sdk/emulator/qemu.git
8 years agoxen: Switch uses of xc_map_foreign_{pages,bulk} to use libxenforeignmemory API.
Ian Campbell [Fri, 15 Jan 2016 13:23:41 +0000 (13:23 +0000)]
xen: Switch uses of xc_map_foreign_{pages,bulk} to use libxenforeignmemory API.

In Xen 4.7 we are refactoring parts libxenctrl into a number of
separate libraries which will provide backward and forward API and ABI
compatiblity.

One such library will be libxenforeignmemory which provides access to
privileged foreign mappings and which will provide an interface
equivalent to xc_map_foreign_{pages,bulk}.

The new xenforeignmemory_map() function behaves like
xc_map_foreign_pages() when the err argument is NULL and like
xc_map_foreign_bulk() when err is non-NULL, which maps into the shim
here onto checking err == NULL and calling the appropriate old
function.

Note that xenforeignmemory_map() takes the number of pages before the
arrays themselves, in order to support potentially future use of
variable-length-arrays in the prototype (in the future, when Xen's
baseline toolchain requirements are new enough to ensure VLAs are
supported).

In preparation for adding support for libxenforeignmemory add support
to the <=4.0 and <=4.6 compat code in xen_common.h to allow us to
switch to using the new API. These shims will disappear for versions
of Xen which include libxenforeignmemory.

Since libxenforeignmemory will have its own handle type but for <= 4.6
the functionality is provided by using a libxenctrl handle we
introduce a new global xen_fmem alongside the existing xen_xc. In fact
we make xen_fmem a pointer to the existing xen_xc, which then works
correctly with both <=4.0 (xc handle is an int) and <=4.6 (xc handle
is a pointer). In the latter case xen_fmem is actually a double
indirect pointer, but it all falls out in the wash.

Unlike libxenctrl libxenforeignmemory has an explicit unmap function,
rather than just specifying that munmap should be used, so the unmap
paths are updated to use xenforeignmemory_unmap, which is a shim for
munmap on these versions of xen. The mappings in xen-hvm.c do not
appear to be unmapped (which makes sense for a qemu-dm process)

In fb_disconnect this results in a change from simply mmap over the
existing mapping (with an implicit munmap) to expliclty unmapping with
xenforeignmemory_unmap and then mapping the required anonymous memory
in the same hole. I don't think this is a problem since any other
thread which was racily touching this region would already be running
the risk of hitting the mapping halfway through the call. If this is
thought to be a problem then we could consider adding an extra API to
the libxenforeignmemory interface to replace a foreign mapping with
anonymous shared memory, but I'd prefer not to.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoxen: Switch uses of xc_map_foreign_range into xc_map_foreign_pages
Ian Campbell [Fri, 15 Jan 2016 13:23:40 +0000 (13:23 +0000)]
xen: Switch uses of xc_map_foreign_range into xc_map_foreign_pages

In Xen 4.7 we are refactoring parts libxenctrl into a number of
separate libraries which will provide backward and forward API and ABI
compatiblity.

One such library will be libxenforeignmemory which provides access to
privileged foreign mappings and which will provide an interface
equivalent to xc_map_foreign_{pages,bulk}.

In preparation for this switch all uses of xc_map_foreign_range to
xc_map_foreign_pages. This is trivial because size was always
XC_PAGE_SIZE so the necessary adjustments are trivial:

  * Pass &mfn (an array of length 1) instead of mfn. The function
    takes a pointer to const, so there is no possibily of mfn changing
    due to this change.
  * Pass nr_pages=1 instead of size=XC_PAGE_SIZE

There is one wrinkle in xen_console.c:con_initialise() where
con->ring_ref is an int but can in some code paths (when !xendev->dev)
be treated as an mfn. I think this is an existing latent truncation
hazard on platforms where xen_pfn_t is 64-bit and int is 32-bit (e.g.
amd64, both arm* variants). I'm unsure under what circumstances
xendev->dev can be NULL or if anything elsewhere ensures the value
fits into an int. For now I just use a temporary xen_pfn_t to in
effect upcast the pointer from int* to xen_pfn_t*.

In xenfb.c:common_bind we now explicitly launder the mfn into a
xen_pfn_t, so it has the correct type to be passed to
xc_map_foreign_pages and doesn't provoke warnings on 32-bit x86.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoxen: Switch to libxengnttab interface for compat shims.
Ian Campbell [Fri, 15 Jan 2016 13:23:39 +0000 (13:23 +0000)]
xen: Switch to libxengnttab interface for compat shims.

In Xen 4.7 we are refactoring parts libxenctrl into a number of
separate libraries which will provide backward and forward API and ABI
compatiblity.

One such library will be libxengnttab which provides access to grant
tables.

In preparation for this switch the compatibility layer in xen_common.h
(which support building with older versions of Xen) to use what will
be the new library API. This means that the gnttab shim will disappear
for versions of Xen which include libxengnttab.

To simplify things for the <= 4.0.0 support we wrap the int fd in a
malloc(sizeof int) such that the handle is always a pointer. This
leads to less typedef headaches and the need for
XC_HANDLER_INITIAL_VALUE etc for these interfaces.

Note that this patch does not add any support for actually using
libxengnttab, it just adjusts the existing shims.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoxen: Switch to libxenevtchn interface for compat shims.
Ian Campbell [Fri, 15 Jan 2016 13:23:38 +0000 (13:23 +0000)]
xen: Switch to libxenevtchn interface for compat shims.

In Xen 4.7 we are refactoring parts libxenctrl into a number of
separate libraries which will provide backward and forward API and ABI
compatiblity.

One such library will be libxenevtchn which provides access to event
channels.

In preparation for this switch the compatibility layer in xen_common.h
(which support building with older versions of Xen) to use what will
be the new library API. This means that the evtchn shim will disappear
for versions of Xen which include libxenevtchn.

To simplify things for the <= 4.0.0 support we wrap the int fd in a
malloc(sizeof int) such that the handle is always a pointer. This
leads to less typedef headaches and the need for
XC_HANDLER_INITIAL_VALUE etc for these interfaces.

Note that this patch does not add any support for actually using
libxenevtchn, it just adjusts the existing shims.

Note that xc_evtchn_alloc_unbound functionality remains in libxenctrl,
since that functionality is not exposed by /dev/xen/evtchn.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoxen_console: correctly cleanup primary console on teardown.
Ian Campbell [Fri, 15 Jan 2016 13:23:37 +0000 (13:23 +0000)]
xen_console: correctly cleanup primary console on teardown.

All of the work in con_disconnect applies to the primary console case
(when xendev->dev is NULL). Therefore remove the early check and bail
and allow it to fall through. All of the existing code is correctly
conditional already.

The ->dev and ->gnttabdev handles are either both set or neither. For
consistency with con_initialise() with to the former here too.

With this con_initialise and con_disconnect now mirror each other.

Fix up a hard tab in the function while editing.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoMerge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging
Peter Maydell [Tue, 26 Jan 2016 09:16:07 +0000 (09:16 +0000)]
Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Mon 25 Jan 2016 19:39:58 GMT using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"

* remotes/jnsnow/tags/ide-pull-request:
  fdc: change auto fallback drive for ISA FDC to 288
  qtest/fdc: Support for 2.88MB drives
  fdc: rework pick_geometry
  fdc: add physical disk sizes
  fdc: add drive type option
  fdc: Add fallback option
  fdc: add pick_drive
  fdc: Throw an assertion on misconfigured fd_formats table
  fdc: add disk field
  fdc: add drive type qapi enum
  fdc: reduce number of pick_geometry arguments
  fdc: move pick_geometry
  ide: Correct the CHS 'cyls_max' limit to be 65535

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agofdc: change auto fallback drive for ISA FDC to 288
John Snow [Fri, 22 Jan 2016 20:51:05 +0000 (15:51 -0500)]
fdc: change auto fallback drive for ISA FDC to 288

The 2.88 drive is more suitable as a default because
it can still read 1.44 images correctly, but the reverse
is not true.

Since there exist virtio-win drivers that are shipped on
2.88 floppy images, this patch will allow VMs booted without
a floppy disk inserted to later insert a 2.88MB floppy and
have that work.

This patch has been tested with msdos, freedos, fedora,
windows 8 and windows 10 without issue: if problems do
arise for certain guests being unable to cope with 2.88MB
drives as the default, they are in the minority and can use
type=144 as needed (or insert a proper boot medium and omit
type=144/288 or use type=auto) to obtain different drive types.

As icing, the default will remain auto/144 for any pre-2.6
machine types, hopefully minimizing the impact of this change
in legacy hw to basically zero.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-13-git-send-email-jsnow@redhat.com

8 years agoqtest/fdc: Support for 2.88MB drives
John Snow [Fri, 22 Jan 2016 20:51:04 +0000 (15:51 -0500)]
qtest/fdc: Support for 2.88MB drives

The old test assumes a 1.44MB drive.
Assert that the QEMU default drive is now either 1.44 or 2.88.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-12-git-send-email-jsnow@redhat.com

8 years agofdc: rework pick_geometry
John Snow [Fri, 22 Jan 2016 20:51:03 +0000 (15:51 -0500)]
fdc: rework pick_geometry

This one is the crazy one.

fd_revalidate currently uses pick_geometry to tell if the diskette
geometry has changed upon an eject/insert event, but it won't allow us
to insert a 1.44MB diskette into a 2.88MB drive. This is inflexible.

The new algorithm applies a new heuristic to guessing disk geometries
that allows us to switch diskette types as long as the physical size
matches before falling back to the old heuristic.

The old one is roughly:
 - If the size (sectors) and type matches, choose it.
 - Fall back to the first geometry that matched our type.

The new one is:
 - If the size (sectors) and type matches, choose it.
 - If the size (sectors) and physical size match, choose it.
 - Fall back to the first geometry that matched our type.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1453495865-9649-11-git-send-email-jsnow@redhat.com

8 years agofdc: add physical disk sizes
John Snow [Fri, 22 Jan 2016 20:51:02 +0000 (15:51 -0500)]
fdc: add physical disk sizes

2.88MB capable drives can accept 1.44MB floppies,
for instance. To rework the pick_geometry function,
we need to know if our current drive can even accept
the type of disks we're considering.

NB: This allows us to distinguish between all of the
"total sectors" collisions between 1.20MB and 1.44MB
diskette types, by using the physical drive size as a
differentiator.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-10-git-send-email-jsnow@redhat.com

8 years agofdc: add drive type option
John Snow [Fri, 22 Jan 2016 20:51:01 +0000 (15:51 -0500)]
fdc: add drive type option

This patch adds a new explicit Floppy Drive Type option. The existing
behavior in QEMU is to automatically guess a drive type based on the
media inserted, or if a diskette is not present, arbitrarily assign one.

This behavior can be described as "auto." This patch adds the option
to pick an explicit behavior: 120, 144, 288 or none. The new "auto"
option is intended to mimic current behavior, while the other types
pick one explicitly.

Set the type given by the CLI during fd_init. If the type remains the
default (auto), we'll attempt to scan an inserted diskette if present
to determine a type. If auto is selected but no diskette is present,
we fall back to a predetermined default (currently 1.44MB to match
legacy QEMU behavior.)

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-9-git-send-email-jsnow@redhat.com

8 years agofdc: Add fallback option
John Snow [Fri, 22 Jan 2016 20:51:00 +0000 (15:51 -0500)]
fdc: Add fallback option

Currently, QEMU chooses a drive type automatically based on the inserted
media. If there is no disk inserted, it chooses a 1.44MB drive type.

Change this behavior to be configurable, but leave it defaulted to 1.44.

This is not earnestly intended to be used by a user or a management
library, but rather exists so that pre-2.6 board types can configure it
to be a legacy value.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-8-git-send-email-jsnow@redhat.com

8 years agofdc: add pick_drive
John Snow [Fri, 22 Jan 2016 20:50:59 +0000 (15:50 -0500)]
fdc: add pick_drive

Split apart pick_geometry by creating a pick_drive routine that will only
ever called during device bring-up instead of relying on pick_geometry to
be used in both cases.

With this change, the drive field is changed to be 'write once'. It is
not altered after the initialization routines exit.

media_validated does not need to be migrated. The target VM
will just revalidate the media on post_load anyway.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-7-git-send-email-jsnow@redhat.com

8 years agofdc: Throw an assertion on misconfigured fd_formats table
John Snow [Fri, 22 Jan 2016 20:50:58 +0000 (15:50 -0500)]
fdc: Throw an assertion on misconfigured fd_formats table

pick_geometry is a convoluted function that makes it difficult to tell
at a glance what QEMU's current behavior for choosing a floppy drive
type is when it can't quite identify the diskette.

The code iterates over all entries in the candidate geometry table
("fd_formats") and if our specific drive type matches a row in the table,
then either "match" is set to that entry (an exact match) and the loop
exits, or "first_match" will be non-negative (the first such entry that
shares the same drive type), and the loop continues. If our specific
drive type is NONE, then all drive types in the candidate geometry table
are considered. After iteration, if "match" was not set, we fall back to
"first match".

This means that either "match" was set, or we exited the loop without an
exact match, in which case:

- If drive type is NONE, the default is truly fd_formats[0], a 1.44MB
  type, because "first_match" will always get set to the first item.

- If drive type is not NONE, pick_geometry's iteration was fussier and
  only looked at rows that matched our drive type. However, since all
  possible drive types are represented in the table, we still know that
  "first match" was set.

- If drive type is not NONE and the fd_formats table lists no options for
  our drive type, we choose fd_formats[1], an incomprehensibly bizarre
  choice that can never happen anyway.

Correct this: If first_match is -1, it can ONLY mean we didn't edit our
fd_formats table correctly. Throw an assertion instead.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-6-git-send-email-jsnow@redhat.com

8 years agofdc: add disk field
John Snow [Fri, 22 Jan 2016 20:50:57 +0000 (15:50 -0500)]
fdc: add disk field

Currently, 'drive' is used both to represent the current diskette
type as well as the current drive type.

This patch adds a 'disk' field that is updated explicitly to match
the type of the disk.

As of this patch, disk and drive are always the same, but forthcoming
patches to change the behavior of pick_geometry will invalidate this
assumption.

disk does not need to be migrated because it is not user-visible state
nor is it currently used for any calculations. It is purely informative,
and will be rebuilt automatically via fd_revalidate on the new host.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-5-git-send-email-jsnow@redhat.com

8 years agofdc: add drive type qapi enum
John Snow [Fri, 22 Jan 2016 20:50:56 +0000 (15:50 -0500)]
fdc: add drive type qapi enum

Change the floppy drive type to a QAPI enum type, to allow us to
specify the floppy drive type from the CLI in a forthcoming patch.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-4-git-send-email-jsnow@redhat.com

8 years agofdc: reduce number of pick_geometry arguments
John Snow [Fri, 22 Jan 2016 20:50:55 +0000 (15:50 -0500)]
fdc: reduce number of pick_geometry arguments

Modify this function to operate directly on FDrive objects instead of
unpacking and passing all of those parameters manually. Reduces the
complexity in the caller and reduces the number of args to just one.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-3-git-send-email-jsnow@redhat.com

8 years agofdc: move pick_geometry
John Snow [Fri, 22 Jan 2016 20:50:54 +0000 (15:50 -0500)]
fdc: move pick_geometry

Code motion: I want to refactor this function to work with FDrive
directly, so shuffle it below that definition.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-2-git-send-email-jsnow@redhat.com

8 years agoide: Correct the CHS 'cyls_max' limit to be 65535
Shmulik Ladkani [Mon, 25 Jan 2016 19:34:40 +0000 (14:34 -0500)]
ide: Correct the CHS 'cyls_max' limit to be 65535

In b7eb0c9:
  hw/block-common: Factor out fall back to legacy -drive cyls=...
'blkconf_geometry()' was introduced, factoring out CHS limit validation
code that was repeated in ide, scsi, virtio-blk.

The original IDE CHS limit prior b7eb0c9 was 65535,16,255 (as per ATA
CHS addressing).
However the 'cyls_max' argument passed to 'blkconf_geometry' in the
ide_dev_initfn case was accidentally set to 65536 instead of 65535.

Fix, providing the correct 'cyls_max'.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1453112371-29760-1-git-send-email-shmulik.ladkani@ravellosystems.com
Signed-off-by: John Snow <jsnow@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/lalrae/tags/mips-20160125' into staging
Peter Maydell [Mon, 25 Jan 2016 10:42:51 +0000 (10:42 +0000)]
Merge remote-tracking branch 'remotes/lalrae/tags/mips-20160125' into staging

MIPS patches 2016-01-25

Changes:
* fixes and includes clean-up

# gpg: Signature made Mon 25 Jan 2016 09:29:51 GMT using RSA key ID 0B29DA6B
# gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>"

* remotes/lalrae/tags/mips-20160125:
  mips: Clean up includes
  target-mips: Fix ALIGN instruction when bp=0
  target-mips: silence NaNs for cvt.s.d and cvt.d.s
  target-mips/cpu.h: Fix spell error

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agomips: Clean up includes
Peter Maydell [Mon, 18 Jan 2016 17:35:00 +0000 (17:35 +0000)]
mips: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
8 years agotarget-mips: Fix ALIGN instruction when bp=0
Miodrag Dinic [Thu, 3 Dec 2015 15:48:57 +0000 (16:48 +0100)]
target-mips: Fix ALIGN instruction when bp=0

If executing ALIGN with shift count bp=0 within mips64 emulation,
the result of the operation should be sign extended.

Taken from the official documentation (pseudo code) :

ALIGN:
tmp_rt_hi = unsigned_word(GPR[rt]) << (8*bp)
tmp_rs_lo = unsigned_word(GPR[rs]) >> (8*(4-bp))
tmp = tmp_rt_hi || tmp_rt_lo
GPR[rd] = sign_extend.32(tmp)

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
8 years agotarget-mips: silence NaNs for cvt.s.d and cvt.d.s
Aurelien Jarno [Sun, 6 Dec 2015 16:11:49 +0000 (17:11 +0100)]
target-mips: silence NaNs for cvt.s.d and cvt.d.s

cvt.s.d and cvt.d.s are FP operations and thus need to convert input
sNaN into corresponding qNaN. Explicitely use the floatXX_maybe_silence_nan
functions for that as the floatXX_to_floatXX functions do not do that.

Cc: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
8 years agotarget-mips/cpu.h: Fix spell error
Dongxue Zhang [Wed, 25 Nov 2015 12:57:12 +0000 (20:57 +0800)]
target-mips/cpu.h: Fix spell error

CP0IntCtl_IPPC1, the last letter should be 'i', not 'one'.

Signed-off-by: Dongxue Zhang <elta.era@gmail.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
8 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-softfloat-20160122' into...
Peter Maydell [Fri, 22 Jan 2016 15:19:20 +0000 (15:19 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-softfloat-20160122' into staging

softfloat:
 * drop confusing softfloat-only types
 * fix return type of roundAndPackFloat16

# gpg: Signature made Fri 22 Jan 2016 15:15:17 GMT using RSA key ID 14360CDE
# 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>"

* remotes/pmaydell/tags/pull-softfloat-20160122:
  softfloat: fix return type of roundAndPackFloat16
  fpu: Replace uint8 typedef with uint8_t
  fpu: Replace int8 typedef with int8_t
  fpu: Replace uint32 typedef with uint32_t
  fpu: Replace int32 typedef with int32_t
  fpu: Replace uint64 typedef with uint64_t
  fpu: Replace int64 typedef with int64_t

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agosoftfloat: fix return type of roundAndPackFloat16
Aurelien Jarno [Fri, 22 Jan 2016 15:09:21 +0000 (15:09 +0000)]
softfloat: fix return type of roundAndPackFloat16

The roundAndPackFloat16 function should return a float16 value, not a
float32 one. Fix that.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1452700993-6570-1-git-send-email-aurelien@aurel32.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agofpu: Replace uint8 typedef with uint8_t
Peter Maydell [Fri, 22 Jan 2016 15:09:21 +0000 (15:09 +0000)]
fpu: Replace uint8 typedef with uint8_t

Replace the uint8 softfloat-specific typedef with uint8_t.
This change was made with

find include hw fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\buint8\b/uint8_t/g'

together with manual removal of the typedef definition and
manual fixing of more erroneous uses found via test compilation.

It turns out that the only code using this type is an accidental
use where uint8_t was intended anyway...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Message-id: 1452603315-27030-7-git-send-email-peter.maydell@linaro.org

8 years agofpu: Replace int8 typedef with int8_t
Peter Maydell [Fri, 22 Jan 2016 15:09:21 +0000 (15:09 +0000)]
fpu: Replace int8 typedef with int8_t

Replace the int8 softfloat-specific typedef with int8_t.
This change was made with

find include hw fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\bint8\b/int8_t/g'

together with manual removal of the typedef definition, and
manual undoing of various mis-hits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Message-id: 1452603315-27030-6-git-send-email-peter.maydell@linaro.org

8 years agofpu: Replace uint32 typedef with uint32_t
Peter Maydell [Fri, 22 Jan 2016 15:09:21 +0000 (15:09 +0000)]
fpu: Replace uint32 typedef with uint32_t

Replace the uint32 softfloat-specific typedef with uint32_t.
This change was made with

find include hw fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\buint32\b/uint32_t/g'

together with manual removal of the typedef definition,
manual undoing of various mis-hits, and another couple of
fixes found via test compilation.

All the uses in hw/ were using the wrong type by mistake.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Message-id: 1452603315-27030-5-git-send-email-peter.maydell@linaro.org

8 years agofpu: Replace int32 typedef with int32_t
Peter Maydell [Fri, 22 Jan 2016 15:09:21 +0000 (15:09 +0000)]
fpu: Replace int32 typedef with int32_t

Replace the int32 softfloat-specific typedef with int32_t.
This change was made with

find hw include fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\bint32\b/int32_t/g'

together with manual removal of the typedef definition, and
manual undoing of some mis-hits where macro arguments were
being used for token pasting rather than as a type.

The uses in hw/ipmi/ should not have been using this type at all.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Message-id: 1452603315-27030-4-git-send-email-peter.maydell@linaro.org

8 years agofpu: Replace uint64 typedef with uint64_t
Peter Maydell [Fri, 22 Jan 2016 15:09:20 +0000 (15:09 +0000)]
fpu: Replace uint64 typedef with uint64_t

Replace the uint64 softfloat-specific typedef with uint64_t.
This change was made with

find include fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\buint64\b/uint64_t/g'

together with manual removal of the typedef definition, and
manual undoing of some mis-hits where macro arguments were
being used for token pasting rather than as a type.

Note that the target-mips/kvm.c and target-s390x/kvm.c changes are fixing
code that should not have been using the uint64 type in the first place.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Message-id: 1452603315-27030-3-git-send-email-peter.maydell@linaro.org

8 years agofpu: Replace int64 typedef with int64_t
Peter Maydell [Fri, 22 Jan 2016 15:09:20 +0000 (15:09 +0000)]
fpu: Replace int64 typedef with int64_t

Replace the int64 softfloat-specific typedef with int64_t.
This change was made with

find include fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\bint64\b/int64_t/g'

together with manual removal of the typedef definition, and
manual undoing of some mis-hits where macro arguments were
being used for token pasting rather than as a type.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Leon Alrae <leon.alrae@imgtec.com>
Message-id: 1452603315-27030-2-git-send-email-peter.maydell@linaro.org

8 years agoMerge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into staging
Peter Maydell [Fri, 22 Jan 2016 14:44:12 +0000 (14:44 +0000)]
Merge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into staging

fprintf to error_report conversion in hw/9pfs and fsdev

# gpg: Signature made Fri 22 Jan 2016 14:23:15 GMT using DSA key ID 0101DBC2
# gpg: Good signature from "Greg Kurz <gkurz@fr.ibm.com>"
# gpg:                 aka "Greg Kurz <groug@free.fr>"
# gpg:                 aka "Greg Kurz <gkurz@linux.vnet.ibm.com>"
# gpg:                 aka "Gregory Kurz (Groug) <groug@free.fr>"
# gpg:                 aka "Gregory Kurz (Cimai Technology) <gkurz@cimai.com>"
# gpg:                 aka "Gregory Kurz (Meiosys Technology) <gkurz@meiosys.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2BD4 3B44 535E C0A7 9894  DBA2 02FC 3AEB 0101 DBC2

* remotes/gkurz/tags/for-upstream:
  fsdev: use error_report() instead of fprintf(stderr)
  9pfs: use error_report() instead of fprintf(stderr)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agofsdev: use error_report() instead of fprintf(stderr)
Greg Kurz [Fri, 22 Jan 2016 14:12:18 +0000 (15:12 +0100)]
fsdev: use error_report() instead of fprintf(stderr)

Only fix the code that gets built into QEMU.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
8 years ago9pfs: use error_report() instead of fprintf(stderr)
Greg Kurz [Fri, 22 Jan 2016 14:12:17 +0000 (15:12 +0100)]
9pfs: use error_report() instead of fprintf(stderr)

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
8 years agoseabios: fix submodule
Gerd Hoffmann [Fri, 22 Jan 2016 10:59:51 +0000 (11:59 +0100)]
seabios: fix submodule

Commit "36f96c4 target-i386: Add support to migrate vcpu's TSC rate"
updates roms/seabios, appearently by mistake.  Revert this.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1453460391-7664-1-git-send-email-kraxel@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/sstabellini/tags/xen-20160121' into staging
Peter Maydell [Thu, 21 Jan 2016 17:21:08 +0000 (17:21 +0000)]
Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20160121' into staging

Xen 2016/01/21

# gpg: Signature made Thu 21 Jan 2016 16:58:50 GMT using RSA key ID 70E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"

* remotes/sstabellini/tags/xen-20160121:
  Xen PCI passthru: convert to realize()
  Add Error **errp for xen_pt_config_init()
  Add Error **errp for xen_pt_setup_vga()
  Add Error **errp for xen_host_pci_device_get()
  Xen: use qemu_strtoul instead of strtol
  Change xen_host_pci_sysfs_path() to return void
  xen-pvdevice: convert to realize()
  xen-hvm: Clean up xen_ram_alloc() error handling
  xen-hvm: Clean up xen_hvm_init() error handling
  xenfb.c: avoid expensive loops when prod <= out_cons
  MAINTAINERS: update Xen files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoXen PCI passthru: convert to realize()
Cao jin [Sun, 17 Jan 2016 12:13:15 +0000 (20:13 +0800)]
Xen PCI passthru: convert to realize()

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoAdd Error **errp for xen_pt_config_init()
Cao jin [Sun, 17 Jan 2016 12:13:14 +0000 (20:13 +0800)]
Add Error **errp for xen_pt_config_init()

To catch the error message. Also modify the caller

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoAdd Error **errp for xen_pt_setup_vga()
Cao jin [Sun, 17 Jan 2016 12:13:13 +0000 (20:13 +0800)]
Add Error **errp for xen_pt_setup_vga()

To catch the error message. Also modify the caller

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoAdd Error **errp for xen_host_pci_device_get()
Cao jin [Sun, 17 Jan 2016 12:13:12 +0000 (20:13 +0800)]
Add Error **errp for xen_host_pci_device_get()

To catch the error message. Also modify the caller

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
8 years agoXen: use qemu_strtoul instead of strtol
Cao jin [Sun, 17 Jan 2016 12:13:11 +0000 (20:13 +0800)]
Xen: use qemu_strtoul instead of strtol

No need to roll our own (with slightly incorrect handling of errno),
when we can use the common version.

Change signed parsing to unsigned, because what it read are values in
PCI config space, which are non-negative.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
8 years agoChange xen_host_pci_sysfs_path() to return void
Cao jin [Sun, 17 Jan 2016 12:13:10 +0000 (20:13 +0800)]
Change xen_host_pci_sysfs_path() to return void

And assert the snprintf() error, because user can do nothing in case of
snprintf() fail.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
Peter Maydell [Thu, 21 Jan 2016 15:53:25 +0000 (15:53 +0000)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

X86 queue, 2016-01-21

# gpg: Signature made Thu 21 Jan 2016 15:08:40 GMT using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"

* remotes/ehabkost/tags/x86-pull-request:
  target-i386: Add PKU and and OSPKE support
  target-i386: Add support to migrate vcpu's TSC rate
  target-i386: Reorganize TSC rate setting code
  target-i386: Fallback vcpu's TSC rate to value returned by KVM
  target-i386: Add suffixes to MMReg struct fields
  target-i386: Define MMREG_UNION macro
  target-i386: Define MMXReg._d field
  target-i386: Rename XMM_[BWLSDQ] helpers to ZMM_*
  target-i386: Rename struct XMMReg to ZMMReg
  target-i386: Use a _q array on MMXReg too
  target-i386/ops_sse.h: Use MMX_Q macro
  target-i386: Rename optimize_flags_init()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoxen-pvdevice: convert to realize()
Cao jin [Tue, 22 Dec 2015 02:43:16 +0000 (10:43 +0800)]
xen-pvdevice: convert to realize()

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
8 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160121' into...
Peter Maydell [Thu, 21 Jan 2016 15:00:39 +0000 (15:00 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160121' into staging

target-arm queue:
 * connect SPI devices in Xilinx Zynq platforms
 * multiple-address-space support
 * use multiple-address-space support for ARM TrustZone
 * arm_gic: return correct ID registers for 11MPCore/v1/v2 GICs
 * various fixes for (currently disabled) AArch64 EL2 and EL3 support
 * add 'always-on' property to the virt board timer DT entry

# gpg: Signature made Thu 21 Jan 2016 14:54:56 GMT using RSA key ID 14360CDE
# 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>"

* remotes/pmaydell/tags/pull-target-arm-20160121: (36 commits)
  target-arm: Implement FPEXC32_EL2 system register
  target-arm: ignore ELR_ELx[1] for exception return to 32-bit ARM mode
  target-arm: Implement remaining illegal return event checks
  target-arm: Handle exception return from AArch64 to non-EL0 AArch32
  target-arm: Fix wrong AArch64 entry offset for EL2/EL3 target
  target-arm: Pull semihosting handling out to arm_cpu_do_interrupt()
  target-arm: Use a single entry point for AArch64 and AArch32 exceptions
  target-arm: Move aarch64_cpu_do_interrupt() to helper.c
  target-arm: Properly support EL2 and EL3 in arm_el_is_aa64()
  arm_gic: Update ID registers based on revision
  hw/arm/virt: Add always-on property to the virt board timer
  hw/arm/virt: add secure memory region and UART
  hw/arm/virt: Wire up memory region to CPUs explicitly
  target-arm: Support multiple address spaces in page table walks
  target-arm: Implement cpu_get_phys_page_attrs_debug
  target-arm: Implement asidx_from_attrs
  target-arm: Add QOM property for Secure memory region
  qom/cpu: Add MemoryRegion property
  memory: Add address_space_init_shareable()
  exec.c: Use correct AddressSpace in watch_mem_read and watch_mem_write
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agotarget-i386: Add PKU and and OSPKE support
Huaitong Han [Wed, 18 Nov 2015 02:20:15 +0000 (10:20 +0800)]
target-i386: Add PKU and and OSPKE support

Add PKU and OSPKE CPUID features, including xsave state and
migration support.

Signed-off-by: Huaitong Han <huaitong.han@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: squashed 3 patches together, edited patch description]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Add support to migrate vcpu's TSC rate
Haozhong Zhang [Tue, 24 Nov 2015 03:33:57 +0000 (11:33 +0800)]
target-i386: Add support to migrate vcpu's TSC rate

This patch enables migrating vcpu's TSC rate. If KVM on the
destination machine supports TSC scaling, guest programs will
observe a consistent TSC rate across the migration.

If TSC scaling is not supported on the destination machine, the
migration will not be aborted and QEMU on the destination will
not set vcpu's TSC rate to the migrated value.

If vcpu's TSC rate specified by CPU option 'tsc-freq' on the
destination machine is inconsistent with the migrated TSC rate,
the migration will be aborted.

For backwards compatibility, the migration of vcpu's TSC rate is
disabled on pc-*-2.5 and older machine types.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: Rewrote comment at kvm_arch_put_registers()]
[ehabkost: Moved compat code to pc-2.5]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Reorganize TSC rate setting code
Haozhong Zhang [Tue, 24 Nov 2015 03:33:56 +0000 (11:33 +0800)]
target-i386: Reorganize TSC rate setting code

Following changes are made to the TSC rate setting code in
kvm_arch_init_vcpu():
 * The code is moved to a new function kvm_arch_set_tsc_khz().
 * If kvm_arch_set_tsc_khz() fails, i.e. following two conditions are
   both satisfied:
   * KVM does not support the TSC scaling or it fails to set vcpu's
     TSC rate by KVM_SET_TSC_KHZ,
   * the TSC rate to be set is different than the value currently used
     by KVM, then kvm_arch_init_vcpu() will fail. Prevously,
   * the lack of TSC scaling never failed kvm_arch_init_vcpu(),
   * the failure of KVM_SET_TSC_KHZ failed kvm_arch_init_vcpu()
     unconditionally, even though the TSC rate to be set is identical
     to the value currently used by KVM.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Fallback vcpu's TSC rate to value returned by KVM
Haozhong Zhang [Tue, 24 Nov 2015 03:33:55 +0000 (11:33 +0800)]
target-i386: Fallback vcpu's TSC rate to value returned by KVM

If no user-specified TSC rate is present, we will try to set
env->tsc_khz to the value returned by KVM_GET_TSC_KHZ. This patch
does not change the current functionality of QEMU and just
prepares for later patches to enable migrating vcpu's TSC rate.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Add suffixes to MMReg struct fields
Eduardo Habkost [Wed, 2 Dec 2015 15:51:54 +0000 (13:51 -0200)]
target-i386: Add suffixes to MMReg struct fields

This will ensure we never use the MMX_* and ZMM_* macros with the
wrong struct type.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Define MMREG_UNION macro
Eduardo Habkost [Wed, 2 Dec 2015 15:51:53 +0000 (13:51 -0200)]
target-i386: Define MMREG_UNION macro

This will simplify the definitions of ZMMReg and MMXReg.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Define MMXReg._d field
Eduardo Habkost [Mon, 30 Nov 2015 17:44:16 +0000 (15:44 -0200)]
target-i386: Define MMXReg._d field

Add a new field and reorder MMXReg fields, to make MMXReg and
ZMMReg field lists look the same (except for the array sizes).

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Rename XMM_[BWLSDQ] helpers to ZMM_*
Eduardo Habkost [Thu, 26 Nov 2015 19:14:32 +0000 (17:14 -0200)]
target-i386: Rename XMM_[BWLSDQ] helpers to ZMM_*

They are helpers for the ZMMReg fields, so name them accordingly.

This is just a global search+replace, no other changes are being
introduced.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Rename struct XMMReg to ZMMReg
Eduardo Habkost [Thu, 19 Nov 2015 18:12:40 +0000 (16:12 -0200)]
target-i386: Rename struct XMMReg to ZMMReg

The struct represents a 512-bit register, so name it accordingly.

This is just a global search+replace, no other changes are being
introduced.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Use a _q array on MMXReg too
Eduardo Habkost [Thu, 19 Nov 2015 18:51:36 +0000 (16:51 -0200)]
target-i386: Use a _q array on MMXReg too

Make MMXReg use the same field names used on XMMReg, so we can
try to reuse macros and other code later.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386/ops_sse.h: Use MMX_Q macro
Eduardo Habkost [Thu, 19 Nov 2015 18:49:14 +0000 (16:49 -0200)]
target-i386/ops_sse.h: Use MMX_Q macro

We have a MMX_Q macro in addition to MMX_{B,W,L}. Use it.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-i386: Rename optimize_flags_init()
Eduardo Habkost [Thu, 5 Mar 2015 15:38:48 +0000 (12:38 -0300)]
target-i386: Rename optimize_flags_init()

Rename the function so that the reason for its existence is
clearer: it does x86-specific initialization of TCG structures.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
8 years agotarget-arm: Implement FPEXC32_EL2 system register
Peter Maydell [Thu, 21 Jan 2016 14:15:09 +0000 (14:15 +0000)]
target-arm: Implement FPEXC32_EL2 system register

The AArch64 FPEXC32_EL2 system register is visible at EL2 and EL3,
and allows those exception levels to read and write the FPEXC
register for a lower exception level that is using AArch32.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1453132414-8127-1-git-send-email-peter.maydell@linaro.org

8 years agotarget-arm: ignore ELR_ELx[1] for exception return to 32-bit ARM mode
Peter Maydell [Thu, 21 Jan 2016 14:15:09 +0000 (14:15 +0000)]
target-arm: ignore ELR_ELx[1] for exception return to 32-bit ARM mode

The architecture requires that for an exception return to AArch32 the
low bits of ELR_ELx are ignored when the PC is set from them:
 * if returning to Thumb mode, ignore ELR_ELx[0]
 * if returning to ARM mode, ignore ELR_ELx[1:0]

We were only squashing bit 0; also squash bit 1 if the SPSR T bit
indicates this is a return to ARM code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Implement remaining illegal return event checks
Peter Maydell [Thu, 21 Jan 2016 14:15:09 +0000 (14:15 +0000)]
target-arm: Implement remaining illegal return event checks

We already implement almost all the checks for the illegal
return events from AArch64 state described in the ARM ARM section
D1.11.2. Add the two missing ones:
 * return to EL2 when EL3 is implemented and SCR_EL3.NS is 0
 * return to Non-secure EL1 when EL2 is implemented and HCR_EL2.TGE is 1

(We don't implement external debug, so the case of "debug state exit
from EL0 using AArch64 state to EL0 using AArch32 state" doesn't apply
for QEMU.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Handle exception return from AArch64 to non-EL0 AArch32
Peter Maydell [Thu, 21 Jan 2016 14:15:09 +0000 (14:15 +0000)]
target-arm: Handle exception return from AArch64 to non-EL0 AArch32

Remove the assumptions that the AArch64 exception return code was
making about a return to AArch32 always being a return to EL0.
This includes pulling out the illegal-SPSR checks so we can apply
them for return to 32 bit as well as return to 64-bit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Fix wrong AArch64 entry offset for EL2/EL3 target
Peter Maydell [Thu, 21 Jan 2016 14:15:08 +0000 (14:15 +0000)]
target-arm: Fix wrong AArch64 entry offset for EL2/EL3 target

The entry offset when taking an exception to AArch64 from a lower
exception level may be 0x400 or 0x600. 0x400 is used if the
implemented exception level immediately lower than the target level
is using AArch64, and 0x600 if it is using AArch32. We were
incorrectly implementing this as checking the exception level
that the exception was taken from. (The two can be different if
for example we take an exception from EL0 to AArch64 EL3; we should
in this case be checking EL2 if EL2 is implemented, and EL1 if
EL2 is not implemented.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Pull semihosting handling out to arm_cpu_do_interrupt()
Peter Maydell [Thu, 21 Jan 2016 14:15:08 +0000 (14:15 +0000)]
target-arm: Pull semihosting handling out to arm_cpu_do_interrupt()

Handling of semihosting calls should depend on the register width
of the calling code, not on that of any higher exception level,
so we need to identify and handle semihosting calls before we
decide whether to deliver the exception as an entry to AArch32
or AArch64. (EXCP_SEMIHOST is also an "internal exception" so
it has no target exception level in the first place.)

This will allow AArch32 EL1 code to use semihosting calls when
running under an AArch64 EL3.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agotarget-arm: Use a single entry point for AArch64 and AArch32 exceptions
Peter Maydell [Thu, 21 Jan 2016 14:15:08 +0000 (14:15 +0000)]
target-arm: Use a single entry point for AArch64 and AArch32 exceptions

If EL2 or EL3 is present on an AArch64 CPU, then exceptions can be
taken to an exception level which is running AArch32 (if only EL0
and EL1 are present then EL1 must be AArch64 and all exceptions are
taken to AArch64). To support this we need to have a single
implementation of the CPU do_interrupt() method which can handle both
32 and 64 bit exception entry.

Pull the common parts of aarch64_cpu_do_interrupt() and
arm_cpu_do_interrupt() out into a new function which calls
either the AArch32 or AArch64 specific entry code once it has
worked out which one is needed.

We temporarily special-case the handling of EXCP_SEMIHOST to
avoid an assertion in arm_el_is_aa64(); the next patch will
pull all the semihosting handling out to the arm_cpu_do_interrupt()
level (since semihosting semantics depend on the register width
of the calling code, not on that of any higher EL).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Move aarch64_cpu_do_interrupt() to helper.c
Peter Maydell [Thu, 21 Jan 2016 14:15:08 +0000 (14:15 +0000)]
target-arm: Move aarch64_cpu_do_interrupt() to helper.c

Move the aarch64_cpu_do_interrupt() function to helper.c. We want
to be able to call this from code that isn't AArch64-only, and
the move allows us to avoid awkward #ifdeffery at the callsite.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Properly support EL2 and EL3 in arm_el_is_aa64()
Peter Maydell [Thu, 21 Jan 2016 14:15:08 +0000 (14:15 +0000)]
target-arm: Properly support EL2 and EL3 in arm_el_is_aa64()

Support EL2 and EL3 in arm_el_is_aa64() by implementing the
logic for checking the SCR_EL3 and HCR_EL2 register-width bits
as appropriate to determine the register width of lower exception
levels.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoarm_gic: Update ID registers based on revision
Alistair Francis [Thu, 21 Jan 2016 14:15:08 +0000 (14:15 +0000)]
arm_gic: Update ID registers based on revision

Update the GIC ID registers (registers above 0xfe0) based on the GIC
revision instead of using the sames values for all GIC implementations.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Message-id: 629e7fa5d47f2800e51cc1f18d12635f1eece349.1453333840.git.alistair.francis@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agohw/arm/virt: Add always-on property to the virt board timer
Christoffer Dall [Thu, 21 Jan 2016 14:15:07 +0000 (14:15 +0000)]
hw/arm/virt: Add always-on property to the virt board timer

The virt board has an arch timer, which is always on.  Emit the
"always-on" property to indicate to Linux that it can switch off the
periodic timer and reduces the amount of interrupts injected into a
guest.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1453204158-11412-1-git-send-email-christoffer.dall@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agohw/arm/virt: add secure memory region and UART
Peter Maydell [Thu, 21 Jan 2016 14:15:07 +0000 (14:15 +0000)]
hw/arm/virt: add secure memory region and UART

Add a secure memory region to the virt board, which is the
same as the nonsecure memory region except that it also has
a secure-only UART in it. This is only created if the
board is started with the '-machine secure=on' property.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agohw/arm/virt: Wire up memory region to CPUs explicitly
Peter Maydell [Thu, 21 Jan 2016 14:15:07 +0000 (14:15 +0000)]
hw/arm/virt: Wire up memory region to CPUs explicitly

Wire up the system memory region to the CPUs explicitly
by setting the QOM property. This doesn't change anything
over letting it default, but will be needed for adding
a secure memory region later.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Support multiple address spaces in page table walks
Peter Maydell [Thu, 21 Jan 2016 14:15:07 +0000 (14:15 +0000)]
target-arm: Support multiple address spaces in page table walks

If we have a secure address space, use it in page table walks:
when doing the physical accesses to read descriptors, make them
through the correct address space.

(The descriptor reads are the only direct physical accesses
made in target-arm/ for CPUs which might have TrustZone.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Implement cpu_get_phys_page_attrs_debug
Peter Maydell [Thu, 21 Jan 2016 14:15:07 +0000 (14:15 +0000)]
target-arm: Implement cpu_get_phys_page_attrs_debug

Implement cpu_get_phys_page_attrs_debug instead of cpu_get_phys_page_debug.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Implement asidx_from_attrs
Peter Maydell [Thu, 21 Jan 2016 14:15:06 +0000 (14:15 +0000)]
target-arm: Implement asidx_from_attrs

Implement the asidx_from_attrs CPU method to return the
Secure or NonSecure address space as appropriate.

(The function is inline so we can use it directly in target-arm
code to be added in later patches.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agotarget-arm: Add QOM property for Secure memory region
Peter Maydell [Thu, 21 Jan 2016 14:15:06 +0000 (14:15 +0000)]
target-arm: Add QOM property for Secure memory region

Add QOM property to the ARM CPU which boards can use to tell us what
memory region to use for secure accesses. Nonsecure accesses
go via the memory region specified with the base CPU class 'memory'
property.

By default, if no secure region is specified it is the same as the
nonsecure region, and if no nonsecure region is specified we will use
address_space_memory.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoqom/cpu: Add MemoryRegion property
Peter Crosthwaite [Thu, 21 Jan 2016 14:15:06 +0000 (14:15 +0000)]
qom/cpu: Add MemoryRegion property

Add a MemoryRegion property, which if set is used to construct
the CPU's initial (default) AddressSpace.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[PMM: code is moved from qom/cpu.c to exec.c to avoid having to
 make qom/cpu.o be a non-common object file; code to use the
 MemoryRegion and to default it to system_memory added.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agomemory: Add address_space_init_shareable()
Peter Crosthwaite [Thu, 21 Jan 2016 14:15:06 +0000 (14:15 +0000)]
memory: Add address_space_init_shareable()

This will either create a new AS or return a pointer to an
already existing equivalent one, if we have already created
an AS for the specified root memory region.

The motivation is to reuse address spaces as much as possible.
It's going to be quite common that bus masters out in device land
have pointers to the same memory region for their mastering yet
each will need to create its own address space. Let the memory
API implement sharing for them.

Aside from the perf optimisations, this should reduce the amount
of redundant output on info mtree as well.

Thee returned value will be malloced, but the malloc will be
automatically freed when the AS runs out of refs.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[PMM: dropped check for NULL root as unused; added doc-comment;
 squashed Peter C's reference-counting patch into this one;
 don't compare name string when deciding if we can share ASes;
 read as->malloced before the unref of as->root to avoid possible
 read-after-free if as->root was the owner of as]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec.c: Use correct AddressSpace in watch_mem_read and watch_mem_write
Peter Maydell [Thu, 21 Jan 2016 14:15:06 +0000 (14:15 +0000)]
exec.c: Use correct AddressSpace in watch_mem_read and watch_mem_write

In the watchpoint access routines watch_mem_read and watch_mem_write,
find the correct AddressSpace to use from current_cpu and the memory
transaction attributes, rather than always assuming address_space_memory.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec.c: Use cpu_get_phys_page_attrs_debug
Peter Maydell [Thu, 21 Jan 2016 14:15:06 +0000 (14:15 +0000)]
exec.c: Use cpu_get_phys_page_attrs_debug

Use cpu_get_phys_page_attrs_debug() when doing virtual-to-physical
conversions in debug related code, so that we can obtain the right
address space index and thus select the correct AddressSpace,
rather than always using cpu->as.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec.c: Add cpu_get_address_space()
Peter Maydell [Thu, 21 Jan 2016 14:15:05 +0000 (14:15 +0000)]
exec.c: Add cpu_get_address_space()

Add a function to return the AddressSpace for a CPU based on
its numerical index. (Callers outside exec.c don't have access
to the CPUAddressSpace struct so can't just fish it out of the
CPUState struct directly.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec.c: Pass MemTxAttrs to iotlb_to_region so it uses the right AS
Peter Maydell [Thu, 21 Jan 2016 14:15:05 +0000 (14:15 +0000)]
exec.c: Pass MemTxAttrs to iotlb_to_region so it uses the right AS

Pass the MemTxAttrs for the memory access to iotlb_to_region(); this
allows it to determine the correct AddressSpace to use for the lookup.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agocputlb.c: Use correct address space when looking up MemoryRegionSection
Peter Maydell [Thu, 21 Jan 2016 14:15:05 +0000 (14:15 +0000)]
cputlb.c: Use correct address space when looking up MemoryRegionSection

When looking up the MemoryRegionSection for the new TLB entry in
tlb_set_page_with_attrs(), use cpu_asidx_from_attrs() to determine
the correct address space index for the lookup, and pass it into
address_space_translate_for_iotlb().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agocpu: Add new asidx_from_attrs() method
Peter Maydell [Thu, 21 Jan 2016 14:15:05 +0000 (14:15 +0000)]
cpu: Add new asidx_from_attrs() method

Add a new method to CPUClass which the memory system core can
use to obtain the correct address space index to use for a memory
access with a given set of transaction attributes, together
with the wrapper function cpu_asidx_from_attrs() which implements
the default behaviour ("always use asidx 0") for CPU classes
which don't provide the method.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agocpu: Add new get_phys_page_attrs_debug() method
Peter Maydell [Thu, 21 Jan 2016 14:15:05 +0000 (14:15 +0000)]
cpu: Add new get_phys_page_attrs_debug() method

Add a new optional method get_phys_page_attrs_debug() to CPUClass.
This is like the existing get_phys_page_debug(), but also returns
the memory transaction attributes to use for the access.
This will be necessary for CPUs which have multiple address
spaces and use the attributes to select the correct address
space.

We provide a wrapper function cpu_get_phys_page_attrs_debug()
which falls back to the existing get_phys_page_debug(), so we
don't need to change every target CPU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec-all.h: Document tlb_set_page_with_attrs, tlb_set_page
Peter Maydell [Thu, 21 Jan 2016 14:15:04 +0000 (14:15 +0000)]
exec-all.h: Document tlb_set_page_with_attrs, tlb_set_page

Add documentation comments for tlb_set_page_with_attrs()
and tlb_set_page().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec.c: Allow target CPUs to define multiple AddressSpaces
Peter Maydell [Thu, 21 Jan 2016 14:15:04 +0000 (14:15 +0000)]
exec.c: Allow target CPUs to define multiple AddressSpaces

Allow multiple calls to cpu_address_space_init(); each
call adds an entry to the cpu->ases array at the specified
index. It is up to the target-specific CPU code to actually use
these extra address spaces.

Since this multiple AddressSpace support won't work with
KVM, add an assertion to avoid confusing failures.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agoexec.c: Don't set cpu->as until cpu_address_space_init
Peter Maydell [Thu, 21 Jan 2016 14:15:04 +0000 (14:15 +0000)]
exec.c: Don't set cpu->as until cpu_address_space_init

Rather than setting cpu->as unconditionally in cpu_exec_init
(and then having target-i386 override this later), don't set
it until the first call to cpu_address_space_init.

This requires us to initialise the address space for
both TCG and KVM (KVM doesn't need the AS listener but
it does require cpu->as to be set).

For target CPUs which don't set up any address spaces (currently
everything except i386), add the default address_space_memory
in qemu_init_vcpu().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
8 years agomisc: zynq-xadc: Fix off-by-one
Peter Crosthwaite [Thu, 21 Jan 2016 14:15:04 +0000 (14:15 +0000)]
misc: zynq-xadc: Fix off-by-one

This bounds check was off-by-one. Fix.

Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1453101737-11255-1-git-send-email-crosthwaite.peter@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoxlnx-ep108: Connect the SPI Flash
Alistair Francis [Thu, 21 Jan 2016 14:15:04 +0000 (14:15 +0000)]
xlnx-ep108: Connect the SPI Flash

Connect the sst25wf080 SPI flash to the EP108 board.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
[PMM: free string when finished with it]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoxlnx-zynqmp: Connect the SPI devices
Alistair Francis [Thu, 21 Jan 2016 14:15:03 +0000 (14:15 +0000)]
xlnx-zynqmp: Connect the SPI devices

Connect the Xilinx SPI devices to the ZynqMP model.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
[ PC changes
 * Use QOM alias for bus connectivity on SoC level
]
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
[PMM: free the g_strdup_printf() string when finished with it]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoxilinx_spips: Separate the state struct into a header
Alistair Francis [Thu, 21 Jan 2016 14:15:03 +0000 (14:15 +0000)]
xilinx_spips: Separate the state struct into a header

Separate out the XilinxSPIPS struct into a separate header
file.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agossi: Move ssi.h into a separate directory
Alistair Francis [Thu, 21 Jan 2016 14:15:03 +0000 (14:15 +0000)]
ssi: Move ssi.h into a separate directory

Move the ssi.h include file into the ssi directory.

While touching the code also fix the typdef lines as
checkpatch complains.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agom25p80.c: Add sst25wf080 SPI flash device
Alistair Francis [Thu, 21 Jan 2016 14:15:03 +0000 (14:15 +0000)]
m25p80.c: Add sst25wf080 SPI flash device

Add the sst25wf080 SPI flash device.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoqdev: get_child_bus(): Use QOM lookup if available
Peter Crosthwaite [Thu, 21 Jan 2016 14:15:03 +0000 (14:15 +0000)]
qdev: get_child_bus(): Use QOM lookup if available

qbus_realize() adds busses as a QOM child of the device in addition to
adding it to the qdev bus list. Change get_child_bus() to use the QOM
child if it is available. This takes priority over the bus-list, but
the child object is checked for type correctness.

This prepares support for aliasing of buses. The use case is SoCs,
where a SoC container needs to present buses to the board level, but
the buses are implemented by controller IP we already model as self
contained qbus-containing devices.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Peter Maydell [Thu, 21 Jan 2016 13:09:47 +0000 (13:09 +0000)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 20 Jan 2016 15:37:57 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  iotests: Test that throttle values ranges
  blockdev: Error out on negative throttling option values
  vmdk: Create streamOptimized as version 3
  qcow2: Make image inaccessible after failed qcow2_invalidate_cache()
  qcow2: Fix BDRV_O_INACTIVE handling in qcow2_invalidate_cache()
  qcow2: Implement .bdrv_inactivate
  block: Inactivate BDS when migration completes
  block: Rename BDRV_O_INCOMING to BDRV_O_INACTIVE
  block: Fix error path in bdrv_invalidate_cache()
  block: Assert no write requests under BDRV_O_INCOMING
  qcow2: Write full header on image creation
  qcow2: Write feature table only for v3 images
  block: Clean up includes
  qemu-iotests: Reduce racy output in 028
  qemu-img: Speed up comparing empty/zero images
  block/raw-posix: avoid bogus fixup for cylinders on DASD disks
  block: Fix .bdrv_open flags

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/berrange/tags/pull-io-next-2016-01-20-1' into...
Peter Maydell [Thu, 21 Jan 2016 12:42:17 +0000 (12:42 +0000)]
Merge remote-tracking branch 'remotes/berrange/tags/pull-io-next-2016-01-20-1' into staging

I/O channels fixes 2016/01/20 v1

# gpg: Signature made Wed 20 Jan 2016 11:31:47 GMT using RSA key ID 15104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>"

* remotes/berrange/tags/pull-io-next-2016-01-20-1:
  io: use memset instead of { 0 } for initializing array
  io: fix description of @errp parameter initialization
  io: some fixes to handling of /dev/null when running commands
  io: increment counter when killing off subcommand
  io: fix sign of errno value passed to error report

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-socket-20160120-1' into staging
Peter Maydell [Thu, 21 Jan 2016 12:09:41 +0000 (12:09 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-socket-20160120-1' into staging

Convert qemu-socket to use QAPI exclusively, update MAINTAINERS.

# gpg: Signature made Wed 20 Jan 2016 06:49:07 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-socket-20160120-1:
  vnc: distiguish between ipv4/ipv6 omitted vs set to off
  sockets: remove use of QemuOpts from socket_dgram
  sockets: remove use of QemuOpts from socket_connect
  sockets: remove use of QemuOpts from socket_listen
  sockets: remove use of QemuOpts from header file
  add MAINTAINERS entry for qemu socket code

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20160119.0' into...
Peter Maydell [Thu, 21 Jan 2016 11:06:11 +0000 (11:06 +0000)]
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20160119.0' into staging

VFIO updates 2016-01-19

 - Performance fix for devices with poorly placed MSI-X PBA regions
 - Quirk fix for hosts with broken MMCONFIG access

# gpg: Signature made Tue 19 Jan 2016 19:00:21 GMT using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"

* remotes/awilliam/tags/vfio-update-20160119.0:
  vfio/pci: Lazy PBA emulation
  vfio/pci-quirks: Only quirk to size of PCI config space

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoiotests: Test that throttle values ranges
Fam Zheng [Wed, 20 Jan 2016 04:21:21 +0000 (12:21 +0800)]
iotests: Test that throttle values ranges

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
8 years agoblockdev: Error out on negative throttling option values
Fam Zheng [Wed, 20 Jan 2016 04:21:20 +0000 (12:21 +0800)]
blockdev: Error out on negative throttling option values

extract_common_blockdev_options() uses qemu_opt_get_number() to parse
the bps/iops numbers to uint64_t, then converts to double and stores in
ThrottleConfig.  The actual parsing is done by strtoull() in
parse_option_number().  Negative numbers are wrapped to large positive
ones, and stored.

We used to reject negative numbers since 7d81c1413c9, but this regressed
when the option parsing code was changed later. Now fix this again.

This time, define an arbitrary large upper limit (1e15),  and check the
values so both negative and impractically big numbers are caught and
reported.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>