This patch makes use of the hw debugging support in kvm (provided by the guest's
PER facility) on s390. It enables the following features, available using the
gdbserver:
- single-stepping
- hw breakpoints
- hw watchpoints
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This patch allows to insert and remove sw breakpoints using the QEMU gdbserver
on s390 as well as to interrupt execution on a breakpoint hit when running
with KVM enabled.
Whenever a software breakpoint is inserted, common code calls kvm ioctl
KVM_UPDATE_GUEST_DEBUG. As this method's default on s390 is to return an error
if not implement, the insertion will fail. Therefore, KVM also has to be
updated in order to make use of software breakpoints.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
When restoring the previously saved instruction in
kvm_arch_remove_sw_breakpoint(), we only restored one byte. Let's use
the sizeof() operator to make sure we restore the entire instruction.
While we are at it, let's remove the duplicate definitions of DIAG 501
and replace its size (used when reading/writing the instruction) with
a sizeof() operator to make the code self explaining and less error-prone.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Make use of the new s390 adapter irq routing support to enable real
in-kernel irqfds for virtio-ccw with adapter interrupts.
Note that s390 doesn't provide the common KVM_CAP_IRQCHIP capability, but
rather needs KVM_CAP_S390_IRQCHIP to be enabled. This is to ensure backward
compatibility.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Make code using the same indicators point to a single allocated structure
that is freed when the last user goes away.
This will be used by the irqfd code to unmap addresses after the last user
is gone.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Register an I/O adapter interrupt source for when virtio-ccw devices start
using adapter interrupts.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Introduce a common parent class for both cases, where kvm and non-kvm
can hook up callbacks. This will be used by follow-on patches for
adapter registration and mapping.
We now always have a flic, regardless of whether we use kvm; the
non-kvm implementation just doesn't do anything.
Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Commit 40f1ee27aa introduced handy helpers for enable_cap calls on
vcpu and vm level. Unfortunately some older gcc versions (4.7.1, 4.6)
seem to choke on signedness detection in inline created variables:
target-ppc/kvm.c: In function 'kvmppc_booke_watchdog_enable':
target-ppc/kvm.c:1302:21: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
target-ppc/kvm.c: In function 'kvmppc_set_papr':
target-ppc/kvm.c:1504:21: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
However - thanks to Thomas Huth for the suggestion - we can just cast the
offending potentially 0 value to a signed type, making the comparison signed.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* remotes/qmp-unstable/queue/qmp:
qapi: skip redundant includes
monitor: Add netdev_del id argument completion.
monitor: Add netdev_add type argument completion.
monitor: Add set_link arguments completion.
monitor: Add chardev-add backend argument completion.
monitor: Add chardev-remove command completion.
monitor: Convert sendkey to use command_completion.
qapi: Show qapi-commands.py invocation in qapi-code-gen.txt
qapi: Replace uncommon use of the error API by the common one
tests: Don't call visit_end_struct() after visit_start_struct() fails
hw: Don't call visit_end_struct() after visit_start_struct() fails
hmp: Call visit_end_struct() after visit_start_struct() succeeds
qapi: Un-inline visit of implicit struct
qapi-visit.py: Clean up a sloppy use of field prefix
qapi: Clean up shadowing of parameters and locals in inner scopes
qapi-visit.py: Clean up confusing push_indent() / pop_indent() use
qapi: Replace start_optional()/end_optional() by optional()
qapi: Remove unused Visitor callbacks start_handle(), end_handle()
qapi: Normalize marshalling's visitor initialization and cleanup
qapi: Update qapi-code-gen.txt example to match current code
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/bonzini/scsi-next:
[PATCH] block/iscsi: bump year in copyright notice
block/iscsi: allow cluster_size of 4K and greater
block/iscsi: clarify the meaning of ISCSI_CHECKALLOC_THRES
block/iscsi: speed up read for unallocated sectors
block/iscsi: allow fall back to WRITE SAME without UNMAP
MAINTAINERS: mark megasas as maintained
megasas: Add MSI support
megasas: Enable MSI-X support
megasas: Implement LD_LIST_QUERY
scsi: Improve error messages more
scsi-disk: Improve error messager if can't get version number
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The purpose of this change is to help create a json file containing
common definitions; each bit of generated C code must be emitted
only one time.
A second history global to all QAPISchema instances has been added
to detect when a file is included more than one time and skip these
includes.
It does not act as a stack and the changes made to it by the
__init__ function are propagated back to the caller so it's really
a global state.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
With sparc keyboard going directly from QKeyValue to sparc keycodes
this should not be needed any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Nasty 0xe0 logic is gone. We map through QKeyCode now, giving us a
nice, readable mapping table.
Quick smoke test in OpenFirmware looks ok. Careful check from arch
maintainers would be very nice, especially on the capslock and numlock
logic. I'm not fully sure whenever I got it translated correctly and
also what it is supposed to do in the first place ...
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
According to the PS/2 Mouse/Keyboard Protocol, the keyboard outupt buffer size
is 16 bytes. And the PS2_QUEUE_SIZE 256 was introduced in Qemu from the very
beginning.
When I started a redhat5.6 32bit guest, meanwhile tapped the keyboard as quickly as
possible, the screen would show me "i8042.c: No controller found". As a result,
I couldn't use the keyboard in the VNC client.
Previous discussion about the issue in maillist:
http://thread.gmane.org/gmane.comp.emulators.qemu/43294/focus=47180
This patch has been tested on redhat5.6 32-bit/suse11sp3 64-bit guests.
More easy meathod to reproduce:
1.boot a guest with libvirt.
2.connect to VNC client.
3.as you see the BIOS, bootloader, Linux booting, run the follow simply shell script:
for((i=0;i<10000000;i++)) do virsh send-key redhat5.6 KEY_A; done
Actual results:
dmesg show "i8042.c: No controller found." And the keyboard is out of work.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Make it possible to query all net clients without specifying an ID when calling
qemu_find_net_clients_except().
This also adds the add_completion_option() function which is to be used for
other commands completions as well.
Signed-off-by: Hani Benhabiles <hani@linux.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
While there, pare down the shell prompts.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
We commonly use the error API like this:
err = NULL;
foo(..., &err);
if (err) {
goto out;
}
bar(..., &err);
Every error source is checked separately. The second function is only
called when the first one succeeds. Both functions are free to pass
their argument to error_set(). Because error_set() asserts no error
has been set, this effectively means they must not be called with an
error set.
The qapi-generated code uses the error API differently:
// *errp was initialized to NULL somewhere up the call chain
frob(..., errp);
gnat(..., errp);
Errors accumulate in *errp: first error wins, subsequent errors get
dropped. To make this work, the second function does nothing when
called with an error set. Requires non-null errp, or else the second
function can't see the first one fail.
This usage has also bled into visitor tests, and two device model
object property getters rtc_get_date() and balloon_stats_get_all().
With the "accumulate" technique, you need fewer error checks in
callers, and buy that with an error check in every callee. Can be
nice.
However, mixing the two techniques is confusing. You can't use the
"accumulate" technique with functions designed for the "check
separately" technique. You can use the "check separately" technique
with functions designed for the "accumulate" technique, but then
error_set() can't catch you setting an error more than once.
Standardize on the "check separately" technique for now, because it's
overwhelmingly prevalent.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
When visit_start_struct() fails, visit_end_struct() must not be
called. Three out of four visit_type_TestStruct() call it anyway. As
far as I can tell, visit_start_struct() doesn't actually fail there.
Fix them anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
When visit_start_struct() fails, visit_end_struct() must not be
called. rtc_get_date() and balloon_stats_all() call it anyway. As
far as I can tell, they're only used with the string output visitor,
which doesn't care. Fix them anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
When visit_start_struct() succeeds, visit_end_struct() must be called.
hmp_object_add() doesn't when a member visit fails. As far as I can
tell, the opts visitor copes okay with the misuse. Fix it anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
In preparation of error handling changes. Bonus: generates less
duplicated code.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
generate_visit_struct_fields() generates the base type's struct member
name both with and without the field prefix. Harmless, because the
field prefix is always empty there: only unboxed complex members have
a prefix, and those can't have a base type.
Clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
By un-inlining the visit of nested complex types.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Changing implicit indentation in the middle of generating a block
makes following the code being generated unnecessarily hard.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Semantics of end_optional() differ subtly from the other end_FOO()
callbacks: when start_FOO() succeeds, the matching end_FOO() gets
called regardless of what happens in between. end_optional() gets
called only when everything in between succeeds as well. Entirely
undocumented, like all of the visitor API.
The only user of Visitor Callback end_optional() never did anything,
and was removed in commit 9f9ab46.
I'm about to clean up error handling in the generated visitor code,
and end_optional() is in my way. No users mean no test cases, and
making non-trivial cleanup transformations without test cases doesn't
strike me as a good idea.
Drop end_optional(), and rename start_optional() to optional(). We
can always go back to a pair of callbacks when we have an actual need.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
These have never been called or implemented by anything, and their
intended use is undocumented, like all of the visitor API.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Input and output marshalling functions do it differently. Change them
to work the same: initialize the I/O visitor, use it, clean it up,
initialize the dealloc visitor, use it, clean it up.
This delays dealloc visitor initialization in output marshalling
functions, and input visitor cleanup in input marshalling functions.
No functional change, but the latter will be convenient when I change
the error handling.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTdOpIAAoJEK0ScMxN0CebAJUIAKmxOlk39ukPD3hn8Ik1MCr8
byJLcCZrdTzKMAjiovQIAmTmMQ4dba0YI6E+G8H4Z21u74P3fgUbhlt3SHpeMNch
kbfIUJ4PYAar9wze858rD4BANOOMB3qLjkE3LH8WF70S8S7yTc7fsCrDqS0+qG0P
+fFHdoHT1w93O5V07ELI9xCDEeCH7gE6znD0RLAc00SNErDWBCZKIpgT45K0bJmG
1uX8nuUHx6U8TUpjLzwUomJc5o3OeutbF3H2XlVQdzbPbBchkjeHEZ9jv2h2q6bC
e3xVzwBL7IP3vVEMLT6WWkNtI3XO1erDOjzbw/4F6hqpMOFy92Lpmpib8Q2W+S0=
=glsl
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-s390-20140515' into staging
tcg/s390 updates
# gpg: Signature made Thu 15 May 2014 17:24:40 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/pull-tcg-s390-20140515:
tcg-s390: Implement direct chaining of TBs
tcg-s390: Don't force -march=z990
tcg-s390: Improve setcond
tcg-s390: Allow immediate operands to add2 and sub2
tcg-s390: Implement tcg_register_jit
tcg-s390: Use more risbg in the tlb sequence
tcg-s390: Move ldst helpers out of line
tcg-s390: Convert to new ldst opcodes
tcg-s390: Integrate endianness into TCGMemOp
tcg-s390: Convert to TCGMemOp
tcg-s390: Fix off-by-one in wraparound andi
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
looks like a quiet week
minor bugfix in virtio by myself
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTciATAAoJECgfDbjSjVRp2ikH/A6mzwfRU91umcqu820NEIuQ
DrEL/DTeVf24SKw8zQIwZdIJ8+mCUBL7mGabZPqkaHAri7rKmqJmBdzTbPM2YXJt
rt3KXOI/dp7hgSN+mpSyumBOKQita5BZ7/krX75ZvUQrxtFpdzuD/NLSY809XGwo
AVQe5Kegt3E9AiqUKq2het8jKWGFbYKDzJu0TWcnlGNvVQE0Ut9G5NwCxbmR1vgv
cpcTtBBBJZDo9g408JscLS1hESM4z39bA87tqsnjAtoFvbmggYoZL2Oqrtu7abmk
HnkcPTWQVCruvCznDmNlSWYgDLPXoL//coYntxkoVT7TERkgeNANpHGw7hi/q/c=
=P6wK
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio update
looks like a quiet week
minor bugfix in virtio by myself
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 13 May 2014 14:37:23 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
virtio: allow mapping up to max queue size
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=gg8m
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140515' into staging
migration/next for 20140515
# gpg: Signature made Thu 15 May 2014 02:32:25 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140515:
usb: fix up post load checks
migration: show average throughput when migration finishes
savevm: Remove all the unneeded version_minimum_id_old (rest)
savevm: Remove all the unneeded version_minimum_id_old (usb)
Split ram_save_block
arch_init: Simplify code for load_xbzrle()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
While we still require the LONG DISPLACEMENT facility, defaults
have moved on since then. Don't override the system compiler,
whose default may be set to z9-109 or later.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
