Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 451 insertions, 0 deletions

diff --git a/arch/x86/kvm/mmu/mmutrace.h b/arch/x86/kvm/mmu/mmutrace.h
new file mode 100644
index 000000000..ae86820ce
--- /dev/null
+++ b/arch/x86/kvm/mmu/mmutrace.h
@@ -0,0 +1,451 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_TRACE_KVMMMU_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_KVMMMU_H
+
+#include <linux/tracepoint.h>
+#include <linux/trace_events.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM kvmmmu
+
+#define KVM_MMU_PAGE_FIELDS		\
+	__field(__u8, mmu_valid_gen)	\
+	__field(__u64, gfn)		\
+	__field(__u32, role)		\
+	__field(__u32, root_count)	\
+	__field(bool, unsync)
+
+#define KVM_MMU_PAGE_ASSIGN(sp)				\
+	__entry->mmu_valid_gen = sp->mmu_valid_gen;	\
+	__entry->gfn = sp->gfn;				\
+	__entry->role = sp->role.word;			\
+	__entry->root_count = sp->root_count;		\
+	__entry->unsync = sp->unsync;
+
+#define KVM_MMU_PAGE_PRINTK() ({				        \
+	const char *saved_ptr = trace_seq_buffer_ptr(p);		\
+	static const char *access_str[] = {			        \
+		"---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux"  \
+	};							        \
+	union kvm_mmu_page_role role;				        \
+								        \
+	role.word = __entry->role;					\
+									\
+	trace_seq_printf(p, "sp gen %u gfn %llx l%u %u-byte q%u%s %s%s"	\
+			 " %snxe %sad root %u %s%c",			\
+			 __entry->mmu_valid_gen,			\
+			 __entry->gfn, role.level,			\
+			 role.has_4_byte_gpte ? 4 : 8,			\
+			 role.quadrant,					\
+			 role.direct ? " direct" : "",			\
+			 access_str[role.access],			\
+			 role.invalid ? " invalid" : "",		\
+			 role.efer_nx ? "" : "!",			\
+			 role.ad_disabled ? "!" : "",			\
+			 __entry->root_count,				\
+			 __entry->unsync ? "unsync" : "sync", 0);	\
+	saved_ptr;							\
+		})
+
+#define kvm_mmu_trace_pferr_flags       \
+	{ PFERR_PRESENT_MASK, "P" },	\
+	{ PFERR_WRITE_MASK, "W" },	\
+	{ PFERR_USER_MASK, "U" },	\
+	{ PFERR_RSVD_MASK, "RSVD" },	\
+	{ PFERR_FETCH_MASK, "F" }
+
+TRACE_DEFINE_ENUM(RET_PF_CONTINUE);
+TRACE_DEFINE_ENUM(RET_PF_RETRY);
+TRACE_DEFINE_ENUM(RET_PF_EMULATE);
+TRACE_DEFINE_ENUM(RET_PF_INVALID);
+TRACE_DEFINE_ENUM(RET_PF_FIXED);
+TRACE_DEFINE_ENUM(RET_PF_SPURIOUS);
+
+/*
+ * A pagetable walk has started
+ */
+TRACE_EVENT(
+	kvm_mmu_pagetable_walk,
+	TP_PROTO(u64 addr, u32 pferr),
+	TP_ARGS(addr, pferr),
+
+	TP_STRUCT__entry(
+		__field(__u64, addr)
+		__field(__u32, pferr)
+	),
+
+	TP_fast_assign(
+		__entry->addr = addr;
+		__entry->pferr = pferr;
+	),
+
+	TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr,
+		  __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
+);
+
+
+/* We just walked a paging element */
+TRACE_EVENT(
+	kvm_mmu_paging_element,
+	TP_PROTO(u64 pte, int level),
+	TP_ARGS(pte, level),
+
+	TP_STRUCT__entry(
+		__field(__u64, pte)
+		__field(__u32, level)
+		),
+
+	TP_fast_assign(
+		__entry->pte = pte;
+		__entry->level = level;
+		),
+
+	TP_printk("pte %llx level %u", __entry->pte, __entry->level)
+);
+
+DECLARE_EVENT_CLASS(kvm_mmu_set_bit_class,
+
+	TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
+
+	TP_ARGS(table_gfn, index, size),
+
+	TP_STRUCT__entry(
+		__field(__u64, gpa)
+	),
+
+	TP_fast_assign(
+		__entry->gpa = ((u64)table_gfn << PAGE_SHIFT)
+				+ index * size;
+		),
+
+	TP_printk("gpa %llx", __entry->gpa)
+);
+
+/* We set a pte accessed bit */
+DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_accessed_bit,
+
+	TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
+
+	TP_ARGS(table_gfn, index, size)
+);
+
+/* We set a pte dirty bit */
+DEFINE_EVENT(kvm_mmu_set_bit_class, kvm_mmu_set_dirty_bit,
+
+	TP_PROTO(unsigned long table_gfn, unsigned index, unsigned size),
+
+	TP_ARGS(table_gfn, index, size)
+);
+
+TRACE_EVENT(
+	kvm_mmu_walker_error,
+	TP_PROTO(u32 pferr),
+	TP_ARGS(pferr),
+
+	TP_STRUCT__entry(
+		__field(__u32, pferr)
+		),
+
+	TP_fast_assign(
+		__entry->pferr = pferr;
+		),
+
+	TP_printk("pferr %x %s", __entry->pferr,
+		  __print_flags(__entry->pferr, "|", kvm_mmu_trace_pferr_flags))
+);
+
+TRACE_EVENT(
+	kvm_mmu_get_page,
+	TP_PROTO(struct kvm_mmu_page *sp, bool created),
+	TP_ARGS(sp, created),
+
+	TP_STRUCT__entry(
+		KVM_MMU_PAGE_FIELDS
+		__field(bool, created)
+		),
+
+	TP_fast_assign(
+		KVM_MMU_PAGE_ASSIGN(sp)
+		__entry->created = created;
+		),
+
+	TP_printk("%s %s", KVM_MMU_PAGE_PRINTK(),
+		  __entry->created ? "new" : "existing")
+);
+
+DECLARE_EVENT_CLASS(kvm_mmu_page_class,
+
+	TP_PROTO(struct kvm_mmu_page *sp),
+	TP_ARGS(sp),
+
+	TP_STRUCT__entry(
+		KVM_MMU_PAGE_FIELDS
+	),
+
+	TP_fast_assign(
+		KVM_MMU_PAGE_ASSIGN(sp)
+	),
+
+	TP_printk("%s", KVM_MMU_PAGE_PRINTK())
+);
+
+DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_sync_page,
+	TP_PROTO(struct kvm_mmu_page *sp),
+
+	TP_ARGS(sp)
+);
+
+DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_unsync_page,
+	TP_PROTO(struct kvm_mmu_page *sp),
+
+	TP_ARGS(sp)
+);
+
+DEFINE_EVENT(kvm_mmu_page_class, kvm_mmu_prepare_zap_page,
+	TP_PROTO(struct kvm_mmu_page *sp),
+
+	TP_ARGS(sp)
+);
+
+TRACE_EVENT(
+	mark_mmio_spte,
+	TP_PROTO(u64 *sptep, gfn_t gfn, u64 spte),
+	TP_ARGS(sptep, gfn, spte),
+
+	TP_STRUCT__entry(
+		__field(void *, sptep)
+		__field(gfn_t, gfn)
+		__field(unsigned, access)
+		__field(unsigned int, gen)
+	),
+
+	TP_fast_assign(
+		__entry->sptep = sptep;
+		__entry->gfn = gfn;
+		__entry->access = spte & ACC_ALL;
+		__entry->gen = get_mmio_spte_generation(spte);
+	),
+
+	TP_printk("sptep:%p gfn %llx access %x gen %x", __entry->sptep,
+		  __entry->gfn, __entry->access, __entry->gen)
+);
+
+TRACE_EVENT(
+	handle_mmio_page_fault,
+	TP_PROTO(u64 addr, gfn_t gfn, unsigned access),
+	TP_ARGS(addr, gfn, access),
+
+	TP_STRUCT__entry(
+		__field(u64, addr)
+		__field(gfn_t, gfn)
+		__field(unsigned, access)
+	),
+
+	TP_fast_assign(
+		__entry->addr = addr;
+		__entry->gfn = gfn;
+		__entry->access = access;
+	),
+
+	TP_printk("addr:%llx gfn %llx access %x", __entry->addr, __entry->gfn,
+		  __entry->access)
+);
+
+TRACE_EVENT(
+	fast_page_fault,
+	TP_PROTO(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
+		 u64 *sptep, u64 old_spte, int ret),
+	TP_ARGS(vcpu, fault, sptep, old_spte, ret),
+
+	TP_STRUCT__entry(
+		__field(int, vcpu_id)
+		__field(gpa_t, cr2_or_gpa)
+		__field(u32, error_code)
+		__field(u64 *, sptep)
+		__field(u64, old_spte)
+		__field(u64, new_spte)
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id = vcpu->vcpu_id;
+		__entry->cr2_or_gpa = fault->addr;
+		__entry->error_code = fault->error_code;
+		__entry->sptep = sptep;
+		__entry->old_spte = old_spte;
+		__entry->new_spte = *sptep;
+		__entry->ret = ret;
+	),
+
+	TP_printk("vcpu %d gva %llx error_code %s sptep %p old %#llx"
+		  " new %llx spurious %d fixed %d", __entry->vcpu_id,
+		  __entry->cr2_or_gpa, __print_flags(__entry->error_code, "|",
+		  kvm_mmu_trace_pferr_flags), __entry->sptep,
+		  __entry->old_spte, __entry->new_spte,
+		  __entry->ret == RET_PF_SPURIOUS, __entry->ret == RET_PF_FIXED
+	)
+);
+
+TRACE_EVENT(
+	kvm_mmu_zap_all_fast,
+	TP_PROTO(struct kvm *kvm),
+	TP_ARGS(kvm),
+
+	TP_STRUCT__entry(
+		__field(__u8, mmu_valid_gen)
+		__field(unsigned int, mmu_used_pages)
+	),
+
+	TP_fast_assign(
+		__entry->mmu_valid_gen = kvm->arch.mmu_valid_gen;
+		__entry->mmu_used_pages = kvm->arch.n_used_mmu_pages;
+	),
+
+	TP_printk("kvm-mmu-valid-gen %u used_pages %x",
+		  __entry->mmu_valid_gen, __entry->mmu_used_pages
+	)
+);
+
+
+TRACE_EVENT(
+	check_mmio_spte,
+	TP_PROTO(u64 spte, unsigned int kvm_gen, unsigned int spte_gen),
+	TP_ARGS(spte, kvm_gen, spte_gen),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, kvm_gen)
+		__field(unsigned int, spte_gen)
+		__field(u64, spte)
+	),
+
+	TP_fast_assign(
+		__entry->kvm_gen = kvm_gen;
+		__entry->spte_gen = spte_gen;
+		__entry->spte = spte;
+	),
+
+	TP_printk("spte %llx kvm_gen %x spte-gen %x valid %d", __entry->spte,
+		  __entry->kvm_gen, __entry->spte_gen,
+		  __entry->kvm_gen == __entry->spte_gen
+	)
+);
+
+TRACE_EVENT(
+	kvm_mmu_set_spte,
+	TP_PROTO(int level, gfn_t gfn, u64 *sptep),
+	TP_ARGS(level, gfn, sptep),
+
+	TP_STRUCT__entry(
+		__field(u64, gfn)
+		__field(u64, spte)
+		__field(u64, sptep)
+		__field(u8, level)
+		/* These depend on page entry type, so compute them now.  */
+		__field(bool, r)
+		__field(bool, x)
+		__field(signed char, u)
+	),
+
+	TP_fast_assign(
+		__entry->gfn = gfn;
+		__entry->spte = *sptep;
+		__entry->sptep = virt_to_phys(sptep);
+		__entry->level = level;
+		__entry->r = shadow_present_mask || (__entry->spte & PT_PRESENT_MASK);
+		__entry->x = is_executable_pte(__entry->spte);
+		__entry->u = shadow_user_mask ? !!(__entry->spte & shadow_user_mask) : -1;
+	),
+
+	TP_printk("gfn %llx spte %llx (%s%s%s%s) level %d at %llx",
+		  __entry->gfn, __entry->spte,
+		  __entry->r ? "r" : "-",
+		  __entry->spte & PT_WRITABLE_MASK ? "w" : "-",
+		  __entry->x ? "x" : "-",
+		  __entry->u == -1 ? "" : (__entry->u ? "u" : "-"),
+		  __entry->level, __entry->sptep
+	)
+);
+
+TRACE_EVENT(
+	kvm_mmu_spte_requested,
+	TP_PROTO(struct kvm_page_fault *fault),
+	TP_ARGS(fault),
+
+	TP_STRUCT__entry(
+		__field(u64, gfn)
+		__field(u64, pfn)
+		__field(u8, level)
+	),
+
+	TP_fast_assign(
+		__entry->gfn = fault->gfn;
+		__entry->pfn = fault->pfn | (fault->gfn & (KVM_PAGES_PER_HPAGE(fault->goal_level) - 1));
+		__entry->level = fault->goal_level;
+	),
+
+	TP_printk("gfn %llx pfn %llx level %d",
+		  __entry->gfn, __entry->pfn, __entry->level
+	)
+);
+
+TRACE_EVENT(
+	kvm_tdp_mmu_spte_changed,
+	TP_PROTO(int as_id, gfn_t gfn, int level, u64 old_spte, u64 new_spte),
+	TP_ARGS(as_id, gfn, level, old_spte, new_spte),
+
+	TP_STRUCT__entry(
+		__field(u64, gfn)
+		__field(u64, old_spte)
+		__field(u64, new_spte)
+		/* Level cannot be larger than 5 on x86, so it fits in a u8. */
+		__field(u8, level)
+		/* as_id can only be 0 or 1 x86, so it fits in a u8. */
+		__field(u8, as_id)
+	),
+
+	TP_fast_assign(
+		__entry->gfn = gfn;
+		__entry->old_spte = old_spte;
+		__entry->new_spte = new_spte;
+		__entry->level = level;
+		__entry->as_id = as_id;
+	),
+
+	TP_printk("as id %d gfn %llx level %d old_spte %llx new_spte %llx",
+		  __entry->as_id, __entry->gfn, __entry->level,
+		  __entry->old_spte, __entry->new_spte
+	)
+);
+
+TRACE_EVENT(
+	kvm_mmu_split_huge_page,
+	TP_PROTO(u64 gfn, u64 spte, int level, int errno),
+	TP_ARGS(gfn, spte, level, errno),
+
+	TP_STRUCT__entry(
+		__field(u64, gfn)
+		__field(u64, spte)
+		__field(int, level)
+		__field(int, errno)
+	),
+
+	TP_fast_assign(
+		__entry->gfn = gfn;
+		__entry->spte = spte;
+		__entry->level = level;
+		__entry->errno = errno;
+	),
+
+	TP_printk("gfn %llx spte %llx level %d errno %d",
+		  __entry->gfn, __entry->spte, __entry->level, __entry->errno)
+);
+
+#endif /* _TRACE_KVMMMU_H */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH mmu
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE mmutrace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>