Commit 01122b89 authored by Peter Zijlstra's avatar Peter Zijlstra
Browse files

perf: Use EXPORT_SYMBOL_FOR_KVM() for the mediated APIs 



Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20251208115156.GE3707891@noisy.programming.kicks-ass.net
parent 3cb3c2f6

arch/x86/events/core.c

+3 −2
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <linux/device.h>

#include <linux/nospec.h>

#include <linux/static_call.h>

#include <linux/kvm_types.h>



#include <asm/apic.h>

#include <asm/stacktrace.h>
@@ -1771,14 +1772,14 @@ void perf_load_guest_lvtpc(u32 guest_lvtpc) 
		   APIC_DM_FIXED | PERF_GUEST_MEDIATED_PMI_VECTOR | masked);

	this_cpu_write(guest_lvtpc_loaded, true);

}

EXPORT_SYMBOL_FOR_MODULES(perf_load_guest_lvtpc, "kvm");

EXPORT_SYMBOL_FOR_KVM(perf_load_guest_lvtpc);



void perf_put_guest_lvtpc(void)

{

	this_cpu_write(guest_lvtpc_loaded, false);

	apic_write(APIC_LVTPC, APIC_DM_NMI);

}

EXPORT_SYMBOL_FOR_MODULES(perf_put_guest_lvtpc, "kvm");

EXPORT_SYMBOL_FOR_KVM(perf_put_guest_lvtpc);

#endif /* CONFIG_PERF_GUEST_MEDIATED_PMU */



static int

include/asm-generic/Kbuild

+1 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ mandatory-y += irq_work.h 
mandatory-y += kdebug.h

mandatory-y += kmap_size.h

mandatory-y += kprobes.h

mandatory-y += kvm_types.h

mandatory-y += linkage.h

mandatory-y += local.h

mandatory-y += local64.h

kernel/events/core.c

+3 −2
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ 
#include <linux/task_work.h>

#include <linux/percpu-rwsem.h>

#include <linux/unwind_deferred.h>

#include <linux/kvm_types.h>



#include "internal.h"
@@ -6388,7 +6389,7 @@ int perf_create_mediated_pmu(void) 
	atomic_inc(&nr_mediated_pmu_vms);

	return 0;

}

EXPORT_SYMBOL_GPL(perf_create_mediated_pmu);

EXPORT_SYMBOL_FOR_KVM(perf_create_mediated_pmu);



void perf_release_mediated_pmu(void)

{
@@ -6397,7 +6398,7 @@ void perf_release_mediated_pmu(void) 


	atomic_dec(&nr_mediated_pmu_vms);

}

EXPORT_SYMBOL_GPL(perf_release_mediated_pmu);

EXPORT_SYMBOL_FOR_KVM(perf_release_mediated_pmu);



/* When loading a guest's mediated PMU, schedule out all exclude_guest events. */

void perf_load_guest_context(void)