mirror-linux/tools/testing
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>
2025-09-22 07:14:05 -07:00
..
crypto/chacha20-s390
cxl cxl for v6.17 2025-08-01 15:47:06 -07:00
fault-injection
ktest ktest.pl: Add new PATCHCHECK_SKIP option to skip testing individual commits 2025-07-29 09:30:08 -04:00
kunit
memblock
nvdimm mm: remove callers of pfn_t functionality 2025-07-09 22:42:19 -07:00
radix-tree tools/testing/radix-tree: test maple tree chaining mas_preallocate() calls 2025-07-09 22:42:12 -07:00
rbtree
scatterlist
selftests KVM: x86: Don't treat ENTER and LEAVE as branches, because they aren't 2025-09-22 07:14:05 -07:00
shared
vma Significant patch series in this pull request: 2025-08-05 16:02:07 +03:00
vsock vsock/test: fix vsock_ioctl_int() check for unsupported ioctl 2025-07-16 16:14:00 -07:00