3 files changed, 46 insertions, 8 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 9ded2e582c60..48d851fbd8ea 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -305,6 +305,7 @@ struct perf_event_pmu_context;
 #define PERF_PMU_CAP_EXTENDED_HW_TYPE	0x0100
 #define PERF_PMU_CAP_AUX_PAUSE		0x0200
 #define PERF_PMU_CAP_AUX_PREFER_LARGE	0x0400
+#define PERF_PMU_CAP_MEDIATED_VPMU	0x0800
 
 /**
  * pmu::scope
@@ -998,6 +999,11 @@ struct perf_event_groups {
 	u64				index;
 };
 
+struct perf_time_ctx {
+	u64		time;
+	u64		stamp;
+	u64		offset;
+};
 
 /**
  * struct perf_event_context - event context structure
@@ -1036,9 +1042,12 @@ struct perf_event_context {
 	/*
 	 * Context clock, runs when context enabled.
 	 */
-	u64				time;
-	u64				timestamp;
-	u64				timeoffset;
+	struct perf_time_ctx		time;
+
+	/*
+	 * Context clock, runs when in the guest mode.
+	 */
+	struct perf_time_ctx		timeguest;
 
 	/*
 	 * These fields let us detect when two contexts have both
@@ -1171,9 +1180,8 @@ struct bpf_perf_event_data_kern {
  * This is a per-cpu dynamically allocated data structure.
  */
 struct perf_cgroup_info {
-	u64				time;
-	u64				timestamp;
-	u64				timeoffset;
+	struct perf_time_ctx		time;
+	struct perf_time_ctx		timeguest;
 	int				active;
 };
 
@@ -1669,6 +1677,8 @@ struct perf_guest_info_callbacks {
 	unsigned int			(*state)(void);
 	unsigned long			(*get_ip)(void);
 	unsigned int			(*handle_intel_pt_intr)(void);
+
+	void				(*handle_mediated_pmi)(void);
 };
 
 #ifdef CONFIG_GUEST_PERF_EVENTS
@@ -1678,6 +1688,7 @@ extern struct perf_guest_info_callbacks __rcu *perf_guest_cbs;
 DECLARE_STATIC_CALL(__perf_guest_state, *perf_guest_cbs->state);
 DECLARE_STATIC_CALL(__perf_guest_get_ip, *perf_guest_cbs->get_ip);
 DECLARE_STATIC_CALL(__perf_guest_handle_intel_pt_intr, *perf_guest_cbs->handle_intel_pt_intr);
+DECLARE_STATIC_CALL(__perf_guest_handle_mediated_pmi, *perf_guest_cbs->handle_mediated_pmi);
 
 static inline unsigned int perf_guest_state(void)
 {
@@ -1694,6 +1705,11 @@ static inline unsigned int perf_guest_handle_intel_pt_intr(void)
 	return static_call(__perf_guest_handle_intel_pt_intr)();
 }
 
+static inline void perf_guest_handle_mediated_pmi(void)
+{
+	static_call(__perf_guest_handle_mediated_pmi)();
+}
+
 extern void perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs);
 extern void perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs);
 
@@ -1914,6 +1930,13 @@ extern int perf_event_account_interrupt(struct perf_event *event);
 extern int perf_event_period(struct perf_event *event, u64 value);
 extern u64 perf_event_pause(struct perf_event *event, bool reset);
 
+#ifdef CONFIG_PERF_GUEST_MEDIATED_PMU
+int perf_create_mediated_pmu(void);
+void perf_release_mediated_pmu(void);
+void perf_load_guest_context(void);
+void perf_put_guest_context(void);
+#endif
+
 #else /* !CONFIG_PERF_EVENTS: */
 
 static inline void *
diff --git a/include/linux/unwind_user.h b/include/linux/unwind_user.h
index 7f7282516bf5..64618618febd 100644
--- a/include/linux/unwind_user.h
+++ b/include/linux/unwind_user.h
@@ -5,8 +5,22 @@
 #include <linux/unwind_user_types.h>
 #include <asm/unwind_user.h>
 
-#ifndef ARCH_INIT_USER_FP_FRAME
- #define ARCH_INIT_USER_FP_FRAME
+#ifndef CONFIG_HAVE_UNWIND_USER_FP
+
+#define ARCH_INIT_USER_FP_FRAME(ws)
+
+#endif
+
+#ifndef ARCH_INIT_USER_FP_ENTRY_FRAME
+#define ARCH_INIT_USER_FP_ENTRY_FRAME(ws)
+#endif
+
+#ifndef unwind_user_at_function_start
+static inline bool unwind_user_at_function_start(struct pt_regs *regs)
+{
+	return false;
+}
+#define unwind_user_at_function_start unwind_user_at_function_start
 #endif
 
 int unwind_user(struct unwind_stacktrace *trace, unsigned int max_entries);
diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index ee3d36eda45d..f548fea2adec 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -242,6 +242,7 @@ extern void arch_uprobe_clear_state(struct mm_struct *mm);
 extern void arch_uprobe_init_state(struct mm_struct *mm);
 extern void handle_syscall_uprobe(struct pt_regs *regs, unsigned long bp_vaddr);
 extern void arch_uprobe_optimize(struct arch_uprobe *auprobe, unsigned long vaddr);
+extern unsigned long arch_uprobe_get_xol_area(void);
 #else /* !CONFIG_UPROBES */
 struct uprobes_state {
 };