linux/kernel/events
Sean Christopherson 2aef6f306b perf: Force architectures to opt-in to guest callbacks
Introduce GUEST_PERF_EVENTS and require architectures to select it to
allow registering and using guest callbacks in perf.  This will hopefully
make it more difficult for new architectures to add useless "support" for
guest callbacks, e.g. via copy+paste.

Stubbing out the helpers has the happy bonus of avoiding a load of
perf_guest_cbs when GUEST_PERF_EVENTS=n on arm64/x86.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20211111020738.2512932-9-seanjc@google.com
2021-11-17 14:49:08 +01:00
..
callchain.c uaccess: add force_uaccess_{begin,end} helpers 2020-08-12 10:57:59 -07:00
core.c perf: Force architectures to opt-in to guest callbacks 2021-11-17 14:49:08 +01:00
hw_breakpoint.c perf/hw_breakpoint: Replace deprecated CPU-hotplug functions 2021-08-26 09:14:36 +02:00
internal.h tracing/perf: Add interrupt_context_level() helper 2021-10-19 20:33:20 -04:00
Makefile perf/core: allow ftrace for functions in kernel/event/core.c 2021-10-25 22:50:42 -04:00
ring_buffer.c perf: Cap allocation order at aux_watermark 2021-04-16 16:32:39 +02:00
uprobes.c mm/memcg: Convert mem_cgroup_charge() to take a folio 2021-09-27 09:27:31 -04:00