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4d9392be6c
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Thomas Huth 4d9392be6c ppc/spapr: Implement H_RANDOM hypercall in QEMU 
The PAPR interface defines a hypercall to pass high-quality
hardware generated random numbers to guests. Recent kernels can
already provide this hypercall to the guest if the right hardware
random number generator is available. But in case the user wants
to use another source like EGD, or QEMU is running with an older
kernel, we should also have this call in QEMU, so that guests that
do not support virtio-rng yet can get good random numbers, too.

This patch now adds a new pseudo-device to QEMU that either
directly provides this hypercall to the guest or is able to
enable the in-kernel hypercall if available. The in-kernel
hypercall can be enabled with the use-kvm property, e.g.:

 qemu-system-ppc64 -device spapr-rng,use-kvm=true

For handling the hypercall in QEMU instead, a "RngBackend" is
required since the hypercall should provide "good" random data
instead of pseudo-random (like from a "simple" library function
like rand() or g_random_int()). Since there are multiple RngBackends
available, the user must select an appropriate back-end via the
"rng" property of the device, e.g.:

 qemu-system-ppc64 -object rng-random,filename=/dev/hwrng,id=gid0 \
                   -device spapr-rng,rng=gid0 ...

See http://wiki.qemu-project.org/Features-Done/VirtIORNG for
other example of specifying RngBackends.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
audio ossaudio: fix memory leak 2015-07-08 13:11:01 +02:00
backends qemu-char: Use g_new() & friends where that makes obvious sense 2015-09-16 17:33:33 +02:00
block Block layer patches (v2) 2015-09-14 18:51:09 +01:00
bsd-user * Support for jemalloc 2015-09-14 16:13:16 +01:00
crypto crypto: introduce new module for handling TLS sessions 2015-09-15 15:07:43 +01:00
default-configs spapr: Initialize hotplug memory address space 2015-09-23 10:51:10 +10:00
disas typofixes - v4 2015-09-11 10:45:43 +03:00
docs spapr: Support ibm,dynamic-reconfiguration-memory 2015-09-23 10:51:10 +10:00
dtc@65cc4d2748 dtc: Update dtc / libfdt submodule to version 1.4.0 2015-06-03 23:56:49 +02:00
fpu target-s390x: define default NaN values 2015-06-05 01:37:58 +02:00
fsdev maint: remove unused include for dirent.h 2015-09-11 10:21:38 +03:00
gdb-xml s390x/gdb: support reading/writing of control registers 2015-09-07 16:10:43 +02:00
hw ppc/spapr: Implement H_RANDOM hypercall in QEMU 2015-09-23 10:51:11 +10:00
include ppc/spapr: Implement H_RANDOM hypercall in QEMU 2015-09-23 10:51:11 +10:00
libcacard typofixes - v4 2015-09-11 10:45:43 +03:00
libdecnumber typofixes - v4 2015-09-11 10:45:43 +03:00
linux-headers target-i386: move asm-x86/hyperv.h to standard-headers 2015-09-16 17:33:32 +02:00
linux-user target-ppc: Fix SRR0 when taking unaligned exceptions 2015-09-20 22:48:39 +02:00
migration maint: avoid useless "if (foo) free(foo)" pattern 2015-09-11 10:21:38 +03:00
net trivial: remove trailing newline from error_report 2015-09-11 10:21:38 +03:00
pc-bios pseries: Update SLOF firmware image to qemu-slof-20150813 2015-09-23 10:51:09 +10:00
pixman@87eea99e44
po Update language files for QEMU 2.4.0 2015-09-11 10:21:38 +03:00
qapi qapi-introspect: Hide type names 2015-09-21 09:56:49 +02:00
qga typofixes - v4 2015-09-11 10:45:43 +03:00
qobject Include qapi/qmp/qerror.h exactly where needed 2015-06-22 18:20:41 +02:00
qom qom: Fix invalid error check in property_get_str() 2015-09-19 08:10:12 +02:00
roms pseries: Update SLOF firmware image to qemu-slof-20150813 2015-09-23 10:51:09 +10:00
scripts qapi-introspect: Hide type names 2015-09-21 09:56:49 +02:00
slirp qerror: Move #include out of qerror.h 2015-06-22 18:20:40 +02:00
stubs monitor: remove target-specific code from monitor.c 2015-09-16 17:33:32 +02:00
target-alpha tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-arm target-arm: Use new revbit functions 2015-09-15 07:45:33 -07:00
target-cris target-cris: update CPU state save/load to use VMStateDescription 2015-09-17 14:31:38 +01:00
target-i386 * Linux header update and cleanup 2015-09-16 18:06:54 +01:00
target-lm32 tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-m68k tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-microblaze tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-mips target-mips: improve exception handling 2015-09-18 12:07:24 +01:00
target-moxie tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-openrisc tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-ppc ppc/spapr: Implement H_RANDOM hypercall in QEMU 2015-09-23 10:51:11 +10:00
target-s390x * Support for jemalloc 2015-09-14 16:13:16 +01:00
target-sh4 monitor: remove target-specific code from monitor.c 2015-09-16 17:33:32 +02:00
target-sparc monitor: remove target-specific code from monitor.c 2015-09-16 17:33:32 +02:00
target-tilegx target-tilegx: Handle v1shl, v1shru, v1shrs 2015-09-15 07:45:34 -07:00
target-tricore tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-unicore32 tlb: Add "ifetch" argument to cpu_mmu_index() 2015-09-11 08:15:28 -07:00
target-xtensa monitor: remove target-specific code from monitor.c 2015-09-16 17:33:32 +02:00
tcg tcg/mips: pass oi to tcg_out_tlb_load 2015-09-19 11:53:15 +02:00
tests qapi: New QMP command query-qmp-schema for QMP introspection 2015-09-21 09:56:49 +02:00
trace
ui spice: surface switch fast path requires same format too. 2015-09-21 09:52:07 +02:00
util error: New error_fatal 2015-09-18 14:38:08 +02:00
.exrc
.gitignore qapi: New QMP command query-qmp-schema for QMP introspection 2015-09-21 09:56:49 +02:00
.gitmodules
.mailmap
.travis.yml
accel.c
aio-posix.c AioContext: optimize clearing the EventNotifier 2015-07-22 12:41:40 +01:00
aio-win32.c AioContext: optimize clearing the EventNotifier 2015-07-22 12:41:40 +01:00
arch_init.c smbios: move smbios code into a common folder 2015-08-13 14:08:30 +03:00
async.c AioContext: force event loop iteration using BH 2015-07-29 10:02:06 +01:00
balloon.c Include monitor/monitor.h exactly where needed 2015-06-22 18:20:41 +02:00
block.c block: Allow specifying driver-specific options to reopen 2015-09-14 16:51:36 +02:00
blockdev-nbd.c Include monitor/monitor.h exactly where needed 2015-06-22 18:20:41 +02:00
blockdev.c block: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +02:00
blockjob.c blockjob: add block_job_release function 2015-07-07 14:27:14 +01:00
bootdevice.c
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE CODING_STYLE: update mixed declaration rules 2015-09-09 15:34:54 +02:00
configure TileGX basic instructions 2015-09-15 17:24:28 +01:00
COPYING
COPYING.LIB
coroutine-gthread.c
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c
cpu-exec-common.c cpu-exec: Migrate some generic fns to cpu-exec-common 2015-09-16 17:33:33 +02:00
cpu-exec.c cpu-exec: Migrate some generic fns to cpu-exec-common 2015-09-16 17:33:33 +02:00
cpus.c cpus: remove tcg_halt_cond and tcg_cpu_thread globals 2015-09-09 15:34:55 +02:00
cputlb.c cputlb: Change tlb_set_dirty() arg to cpu 2015-09-16 17:33:33 +02:00
device_tree.c device_tree: Fix a typo 2015-07-27 22:44:47 +03:00
device-hotplug.c
disas.c disas: Defeature print_target_address 2015-08-14 23:40:32 +02:00
dma-helpers.c range: remove useless inclusions 2015-04-30 16:05:48 +03:00
dump.c Include qapi/qmp/qerror.h exactly where needed 2015-06-22 18:20:41 +02:00
exec.c include/exec: Move cputlb exec.c defs out 2015-09-16 17:33:33 +02:00
gdbstub.c * Support for jemalloc 2015-09-14 16:13:16 +01:00
HACKING
hmp-commands-info.hx hmp: Restore "info pci" 2015-09-22 11:32:37 +02:00
hmp-commands.hx monitor: allow device_del to accept QOM paths 2015-09-22 11:31:56 +02:00
hmp.c hmp: add info iothreads command 2015-09-04 13:26:26 +02:00
hmp.h hmp: add info iothreads command 2015-09-04 13:26:26 +02:00
iohandler.c iohandler: Use aio API 2015-09-07 18:14:03 +02:00
ioport.c - miscellaneous cleanups for TCG (Emilio) and NBD (Bogdan) 2015-04-30 12:04:11 +01:00
iothread.c rcu: actually register threads that have RCU read-side critical sections 2015-07-24 13:57:45 +02:00
kvm-all.c kvm: Add kvm system event crash handler 2015-09-16 17:33:32 +02:00
kvm-stub.c kvm: some fixes to kvm_resamplefds_allowed 2015-07-06 12:15:14 -06:00
LICENSE
main-loop.c iohandler: Use aio API 2015-09-07 18:14:03 +02:00
MAINTAINERS MAINTAINERS: Add "Error reporting" entry 2015-09-18 14:34:39 +02:00
Makefile qapi: New QMP command query-qmp-schema for QMP introspection 2015-09-21 09:56:49 +02:00
Makefile.objs qapi: New QMP command query-qmp-schema for QMP introspection 2015-09-21 09:56:49 +02:00
Makefile.target * Linux header update and cleanup 2015-09-16 18:06:54 +01:00
memory_mapping.c memory_mapping: Rework cpu related includes 2015-06-26 16:00:50 +02:00
memory.c memory: Fix bad error handling in memory_region_init_ram_ptr() 2015-09-18 14:39:39 +02:00
module-common.c
monitor.c qapi: New QMP command query-qmp-schema for QMP introspection 2015-09-21 09:56:49 +02:00
nbd.c nbd: release exp->blk after all clients are closed 2015-09-16 17:33:33 +02:00
numa.c Fix bad error handling after memory_region_init_ram() 2015-09-18 14:39:29 +02:00
os-posix.c
os-win32.c maint: remove unused include for signal.h 2015-09-11 10:21:38 +03:00
page_cache.c maint: remove unused include for strings.h 2015-09-11 10:21:38 +03:00
qapi-schema.json monitor: allow device_del to accept QOM paths 2015-09-22 11:31:56 +02:00
qdev-monitor.c monitor: allow device_del to accept QOM paths 2015-09-22 11:31:56 +02:00
qdict-test-data.txt
qemu-bridge-helper.c
qemu-char.c qemu-char: Use g_new() & friends where that makes obvious sense 2015-09-16 17:33:33 +02:00
qemu-coroutine-io.c
qemu-coroutine-lock.c coroutine: remove unnecessary parentheses in qemu_co_queue_empty 2015-04-30 16:05:49 +03:00
qemu-coroutine-sleep.c
qemu-coroutine.c
qemu-doc.texi monitor: added generation of documentation for hmp-commands-info.hx 2015-09-16 17:33:33 +02:00
qemu-ga.texi qga: start a man page 2015-09-01 13:16:26 -05:00
qemu-img-cmds.hx
qemu-img.c qemu-img: Fix crash in amend invocation 2015-09-04 20:59:48 +02:00
qemu-img.texi maint: remove / fix many doubled words 2015-09-11 10:21:38 +03:00
qemu-io-cmds.c qemu-io: Add command 'reopen' 2015-09-14 16:51:36 +02:00
qemu-io.c qemu-io: Remove duplicate 'open' error message 2015-09-14 16:51:36 +02:00
qemu-log.c
qemu-nbd.c Trivial: fix commandline help message 2015-09-11 10:21:38 +03:00
qemu-nbd.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx ui: convert VNC server to use QCryptoTLSSession 2015-09-15 15:20:55 +01:00
qemu-seccomp.c
qemu-tech.texi qemu-doc: fix typos 2015-07-24 13:57:45 +02:00
qemu-timer.c qemu-timer: initialize "timers_done_ev" to set 2015-07-22 12:41:32 +01:00
qemu.nsi
qemu.sasl
qjson.c QJSON: Use OBJECT_CHECK 2015-05-11 08:59:07 -04:00
qmp-commands.hx monitor: allow device_del to accept QOM paths 2015-09-22 11:31:56 +02:00
qmp.c qom: Don't use 'gen': false for qom-get, qom-set, object-add 2015-09-21 09:56:49 +02:00
qtest.c qtest: pre-buffer hex nibs 2015-05-22 15:58:22 -04:00
README
rules.mak make: load only required dependency files. 2015-08-13 14:08:25 +03:00
softmmu_template.h softmmu: remove now unused functions 2015-09-11 08:16:05 -07:00
spice-qemu-char.c spice: fix spice_chr_add_watch() pre-condition 2015-05-29 09:56:01 +02:00
tcg-runtime.c
tci.c tcg: Move tci_tb_ptr to -common 2015-09-16 17:33:33 +02:00
thread-pool.c thread-pool: clean up thread_pool_completion_bh() 2015-04-28 15:36:09 +02:00
thunk.c linux-user: Allocate thunk size dynamically 2015-06-15 11:36:58 +03:00
tpm.c Include monitor/monitor.h exactly where needed 2015-06-22 18:20:41 +02:00
trace-events Merge vnc-crypto-v9 2015-09-15 15:42:58 +01:00
translate-all.c translate: move real_host_page setting to -common 2015-09-16 17:33:33 +02:00
translate-all.h translate-all: remove unnecessary argument to tb_invalidate_phys_range 2015-06-05 17:09:59 +02:00
translate-common.c translate: move real_host_page setting to -common 2015-09-16 17:33:33 +02:00
user-exec.c osdep.h: Remove qemu_printf 2015-08-19 16:29:53 +01:00
VERSION Open 2.5 development tree 2015-08-11 23:15:55 +01:00
version.rc
vl.c machine: Eliminate QEMUMachine and qemu_register_machine() 2015-09-19 16:40:30 +02:00
xen-common-stub.c
xen-common.c migration: Fix regression for xenfv and pc,accel=xen machine. 2015-08-03 16:13:40 +00:00
xen-hvm-stub.c pc: Remove redundant arguments from xen_hvm_init() 2015-09-10 11:05:40 +03:00
xen-hvm.c Fix bad error handling after memory_region_init_ram() 2015-09-18 14:39:29 +02:00
xen-mapcache.c maint: avoid useless "if (foo) free(foo)" pattern 2015-09-11 10:21:38 +03:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team