We've had a shadowed 'ret' variable, which risks returning the wrong
value, introduced in commit b9c64947.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170710150559.30163-1-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Use the same mask to avoid having to load two different constants.
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This patch fixes setting DExcCode field of CP0 Debug register
when SDBBP instruction is executed. According to EJTAG specification,
this field must be set to the value 9 (Bp).
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-id: 20170502120350.3368.92338.stgit@PASHA-ISP
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Quite a while has passed since we last updated U-Boot for e500. This patch
bumps it to the last released version 2017.07 to make sure users don't feel
like they're using out of date software.
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-id: 1499862868-102130-1-git-send-email-agraf@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add entries to the MAINTAINERS file for the new MPS2
board and devices.
Since the CMSDK devices are not specific to the MPS2 board,
extend the existing 'PrimeCell' section to cover CMSDK
devices as well; in both cases these are devices implemented
by ARM and provided as RTL that may be used in multiple
SoCs and boards.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-10-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The MPS2 FPGA images support ethernet via a LAN9220. We use
QEMU's LAN9118 model, which is software compatible except
that it is missing the checksum-offload feature.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-9-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Implement a model of the Serial Communication Controller (SCC) found
in MPS2 FPGA images.
The primary purpose of this device is to communicate with the
Motherboard Configuration Controller (MCC) which is located on
the MPS board itself, outside the FPGA image. This is used
for programming the MPS clock generators. The SCC also has
some basic ID registers and an output for the board LEDs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1500029487-14822-7-git-send-email-peter.maydell@linaro.org
Implement a model of the simple timer device found in the CMSDK.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1500029487-14822-5-git-send-email-peter.maydell@linaro.org
Add the UARTs to the MPS2 board models.
Unfortunately the details of the wiring of the interrupts through
various OR gates differ between AN511 and AN385 so this can't
be purely a data-driven difference.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1500029487-14822-4-git-send-email-peter.maydell@linaro.org
Implement a model of the simple "APB UART" provided in
the Cortex-M System Design Kit (CMSDK).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-3-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Model the ARM MPS2/MPS2+ FPGA based development board.
The MPS2 and MPS2+ dev boards are FPGA based (the 2+ has a bigger
FPGA but is otherwise the same as the 2). Since the CPU itself
and most of the devices are in the FPGA, the details of the board
as seen by the guest depend significantly on the FPGA image.
We model the following FPGA images:
"mps2_an385" -- Cortex-M3 as documented in ARM Application Note AN385
"mps2_an511" -- Cortex-M3 'DesignStart' as documented in AN511
They are fairly similar but differ in the details for some
peripherals.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-2-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Previously DISAS_JUMP did ensure this but with the optimisation of
8a6b28c7 (optimize indirect branches) we might not leave the loop.
This means if any pending interrupts are cleared by changing IRQ flags
we might never get around to servicing them. You usually notice this
by seeing the lookup_tb_ptr() helper gainfully chaining TBs together
while cpu->interrupt_request remains high and the exit_request has not
been set.
This breaks amongst other things the OPTEE test suite which executes
an eret from the secure world after a non-secure world IRQ has gone
pending which then never gets serviced.
Instead of using the previously implied semantics of DISAS_JUMP we use
DISAS_EXIT which will always exit the run-loop.
CC: Etienne Carriere <etienne.carriere@linaro.org>
CC: Joakim Bech <joakim.bech@linaro.org>
CC: Jaroslaw Pelczar <j.pelczar@samsung.com>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 20170713141928.25419-7-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
While an ISB will ensure any raised IRQs happen on the next
instruction it doesn't cause any to get raised by itself. We can
therefore use a simple tb exit for ISB instructions and rely on the
exit_request check at the top of each TB to deal with exiting if
needed.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 20170713141928.25419-6-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As the gen_goto_tb function can do both static and dynamic jumps it
should also set the is_jmp field. This matches the behaviour of the
a64 code.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 20170713141928.25419-5-alex.bennee@linaro.org
[tweak to multiline comment formatting]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We already have an exit condition, DISAS_UPDATE which will exit the
run-loop. Expand on the difference with DISAS_EXIT in the comments.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 20170713141928.25419-4-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
DISAS_UPDATE should be used when the wider CPU state other than just
the PC has been updated and we should therefore exit the TCG runtime
and return to the main execution loop rather assuming DISAS_JUMP would
do that.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 20170713141928.25419-3-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As a precursor to later patches attempt to come up with a more
concrete wording for what each of the common exit cases would be.
CC: Emilio G. Cota <cota@braap.org>
CC: Richard Henderson <rth@twiddle.net>
CC: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 20170713141928.25419-2-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Cortex-M3 and M4 CPUs always have 8 PMSA MPU regions (this isn't
a configurable option for the hardware). Make the default value of
the pmsav7-dregion property be set per-cpu, so we don't need to have
every user of these CPUs set it manually. (The existing default of
16 is correct for the other PMSAv7 core, the Cortex-R5.)
This fixes a bug where we were creating the M3 and M4 with
too many regions; most guest software would not notice or
care, though, since it would just not use the registers
associated with the unexpected extra regions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1499788408-10096-4-git-send-email-peter.maydell@linaro.org
In some situations it's useful to have a qdev property which doesn't
automatically set its default value when qdev_property_add_static is
called (for instance when the default value is not constant).
Support this by adding a flag to the Property struct indicating
whether to set the default value. This replaces the existing test
for whether the PropertyInfo set_default_value function pointer is
NULL, and we set the .set_default field to true for all those cases
of struct Property which use a PropertyInfo with a non-NULL
set_default_value, so behaviour remains the same as before.
This gives us the semantics of:
* if .set_default is true, then .info->set_default_value must
be not NULL, and .defval is used as the the default value of
the property
* otherwise, the property system does not set any default, and
the field will retain whatever initial value it was given by
the device's .instance_init method
We define two new macros DEFINE_PROP_SIGNED_NODEFAULT and
DEFINE_PROP_UNSIGNED_NODEFAULT, to cover the most plausible use cases
of wanting to set an integer property with no default value.
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1499788408-10096-3-git-send-email-peter.maydell@linaro.org
In DEFINE_PROP_ARRAY, because we use a PropertyInfo (qdev_prop_arraylen)
which has a .set_default_value member we will set the field to a default
value. That default value will be zero, by the C rule that struct
initialization sets unmentioned members to zero if at least one member
is initialized. However it's clearer to state it explicitly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1499788408-10096-2-git-send-email-peter.maydell@linaro.org
Spec said offloads should be le64, so use virtio_ldq_p() to guarantee
valid endian.
Fixes: 644c98587d ("virtio-net: dynamic network offloads configuration")
Cc: qemu-stable@nongnu.org
Cc: Dmitry Fleytman <dfleytma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We have a function that checks if given number is power of two.
We should prefer it instead of expanding the check on our own.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We add the vnet_hdr_support option for filter-rewriter, default is disabled.
If you use virtio-net-pci or other driver needs vnet_hdr, please enable it.
You can use it for example:
-object filter-rewriter,id=rew0,netdev=hn0,queue=all,vnet_hdr_support
We get the vnet_hdr_len from NetClientState that make us
parse net packet correctly.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
COLO-Proxy just focus on packet payload, so we skip vnet header.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Make colo-compare and filter-rewriter can parse vnet packet.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We add the vnet_hdr_support option for colo-compare, default is disabled.
If you use virtio-net-pci or other driver needs vnet_hdr, please enable it.
You can use it for example:
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0,vnet_hdr_support
COLO-compare can get vnet header length from filter,
Add vnet_hdr_len to struct packet and output packet with
the vnet_hdr_len.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This patch change the compare_chr_send() parameter from CharBackend to CompareState,
we can get more information like vnet_hdr(We use it to support packet with vnet_header).
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We can use this property flush and send packet with vnet_hdr_len.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We add the vnet_hdr_support option for filter-redirector, default is disabled.
If you use virtio-net-pci net driver or other driver needs vnet_hdr, please enable it.
Because colo-compare or other modules needs the vnet_hdr_len to parse
packet, we add this new option send the len to others.
You can use it for example:
-object filter-redirector,id=r0,netdev=hn0,queue=tx,outdev=red0,vnet_hdr_support
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We add the vnet_hdr_support option for filter-mirror, default is disabled.
If you use virtio-net-pci or other driver needs vnet_hdr, please enable it.
You can use it for example:
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0,vnet_hdr_support
If it has vnet_hdr_support flag, we will change the sending packet format from
struct {int size; const uint8_t buf[];} to {int size; int vnet_hdr_len; const uint8_t buf[];}.
make other module(like colo-compare) know how to parse net packet correctly.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Commit c5f1ad429c ("block: Remove
bdrv_aio_readv/writev/flush()") removed
bdrv_aio_readv()/bdrv_aio_writev() so the example in the tracing
documentation is no longer valid.
Reported-by: Wang Dong <dongdwdw@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170714133111.27359-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Last patch removed a nesting level in generated code. Re-align all code
generated by backends to be 4-column aligned.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915824586.6295.17820926011082409033.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If an event is dynamically disabled, the TCG code that calls the
execution-time tracer is not generated.
Removes the overheads of execution-time tracers for dynamically disabled
events. As a bonus, also avoids checking the event state when the
execution-time tracer is called from TCG-generated code (since otherwise
TCG would simply not call it).
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915799921.6295.13067154430923434035.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Every vCPU now uses a separate set of TBs for each set of dynamic
tracing event state values. Each set of TBs can be used by any number of
vCPUs to maximize TB reuse when vCPUs have the same tracing state.
This feature is later used by tracetool to optimize tracing of guest
code events.
The maximum number of TB sets is defined as 2^E, where E is the number
of events that have the 'vcpu' property (their state is stored in
CPUState->trace_dstate).
For this to work, a change on the dynamic tracing state of a vCPU will
force it to flush its virtual TB cache (which is only indexed by
address), and fall back to the physical TB cache (which now contains the
vCPU's dynamic tracing state as part of the hashing function).
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915775266.6295.10060144081246467690.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This keeps consistency across all decisions taken during translation
when the dynamic state of a vCPU is changed in the middle of translating
some guest code.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 149915750615.6295.3713699402253529487.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
There's little point in dynamically allocating the bitmap if we
know at compile-time the max number of events we want to support.
Thus, make room in the struct for the bitmap, which will make things
easier later: this paves the way for upcoming changes, in which
we'll use a u32 to fully capture cpu->trace_dstate.
This change also increases performance by saving a dereference and
improving locality--note that this is important since upcoming work
makes reading this bitmap fairly common.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 149915725977.6295.15069969323605305641.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This patch change the filter_send() parameter from CharBackend to MirrorState,
we can get more information like vnet_hdr(We use it to support packet with vnet_header).
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We add a flag to decide whether net_fill_rstate() need read
the vnet_hdr_len or not.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Add vnet_hdr_len arguments in NetClientState
that make other module get real vnet_hdr_len easily.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This pull requests supersedes the one from 2017-07-14. That one had a
couple of subtle regressions: there was a build error for mingw32, and
an instance_size which was theoretically wrong everywhere, but only
actually bit on the Travis OSX build.
There are two major batches in this set, rather than the usual
collection of assorted fixes.
* More DRC cleanup. This gets the state management into a state
which should fix many of the hotplug+migration problems we've
had. Plus it gets the migration stream format into something
well defined and pretty minimal which we can reasonably support
into the future.
* Hashed Page Table resizing. It's been a while since this was
posted, but it's been through several previous rounds of review.
The kernel parts (both guest and host) are merged in 4.11, so
this is the only remaining piece left to allow resizing of the
HPT in a running guest.
There are also a handful of unrelated fixes.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.10-20170717' into staging
ppc patch queue 2017-07-17
This pull requests supersedes the one from 2017-07-14. That one had a
couple of subtle regressions: there was a build error for mingw32, and
an instance_size which was theoretically wrong everywhere, but only
actually bit on the Travis OSX build.
There are two major batches in this set, rather than the usual
collection of assorted fixes.
* More DRC cleanup. This gets the state management into a state
which should fix many of the hotplug+migration problems we've
had. Plus it gets the migration stream format into something
well defined and pretty minimal which we can reasonably support
into the future.
* Hashed Page Table resizing. It's been a while since this was
posted, but it's been through several previous rounds of review.
The kernel parts (both guest and host) are merged in 4.11, so
this is the only remaining piece left to allow resizing of the
HPT in a running guest.
There are also a handful of unrelated fixes.
# gpg: Signature made Mon 17 Jul 2017 07:36:52 BST
# gpg: using RSA key 0x6C38CACA20D9B392
# 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-2.10-20170717: (21 commits)
target/ppc: fix CPU hotplug when radix is enabled (TCG)
spapr: fix memory leak in spapr_core_pre_plug()
pseries: Allow HPT resizing with KVM
pseries: Use smaller default hash page tables when guest can resize
pseries: Enable HPT resizing for 2.10
pseries: Implement HPT resizing
pseries: Stubs for HPT resizing
ppc/pnv: Remove unused XICSState reference
spapr: fix potential memory leak in spapr_core_plug()
spapr: Implement DR-indicator for physical DRCs only
spapr: Remove sPAPRConfigureConnectorState sub-structure
spapr: Consolidate DRC state variables
spapr: Cleanups relating to DRC awaiting_release field
spapr: Refactor spapr_drc_detach()
spapr: Abort on delete failure in spapr_drc_release()
spapr: Simplify unplug path
spapr: Remove 'awaiting_allocation' DRC flag
spapr: Treat devices added before inbound migration as coldplugged
spapr: Minor cleanups to events handling
spapr: migrate pending_events of spapr state
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell