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c35622387e
qemu-e2k/hw/s390x
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David Hildenbrand c35622387e hw/s390x/s390-skeys: lazy storage key enablement under TCG 
Let's enable storage keys lazily under TCG, just as we do under KVM.
Only fairly old Linux versions actually make use of storage keys, so it
can be kind of wasteful to allocate quite some memory and track
changes and references if nobody cares.

We have to make sure to flush the TLB when enabling storage keys after
the VM was already running: otherwise it might happen that we don't
catch references or modifications afterwards.

Add proper documentation to all callbacks.

The kvm-unit-tests skey tests keeps on working with this change.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210903155514.44772-14-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-09-06 16:24:05 +02:00
..
3270-ccw.c s390x/css: Refactor IRB construction 2021-06-21 08:48:21 +02:00
ap-bridge.c qdev: Drop qbus_set_hotplug_handler() parameter @errp 2020-07-02 06:25:29 +02:00
ap-device.c ap-device: Rename AP_DEVICE_TYPE to TYPE_AP_DEVICE 2020-09-09 13:20:22 -04:00
ccw-device.c hw/s390x/ccw: Register qbus type in abstract TYPE_CCW_DEVICE parent 2021-05-20 14:19:30 +02:00
ccw-device.h hw/s390x/ccw: Register qbus type in abstract TYPE_CCW_DEVICE parent 2021-05-20 14:19:30 +02:00
css-bridge.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
css.c vfio-ccw: forward halt/clear errors 2021-09-06 16:22:54 +02:00
event-facility.c s390/sclp: read sccb from mem based on provided length 2020-10-02 13:52:49 +02:00
ipl.c error: Use error_fatal to simplify obvious fatal errors (again) 2021-08-26 17:15:28 +02:00
ipl.h s390x: Avoid variable size warning in ipl.h 2020-11-10 08:51:30 +01:00
Kconfig kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
meson.build hw/s390x: only build tod-tcg from the CONFIG_TCG build 2021-07-07 14:01:54 +02:00
pv.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
s390-ccw.c s390x/css: Add passthrough IRB 2021-06-21 08:48:21 +02:00
s390-pci-bus.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
s390-pci-inst.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
s390-pci-vfio.c s390x/pci: Add missing initialization for g_autofree variables 2021-03-15 15:47:18 +01:00
s390-skeys-kvm.c hw/s390x/s390-skeys: rename skeys_enabled to skeys_are_enabled 2021-09-06 16:24:05 +02:00
s390-skeys.c hw/s390x/s390-skeys: lazy storage key enablement under TCG 2021-09-06 16:24:05 +02:00
s390-stattrib-kvm.c target/s390x: move kvm files into kvm/ 2021-07-07 14:01:59 +02:00
s390-stattrib.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
s390-virtio-ccw.c hw: Add compat machines for 6.2 2021-09-01 11:08:16 +01:00
s390-virtio-hcall.c
s390-virtio-hcall.h
sclp.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
sclpcpu.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
sclpquiesce.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
tod-kvm.c target/s390x: move kvm files into kvm/ 2021-07-07 14:01:59 +02:00
tod-tcg.c target/s390x: start moving TCG-only code to tcg/ 2021-07-07 14:01:56 +02:00
tod.c hw/s390x: tod: make explicit checks for accelerators when initializing 2021-07-07 14:01:54 +02:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vhost-user-fs-ccw.c virtio: add vhost-user-fs-ccw device 2020-09-23 13:41:58 +01:00
vhost-vsock-ccw.c vhost-vsock-ccw: force virtio version 1 2020-09-29 02:15:24 -04:00
virtio-ccw-9p.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-balloon.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-blk.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-crypto.c virtio: Drop broken and superfluous object_property_set_link() 2020-07-22 07:57:07 -04:00
virtio-ccw-gpu.c modules: add s390x module annotations 2021-07-09 18:20:27 +02:00
virtio-ccw-input.c virtio-ccw-input: fix description 2020-08-27 12:37:03 +02:00
virtio-ccw-net.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-rng.c virtio: Drop broken and superfluous object_property_set_link() 2020-07-22 07:57:07 -04:00
virtio-ccw-scsi.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-serial.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw.c virtio: disable ioeventfd for record/replay 2021-07-02 10:20:13 -04:00
virtio-ccw.h s390x: add have_virtio_ccw 2021-03-26 09:33:50 +01:00