linux/Documentation
Paul Mackerras 9a5788c615 KVM: PPC: Book3S HV: Add a capability for enabling secure guests
At present, on Power systems with Protected Execution Facility
hardware and an ultravisor, a KVM guest can transition to being a
secure guest at will.  Userspace (QEMU) has no way of knowing
whether a host system is capable of running secure guests.  This
will present a problem in future when the ultravisor is capable of
migrating secure guests from one host to another, because
virtualization management software will have no way to ensure that
secure guests only run in domains where all of the hosts can
support secure guests.

This adds a VM capability which has two functions: (a) userspace
can query it to find out whether the host can support secure guests,
and (b) userspace can enable it for a guest, which allows that
guest to become a secure guest.  If userspace does not enable it,
KVM will return an error when the ultravisor does the hypercall
that indicates that the guest is starting to transition to a
secure guest.  The ultravisor will then abort the transition and
the guest will terminate.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
2020-03-26 11:09:04 +11:00
..
ABI xen: branch for v5.6-rc1 2020-02-05 17:44:14 +00:00
accounting docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
admin-guide s390/protvirt: introduce host side setup 2020-02-27 19:44:40 +01:00
arm ARM: at91: Documentation: add sam9x60 product and datasheet 2020-01-10 23:40:31 +01:00
arm64 Merge branch 'for-next/rng' into for-next/core 2020-01-22 11:38:53 +00:00
block docs: block/biovecs: update the location of bio.c 2020-01-10 10:23:15 -07:00
bpf bpf: Add s390 testing documentation 2019-10-30 16:25:31 +01:00
cdrom docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
core-api mm, tree-wide: rename put_user_page*() to unpin_user_page*() 2020-01-31 10:30:38 -08:00
cpu-freq Documentation: cpufreq: Update policy notifier documentation 2019-09-02 22:44:05 +02:00
crypto crypto: algapi - make unregistration functions return void 2019-12-20 14:58:35 +08:00
dev-tools RISC-V Patches for the 5.6 Merge Window, Part 1 2020-01-31 11:23:29 -08:00
devicetree Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2020-02-15 16:49:25 -08:00
doc-guide Documentation: build warnings related to missing blank lines after explicit markups has been fixed 2020-02-05 10:30:03 -07:00
driver-api Minor bug fixes for IPMI 2020-02-16 13:05:46 -08:00
EDID docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
fault-injection docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
fb fbdev: fbmem: allow overriding the number of bootup logos 2020-01-03 14:27:40 +01:00
features s390 updates for the 5.6 merge window #2 2020-02-05 17:33:35 +00:00
filesystems fs: New zonefs file system 2020-02-09 15:51:46 -08:00
firmware_class
firmware-guide docs: firmware-guide: ACPI: Replace dma_request_slave_channel() with dma_request_chan() 2019-12-19 22:58:12 +01:00
fpga Documentation: fpga: dfl: add descriptions for thermal/power management interfaces 2019-10-16 19:18:26 -07:00
gpu drm-misc-next for v5.6: 2020-01-03 11:43:44 +10:00
hid docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
hwmon hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor driver 2020-01-23 13:15:11 -08:00
i2c docs: i2c: writing-clients: properly name the stop condition 2020-01-29 22:02:09 +01:00
ia64 docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
ide docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
iio docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
infiniband Documentation/infiniband: update name of some functions 2019-09-13 16:55:55 -03:00
input Input: docs: fix spelling mistake "potocol" -> "protocol" 2019-08-06 11:24:49 -06:00
isdn isdn: capi: dead code removal 2019-12-11 09:12:38 +01:00
kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
kernel-hacking Documentation: kernel-hacking: hacking.rst: Change reference to document namespaces.rst to symbol-namespaces.rst 2019-12-19 09:36:23 -07:00
leds leds: core: Add support for composing LED class device names 2019-07-25 20:07:52 +02:00
livepatch livepatch: Documentation of the new API for tracking system state changes 2019-11-01 13:08:24 +01:00
locking docs/locking: Fix outdated section names 2020-02-05 10:21:12 -07:00
m68k docs: README.buddha: convert to ReST and add to m68k book 2019-07-31 13:30:10 -06:00
maintainer Add a maintainer entry profile for documentation 2020-01-24 09:48:39 -07:00
media media updates for v5.6-rc1 2020-01-31 14:43:23 -08:00
mic docs: driver-api: add remaining converted dirs to it 2019-07-15 11:03:03 -03:00
mips docs: fix some broken references 2019-10-10 11:25:39 -06:00
misc-devices Documentation: fix Sphinx warning in xilinx_sdfec.rst 2019-12-19 09:26:25 -07:00
netlabel docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
networking netfilter: nf_flowtable: fix documentation 2020-01-31 19:31:42 +01:00
nios2 docs: nios2: add it to the main Documentation body 2019-07-31 13:31:51 -06:00
nvdimm docs: nvdimm: use ReST notation for subsection 2020-01-24 09:54:42 -07:00
openrisc docs: openrisc: convert to ReST and add to documentation body 2019-07-31 13:30:20 -06:00
parisc docs: parisc: convert to ReST and add to documentation body 2019-07-31 13:30:15 -06:00
PCI Documentation: PCI: Fix pci_alloc_irq_vectors() function name typo 2019-12-30 08:21:29 -06:00
pcmcia docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
power Documentation: admin-guide: PM: Update sleep states documentation 2020-02-03 11:58:26 +01:00
powerpc powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
process A handful of small documentation fixes that wandered in. 2020-02-07 13:03:10 -08:00
RCU Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD 2020-01-24 10:37:27 -08:00
riscv It has been a relatively quiet cycle for documentation, but there's still a 2020-01-29 15:27:31 -08:00
s390 Documentation/s390: remove outdated debugging390 documentation 2019-08-21 12:41:43 +02:00
scheduler Documentation/scheduler: fix links in sched-stats 2019-10-29 04:35:41 -06:00
scsi scsi: smartpqi: Update attribute name to driver_version 2019-12-09 19:17:36 -05:00
security Documentation: security: core.rst: fix warnings 2019-11-22 10:01:47 -07:00
sh docs: remove extra conf.py files 2019-07-17 06:57:52 -03:00
sound sound updates for 5.6-rc1 2020-01-28 16:26:57 -08:00
sparc docs: add arch doc directories to the index 2019-07-15 11:03:01 -03:00
sphinx docs: Keep up with the location of NoUri 2020-01-24 09:47:05 -07:00
sphinx-static doc-rst: Reduce CSS padding around Field 2019-10-02 10:03:06 -06:00
spi spi: docs: convert to ReST and add it to the kABI bookset 2019-07-31 14:13:13 -06:00
target docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
timers docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
trace A handful of small documentation fixes that wandered in. 2020-02-07 13:03:10 -08:00
translations Documentation: changes.rst: update several outdated project URLs 2020-02-05 10:32:57 -07:00
usb docs: usb: remove some broken references 2020-01-28 13:41:22 -07:00
userspace-api staging: remove isdn capi drivers 2019-12-11 09:11:29 +01:00
virt KVM: PPC: Book3S HV: Add a capability for enabling secure guests 2020-03-26 11:09:04 +11:00
vm mm/zswap.c: add allocation hysteresis if pool limit is hit 2020-01-31 10:30:39 -08:00
w1 docs: w1: Fix a typo in omap-hdq.rst 2019-12-30 11:58:02 -07:00
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
x86 MPX requires recompiling applications, which requires compiler support. 2020-01-30 16:11:50 -08:00
xtensa docs: add arch doc directories to the index 2019-07-15 11:03:01 -03:00
.gitignore
asm-annotations.rst Documentation: Call out example SYM_FUNC_* usage as x86-specific 2020-01-16 12:53:16 -07:00
atomic_bitops.txt
atomic_t.txt Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 16:12:03 -07:00
bus-virt-phys-mapping.txt
Changes
CodingStyle
conf.py doc-rst: Programmatically render MAINTAINERS into ReST 2019-10-02 10:03:17 -06:00
COPYING-logo docs: logo.txt: rename it to COPYING-logo 2019-07-15 09:20:27 -03:00
crc32.txt
debugging-modules.txt
debugging-via-ohci1394.txt
digsig.txt
DMA-API-HOWTO.txt docs: DMA-API-HOWTO.txt: fix an unmarked code block 2019-07-15 09:20:24 -03:00
DMA-API.txt dma-mapping: remove dma_release_declared_memory 2019-09-04 11:13:19 +02:00
DMA-attributes.txt dma-mapping: remove the DMA_ATTR_WRITE_BARRIER flag 2019-11-14 12:01:54 -04:00
DMA-ISA-LPC.txt
docutils.conf doc-rst: Add missing newline at end of file 2019-06-20 14:16:56 -06:00
dontdiff modpost: dump missing namespaces into a single modules.nsdeps file 2019-11-11 20:10:01 +09:00
futex-requeue-pi.txt
hwspinlock.txt hwspinlock: add the 'in_atomic' API 2019-06-29 21:08:14 -07:00
index.rst Here's the main documentation changes for 5.5: 2019-12-02 11:51:02 -08:00
io_ordering.txt
io-mapping.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
Kconfig docs: Kbuild/Makefile: allow check for missing docs at build time 2019-06-07 11:33:16 -06:00
kobject.txt
kprobes.txt Merge branch 'parisc-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2019-05-07 19:34:17 -07:00
kref.txt
logo.gif
lzo.txt
mailbox.txt
Makefile Kbuild updates for v5.5 2019-12-02 17:35:04 -08:00
memory-barriers.txt smp_mb__{before,after}_atomic(): update Documentation 2020-02-04 03:05:23 +00:00
nommu-mmap.txt
percpu-rw-semaphore.txt
pi-futex.txt docs: locking: convert docs to ReST and rename to *.rst 2019-07-15 08:53:27 -03:00
preempt-locking.txt
rbtree.txt docs: rbtree.txt: fix Sphinx build warnings 2019-07-15 09:20:24 -03:00
remoteproc.txt remoteproc: add vendor resources handling 2019-06-29 12:02:17 -07:00
robust-futex-ABI.txt
robust-futexes.txt futex: Update comments and docs about return values of arch futex code 2019-04-26 13:57:55 +01:00
rpmsg.txt
speculation.txt
static-keys.txt
SubmittingPatches
tee.txt Documentation: tee: add AMD-TEE driver details 2020-01-04 13:49:51 +08:00
this_cpu_ops.txt
unaligned-memory-access.txt
xz.txt