mirror-linux/Documentation
Paolo Bonzini d778e68faa KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID
commit 45e966fcca upstream.

Passing the host topology to the guest is almost certainly wrong
and will confuse the scheduler.  In addition, several fields of
these CPUID leaves vary on each processor; it is simply impossible to
return the right values from KVM_GET_SUPPORTED_CPUID in such a way that
they can be passed to KVM_SET_CPUID2.

The values that will most likely prevent confusion are all zeroes.
Userspace will have to override it anyway if it wishes to present a
specific topology to the guest.

Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-18 11:58:10 +01:00
..
ABI dmaengine: idxd: Make read buffer sysfs attributes invisible for Intel IAA 2022-12-31 13:32:47 +01:00
PCI
RCU There's not a huge amount of activity in the docs tree this time around, 2022-10-03 10:23:32 -07:00
accounting filemap: make the accounting of thrashing more consistent 2022-09-26 19:46:06 -07:00
admin-guide iommu/amd: Fix ill-formed ivrs_ioapic, ivrs_hpet and ivrs_acpihid options 2023-01-07 11:11:55 +01:00
arc
arm EFI updates for v6.1 2022-10-09 08:56:54 -07:00
arm64 ARM: 2022-11-06 10:46:59 -08:00
block Documentation: document ublk user recovery feature 2022-10-18 05:12:26 -07:00
bpf Networking changes for 6.1. 2022-10-04 13:38:03 -07:00
cdrom
core-api overflow: Fix kern-doc markup for functions 2022-10-25 14:57:42 -07:00
cpu-freq
crypto
dev-tools docs: kmsan: fix formatting of "Example report" 2022-11-08 15:57:25 -08:00
devicetree dt-bindings: input: iqs7222: Add support for IQS7222A v1.13+ 2022-12-31 13:33:08 +01:00
doc-guide Rust introduction for v6.1-rc1 2022-10-03 16:39:37 -07:00
driver-api spi: Update reference to struct spi_controller 2022-12-31 13:32:06 +01:00
fault-injection debugfs: fix error when writing negative value to atomic_t debugfs file 2022-12-31 13:31:58 +01:00
fb Documentation: fb: udlfb: clean up text and formatting 2022-09-27 13:21:44 -06:00
features
filesystems ext4: journal_path mount options should follow links 2023-01-07 11:11:59 +01:00
firmware-guide Merge branches 'acpi-misc', 'acpi-tools' and 'acpi-docs' 2022-10-03 20:03:49 +02:00
firmware_class
fpga
gpu Immutable backlight-detect-refactor branch between acpi, drm-* and pdx86 2022-09-14 12:27:10 +01:00
hid
hwmon hwmon: (corsair-psu) Add USB id of the new HX1500i psu 2022-10-22 06:59:12 -07:00
i2c docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED 2022-09-28 21:41:59 +02:00
ia64
iio docs: iio: add documentation for BNO055 driver 2022-09-21 18:42:56 +01:00
images
infiniband
input Merge branch 'next' into for-linus 2022-10-09 22:30:23 -07:00
isdn
kbuild Documentation: kbuild: Add description of git for reproducible builds 2022-10-28 00:16:29 +09:00
kernel-hacking Documentation: Fix spelling mistake in hacking.rst 2022-10-24 11:27:51 -06:00
leds
litmus-tests
livepatch
locking Remove duplicate words inside documentation 2022-09-27 13:21:43 -06:00
loongarch docs/LoongArch: Add booting description 2022-12-08 14:59:15 +08:00
m68k
maintainer
mhi
mips
misc-devices
mm A handful of relatively simple documentation fixes, plus a set of patches 2022-10-13 10:58:32 -07:00
netlabel
networking Documentation: networking: Update generic_netlink_howto URL 2022-11-23 17:25:02 -08:00
nios2
nvdimm
openrisc
parisc
pcmcia
peci
power
powerpc powerpc/64s: update cpu selection options 2022-09-28 19:22:10 +10:00
process Char/Misc driver fixes for 6.1-rc6 2022-11-18 10:29:25 -08:00
riscv doc: RISC-V: Document that misaligned accesses are supported 2022-10-12 08:58:10 -07:00
rust x86: enable initial Rust support 2022-09-28 09:02:45 +02:00
s390 vfio/mdev: embedd struct mdev_parent in the parent data structure 2022-10-04 12:06:58 -06:00
scheduler docs: scheduler: Update new path for the sysctl knobs 2022-09-27 13:21:42 -06:00
scsi
security KEYS: encrypted: fix key instantiation with user-provided data 2022-12-21 17:48:11 +01:00
sh
sound
sparc
sphinx
sphinx-static
spi
staging docs: put atomic*.txt and memory-barriers.txt into the core-api book 2022-09-29 12:55:06 -06:00
target
timers
tools A handful of relatively simple documentation fixes, plus a set of patches 2022-10-13 10:58:32 -07:00
trace kprobes: kretprobe events missing on 2-core KVM guest 2023-01-04 11:28:58 +01:00
translations docs/zh_CN: Add LoongArch booting description's translation 2022-12-08 15:03:14 +08:00
usb
userspace-api media fixes for v6.1-rc2 2022-10-22 15:30:15 -07:00
virt KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID 2023-01-18 11:58:10 +01:00
w1 Documentation: W1: minor typo corrections 2022-09-27 13:21:44 -06:00
watchdog
x86 - Get rid of a single ksize() usage 2022-10-04 10:12:08 -07:00
xtensa
.gitignore
Changes
CodingStyle
Kconfig
Makefile
SubmittingPatches
arch.rst
atomic_bitops.txt
atomic_t.txt
conf.py There's not a huge amount of activity in the docs tree this time around, 2022-10-03 10:23:32 -07:00
docutils.conf
dontdiff
index.rst Rust introduction for v6.1-rc1 2022-10-03 16:39:37 -07:00
memory-barriers.txt
subsystem-apis.rst docs: Rewrite the front page 2022-09-29 12:55:06 -06:00