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qemu-e2k/hw/core
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David Gibson 9f88a7a3df confidential guest support: Alter virtio default properties for protected guests 
The default behaviour for virtio devices is not to use the platforms normal
DMA paths, but instead to use the fact that it's running in a hypervisor
to directly access guest memory.  That doesn't work if the guest's memory
is protected from hypervisor access, such as with AMD's SEV or POWER's PEF.

So, if a confidential guest mechanism is enabled, then apply the
iommu_platform=on option so it will go through normal DMA mechanisms.
Those will presumably have some way of marking memory as shared with
the hypervisor or hardware so that DMA will work.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
 		2021-02-08 16:57:38 +11:00
..
Kconfig hw/core: Add a config switch for the generic loader device 2019-08-20 09:11:17 +02:00
bus.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
clock-vmstate.c hw/core/clock-vmstate: define a vmstate entry for clock state 2020-04-30 15:35:40 +01:00
clock.c clock: Define and use new clock_display_freq() 2021-01-04 23:24:44 +01:00
cpu.c cpu: move debug_check_watchpoint to tcg_ops 2021-02-05 10:24:14 -10:00
fw-path-provider.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
generic-loader.c make ram_size local to vl.c 2020-12-10 12:15:10 -05:00
hotplug.c call HotplugHandler->plug() as the last step in device realization 2018-10-19 13:44:12 +02:00
irq.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
loader-fit.c hw/mips/boston: Fix Lesser GPL version number 2020-11-03 16:51:13 +01:00
loader.c hw/core/loader.c: Improve reporting of ROM overlap errors 2020-12-15 12:04:30 +00:00
machine-hmp-cmds.c monitor: Add Monitor parameter to monitor_get_cpu_index() 2020-10-09 07:08:19 +02:00
machine-qmp-cmds.c qapi: More complex uses of QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
machine.c confidential guest support: Alter virtio default properties for protected guests 2021-02-08 16:57:38 +11:00
meson.build hw/core: Restrict 'fw-path-provider.c' to system mode emulation 2020-12-15 12:52:07 -05:00
nmi.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
null-machine.c hw/core/null-machine: Do not initialize unused chardev backends 2020-07-10 18:02:16 -04:00
numa.c make ram_size local to vl.c 2020-12-10 12:15:10 -05:00
or-irq.c hw/core/or-irq: Fix incorrect assert forbidding num-lines == MAX_OR_LINES 2020-01-30 16:02:01 +00:00
platform-bus.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
ptimer.c ptimer: Add new ptimer_set_period_from_clock() function 2021-01-29 15:54:42 +00:00
qdev-clock.c hw/core/qdev-clock: add a reference on aliased clocks 2020-10-22 11:53:53 -04:00
qdev-fw.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
qdev-prop-internal.h qdev: Make qdev_propinfo_get_uint16() static 2020-12-15 10:02:07 -05:00
qdev-properties-system.c qdev: Rename qdev_get_prop_ptr() to object_field_prop_ptr() 2020-12-18 15:20:18 -05:00
qdev-properties.c qdev: Avoid unnecessary DeviceState* variable at set_prop_arraylen() 2020-12-18 15:20:18 -05:00
qdev.c machine: introduce MachineInitPhase 2020-12-15 12:51:52 -05:00
register.c hw/core/register.c: Don't use '#' flag of printf format 2020-12-17 21:56:43 -08:00
reset.c qemu/queue.h: leave head structs anonymous unless necessary 2019-01-11 15:46:55 +01:00
resettable.c hw/core: deprecate old reset functions and introduce new ones 2020-01-30 16:02:04 +00:00
split-irq.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
stream.c hw/core/stream: Rename StreamSlave as StreamSink 2020-12-10 12:15:04 -05:00
sysbus.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
trace-events hw/core/clock: trace clock values in Hz instead of ns 2020-10-27 11:10:44 +00:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
uboot_image.h Support u-boot noload images for arm as used by, NetBSD/evbarm GENERIC kernel. 2019-01-07 15:46:20 +00:00
vm-change-state-handler.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
vmstate-if.c vmstate: add qom interface to get id 2020-01-06 18:41:32 +04:00