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path: root/hw/s390x/s390-skeys.c
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2016-05-26s390: use FILE instead of QEMUFile for creating text fileDaniel P. Berrange
The s390 skeys monitor command needs to write out a plain text file. Currently it is using the QEMUFile class for this, but work is ongoing to refactor QEMUFile and eliminate much code related to it. The only feature qemu_fopen() gives over fopen() is support for QEMU FD passing, but this can be achieved with qemu_open() + fdopen() too. Switching to regular stdio FILE APIs avoids the need to sprintf via an intermedia buffer which slightly simplifies the code. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <1461751518-12128-2-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-05-19s390x: reorganize CSS bits between cpu.h and other headersPaolo Bonzini
Move cpu_inject_* to the only C file where they are used. Move ioinst.h declarations that need S390CPU to cpu.h, to make ioinst.h independent of cpu.h. Move channel declarations that only need SubchDev from cpu.h to css.h, to make more channel users independent of cpu.h. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-29s390: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1453832250-766-8-git-send-email-peter.maydell@linaro.org
2016-01-27s390x/skeys: Fix instance and class sizeChristian Borntraeger
fix a typo that messes up instance and class size. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-01-13error: Strip trailing '\n' from error string arguments (again)Markus Armbruster
Commit 6daf194d, be62a2eb and 312fd5f got rid of a bunch, but they keep coming back. Tracked down with the Coccinelle semantic patch from commit 312fd5f. Cc: Fam Zheng <famz@redhat.com> Cc: Peter Crosthwaite <crosthwaitepeter@gmail.com> Cc: Bharata B Rao <bharata@linux.vnet.ibm.com> Cc: Dominik Dingel <dingel@linux.vnet.ibm.com> Cc: David Hildenbrand <dahi@linux.vnet.ibm.com> Cc: Jason J. Herne <jjherne@linux.vnet.ibm.com> Cc: Stefan Berger <stefanb@linux.vnet.ibm.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Changchun Ouyang <changchun.ouyang@intel.com> Cc: zhanghailiang <zhang.zhanghailiang@huawei.com> Cc: Pavel Fedin <p.fedin@samsung.com> Signed-off-by: Markus Armbruster <armbru@pond.sub.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Acked-by: Fam Zheng <famz@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1450452927-8346-17-git-send-email-armbru@redhat.com>
2016-01-13error: Use error_report_err() instead of monitor_printf()Markus Armbruster
Both error_report_err() and monitor_printf() print to the same destination when monitor_printf() is used correctly, i.e. within an HMP monitor. Elsewhere, monitor_printf() does nothing, while error_report_err() reports to stderr. Most changed functions are HMP command handlers. These should only run within an HMP monitor. The one exception is bdrv_password_cb(), which should also only run within an HMP monitor. Four command handlers prefix the error message with the command name: balloon, migrate_set_capability, migrate_set_parameter, migrate. Pointless, drop. Unlike monitor_printf(), error_report_err() uses the error whole instead of just its message obtained with error_get_pretty(). This avoids suppressing its hint (see commit 50b7b00). Example: (qemu) device_add ivshmem,id=666 Parameter 'id' expects an identifier Identifiers consist of letters, digits, '-', '.', '_', starting with a letter. Try "help device_add" for more information The "Identifiers consist of..." line is new with this patch. Coccinelle semantic patch: @@ expression M, E; @@ - monitor_printf(M, "%s\n", error_get_pretty(E)); - error_free(E); + error_report_err(E); @r1@ expression M, E; format F; position p; @@ - monitor_printf(M, "...%@F@\n", error_get_pretty(E));@p - error_free(E); + error_report_err(E); @script:python@ p << r1.p; @@ print "%s:%s:%s: prefix dropped" % (p[0].file, p[0].line, p[0].column) Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1450452927-8346-4-git-send-email-armbru@redhat.com>
2015-09-03s390x: Disable storage key migration on old machine typeJason J. Herne
This code disables storage key migration when an older machine type is specified. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-09-03s390x: Migrate guest storage keys (initial memory only)Jason J. Herne
Routines to save/load guest storage keys are provided. register_savevm is called to register them as migration handlers. We prepare the protocol to support more complex parameters. So we will later be able to support standby memory (having empty holes), compression and "state live migration" like done for ram. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-09-03s390x: Info skeys sub-commandJason J. Herne
Provide an info skeys hmp sub-command to allow the end user to dump a storage key for a given address. This is useful for guest operating system developers. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-09-03s390x: Dump-skeys hmp supportJason J. Herne
Add dump-skeys command to the human monitor. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-09-03s390x: Dump storage keys qmp commandJason J. Herne
Provide a dump-skeys qmp command to allow the end user to dump storage keys. This is useful for debugging problems with guest storage key support within Qemu and for guest operating system developers. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-09-03s390x: Create QOM device for s390 storage keysJason J. Herne
A new QOM style device is provided to back guest storage keys. A special version for KVM is created, which handles the storage key access via KVM_S390_GET_SKEYS and KVM_S390_SET_SKEYS ioctl. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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