Oliver Upton f1a9761fbb KVM: x86: Allow userspace to opt out of hypercall patching ... KVM handles the VMCALL/VMMCALL instructions very strangely. Even though both of these instructions really should #UD when executed on the wrong vendor's hardware (i.e. VMCALL on SVM, VMMCALL on VMX), KVM replaces the guest's instruction with the appropriate instruction for the vendor. Nonetheless, older guest kernels without commit c1118b3602 ("x86: kvm: use alternatives for VMCALL vs. VMMCALL if kernel text is read-only") do not patch in the appropriate instruction using alternatives, likely motivating KVM's intervention. Add a quirk allowing userspace to opt out of hypercall patching. If the quirk is disabled, KVM synthesizes a #UD in the guest. Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20220316005538.2282772-2-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-04-02 05:41:10 -04:00
..
ABI	f2fs-for-5.17-rc1	2022-01-19 11:50:20 +02:00
PCI	…
RCU	Merge branches 'doc.2021.11.30c', 'exp.2021.12.07a', 'fastnohz.2021.11.30c', 'fixes.2021.11.30c', 'nocb.2021.12.09a', 'nolibc.2021.11.30c', 'tasks.2021.12.09a', 'torture.2021.12.07a' and 'torturescript.2021.11.30c' into HEAD	2021-12-09 11:38:09 -08:00
accounting	- A bunch of fixes: forced idle time accounting, utilization values	2022-01-23 17:35:27 +02:00
admin-guide	KVM: x86/mmu: Remove MMU auditing	2022-02-18 13:46:23 -05:00
arc	docs: ARC: Improve readability	2021-12-10 14:28:01 -07:00
arm	Documentation: arm: marvell: Extend Avanta list	2022-01-27 11:22:34 -07:00
arm64	KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata	2022-02-03 09:22:30 +00:00
block	docs: block: remove queue-sysfs.rst	2022-01-09 18:59:10 -07:00
bpf	bpf, docs: Fully document the JMP mode modifiers	2022-01-05 13:11:26 -08:00
cdrom	…
core-api	Convert xfs/iomap to use folios	2022-01-12 12:51:41 -08:00
cpu-freq	cpufreq: docs: Update core.rst	2021-12-01 20:02:11 +01:00
crypto	…
dev-tools	docs/kselftest: clarify running mainline tests on stables	2022-01-27 10:56:09 -07:00
devicetree	Networking fixes for 5.17-rc3, including fixes from bpf, netfilter,	2022-02-03 16:54:18 -08:00
doc-guide	docs: discourage use of list tables	2022-01-07 09:33:13 -07:00
driver-api	Three small documentation fixes.	2022-01-22 09:02:57 +02:00
fault-injection	…
fb	…
features	ARM: 9158/1: leave it to core code to manage thread_info::cpu	2021-12-17 11:34:31 +00:00
filesystems	netfs, cachefiles: Add a method to query presence of data in the cache	2022-02-01 10:29:18 -06:00
firmware-guide	Device properties framework updates for 5.17-rc1	2022-01-10 20:48:19 -08:00
firmware_class	…
fpga	…
gpu	Revert "fbcon: Disable accelerated scrolling"	2022-02-02 15:15:11 +01:00
hid	…
hwmon	hwmon/pmbus: (ir38064) Add support for IR38060, IR38164 IR38263	2021-12-26 15:02:07 -08:00
i2c	Docs: Fixes link to I2C specification	2021-12-31 14:39:28 +01:00
ia64	…
ide	…
iio	…
infiniband	…
input	…
isdn	…
kbuild	doc: kbuild: fix default in `imply` table	2022-01-08 18:28:21 +09:00
kernel-hacking	docs: fix typo in Documentation/kernel-hacking/locking.rst	2022-01-27 11:22:33 -07:00
leds	…
litmus-tests	…
livepatch	Documentation: livepatch: Add livepatch API page	2021-12-23 11:35:53 +01:00
locking	Documentation/locking/locktypes: Update migrate_disable() bits.	2021-11-30 15:40:31 +01:00
m68k	…
maintainer	…
mhi	…
mips	…
misc-devices	…
netlabel	…
networking	This isn't a hugely busy cycle for documentation, but a few significant	2022-01-11 10:00:04 -08:00
nios2	…
nvdimm	…
openrisc	…
parisc	…
pcmcia	…
power	Merge branches 'pm-opp', 'pm-devfreq' and 'powercap'	2022-01-10 18:00:31 +01:00
powerpc	…
process	Kbuild updates for v5.17	2022-01-19 11:15:19 +02:00
riscv	riscv: Move KASAN mapping next to the kernel mapping	2022-01-19 17:54:04 -08:00
s390	…
scheduler	docs/scheduler: fix typo and warning in sched-bwc	2021-12-06 12:15:49 -07:00
scsi	…
security	docs: update self-protection __ro_after_init status	2021-12-10 14:02:06 -07:00
sh	…
sound	ALSA: hda/realtek: Add new alc285-hp-amp-init model	2021-12-14 10:44:26 +01:00
sparc	…
sphinx	docs: automarkup.py: Fix invalid HTML link output and broken URI fragments	2022-01-07 09:32:58 -07:00
sphinx-static	docs: add support for RTD dark mode	2021-12-10 14:05:55 -07:00
spi	spi: pxa2xx: Get rid of unused enable_loopback member	2021-11-29 12:20:00 +00:00
staging	Three small documentation fixes.	2022-01-22 09:02:57 +02:00
target	…
timers	rcu: Remove the RCU_FAST_NO_HZ Kconfig option	2021-11-30 17:24:47 -08:00
tools	docs: Hook the RTLA documents into the kernel docs build	2022-01-27 11:20:39 -07:00
trace	Three small documentation fixes.	2022-01-22 09:02:57 +02:00
translations	driver core changes for 5.17-rc1	2022-01-12 11:11:34 -08:00
tty	Documentation: add TTY chapter	2021-11-26 16:27:43 +01:00
usb	docs: ABI: fixed req_number desc in UAC1	2021-12-30 12:10:44 +01:00
userspace-api	xen: update missing ioctl magic numers documentation	2022-02-03 08:24:34 +01:00
virt	KVM: x86: Allow userspace to opt out of hypercall patching	2022-04-02 05:41:10 -04:00
vm	docs/vm: Fix typo in *harden*	2022-01-27 11:22:34 -07:00
w1	…
watchdog	…
x86	x86/sgx: Fix minor documentation issues	2021-11-17 06:36:09 -08:00
xtensa	…
.gitignore	…
COPYING-logo	…
Changes	…
CodingStyle	…
Kconfig	…
Makefile	docs: address some text issues with css/theme support	2021-12-16 15:54:12 -07:00
SubmittingPatches	…
arch.rst	docs: Add documentation for ARC processors	2021-11-29 14:53:11 -07:00
asm-annotations.rst	…
atomic_bitops.txt	…
atomic_t.txt	…
conf.py	docs: add support for RTD dark mode	2021-12-10 14:05:55 -07:00
docutils.conf	…
dontdiff	…
index.rst	docs: Hook the RTLA documents into the kernel docs build	2022-01-27 11:20:39 -07:00
logo.gif	…
memory-barriers.txt	asm-generic: introduce io_stop_wc() and add implementation for ARM64	2021-12-22 10:44:53 +00:00
watch_queue.rst	…