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Sean Christopherson e8f85d7884 KVM: x86: Don't treat ENTER and LEAVE as branches, because they aren't 
Remove the IsBranch flag from ENTER and LEAVE in KVM's emulator, as ENTER
and LEAVE are stack operations, not branches.  Add forced emulation of
said instructions to the PMU counters test to prove that KVM diverges from
hardware, and to guard against regressions.

Opportunistically add a missing "1 MOV" to the selftest comment regarding
the number of instructions per loop, which commit 7803339fa9 ("KVM:
selftests: Use data load to trigger LLC references/misses in Intel PMU")
forgot to add.

Fixes: 018d70ffcf ("KVM: x86: Update vPMCs when retiring branch instructions")
Cc: Jim Mattson <jmattson@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Chao Gao <chao.gao@intel.com>
Link: https://lore.kernel.org/r/20250919004639.1360453-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
History 2025-09-22 07:14:05 -07:00
..
accounting tools/getdelays: add backward compatibility for taskstats version 2025-08-02 12:01:41 -07:00
arch x86/rdrand: Disable RDSEED on AMD Cyan Skillfish 2025-07-08 21:33:26 +02:00
bootconfig bootconfig: Fix unaligned access when building footer 2025-07-24 22:16:48 +09:00
bpf bpftool: Add support for dumping streams 2025-07-03 19:30:07 -07:00
build tools: Remove libcrypto dependency 2025-06-26 10:51:41 -07:00
certs tools/certs: Add print-cert-tbs-hash.sh 2022-05-23 18:47:49 +03:00
cgroup memcg_slabinfo: Fix use of PG_slab 2025-07-23 11:55:22 +02:00
counter tools/counter: add direction change event to watcher 2025-02-05 13:22:04 +09:00
crypto crypto: tools/ccp - Remove unused variable 2024-08-30 18:22:30 +08:00
debugging taint: Add TAINT_FWCTL 2025-03-06 15:13:13 -04:00
firewire tools/firewire: Fix several incorrect format specifiers 2024-11-14 09:12:04 +09:00
firmware Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
gpio tools: gpio: Fix several incorrect format specifiers 2024-11-13 16:30:05 +01:00
hv tools/hv: fcopy: Fix irregularities with size of ring buffer 2025-07-15 06:25:33 +00:00
iio iio: normalize array sentinel style 2025-04-22 19:10:04 +01:00
include ARM: 2025-07-30 17:14:01 -07:00
kvm/kvm_stat tools/kvm_stat: use canonical ftrace path 2023-03-29 06:52:08 -04:00
laptop change email address for Pali Rohár 2020-04-10 15:36:22 -07:00
leds .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
lib libbpf: Add the ability to suppress perf event enablement 2025-08-07 09:01:41 -07:00
memory-model tools/memory-model/Documentation: Fix SRCU section in explanation.txt 2025-04-23 12:17:04 -07:00
mm tools/mm: add script to display page state for a given PID and VADDR 2025-07-09 22:41:53 -07:00
net tools: ynl-gen: print setters for multi-val attrs 2025-07-24 17:28:49 -07:00
objtool Runtime verification changes for 6.17 2025-07-30 16:23:12 -07:00
pcmcia .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
perf perf bpf-filter: Enable events manually 2025-08-07 09:03:44 -07:00
power tools/power turbostat: version 2025.09.09 2025-08-10 09:02:36 +03:00
rcu tools/rcu: Remove RCU Tasks Rude asynchronous APIs from rcu-updaters.sh 2024-07-29 07:39:32 +05:30
sched tools/sched: Add dl_bw_dump.py for printing bandwidth accounting info 2025-07-14 10:59:33 +02:00
sched_ext sched_ext: Add support for cgroup bandwidth control interface 2025-06-20 17:03:51 -10:00
scripts tools/build: Fix s390(x) cross-compilation with clang 2025-07-08 09:19:23 +02:00
sound ASoC: dapm-graph: set fill colour of turned on nodes 2025-02-24 18:35:54 +00:00
spi spi: spidev_test: add support for word delay 2024-11-07 15:25:50 +00:00
testing KVM: x86: Don't treat ENTER and LEAVE as branches, because they aren't 2025-09-22 07:14:05 -07:00
thermal tools: Remove redundant quiet setup 2025-02-18 16:27:43 -03:00
time treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
tracing rtla/tests: Test timerlat -P option using actions 2025-07-28 10:22:39 -04:00
usb usbip: tools: Fix detach_port() invalid port error path 2024-10-29 04:23:23 +01:00
verification rv: Add opid per-cpu monitor 2025-07-28 16:47:35 -04:00
virtio tools: virtio/linux/module.h add MODULE_DESCRIPTION() define. 2025-02-25 07:10:45 -05:00
wmi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
workqueue workqueue: remove unnecessary import and function in wq_monitor.py 2024-03-25 10:11:32 -10:00
writeback writeback: add wb_monitor.py script to monitor writeback info on bdi 2024-05-05 17:53:51 -07:00
Makefile tools/Makefile: Add ynl target 2025-04-28 17:18:48 -07:00