tables that are independent from the cluster size. This
patch adds a new field to Qcow2Cache that we can use instead of the
cluster size.
The current table size is still being initialized to the cluster size,
so there are no semantic changes yet, but this patch will allow us to
prepare the rest of the code and simplify a few function calls.
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 67a1bf9e55f417005c567bead95a018dc34bc687.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: b498733b6706a859a03678d74ecbd26aeba129aa.1517840876.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
To maintain load/store disabled bitmap there is new approach:
- deprecate @autoload flag of block-dirty-bitmap-add, make it ignored
- store enabled bitmaps as "auto" to qcow2
- store disabled bitmaps without "auto" flag to qcow2
- on qcow2 open load "auto" bitmaps as enabled and others
as disabled (except in_use bitmaps)
Also, adjust iotests 165 and 176 appropriately.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180202160752.143796-1-vsementsov@virtuozzo.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Max Reitz [Tue, 13 Feb 2018 13:03:55 +0000 (14:03 +0100)]
sheepdog: Pass old and new size to sd_prealloc()
sd_prealloc() will now preallocate the area [old_size, new_size). As
before, it rounds to buf_size and may thus overshoot and preallocate
areas that were not requested to be preallocated. For image creation,
this is no change in behavior. For truncation, this is in accordance
with the documentation for preallocated truncation.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Tue, 13 Feb 2018 13:03:50 +0000 (14:03 +0100)]
gluster: Move glfs_close() to create's clean-up
glfs_close() is a classical clean-up operation, as can be seen by the
fact that it is executed even if the truncation before it failed.
Also, moving it to clean-up makes it more clear that if it fails, we do
not want it to overwrite the current ret value if that signifies an
error already.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
qemu-io: fix EOF Ctrl-D handling in qemu-io readline code
qemu-io puts the TTY into non-canonical mode, which means no EOF processing is
done and thus getchar() will never return the EOF constant. Instead we have to
query the TTY attributes to determine the configured EOF character (usually
Ctrl-D / 0x4), and then explicitly check for that value. This fixes the
regression that prevented Ctrl-D from triggering an exit of qemu-io that has
existed since readline was first added in
Max Reitz [Mon, 12 Feb 2018 12:47:18 +0000 (13:47 +0100)]
iotests: Use virtio-blk in 155
Only a few select machine types support floppy drives and there is
actually nothing preventing us from using virtio here, so let's do it.
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Wed, 7 Feb 2018 16:29:20 +0000 (17:29 +0100)]
block: early check for blockers on drive-mirror
Even if an op blocker is present for BLOCK_OP_TYPE_MIRROR_SOURCE,
it is checked a bit late and the result is that the target is
created even if drive-mirror subsequently fails. Add an early
check to avoid this.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Fri, 9 Feb 2018 14:42:22 +0000 (16:42 +0200)]
qcow2: Use g_try_realloc() in qcow2_expand_zero_clusters()
g_realloc() aborts the program if it fails to allocate the required
amount of memory. We want to detect that scenario and return an error
instead, so let's use g_try_realloc().
Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Fam Zheng [Fri, 9 Feb 2018 05:29:15 +0000 (13:29 +0800)]
docs: Document share-rw property more thoroughly
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Fam Zheng [Fri, 9 Feb 2018 05:29:13 +0000 (13:29 +0800)]
qemu-img.texi: Clean up parameter list
Split options out of the "@table @var" section and create a "@table
@option", then use whitespaces and blank lines consistently.
Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Fam Zheng [Tue, 30 Jan 2018 06:25:03 +0000 (14:25 +0800)]
iotests: Fix CID for VMDK afl image
This reverts commit 76bf133c4 which updated the reference output, and
fixed the reference image, because the code path we want to exercise is
actually the invalid image size.
The descriptor block in the image, which includes the CID to verify, has been
invalid since the reference image was added. Since commit 9877860e7bd we report
this error earlier than the "file too large", so 059.out mismatches.
The binary change is generated along the operations of:
Peter Maydell [Mon, 12 Feb 2018 14:52:48 +0000 (14:52 +0000)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180212' into staging
ppc patch queue 2018-02-12
Here's the accumulatead ppc and pseries related patches for the last
while. Highlights are:
* A number of Macintosh / CUDA cleanups from Mark Cave-Ayland
* An important bug fix (missing "break;") for
H_GET_CPU_CHARACTERISTICS
* Yet another fix for SMT mode handling
* Assorted other cleanups and fixes
* remotes/dgibson/tags/ppc-for-2.12-20180212:
misc: introduce new mos6522 VIA device and enable it for ppc builds
cuda: factor out timebase-derived counter value and load time
cuda: set timer 1 frequency property to CUDA_TIMER_FREQ
cuda: don't call cuda_update() when writing to ACR register
cuda: minor cosmetic tidy-ups to get_next_irq_time()
cuda: rename frequency property to tb_frequency
cuda: introduce CUDAState parameter to get_counter()
spapr: set vsmt to MAX(8, smp_threads)
cuda: don't allow writes to port output pins
cuda: do not use old_mmio accesses
hw/ppc: rename functions in comments
spapr: add missing break in h_get_cpu_characteristics()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/mjt/tags/trivial-patches-fetch:
tests/qapi: use ARRAY_SIZE macro
tests/qapi: use QEMU_IS_ALIGNED macro
tests/hbitmap: use ARRAY_SIZE macro
async: use ARRAY_SIZE macro
qga: use ARRAY_SIZE macro
MAINTAINERS: Add qemu-binfmt-conf.sh script
oslib-posix: check for posix_memalign in configure script
maint: Mention web site maintenance in README
build: fix typo in error message
configure: Allow capstone=git only if git update is not disabled
scripts/make-release: Don't archive .git files
qemu-options.hx: Remove confusing spaces in parameter listings
mailmap: set preferred spelling for Daniel Berrangé
Drop unneeded system header includes
machine: Polish -machine xxx,help
scripts/argparse.py: spelling (independant)
qapi-schema.json: spelling (independant comparation)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
misc: introduce new mos6522 VIA device and enable it for ppc builds
The MOS6522 VIA forms the bridge part of several Mac devices, including the
Mac via-cuda and via-pmu devices. Introduce a standard mos6522 device that
can be shared amongst multiple implementations.
This is effectively taking the 6522 parts out of cuda.c and turning them
into a separate device whilst also applying some style tidy-ups and including
a conversion to trace-events.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
cuda: factor out timebase-derived counter value and load time
Commit b981289c49 "PPC: Cuda: Use cuda timer to expose tbfreq to guest" altered
the timer calculations from those based upon the hardware CUDA clock frequency
to those based upon the CPU timebase frequency.
In fact we can isolate the differences to 2 simple changes: one to the counter
read value and another to the counter load time. Move these changes into
separate functions so the implementation can be swapped later.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
cuda: set timer 1 frequency property to CUDA_TIMER_FREQ
Now that we have successfully decoupled the timebase frequency and the hardware
timer frequency, set the timer 1 frequency property to CUDA_TIMER_FREQ and alter
get_next_irq_time() to use it rather than the hard-coded constant.
In addition to this we must now switch the tb_diff calculation over to use the
timebase frequency now that the hardware clock frequency and the timebase
frequency are different.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
[dwg: Correct a conflict due to a bug in an earlier patch] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
cuda: minor cosmetic tidy-ups to get_next_irq_time()
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This allows us to more easily differentiate between the timebase frequency used
to calibrate the MacOS timers and the actual frequency of the hardware clock as
indicated by CUDA_TIMER_FREQ.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[dwg: Revert some extraneous changes which break compile] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
cuda: introduce CUDAState parameter to get_counter()
This will be required shortly and also happens to match nicely with the
corresponding signature for set_counter().
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Laurent Vivier [Fri, 9 Feb 2018 08:18:58 +0000 (09:18 +0100)]
spapr: set vsmt to MAX(8, smp_threads)
We ignore silently the value of smp_threads when we set
the default VSMT value, and if smp_threads is greater than VSMT
kernel is going into trouble later.
Fixes: 8904e5a750
("spapr: Adjust default VSMT value for better migration compatibility")
Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
oslib-posix: check for posix_memalign in configure script
Check for the presence of posix_memalign() in the configure script,
not using "defined(_POSIX_C_SOURCE) && !defined(__sun__)". This
lets qemu use posix_memalign() on NetBSD versions that have it,
instead of falling back to valloc() which is wasteful when the
required alignment is smaller than a page.
Signed-off-by: Andreas Gustafsson <gson@gson.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Kamil Rytarowski <n54@gmx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
configure: Allow capstone=git only if git update is not disabled
Even with --disable-git-update, ./configure tries updating the capstone
submodule instead of marking it "no"; this disables capstone submodule
if git update is disabled.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Thomas Huth <thuth@redhat.com>
Thomas Huth [Tue, 30 Jan 2018 09:36:21 +0000 (10:36 +0100)]
qemu-options.hx: Remove confusing spaces in parameter listings
The spaces between the parameters in the chardev and tpmdev sections
are rather confusing than helpful, and prevent that the lists can be
copy-n-pasted easily for real usage. We also don't use such spaces
in other sections in the documentation, e.g. with the -netdev option,
so let's be consistent and remove the spaces in the chardev and tpmdev
sections, too.
Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Eric Blake [Wed, 7 Feb 2018 16:03:02 +0000 (10:03 -0600)]
Drop unneeded system header includes
<memory.h> is a non-standard obsolete header that was long ago
replaced by <string.h>.
<malloc.h> is a non-standard header; it is not obsolete (we must
use it for malloc_trim, for example), but generally should not
be used in files that just need malloc() and friends, where
<stdlib.h> is the standard header.
And since osdep.h already guarantees string.h and stdlib.h, we
can drop these unusual system header includes as redundant
rather than replacing them.
Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
Commit bcb5ce08cf ("spapr: Rename machine init functions for clarity")
renamed ppc_spapr_reset to spapr_machine_reset and ppc_spapr_init
to spapr_machine_init. Let's also rename the references in
comments.
Signed-off-by: Daniel Henrique Barboza <danielhb@linux.vnet.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We don't need the can_write_zeroes_with_unmap field in
BlockDriverInfo, because it is redundant information with
supported_zero_flags & BDRV_REQ_MAY_UNMAP. Note that
BlockDriverInfo and supported_zero_flags are both per-device
settings, rather than global state about the driver as a
whole, which means one or both of these bits of information
can already be conditional. Let's audit how they were set:
crypto: always setting can_write_ to false is pointless (the
struct starts life zero-initialized), no use of supported_
nbd: just recently fixed to set can_write_ if supported_
includes MAY_UNMAP (thus this commit effectively reverts bca80059e and solves the problem mentioned there in a more
global way)
file-posix, iscsi, qcow2: can_write_ is conditional, while
supported_ was unconditional; but passing MAY_UNMAP would
fail with ENOTSUP if the condition wasn't met
qed: can_write_ is unconditional, but pwrite_zeroes lacks
support for MAY_UNMAP and supported_ is not set. Perhaps
support can be added later (since it would be similar to
qcow2), but for now claiming false is no real loss
all other drivers: can_write_ is not set, and supported_ is
either unset or a passthrough
Simplify the code by moving the conditional into
supported_zero_flags for all drivers, then dropping the
now-unused BDI field. For callers that relied on
bdrv_can_write_zeroes_with_unmap(), we return the same
per-device settings for drivers that had conditions (no
observable change in behavior there); and can now return
true (instead of false) for drivers that support passthrough
(for example, the commit driver) which gives those drivers
the same fix as nbd just got in bca80059e. For callers that
relied on supported_zero_flags, we now have a few more places
that can avoid a wasted call to pwrite_zeroes() that will
just fail with ENOTSUP.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180126193439.20219-1-eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Support default luks options in VM.add_drive and in new library
function qemu_img_create. Use it in 205 iotests.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180206182507.21753-1-vsementsov@virtuozzo.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Peter Maydell [Fri, 9 Feb 2018 14:39:09 +0000 (14:39 +0000)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2018-02-07-v4' into staging
Miscellaneous patches for 2018-02-07
# gpg: Signature made Fri 09 Feb 2018 12:52:51 GMT
# gpg: using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* remotes/armbru/tags/pull-misc-2018-02-07-v4:
Move include qemu/option.h from qemu-common.h to actual users
Drop superfluous includes of qapi/qmp/qjson.h
Drop superfluous includes of qapi/qmp/dispatch.h
Include qapi/qmp/qnull.h exactly where needed
Include qapi/qmp/qnum.h exactly where needed
Include qapi/qmp/qbool.h exactly where needed
Include qapi/qmp/qstring.h exactly where needed
Include qapi/qmp/qdict.h exactly where needed
Include qapi/qmp/qlist.h exactly where needed
Include qapi/qmp/qobject.h exactly where needed
qdict qlist: Make most helper macros functions
Eliminate qapi/qmp/types.h
Typedef the subtypes of QObject in qemu/typedefs.h, too
Include qmp-commands.h exactly where needed
Drop superfluous includes of qapi/qmp/qerror.h
Include qapi/error.h exactly where needed
Drop superfluous includes of qapi-types.h and test-qapi-types.h
Clean up includes
Use #include "..." for our own headers, <...> for others
vnc: use stubs for CONFIG_VNC=n dummy functions
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Bennée [Wed, 7 Feb 2018 15:19:25 +0000 (15:19 +0000)]
.travis.yml: add --disable-linux-user for some jobs
The modules and co-routine builds are only really relevant to softmmu
builds and regularly timeout on Travis. Let's disable linux-user
builds here for more headroom.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Fri, 9 Feb 2018 13:27:40 +0000 (13:27 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180209' into staging
target-arm queue:
* Support M profile derived exceptions on exception entry and exit
* Implement AArch64 v8.2 crypto insns (SHA-512, SHA-3, SM3, SM4)
* Implement working i.MX6 SD controller
* Various devices preparatory to i.MX7 support
* Preparatory patches for SVE emulation
* v8M: Fix bug in implementation of 'TT' insn
* Give useful error if user tries to use userspace GICv3 with KVM
# gpg: Signature made Fri 09 Feb 2018 11:01:23 GMT
# gpg: using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20180209: (30 commits)
hw/core/generic-loader: Allow PC to be set on command line
target/arm/translate.c: Fix missing 'break' for TT insns
target/arm/kvm: gic: Prevent creating userspace GICv3 with KVM
target/arm: Add SVE state to TB->FLAGS
target/arm: Add ZCR_ELx
target/arm: Add SVE to migration state
target/arm: Add predicate registers for SVE
target/arm: Expand vector registers for SVE
hw/arm: Move virt's PSCI DT fixup code to arm/boot.c
usb: Add basic code to emulate Chipidea USB IP
i.MX: Add implementation of i.MX7 GPR IP block
i.MX: Add i.MX7 GPT variant
i.MX: Add code to emulate GPCv2 IP block
i.MX: Add code to emulate i.MX7 SNVS IP-block
i.MX: Add code to emulate i.MX2 watchdog IP block
i.MX: Add code to emulate i.MX7 CCM, PMU and ANALOG IP blocks
hw: i.MX: Convert i.MX6 to use TYPE_IMX_USDHC
sdhci: Add i.MX specific subtype of SDHCI
target/arm: enable user-mode SHA-3, SM3, SM4 and SHA-512 instruction support
target/arm: implement SM4 instructions
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move include qemu/option.h from qemu-common.h to actual users
qemu-common.h includes qemu/option.h, but most places that include the
former don't actually need the latter. Drop the include, and add it
to the places that actually need it.
While there, drop superfluous includes of both headers, and
separate #include from file comment with a blank line.
This cleanup makes the number of objects depending on qemu/option.h
drop from 4545 (out of 4743) to 284 in my "build everything" tree.
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-20-armbru@redhat.com>
[Semantic conflict with commit bdd6a90a9e in block/nvme.c resolved]
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-19-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-18-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-17-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-16-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-15-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-14-armbru@redhat.com>
This cleanup makes the number of objects depending on qapi/qmp/qdict.h
drop from 4550 (out of 4743) to 368 in my "build everything" tree.
For qapi/qmp/qobject.h, the number drops from 4552 to 390.
While there, separate #include from file comment with a blank line.
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-13-armbru@redhat.com>
This cleanup makes the number of objects depending on qapi/qmp/qlist.h
drop from 4551 (out of 4743) to 16 in my "build everything" tree.
While there, separate #include from file comment with a blank line.
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-12-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-11-armbru@redhat.com>
The macro expansions of qdict_put_TYPE() and qlist_append_TYPE() need
qbool.h, qnull.h, qnum.h and qstring.h to compile. We include qnull.h
and qnum.h in the headers, but not qbool.h and qstring.h. Works,
because we include those wherever the macros get used.
Open-coding these helpers is of dubious value. Turn them into
functions and drop the includes from the headers.
This cleanup makes the number of objects depending on qapi/qmp/qnum.h
from 4551 (out of 4743) to 46 in my "build everything" tree. For
qapi/qmp/qnull.h, the number drops from 4552 to 21.
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-10-armbru@redhat.com>
qapi/qmp/types.h is a convenience header to include a number of
qapi/qmp/ headers. Since we rarely need all of the headers
qapi/qmp/types.h includes, we bypass it most of the time. Most of the
places that use it don't need all the headers, either.
Include the necessary headers directly, and drop qapi/qmp/types.h.
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-9-armbru@redhat.com>
Typedef the subtypes of QObject in qemu/typedefs.h, too
This renders many inclusions of qapi/qmp/q*.h superfluous. They'll be
dropped in the next few commits.
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-8-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-6-armbru@redhat.com>
Peter Maydell [Fri, 9 Feb 2018 11:46:32 +0000 (11:46 +0000)]
Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20180209' into staging
s390x updates:
- rework interrupt handling for tcg, smp is now considered non-experimental
- some general improvements in the flic
- improvements in the pci code, and wiring it up in tcg
- add PTFF subfunctions for multiple-epoch to the cpu model
- maintainership updates
- various other fixes and improvements
* remotes/cohuck/tags/s390x-20180209: (29 commits)
MAINTAINERS: add David as additional tcg/s390 maintainer
MAINTAINERS: reorganize s390-ccw bios maintainership
MAINTAINERS: add myself as overall s390x maintainer
s390x/pci: use the right pal and pba in reg_ioat()
s390x/pci: fixup global refresh
s390x/pci: fixup the code walking IOMMU tables
s390x/cpumodel: model PTFF subfunctions for Multiple-epoch facility
s390x/cpumodel: allow zpci features in qemu model
s390x/tcg: wire up pci instructions
s390x/sclp: fix event mask handling
s390x/flic: cache the common flic class in a central function
s390x/kvm: cache the kvm flic in a central function
s390x/tcg: cache the qemu flic in a central function
configure: s390x supports mttcg now
s390x/tcg: remove SMP warning
s390x/tcg: STSI overhaul
s390x: fix size + content of STSI blocks
s390x/flic: optimize CPU wakeup for TCG
s390x/flic: implement qemu_s390_clear_io_flic()
s390x/tcg: implement TEST PENDING INTERRUPTION
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 5 Feb 2018 15:04:26 +0000 (15:04 +0000)]
hw/core/generic-loader: Allow PC to be set on command line
The documentation for the generic loader claims that you can
set the PC for a CPU with an option of the form
-device loader,cpu-num=0,addr=0x10000004
However if you try this QEMU complains:
cpu_num must be specified when setting a program counter
This is because we were testing against 0 rather than CPU_NONE.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180205150426.20542-1-peter.maydell@linaro.org
Peter Maydell [Tue, 6 Feb 2018 10:39:41 +0000 (10:39 +0000)]
target/arm/translate.c: Fix missing 'break' for TT insns
The code where we added the TT instruction was accidentally
missing a 'break', which meant that after generating the code
to execute the TT we would fall through to 'goto illegal_op'
and generate code to take an UNDEF insn.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180206103941.13985-1-peter.maydell@linaro.org
projects / qemu-xen.git / log