KVM: x86/PVM: Introduce uapi/asm/pvm_trace.h header

Create a new uapi header file, uapi/asm/pvm_trace.h, containing the
PVM_EXIT_REASONS table and associated macros for PVM exit reasons.

This change allows performance analysis tools, such as perf, to utilize
the PVM exit reason macros directly from the uapi header, rather than
redefining them locally.

Signed-off-by: Jinrong Liang <cloudliang@tencent.com>

Author: Jinrong Liang

arch/x86/include/uapi/asm/pvm_trace.h

@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef UAPI_KVM_X86_PVM_TRACE_H
+#define UAPI_KVM_X86_PVM_TRACE_H
+
+#include <linux/bitops.h>
+
+#define NMI_VECTOR				0x02
+#define PVM_EXIT_REASONS_FAILED_VMENTRY		1025
+
+#define PVM_EXIT_REASONS_SHIFT			16
+#define PVM_EXIT_REASONS_SYSCALL		BIT(PVM_EXIT_REASONS_SHIFT)
+#define PVM_EXIT_REASONS_HYPERCALL		(2UL << PVM_EXIT_REASONS_SHIFT)
+#define PVM_EXIT_REASONS_ERETU			(3UL << PVM_EXIT_REASONS_SHIFT)
+#define PVM_EXIT_REASONS_ERETS			(4UL << PVM_EXIT_REASONS_SHIFT)
+#define PVM_EXIT_REASONS_INTERRUPT		(5UL << PVM_EXIT_REASONS_SHIFT)
+#define PVM_EXIT_REASONS_INT80			(6UL << PVM_EXIT_REASONS_SHIFT)
+
+#define PVM_EXIT_REASONS_HC_IRQ_WIN		(PVM_EXIT_REASONS_HYPERCALL + 1)
+#define PVM_EXIT_REASONS_HC_IRQ_HALT		(PVM_EXIT_REASONS_HYPERCALL + 2)
+#define PVM_EXIT_REASONS_HC_LOAD_PGTBL		(PVM_EXIT_REASONS_HYPERCALL + 3)
+#define PVM_EXIT_REASONS_HC_TLB_FLUSH		(PVM_EXIT_REASONS_HYPERCALL + 4)
+#define PVM_EXIT_REASONS_HC_TLB_FLUSH_CURRENT	(PVM_EXIT_REASONS_HYPERCALL + 5)
+#define PVM_EXIT_REASONS_HC_TLB_INVLPG		(PVM_EXIT_REASONS_HYPERCALL + 6)
+#define PVM_EXIT_REASONS_HC_LOAD_GS		(PVM_EXIT_REASONS_HYPERCALL + 7)
+#define PVM_EXIT_REASONS_HC_RDMSR		(PVM_EXIT_REASONS_HYPERCALL + 8)
+#define PVM_EXIT_REASONS_HC_WRMSR		(PVM_EXIT_REASONS_HYPERCALL + 9)
+#define PVM_EXIT_REASONS_HC_LOAD_TLS		(PVM_EXIT_REASONS_HYPERCALL + 10)
+
+#define PVM_EXIT_REASONS					\
+	{ DE_VECTOR, "DE excp" },				\
+	{ DB_VECTOR, "DB excp" },				\
+	{ NMI_VECTOR, "NMI excp" },				\
+	{ BP_VECTOR, "BP excp" },				\
+	{ OF_VECTOR, "OF excp" },				\
+	{ BR_VECTOR, "BR excp" },				\
+	{ UD_VECTOR, "UD excp" },				\
+	{ NM_VECTOR, "NM excp" },				\
+	{ DF_VECTOR, "DF excp" },				\
+	{ TS_VECTOR, "TS excp" },				\
+	{ SS_VECTOR, "SS excp" },				\
+	{ GP_VECTOR, "GP excp" },				\
+	{ PF_VECTOR, "PF excp" },				\
+	{ MF_VECTOR, "MF excp" },				\
+	{ AC_VECTOR, "AC excp" },				\
+	{ MC_VECTOR, "MC excp" },				\
+	{ XM_VECTOR, "XM excp" },				\
+	{ VE_VECTOR, "VE excp" },				\
+	{ PVM_EXIT_REASONS_SYSCALL, "SYSCALL" },		\
+	{ PVM_EXIT_REASONS_HYPERCALL, "HYPERCALL" },		\
+	{ PVM_EXIT_REASONS_ERETU, "ERETU" },			\
+	{ PVM_EXIT_REASONS_ERETS, "ERETS" },			\
+	{ PVM_EXIT_REASONS_INTERRUPT, "INTERRUPT" },		\
+	{ PVM_EXIT_REASONS_INT80, "INT80" },			\
+	{ PVM_EXIT_REASONS_HC_IRQ_WIN, "HC_IRQ_WIN" },		\
+	{ PVM_EXIT_REASONS_HC_IRQ_HALT, "HC_IRQ_HALT" },	\
+	{ PVM_EXIT_REASONS_HC_LOAD_PGTBL, "HC_LOAD_PGTBL" },	\
+	{ PVM_EXIT_REASONS_HC_TLB_FLUSH, "HC_TLB_FLUSH" },	\
+	{ PVM_EXIT_REASONS_HC_TLB_FLUSH_CURRENT, "HC_TLB_FLUSH_CURRENT" },\
+	{ PVM_EXIT_REASONS_HC_TLB_INVLPG, "HC_TLB_INVLPG" },	\
+	{ PVM_EXIT_REASONS_HC_LOAD_GS, "HC_LOAD_GS" },		\
+	{ PVM_EXIT_REASONS_HC_RDMSR, "HC_RDMSR" },		\
+	{ PVM_EXIT_REASONS_HC_WRMSR, "HC_WRMSR" },		\
+	{ PVM_EXIT_REASONS_HC_LOAD_TLS, "HC_LOAD_TLS" },	\
+	{ PVM_EXIT_REASONS_FAILED_VMENTRY, "FAILED_VMENTRY" }
+
+#endif /* UAPI_KVM_X86_PVM_TRACE_H */