From 3b418d1b9a4a846fac2502e56d1edad13f7c9dd7 Mon Sep 17 00:00:00 2001
From: Ruslan Bukin <br@FreeBSD.org>
Date: Fri, 17 Nov 2017 17:54:10 +0000
Subject: [PATCH] Add Intel Processor Trace registers for: - CPUID - Table of
 Physical Addresses (ToPA).

Sponsored by:	DARPA, AFRL
---
 sys/x86/include/specialreg.h | 52 ++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/sys/x86/include/specialreg.h b/sys/x86/include/specialreg.h
index 39d511330669..e56cc474666a 100644
--- a/sys/x86/include/specialreg.h
+++ b/sys/x86/include/specialreg.h
@@ -188,6 +188,35 @@
 #define	CPUTPM1_ARAT	0x00000004
 #define	CPUTPM2_EFFREQ	0x00000001
 
+/* Intel Processor Trace CPUID. */
+
+/* Leaf 0 ebx. */
+#define	CPUPT_CR3		(1 << 0)	/* CR3 Filtering Support */
+#define	CPUPT_PSB		(1 << 1)	/* Configurable PSB and Cycle-Accurate Mode Supported */
+#define	CPUPT_IPF		(1 << 2)	/* IP Filtering and TraceStop supported */
+#define	CPUPT_MTC		(1 << 3)	/* MTC Supported */
+#define	CPUPT_PRW		(1 << 4)	/* PTWRITE Supported */
+#define	CPUPT_PWR		(1 << 5)	/* Power Event Trace Supported */
+
+/* Leaf 0 ecx. */
+#define	CPUPT_TOPA		(1 << 0)	/* ToPA Output Supported */
+#define	CPUPT_TOPA_MULTI	(1 << 1)	/* ToPA Tables Allow Multiple Output Entries */
+#define	CPUPT_SINGLE		(1 << 2)	/* Single-Range Output Supported */
+#define	CPUPT_TT_OUT		(1 << 3)	/* Output to Trace Transport Subsystem Supported */
+#define	CPUPT_LINEAR_IP		(1 << 31)	/* IP Payloads are Linear IP, otherwise IP is effective */
+
+/* Leaf 1 eax. */
+#define	CPUPT_NADDR_S		0	/* Number of Address Ranges */
+#define	CPUPT_NADDR_M		(0x7 << CPUPT_NADDR_S)
+#define	CPUPT_MTC_BITMAP_S	16	/* Bitmap of supported MTC Period Encodings */
+#define	CPUPT_MTC_BITMAP_M	(0xffff << CPUPT_MTC_BITMAP_S)
+
+/* Leaf 1 ebx. */
+#define	CPUPT_CT_BITMAP_S	0	/* Bitmap of supported Cycle Threshold values */
+#define	CPUPT_CT_BITMAP_M	(0xffff << CPUPT_CT_BITMAP_S)
+#define	CPUPT_PFE_BITMAP_S	16	/* Bitmap of supported Configurable PSB Frequency encoding */
+#define	CPUPT_PFE_BITMAP_M	(0xffff << CPUPT_PFE_BITMAP_S)
+
 /*
  * Important bits in the AMD extended cpuid flags
  */
@@ -602,6 +631,29 @@
 #define	MSR_IA32_RTIT_ADDR3_A		0x586	/* Region 3 Start Address (R/W) */
 #define	MSR_IA32_RTIT_ADDR3_B		0x587	/* Region 3 End Address (R/W) */
 
+/* Intel Processor Trace Table of Physical Addresses (ToPA). */
+#define	TOPA_SIZE_S	6
+#define	TOPA_SIZE_M	(0xf << TOPA_SIZE_S)
+#define	TOPA_SIZE_4K	(0 << TOPA_SIZE_S)
+#define	TOPA_SIZE_8K	(1 << TOPA_SIZE_S)
+#define	TOPA_SIZE_16K	(2 << TOPA_SIZE_S)
+#define	TOPA_SIZE_32K	(3 << TOPA_SIZE_S)
+#define	TOPA_SIZE_64K	(4 << TOPA_SIZE_S)
+#define	TOPA_SIZE_128K	(5 << TOPA_SIZE_S)
+#define	TOPA_SIZE_256K	(6 << TOPA_SIZE_S)
+#define	TOPA_SIZE_512K	(7 << TOPA_SIZE_S)
+#define	TOPA_SIZE_1M	(8 << TOPA_SIZE_S)
+#define	TOPA_SIZE_2M	(9 << TOPA_SIZE_S)
+#define	TOPA_SIZE_4M	(10 << TOPA_SIZE_S)
+#define	TOPA_SIZE_8M	(11 << TOPA_SIZE_S)
+#define	TOPA_SIZE_16M	(12 << TOPA_SIZE_S)
+#define	TOPA_SIZE_32M	(13 << TOPA_SIZE_S)
+#define	TOPA_SIZE_64M	(14 << TOPA_SIZE_S)
+#define	TOPA_SIZE_128M	(15 << TOPA_SIZE_S)
+#define	TOPA_STOP	(1 << 4)
+#define	TOPA_INT	(1 << 2)
+#define	TOPA_END	(1 << 0)
+
 /*
  * Constants related to MSR's.
  */