Commit Graph

60499 Commits (6b892b2f79796989c78d6977e4c906448cda69c0)

Author SHA1 Message Date
Cédric Le Goater 6b892b2f79 timer/aspeed: fix vmstate version id
commit 1d3e65aa7a ("hw/timer: Add value matching support to
aspeed_timer") increased the vmstate version of aspeed.timer because
the state had changed, but it also bumped the version of the
VMSTATE_STRUCT_ARRAY under the aspeed.timerctrl which did not need to.

Change back this version to fix migration.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20180423101433.17759-1-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Peter Maydell a2e9989c96 hw/arm/aspeed_soc: don't use vmstate_register_ram_global for SRAM
Currently we use vmstate_register_ram_global() for the SRAM;
this is not a good idea for devices, because it means that
you can only ever create one instance of the device, as
the second instance would get a RAM block name clash.
Instead, use memory_region_init_ram(), which automatically
registers the RAM block with a local-to-the-device name.

Note that this would be a cross-version migration compatibility break
for the "palmetto-bmc", "ast2500-evb" and "romulus-bmc" machines,
but migration is currently broken for them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20180420124835.7268-4-peter.maydell@linaro.org
2018-04-26 11:04:39 +01:00
Peter Maydell 44cf837d38 hw/arm/aspeed: don't make 'boot_rom' region 'nomigrate'
Currently we use memory_region_init_ram_nomigrate() to create
the "aspeed.boot_rom" memory region, and we don't manually
register it with vmstate_register_ram(). This currently
means that its contents are migrated but as a ram block
whose name is the empty string; in future it may mean they
are not migrated at all. Use memory_region_init_ram() instead.

Note that would be a cross-version migration compatibility break
for the "palmetto-bmc", "ast2500-evb" and "romulus-bmc" machines,
but migration is currently broken for them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20180420124835.7268-3-peter.maydell@linaro.org
2018-04-26 11:04:39 +01:00
Peter Maydell eb7d1f1763 hw/arm/highbank: don't make sysram 'nomigrate'
Currently we use memory_region_init_ram_nomigrate() to create
the "highbank.sysram" memory region, and we don't manually
register it with vmstate_register_ram(). This currently
means that its contents are migrated but as a ram block
whose name is the empty string; in future it may mean they
are not migrated at all. Use memory_region_init_ram() instead.

Note that this is a cross-version migration compatibility
break for the "highbank" and "midway" machines.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180420124835.7268-2-peter.maydell@linaro.org
2018-04-26 11:04:39 +01:00
Peter Maydell b901a17245 hw/arm/raspi: Don't bother setting default_cpu_type
In commit 210f47840d, we changed the bcm2836 SoC object to
always create a CPU of the correct type for that SoC model. This
makes the default_cpu_type settings in the MachineClass structs
for the raspi2 and raspi3 boards redundant. We didn't change
those at the time because it would have meant a temporary
regression in a corner case of error handling if the user
requested a non-existing CPU type. The -cpu parse handling
changes in 2278b93941 mean that it no longer implicitly
depends on default_cpu_type for this to work, so we can now
delete the redundant default_cpu_type fields.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180420155547.9497-1-peter.maydell@linaro.org
2018-04-26 11:04:39 +01:00
Aaron Lindsay e4e91a217c target/arm: Make PMOVSCLR and PMUSERENR 64 bits wide
This is a bug fix to ensure 64-bit reads of these registers don't read
adjacent data.

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Message-id: 1523997485-1905-13-git-send-email-alindsay@codeaurora.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay ac57fd24cd target/arm: Fix bitmask for PMCCFILTR writes
It was shifted to the left one bit too few.

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1523997485-1905-10-git-send-email-alindsay@codeaurora.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay e69ad9df6c target/arm: Allow EL change hooks to do IO
During code generation, surround CPSR writes and exception returns which
call the EL change hooks with gen_io_start/end. The immediate need is
for the PMU to access the clock and icount during EL change to support
mode filtering.

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Message-id: 1523997485-1905-9-git-send-email-alindsay@codeaurora.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay b5c53d1b38 target/arm: Add pre-EL change hooks
Because the design of the PMU requires that the counter values be
converted between their delta and guest-visible forms for mode
filtering, an additional hook which occurs before the EL is changed is
necessary.

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Message-id: 1523997485-1905-8-git-send-email-alindsay@codeaurora.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay 08267487c9 target/arm: Support multiple EL change hooks
Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Message-id: 1523997485-1905-7-git-send-email-alindsay@codeaurora.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay d5a5e4c93d target/arm: Fetch GICv3 state directly from CPUARMState
This eliminates the need for fetching it from el_change_hook_opaque, and
allows for supporting multiple el_change_hooks without having to hack
something together to find the registered opaque belonging to GICv3.

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1523997485-1905-6-git-send-email-alindsay@codeaurora.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay 7ece99b17e target/arm: Mask PMU register writes based on PMCR_EL0.N
This is in preparation for enabling counters other than PMCCNTR

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1523997485-1905-5-git-send-email-alindsay@codeaurora.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay 169c893874 target/arm: Treat PMCCNTR as alias of PMCCNTR_EL0
They share the same underlying state

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1523997485-1905-3-git-send-email-alindsay@codeaurora.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:39 +01:00
Aaron Lindsay ccbc0e3384 target/arm: Check PMCNTEN for whether PMCCNTR is enabled
Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1523997485-1905-2-git-send-email-alindsay@codeaurora.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:38 +01:00
Peter Maydell 4818bad98c target/arm: Use v7m_stack_read() for reading the frame signature
In commit 95695effe8 we changed the v7M/v8M stack
pop code to use a new v7m_stack_read() function that checks
whether the read should fail due to an MPU or bus abort.
We missed one call though, the one which reads the signature
word for the callee-saved register part of the frame.

Correct the omission.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180419142106.9694-1-peter.maydell@linaro.org
2018-04-26 11:04:38 +01:00
Peter Maydell 145772707f target/arm: Remove stale TODO comment
Remove a stale TODO comment -- we have now made the arm_ldl_ptw()
and arm_ldq_ptw() functions propagate physical memory read errors
out to their callers.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180419142151.9862-1-peter.maydell@linaro.org
2018-04-26 11:04:38 +01:00
Igor Mammedov 75ed2c0248 arm: always start from first_cpu when registering loader cpu reset callback
if arm_load_kernel() were passed non first_cpu, QEMU would end up
with partially set do_cpu_reset() callback leaving some CPUs without it.

Make sure that do_cpu_reset() is registered for all CPUs by enumerating
CPUs from first_cpu.

(In practice every board that we have was passing us the first CPU
as the boot CPU, either directly or indirectly, so this wasn't
causing incorrect behaviour.)

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: added a note that this isn't a behaviour change]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:38 +01:00
Geert Uytterhoeven 14ec3cbd7c device_tree: Increase FDT_MAX_SIZE to 1 MiB
It is not uncommon for a contemporary FDT to be larger than 64 KiB,
leading to failures loading the device tree from sysfs:

    qemu-system-aarch64: qemu_fdt_setprop: Couldn't set ...: FDT_ERR_NOSPACE

Hence increase the limit to 1 MiB, like on PPC.

For reference, the largest arm64 DTB created from the Linux sources is
ca. 75 KiB large (100 KiB when built with symbols/fixup support).

Cc: qemu-stable@nongnu.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-id: 1523541337-23919-1-git-send-email-geert+renesas@glider.be
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-26 11:04:38 +01:00
Peter Maydell 4743c23509 Update version for v2.12.0 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-24 16:44:55 +01:00
Peter Maydell 27e757e29c Update version for v2.12.0-rc4 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-17 22:26:44 +01:00
Peter Maydell 6f660996f1 Revert "mux: fix ctrl-a b again"
This reverts commit 1b2503fcf7.

Unfortunately this fix regresses console handling on MIPS Malta;
since the mux ctrl-a b bug is not a regression since 2.11, we
take the conservative approach and just drop it from 2.12.

Reported-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-17 21:11:30 +01:00
Richard Henderson ce8d408205 fpu: Bound increment for scalbn
Without bounding the increment, we can overflow exp either here
in scalbn_decomposed or when adding the bias in round_canonical.
This can result in e.g. underflowing to 0 instead of overflowing
to infinity.

The old softfloat code did bound the increment.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-17 14:52:38 +01:00
Marc-André Lureau 1b2503fcf7 mux: fix ctrl-a b again
Commit fb5e19d2e1 originally fixed the
regression, but was inadvertently broken again in merge commit
2d6752d38d.

Fixes:
https://bugs.launchpad.net/qemu/+bug/1654137

Cc: qemu-stable@nongnu.org
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180416181844.7851-1-marcandre.lureau@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-17 12:52:48 +01:00
Peter Maydell bb3ba35f20 linux-user: check that all of AArch64 SVE extended sigframe is writable
In commit 8c5931de0a we added support for SVE extended
sigframe records.  These mean that the signal frame might now be
larger than the size of the target_rt_sigframe record, so make sure
we call lock_user on the entire frame size when we're creating it.
(The code for restoring the signal frame already correctly handles
the extended records by locking the 'extra' section separately to the
main section.)

In particular, this fixes a bug even for non-SVE signal frames,
because it extends the locked section to cover the
target_rt_frame_record. Previously this was part of 'struct
target_rt_sigframe', but in commit e1eecd1d9d we pulled
it out into its own struct, and so locking the target_rt_sigframe
alone doesn't cover it. This bug would mean that we would fail
to correctly handle the case where a signal was taken with
SP pointing 16 bytes into an unwritable page, with the page
immediately below it in memory being writable.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2018-04-17 12:04:58 +01:00
Peter Maydell 0df2121693 i386: Don't automatically enable FEAT_KVM_HINTS bits
Bug fix for "-cpu host" with newer kernels.
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging

i386: Don't automatically enable FEAT_KVM_HINTS bits

Bug fix for "-cpu host" with newer kernels.

# gpg: Signature made Mon 16 Apr 2018 17:37:53 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-next-pull-request:
  i386: Don't automatically enable FEAT_KVM_HINTS bits

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-17 11:13:47 +01:00
Peter Maydell 32f418c003 vhost: bugfix
This fixes a regression in vhost.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

vhost: bugfix

This fixes a regression in vhost.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 16 Apr 2018 17:12:59 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  vhost: do not verify ring mappings when IOMMU is enabled

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-17 09:57:52 +01:00
Alex Bennée 9cb4e398c2 fpu/softfloat: check for Inf / x or 0 / x before /0
The re-factoring of div_floats changed the order of checking meaning
an operation like -inf/0 erroneously raises the divbyzero flag.
IEEE-754 (2008) specifies this should only occur for operations on
finite operands.

We fix this by moving the check on the dividend being Inf/0 to before
the divisor is zero check.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180416135442.30606-1-alex.bennee@linaro.org
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Tested-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-16 18:40:48 +01:00
Eduardo Habkost 0d914f39a7 i386: Don't automatically enable FEAT_KVM_HINTS bits
The assumption in the cpu->max_features code is that anything
enabled on GET_SUPPORTED_CPUID should be enabled on "-cpu host".
This shouldn't be the case for FEAT_KVM_HINTS.

This adds a new FeatureWordInfo::no_autoenable_flags field, that
can be used to prevent FEAT_KVM_HINTS bits to be enabled
automatically.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180410211534.26079-1-ehabkost@redhat.com>
Tested-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-04-16 13:36:52 -03:00
Jason Wang aebbdbee55 vhost: do not verify ring mappings when IOMMU is enabled
When IOMMU is enabled, we store virtqueue metadata as iova (though it
may has _phys suffix) and access them through dma helpers. Any
translation failures could be reported by IOMMU.

In this case, trying to validate iova against gpa won't work and will
cause a false error reporting. So this patch bypasses the ring
verification if IOMMU is enabled which is similar to the behavior
before 0ca1fd2d68 that calls vhost_memory_map() which is a nop when
IOMMU is enabled.

Fixes: 0ca1fd2d68 ("vhost: Simplify ring verification checks")
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-04-16 19:11:38 +03:00
Michael Tokarev 2a6b5372d7 Makefile: install gtk message catalogs if CONFIG_GTK=y too, not only =m
Fixes 722cd74964

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180416093719.2543-1-mjt@msgid.tls.msk.ru
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-16 16:25:24 +01:00
Peter Maydell 042f6a31af A fix for handling dirty bitmaps stored in qcow2 files. This is not
absolutely necessary for 2.12, but if there is an rc4, it should go in.
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2018-04-16' into staging

A fix for handling dirty bitmaps stored in qcow2 files.  This is not
absolutely necessary for 2.12, but if there is an rc4, it should go in.

# gpg: Signature made Mon 16 Apr 2018 13:35:08 BST
# gpg:                using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2018-04-16:
  iotests: fix 169
  qcow2: try load bitmaps only once

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-16 15:30:54 +01:00
Vladimir Sementsov-Ogievskiy 25bf2426f3 iotests: fix 169
Improve and fix 169:
    - use MIGRATION events instead of RESUME
    - make a TODO: enable dirty-bitmaps capability for offline case
    - recreate vm_b without -incoming near test end

This (likely) fixes racy faults at least of the following types:

    - timeout on waiting for RESUME event
    - sha256 mismatch on line 136 (142 after this patch)
    - fail to self.vm_b.launch() on line 135 (141 now after this patch)

And surely fixes cat processes, left after test finish.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180411122606.367301-3-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-04-16 13:35:32 +02:00
Vladimir Sementsov-Ogievskiy 605bc8be42 qcow2: try load bitmaps only once
Checking reopen by existence of some bitmaps is wrong, as it may be
some other bitmaps, or on the other hand, user may remove bitmaps. This
criteria is bad. To simplify things and make behavior more predictable
let's just add a flag to remember, that we've already tried to load
bitmaps on open and do not want do it again.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180411122606.367301-2-vsementsov@virtuozzo.com
[mreitz: Changed comment wording according to Eric Blake's suggestion]
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-04-16 13:35:32 +02:00
Peter Maydell aac8f55633 linux-user/signal.c: Put AArch64 frame record in the right place
AArch64 stack frames include a 'frame record' which holds a pointer
to the next frame record in the chain and the LR on entry to the
function. The procedure calling standard doesn't mandate where
exactly this frame record is in the stack frame, but for signal
frames the kernel puts it right at the top. We used to put it
there too, but in commit 7f0f4208b3 we accidentally put
the "enlarge to the 4K reserved space minimum" check after the
"allow for the frame record" code, rather than before it, with
the effect that the frame record would be inside the reserved
space and immediately after the last used part of it.

Move the frame record back out of the reserved space to where
we used to put it.

This bug shouldn't break any sensible guest code, but test
programs that deliberately look at the internal details
of the signal frame layout will not find what they are
expecting to see.

Fixes: 7f0f4208b3
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 20180412140222.2096-1-peter.maydell@linaro.org
2018-04-16 11:52:33 +01:00
Peter Maydell 161dfd1e7f tcg/mips: Handle large offsets from target env to tlb_table
The MIPS TCG target makes the assumption that the offset from the
target env pointer to the tlb_table is less than about 64K. This
used to be true, but gradual addition of features to the Arm
target means that it's no longer true there. This results in
the build-time assertion failing:

In file included from /home/pm215/qemu/include/qemu/osdep.h:36:0,
                 from /home/pm215/qemu/tcg/tcg.c:28:
/home/pm215/qemu/tcg/mips/tcg-target.inc.c: In function ‘tcg_out_tlb_load’:
/home/pm215/qemu/include/qemu/compiler.h:90:36: error: static assertion failed: "not expecting: offsetof(CPUArchState, tlb_table[NB_MMU_MODES - 1][1]) > 0x7ff0 + 0x7fff"
 #define QEMU_BUILD_BUG_MSG(x, msg) _Static_assert(!(x), msg)
                                    ^
/home/pm215/qemu/include/qemu/compiler.h:98:30: note: in expansion of macro ‘QEMU_BUILD_BUG_MSG’
 #define QEMU_BUILD_BUG_ON(x) QEMU_BUILD_BUG_MSG(x, "not expecting: " #x)
                              ^
/home/pm215/qemu/tcg/mips/tcg-target.inc.c:1236:9: note: in expansion of macro ‘QEMU_BUILD_BUG_ON’
         QEMU_BUILD_BUG_ON(offsetof(CPUArchState,
         ^
/home/pm215/qemu/rules.mak:66: recipe for target 'tcg/tcg.o' failed

An ideal long term approach would be to rearrange the CPU state
so that the tlb_table was not so far along it, but this is tricky
because it would move it from the "not cleared on CPU reset" part
of the struct to the "cleared on CPU reset" part. As a simple fix
for the 2.12 release, make the MIPS TCG target handle an arbitrary
offset by emitting more add instructions. This will mean an extra
instruction in the fastpath for TCG loads and stores for the
affected guests (currently just aarch64-softmmu).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20180413142336.32163-1-peter.maydell@linaro.org
2018-04-16 11:51:37 +01:00
Peter Maydell ae2b1b4e1b -----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging

# gpg: Signature made Sun 15 Apr 2018 10:45:59 BST
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.12-pull-request:
  m68k: fix exception stack frame for 68000

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-16 10:11:17 +01:00
Alex Bennée 801bc56336 fpu/softfloat: raise float_invalid for NaN/Inf in round_to_int_and_pack
The re-factor broke the raising of INVALID when NaN/Inf is passed to
the float_to_int conversion functions. round_to_uint_and_pack got this
right for NaN but also missed out the Inf handling.

Fixes https://bugs.launchpad.net/qemu/+bug/1759264

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Tested-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180413140334.26622-3-alex.bennee@linaro.org
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-16 10:10:31 +01:00
Pavel Dovgalyuk 000761dc0c m68k: fix exception stack frame for 68000
68000 CPUs do not save format in the exception stack frame.
This patch adds feature checking to prevent format saving for 68000.
m68k_ret() already includes this modification, this patch fixes
the exception processing function too.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180413133041.29509.59064.stgit@pasha-VirtualBox>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-04-15 11:37:58 +02:00
Emilio G. Cota 6245327a36 softfloat: fix {min, max}nummag for same-abs-value inputs
Before 8936006 ("fpu/softfloat: re-factor minmax", 2018-02-21),
we used to return +Zero for maxnummag(-Zero,+Zero); after that
commit, we return -Zero.

Fix it by making {min,max}nummag consistent with {min,max}num,
deferring to the latter when the absolute value of the operands
is the same.

With this fix we now pass fp-test.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180413140334.26622-2-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-13 15:47:53 +01:00
Peter Maydell 38e83a71d0 Update version for v2.12.0-rc3 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-11 19:03:24 +01:00
Peter Maydell 6670b494fd hw/char/cmsdk-apb-uart.c: Correctly clear INTSTATUS bits on writes
The CMSDK APB UART INTSTATUS register bits are all write-one-to-clear.
We were getting this correct for the TXO and RXO bits (which need
special casing because their state lives in the STATE register),
but had forgotten to handle the normal bits for RX and TX which
we do store in our s->intstatus field.

Perform the W1C operation on the bits in s->intstatus too.

Fixes: https://bugs.launchpad.net/qemu/+bug/1760262
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180410134203.17552-1-peter.maydell@linaro.org
2018-04-11 17:00:49 +01:00
Peter Maydell 6523eaca37 Handle read-modify-write i/o with icount
-----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20180411' into staging

Handle read-modify-write i/o with icount

# gpg: Signature made Wed 11 Apr 2018 00:07:23 BST
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20180411:
  icount: fix cpu_restore_state_from_tb for non-tb-exit cases

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-11 14:23:56 +01:00
Peter Maydell 675608cb84 -----BEGIN PGP SIGNATURE-----
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-2.12-pull-request' into staging

# gpg: Signature made Tue 10 Apr 2018 17:00:19 BST
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-2.12-pull-request:
  linux-user: implement HWCAP bits on MIPS
  linux-user: add microblaze/microblazeel magic numbers in qemu-binfmt-conf.sh
  linux-user: fix microblaze get_sp_from_cpustate()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-11 11:21:38 +01:00
Peter Maydell 9d2a090639 Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Tue 10 Apr 2018 15:53:08 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  qemu-iotests: update 185 output
  commit/stream: Reset delay_ns
  qemu-iotests: Remove _supported_fmt dmg
  iotests: blacklist bochs and cloop for 205 and 208
  iotests.py: improve verify_image_format helper
  hw/block/pflash_cfi: fix off-by-one error
  iotests.py: support unsupported_fmts in main()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-11 09:44:32 +01:00
Pavel Dovgalyuk afd46fcad2 icount: fix cpu_restore_state_from_tb for non-tb-exit cases
In icount mode, instructions that access io memory spaces in the middle
of the translation block invoke TB recompilation.  After recompilation,
such instructions become last in the TB and are allowed to access io
memory spaces.

When the code includes instruction like i386 'xchg eax, 0xffffd080'
which accesses APIC, QEMU goes into an infinite loop of the recompilation.

This instruction includes two memory accesses - one read and one write.
After the first access, APIC calls cpu_report_tpr_access, which restores
the CPU state to get the current eip.  But cpu_restore_state_from_tb
resets the cpu->can_do_io flag which makes the second memory access invalid.
Therefore the second memory access causes a recompilation of the block.
Then these operations repeat again and again.

This patch moves resetting cpu->can_do_io flag from
cpu_restore_state_from_tb to cpu_loop_exit* functions.

It also adds a parameter for cpu_restore_state which controls restoring
icount.  There is no need to restore icount when we only query CPU state
without breaking the TB.  Restoring it in such cases leads to the
incorrect flow of the virtual time.

In most cases new parameter is true (icount should be recalculated).
But there are two cases in i386 and openrisc when the CPU state is only
queried without the need to break the TB.  This patch fixes both of
these cases.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <20180409091320.12504.35329.stgit@pasha-VirtualBox>
[rth: Make can_do_io setting unconditional; move from cpu_exec;
make cpu_loop_exit_{noexc,restore} call cpu_loop_exit.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-04-11 09:05:22 +10:00
Peter Maydell ac4ba87ae0 Migration reversion pull for 2.12
One to revert after we decided it needs some more thinking.
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20180410a' into staging

Migration reversion pull for 2.12

One to revert after we decided it needs some more thinking.

# gpg: Signature made Tue 10 Apr 2018 16:02:17 BST
# gpg:                using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20180410a:
  Revert "migration: Don't activate block devices if using -S"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-10 23:42:14 +01:00
Peter Maydell 26d6a7c87b qapi patches for 2018-04-10
- Peter Xu: iotests: fix wait_until_completed()
 - Peter Xu: iothread: workaround glib bug which hangs qmp-test
 - Peter Xu: monitor: bind dispatch bh to iohandler context
 -----BEGIN PGP SIGNATURE-----
 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
 
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Merge remote-tracking branch 'remotes/ericb/tags/pull-qapi-2018-04-10' into staging

qapi patches for 2018-04-10

- Peter Xu: iotests: fix wait_until_completed()
- Peter Xu: iothread: workaround glib bug which hangs qmp-test
- Peter Xu: monitor: bind dispatch bh to iohandler context

# gpg: Signature made Tue 10 Apr 2018 14:15:09 BST
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-qapi-2018-04-10:
  monitor: bind dispatch bh to iohandler context
  iothread: workaround glib bug which hangs qmp-test
  iotests: fix wait_until_completed()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-10 22:16:19 +01:00
James Cowgill 46a1ee4f39 linux-user: implement HWCAP bits on MIPS
Add support for the two currently defined HWCAP bits on MIPS - R6 and
MSA.

Buglink: https://bugs.launchpad.net/qemu/+bug/1754372
Signed-off-by: James Cowgill <james.cowgill@mips.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180315151348.6451-1-james.cowgill@mips.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-04-10 18:00:14 +02:00
Peter Maydell 69550301ec ppc patch queue 2018-04-10
Here's a rather late pull request with a handful of fixes for 2.12.
 These have been blocked for some time, because I wasn't able to
 complete my usual test set due to the SCSI problem fixed in 37c5174
 "scsi-disk: Don't enlarge min_io_size to max_io_size".
 
 Since we're in hard freeze, these are all bugfixes.  Most are also
 regressions, although in one case it's only a "regression" because a
 longstanding bug has been exposed by a new machine type (sam460ex) in
 the testcases.  There are also a couple of sam460ex fixes that aren't
 regressions since the board didn't exist before.  On the flipside
 though, they're low risk because they only touch board specific code
 for a board that doesn't exist in any released version.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180410' into staging

ppc patch queue 2018-04-10

Here's a rather late pull request with a handful of fixes for 2.12.
These have been blocked for some time, because I wasn't able to
complete my usual test set due to the SCSI problem fixed in 37c5174
"scsi-disk: Don't enlarge min_io_size to max_io_size".

Since we're in hard freeze, these are all bugfixes.  Most are also
regressions, although in one case it's only a "regression" because a
longstanding bug has been exposed by a new machine type (sam460ex) in
the testcases.  There are also a couple of sam460ex fixes that aren't
regressions since the board didn't exist before.  On the flipside
though, they're low risk because they only touch board specific code
for a board that doesn't exist in any released version.

# gpg: Signature made Tue 10 Apr 2018 08:13:52 BST
# gpg:                using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.12-20180410:
  roms/u-boot-sam460ex: Change to qemu git mirror and update
  sam460ex: Fix timer frequency and clock multipliers
  tests/boot-serial: Test the sam460ex board
  spapr: Initialize reserved areas list in FDT in H_CAS handler
  target/ppc: Fix backwards migration of msr_mask
  hw/misc/macio: Fix crash when listing device properties of macio device
  target/ppc: Initialize lazy_tlb_flush correctly

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-10 16:58:19 +01:00
Laurent Vivier 947aeab311 linux-user: add microblaze/microblazeel magic numbers in qemu-binfmt-conf.sh
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180409115212.875-2-laurent@vivier.eu>
2018-04-10 17:41:55 +02:00