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Xtensa fixes for 2.2:
- fix entry opcode register window checking and add unit test.
# gpg: Signature made Mon 10 Nov 2014 15:01:47 GMT using RSA key ID F83FA044
# gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>"
# gpg: aka "Max Filippov <jcmvbkbc@gmail.com>"
* remotes/xtensa/tags/20141110-xtensa:
target-xtensa: add entry overflow test
target-xtensa: add missing window check for entry
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Block patches
# gpg: Signature made Mon 10 Nov 2014 09:42:07 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream:
block/vdi: Limit maximum size even futher
qapi: Complete BlkdebugEvent
iotests: Add test for non-existing backing file
block: Propagate error in bdrv_img_create()
qemu-img: Omit error_report() after img_open()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Check that entry instruction raises window overflow exception when
PS.CALLINC points to live registers.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Entry opcode needs to check if moving to new register frame would cause
register window overflow. Entry used in function prologue never
overflows because preceding windowed call* opcode writes return address
to the target register window frame, causing overflow exceptions at the
point of call. But when a sequence of entry opcodes is used for register
window spilling there may not be a call or other opcode that would cause
window check between entries and they would not raise overflow exception
themselves resulting in data corruption.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Several bugfixes for s390x:
- instruction decoding and sparse warning in kvm
- overlong input and hangs in the sclp consoles
# gpg: Signature made Wed 05 Nov 2014 15:42:14 GMT using RSA key ID C6F02FAF
# gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
* remotes/cohuck/tags/s390x-20141105:
s390x/sclpconsole: Avoid hanging SCLP ASCII console
s390x/sclpconsole-lm: Fix hanging SCLP line mode console
s390x/sclpconsole-lm: truncate input if line is too long
s390x/kvm: Fix warning from sparse
s390x/kvm: Fix opcode decoding for eb instruction handler
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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* remotes/lalrae/tags/mips-20141107:
target-mips: fix multiple TCG registers covering same data
mips: Ensure PC update with MTC0 single-stepping
target-mips: fix for missing delay slot in BC1EQZ and BC1NEZ
mips: Set the CP0.Config3.DSP and CP0.Config3.DSP2P bits
mips: Add macros for CP0.Config3 and CP0.Config4 bits
mips: Respect CP0.Status.CU1 for microMIPS FP branches
mips: Remove CONFIG_VT82C686 from non-Fulong configs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Fixes a crash when a virtio-serial port is added without a name to it.
# gpg: Signature made Fri 07 Nov 2014 04:58:05 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg: aka "Amit Shah <amit@kernel.org>"
# gpg: aka "Amit Shah <amitshah@gmx.net>"
* remotes/amit/tags/vser-2.2.0-queue-2:
virtio-serial: avoid crash when port has no name
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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* mreitz/block:
block/vdi: Limit maximum size even futher
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The block layer read and write functions do not like requests which are
bigger than INT_MAX bytes. Since the VDI bmap is read and written in a
single operation, its size is therefore limited accordingly. This
reduces the maximum VDI image size supported by QEMU to half of what it
currently is (down to approximately 512 TB).
The VDI test 084 has to be adapted accordingly. Actually, one could
clearly see that it was broken from the "Could not open
'TEST_DIR/t.IMGFMT': Invalid argument" line for an image which was
supposed to work just fine.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
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Several events were missing from the QAPI enum, add them.
Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Avoid to allocate different TCG registers for the FPU registers
that are mapped on the MSA vectore registers.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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Correct the way PC is updated when single-stepping instructions, by
keeping the old PC only for the BS_EXCP (exception condition) state.
Some MTC0 (and possibly other) instructions switch to the BS_STOP state
to terminate the current translation block, so that the state transition
of the simulated CPU resulting from the CP0 operation takes effect with
the following instruction. This happens with `mtc0 <reg>,c0_config' for
example, typically used to set KSEG0 cacheability.
While single-stepping this has a side-effect of not advancing the PC
past the instruction just executed; subsequent single-step traps will
stop at the same instruction repeatedly. Example:
(gdb) stepi
0x80004d24 in _start ()
5: x/i $pc
=> 0x80004d24 <_start+364>: mfc0 t1,c0_config
(gdb)
0x80004d28 in _start ()
5: x/i $pc
=> 0x80004d28 <_start+368>: li at,-8
(gdb)
0x80004d2c in _start ()
5: x/i $pc
=> 0x80004d2c <_start+372>: and t1,t1,at
(gdb)
0x80004d30 in _start ()
5: x/i $pc
=> 0x80004d30 <_start+376>: ori t1,t1,0x3
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>: mtc0 t1,c0_config
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>: mtc0 t1,c0_config
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>: mtc0 t1,c0_config
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>: mtc0 t1,c0_config
(gdb)
-- oops!
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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New R6 COP1 conditional branches currently don't have delay slot. Fixing this
by setting MIPS_HFLAG_BDS32 flag which is required for branches having 4-byte
delay slot.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
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Set the CP0.Config3.DSP2P bit for the 74kf processor and both that bit
and the CP0.Config3.DSP bit for the artificial mips32r5-generic and
mips64dspr2 processors. They have the DSPr2 ASE enabled in `insn_flags'
and CPUs that implement that ASE need to have both CP0.Config3.DSP and
CP0.Config3.DSP2P set or software won't detect its presence.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
[leon.alrae@imgtec.com: remove DSP flags from mips32r5-generic]
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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Define macros for CP0.Config3 and CP0.Config4 bits. These used to be
exhaustive as at MIPS32r3, but more bits may have been added since.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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Make microMIPS FP branches respect CP0.Status.CU1 and trap with a
Coprocessor Unusable exception if COP1 has been disabled; also trap if
no FPU is present at all.
Standard MIPS FP instruction encodings have a more regular structure and
branches are covered with a single umbrella along other instructions.
This is not the case with the microMIPS encoding, this case has to be
taken care of explicitly here. Code to do so has been copied from the
standard MIPS code handler for OPC_CP1, in `decode_opc'.
Problems arising from this bug will generally only show up on user
context switches in operating systems making use of lazy FP context
switches, such as Linux. It will also more readily trigger if software
FPU emulation is used, either implicitly on a non-float CPU, or forced
on a hard-float CPU such as with the "nofpu" Linux kernel command line
argument.
The problem may have been easily missed because we have no hard-float
microMIPS CPU configuration present; in fact we have no microMIPS CPU
configuration of any kind present.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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Fix the regression introduced with commit
47934d0aadc075b05ce2d9e8a44fa6a46edd1afa [hw: move ISA bridges and
devices to hw/isa/, configure with default-configs/], by removing
CONFIG_VT82C686 from configurations that previously did not enable it.
That southbridge is only available on Fulong platforms (CONFIG_FULONG)
that are exclusively little-endian, 64-bit MIPS. Previously vt82c686.o
was pulled explicitly with obj-$(CONFIG_FULONG).
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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It seems "name" is not mandatory, and the following command line (based
on one generated by current libvirt) will crash qemu at start:
qemu-system-x86_64 \
-device virtio-serial-pci \
-device virtserialport,name=foo \
-device virtconsole
Program received signal SIGSEGV, Segmentation fault.
__strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:210
210 movlpd (%rsi), %xmm2
Missing separate debuginfos, use: debuginfo-install
python-libs-2.7.5-13.fc20.x86_64
(gdb) bt
#0 __strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:210
#1 0x000055555566bdc6 in find_port_by_name (name=0x0) at /home/elmarco/src/qemu/hw/char/virtio-serial-bus.c:67
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
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Test the error message when a COW file is about to be created which is
supposed to inherit the size of its backing file, while the backing file
given does not actually exist.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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If the specified backing file could not be opened, do not generate a new
error message which contains the message which has been generated by
bdrv_open(), but just propagate the latter.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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img_open() already prints an error if the operation failed, so there
should not be another error_report() afterwards.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Force recalculation of file descriptor sets for main loop's poll(),
in order to be able to readd a possibly removed input file descriptor
after can_read() returned 0 (zero).
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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Trigger recalculating sets of file descriptors for the main loop's poll()
in order to make sure a possibly removed FD 0 from the poll() file
descriptor array is re-added. FD 0 is removed from the decriptor array
when the console's can_read() callback returns 0.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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As the SCLP line mode console input length is limited by the available
SCCB buffer space, it might lock up if the input does not fit into the
buffer.
With this patch, characters that don't fit are 'eaten' up to the next
CR/LF and the input line is sent truncated to the guest.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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When running "sparse" with the s390x kvm.c code, it complains that
"constant 0x00400f1d40330000 is so big it is long" - let's fix this
by appending a proper suffix.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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The second byte of the opcode is encoded in the lowest byte of the ipb
field, not the lowest byte of the ipa field.
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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into staging
Patch queue for s390 - 2014-11-05
Two simple bug fixes to enable slightly newer guest kernels
and preliminary -M s390-ccw support for TCG (virtio doesn't work yet!)
# gpg: Signature made Wed 05 Nov 2014 11:01:55 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg: aka "Alexander Graf <alex@csgraf.de>"
* remotes/agraf/tags/signed-s390-for-upstream:
s390x: Implement SAM{24,31,64}
s390x: Fix sclp console input
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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After commit 89b516d8, some logics is turbid and
breaks 'make check' as below errors:
tests/vhost-user-test.c: In function '_cond_wait_until':
tests/vhost-user-test.c:154: error: 'G_TIME_SPAN_SECOND' undeclared (first use in this function)
tests/vhost-user-test.c:154: error: (Each undeclared identifier is reported only once
tests/vhost-user-test.c:154: error: for each function it appears in.)
tests/vhost-user-test.c: In function 'read_guest_mem':
tests/vhost-user-test.c:192: warning: implicit declaration of function 'g_get_monotonic_time'
tests/vhost-user-test.c:192: warning: nested extern declaration of 'g_get_monotonic_time'
tests/vhost-user-test.c:192: error: 'G_TIME_SPAN_SECOND' undeclared (first use in this function)
make: *** [tests/vhost-user-test.o] Error 1
First, vhost-usr-test.c rely on glib-compat.h because
of using G_TIME_SPAN_SECOND [glib < 2.26] and g_get_monotonic_time(),
but vhost-usr-test.c defined QEMU_GLIB_COMPAT_H, which make
glib-compat.h will not be included.
Second, if we remove QEMU_GLIB_COMPAT_H definability in
vhost-usr-test.c, then we will get below warnings:
tests/vhost-user-test.c: In function 'read_guest_mem':
tests/vhost-user-test.c:190: warning: passing argument 1 of 'g_mutex_lock' from incompatible pointer type
tests/vhost-user-test.c:234: warning: passing argument 1 of 'g_mutex_unlock' from incompatible pointer type
That's because glib-compat.h redefine the g_mutex_lock/unlock
function. Those functions' arguments is CompatGMutex/CompatGCond,
but vhost-user-test.c is using GMutex/GCond, which cause the type
is not consistent.
We can rerealize those functions of vhost-user-test.c,
which need a lots of patches. Let's simply address it, and
leave this file alone.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1415149259-6188-1-git-send-email-arei.gonglei@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The SAM instructions simply change 2 bits in PSW.MASK to advertise
the current memory mode. While we can't fully guarantee that 31 bit
mode (or even remotely 24 bit mode) actually work correctly, we don't
check whether lpswe modifies these bits, so we shouldn't keep the
guest from executing SAM instructions either.
This patch implements all SAM instrutions with their actual PSW changing
semantics, making more recent Linux kernels boot properly which do issue
a SAM31 call during early boot.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
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When injecting an sclp console interrupt into the guest, we increase
the PC by 4 for some reason. I have no idea why I put that code there,
but it's clearly wrong. Remove the increment.
This patch fixes sclp serial input for the ccw machine.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
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into staging
Patch queue for ppc - 2014-11-04
Fun things for 2.2:
- e500 virt machine: power off support (needs 3.19 guests)
- e500 virt machine: -device eTSEC support
- new framework to allow dynamic spawning of sysbus devices
- spapr: enable migration of nvram
- new 440x5wDFPU cpu type
- Altivec and other random fixes
# gpg: Signature made Tue 04 Nov 2014 22:26:39 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg: aka "Alexander Graf <alex@csgraf.de>"
* remotes/agraf/tags/signed-ppc-for-upstream: (34 commits)
spapr: Allow dynamic creation of PHB
target-ppc: Fix Altivec Round Opcodes
target-ppc: Fix vcmpbfp. Unordered Case
target-ppc: Fix Altivec Shifts
target-ppc: simplify AES emulation
e500: Add support for eTSEC in device tree
PPC: e500: Support dynamically spawned sysbus devices
sysbus: Add new platform bus helper device
sysbus: Expose MMIO enumeration helper
sysbus: Expose IRQ enumeration helpers
sysbus: Make devices spawnable via -device
sysbus: Add dynamic sysbus device search
hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)
ppc: do not look at the MMU index to detect PR/HV mode
target-ppc: kvm: Fix memory overflow issue about strncat()
spapr_nvram: Enable migration
PPC: E500: Hook up power off GPIO to GPIO controller
PPC: E500: Instantiate MPC8XXX gpio controller on virt machine
PPC: Add MPC8XXX gpio controller
target-ppc: Fix an invalid free in opcode table handling code.
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Now that we finally check for presence of dangling sysbus devices, make check
started complaining that the sPAPR PHB is one such device.
However, it really isn't. The spapr PHB is not really a traditional sysbus
device, but much more a special spapr pv device which is already able to get
created dynamically.
Move spapr to its own dynamic sysbus check handling and allow PHB devices to
get allocated dynamically.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Correct the opcodes for the vrfim, vrfin and vrfiz instructions.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Fix the implementation of Vector Compare Bounds Single Precision.
Specifically, fix the case where the operands are unordered -- since
the result is non-zero, the CR[6] field should be set to zero.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Fix the implementation of the Altivec shift left and shift right
instructions (vsl, vsr) which erroneously inverts shift direction
on big endian hosts.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch simplifies the AES code, by directly accessing the newly added
S-Box, InvS-Box tables instead of recreating them by using the AES_Te and
AES_Td tables.
Cc: Alexander Graf <agraf@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch adds support to expose eTSEC devices in the dynamically created
guest facing device tree. This allows us to expose eTSEC devices into guests
without changes in the machine file.
Because we can now tell the guest about eTSEC devices this patch allows the
user to specify eTSEC devices via -device at all.
Signed-off-by: Alexander Graf <agraf@suse.de>
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For e500 our approach to supporting dynamically spawned sysbus devices is to
create a simple bus from the guest's point of view within which we map those
devices dynamically.
We allocate memory regions always within the "platform" hole in address
space and map IRQs to predetermined IRQ lines that are reserved for platform
device usage.
This maps really nicely into device tree logic, so we can just tell the
guest about our virtual simple bus in device tree as well.
Signed-off-by: Alexander Graf <agraf@suse.de>
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We need to support spawning of sysbus devices dynamically via the command line.
The easiest way to represent these dynamically spawned devices in the guest's
memory and IRQ layout is by preallocating some space for dynamic sysbus devices.
This is what the "platform bus" device does. It is a sysbus device that exports
a configurably sized MMIO region and a configurable number of IRQ lines. When
this device encounters sysbus devices that have been dynamically created and not
manually wired up, it dynamically connects them to its own pool of resources.
The machine model can then loop through all of these devices and create a guest
configuration (device tree) to make them visible to the guest.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Sysbus devices have a range of MMIO regions they expose. The exact number
of regions is device specific and internal information to the device model.
Expose whether a region exists via a public interface. That way our platform
bus enumeration code can dynamically determine how many regions exist.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Sysbus devices can get their IRQ lines connected to other devices. It is
possible to figure out which IRQ line a connection is on and whether a sysbus
device even provides an IRQ connector at a specific offset.
This patch exposes helpers to make this information publicly accessible. We
will need it for the platform bus dynamic sysbus enumeration.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Now that we can properly map sysbus devices that haven't been connected to
something forcefully by C code, we can allow the -device command line option
to spawn them.
For machines that don't implement dynamic sysbus assignment in their board
files we add a new bool "has_dynamic_sysbus" to the machine class.
When that property is false (default), we bail out when we see dynamically
spawned sysbus devices, like we did before.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Sysbus devices can be spawned by C code or dynamically via the command line.
In the latter case, we need to be able to find the dynamically created devices
to do things with them.
This patch adds a search helper that makes it easy to look for dynamically
spawned sysbus devices.
Signed-off-by: Alexander Graf <agraf@suse.de>
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The g_hash_table_iter_* functions for iterating through a hash table
are not present in glib 2.12, which is our current minimum requirement.
Rewrite the code to use g_hash_table_foreach() instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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The MMU index is an internal detail that should not be needed by the
translator (except to generate loads and stores). Look at the MSR
directly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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strncat() will append additional '\0' to destination buffer, so need
additional 1 byte for it, or may cause memory overflow, just like other
area within QEMU have done.
And can use g_strdup_printf() instead of strncat(), which may be more
easier understanding.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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The only case when sPAPR NVRAM migrates now is if is backed by a file and
copy-storage migration is performed. In other cases NVRAM does not
migrate regardless whether it is backed by a file or not.
This enables shadow copy of NVRAM in RAM which is read from a file
(if used) and used for reads. Writes to NVRAM are mirrored to the file.
This defines a VMSTATE descriptor for NVRAM device so the memory copy
of NVRAM can migrate and be flushed to a backing file on the destination
if one is specified.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Now that we have a working GPIO controller on the virt machine, we can use
one pin to notify QEMU that the guests wants to power off the system.
Signed-off-by: Alexander Graf <agraf@suse.de>
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With the e500 virt machine, we don't have to adhere to the exact hardware
layout of an mpc8544ds board. So there we can just add a qoriq compatible
GPIO controller into the system that we can add a power off hook to.
Signed-off-by: Alexander Graf <agraf@suse.de>
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