File 57a30261-x86-support-newer-Intel-CPU-models.patch of Package xen

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File 57a30261-x86-support-newer-Intel-CPU-models.patch of Package xen (Revision 07dbb2498e987cf80e1a7436a7bf763b)

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# Commit 350bc1a9d4ebc03b18a43cdafcb626618caace55
# Date 2016-08-04 10:52:49 +0200
# Author Jan Beulich <jbeulich@suse.com>
# Committer Jan Beulich <jbeulich@suse.com>
x86: support newer Intel CPU models

... as per the June 2016 edition of the SDM.

Also remove a couple of dead break statements as well as unused
*MSR_PM_LASTBRANCH* #define-s.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>

References: bsc#996191
# Commit 6bd621d7010bb8561196aedf5198d5fe7c146822
# Date 2016-09-19 11:42:23 +0200
# Author Jan Beulich <jbeulich@suse.com>
# Committer Jan Beulich <jbeulich@suse.com>
x86/Intel: Broadwell doesn't have PKG_C{8,9,10}_RESIDENCY MSRs

According to
https://lists.xenproject.org/archives/html/xen-devel/2016-09/msg01797.html
this partially reverts commit 350bc1a9d4 ("x86: support newer Intel CPU
models") to account for the appearant earlier mis-documentation.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>

--- a/xen/arch/x86/acpi/cpu_idle.c
+++ b/xen/arch/x86/acpi/cpu_idle.c
@@ -61,7 +61,7 @@
 
 #define GET_HW_RES_IN_NS(msr, val) \
     do { rdmsrl(msr, val); val = tsc_ticks2ns(val); } while( 0 )
-#define GET_MC6_RES(val)  GET_HW_RES_IN_NS(0x664, val) /* Atom E3000 only */
+#define GET_MC6_RES(val)  GET_HW_RES_IN_NS(0x664, val)
 #define GET_PC2_RES(val)  GET_HW_RES_IN_NS(0x60D, val) /* SNB onwards */
 #define GET_PC3_RES(val)  GET_HW_RES_IN_NS(0x3F8, val)
 #define GET_PC6_RES(val)  GET_HW_RES_IN_NS(0x3F9, val)
@@ -158,10 +158,12 @@ static void do_get_hw_residencies(void *
     case 0x46:
     /* Broadwell */
     case 0x3D:
+    case 0x47:
     case 0x4F:
     case 0x56:
-    /* future */
+    /* Skylake */
     case 0x4E:
+    case 0x5E:
         GET_PC2_RES(hw_res->pc2);
         GET_CC7_RES(hw_res->cc7);
         /* fall through */
@@ -198,18 +200,28 @@ static void do_get_hw_residencies(void *
         break;
     /* Silvermont */
     case 0x37:
-        GET_MC6_RES(hw_res->mc6);
-        /* fall through */
     case 0x4A:
     case 0x4D:
     case 0x5A:
     case 0x5D:
     /* Airmont */
     case 0x4C:
+        GET_MC6_RES(hw_res->mc6);
         GET_PC7_RES(hw_res->pc6); /* abusing GET_PC7_RES */
         GET_CC1_RES(hw_res->cc1);
         GET_CC6_RES(hw_res->cc6);
         break;
+    /* Goldmont */
+    case 0x5C:
+    case 0x5F:
+        GET_PC2_RES(hw_res->pc2);
+        GET_PC3_RES(hw_res->pc3);
+        GET_PC6_RES(hw_res->pc6);
+        GET_PC10_RES(hw_res->pc10);
+        GET_CC1_RES(hw_res->cc1);
+        GET_CC3_RES(hw_res->cc3);
+        GET_CC6_RES(hw_res->cc6);
+        break;
     }
 }
 
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -2529,6 +2529,14 @@ static const struct lbr_info {
     { MSR_P4_LASTBRANCH_0_FROM_LIP, NUM_MSR_P4_LASTBRANCH_FROM_TO },
     { MSR_P4_LASTBRANCH_0_TO_LIP,   NUM_MSR_P4_LASTBRANCH_FROM_TO },
     { 0, 0 }
+}, sk_lbr[] = {
+    { MSR_IA32_LASTINTFROMIP,       1 },
+    { MSR_IA32_LASTINTTOIP,         1 },
+    { MSR_SKL_LASTBRANCH_TOS,       1 },
+    { MSR_SKL_LASTBRANCH_0_FROM_IP, NUM_MSR_SKL_LASTBRANCH },
+    { MSR_SKL_LASTBRANCH_0_TO_IP,   NUM_MSR_SKL_LASTBRANCH },
+    { MSR_SKL_LASTBRANCH_0_INFO,    NUM_MSR_SKL_LASTBRANCH },
+    { 0, 0 }
 }, at_lbr[] = {
     { MSR_IA32_LASTINTFROMIP,       1 },
     { MSR_IA32_LASTINTTOIP,         1 },
@@ -2536,6 +2544,13 @@ static const struct lbr_info {
     { MSR_C2_LASTBRANCH_0_FROM_IP,  NUM_MSR_ATOM_LASTBRANCH_FROM_TO },
     { MSR_C2_LASTBRANCH_0_TO_IP,    NUM_MSR_ATOM_LASTBRANCH_FROM_TO },
     { 0, 0 }
+}, gm_lbr[] = {
+    { MSR_IA32_LASTINTFROMIP,       1 },
+    { MSR_IA32_LASTINTTOIP,         1 },
+    { MSR_GM_LASTBRANCH_TOS,        1 },
+    { MSR_GM_LASTBRANCH_0_FROM_IP,  NUM_MSR_GM_LASTBRANCH_FROM_TO },
+    { MSR_GM_LASTBRANCH_0_TO_IP,    NUM_MSR_GM_LASTBRANCH_FROM_TO },
+    { 0, 0 }
 };
 
 static const struct lbr_info *last_branch_msr_get(void)
@@ -2550,7 +2565,6 @@ static const struct lbr_info *last_branc
         /* Enhanced Core */
         case 23:
             return c2_lbr;
-            break;
         /* Nehalem */
         case 26: case 30: case 31: case 46:
         /* Westmere */
@@ -2562,11 +2576,13 @@ static const struct lbr_info *last_branc
         /* Haswell */
         case 60: case 63: case 69: case 70:
         /* Broadwell */
-        case 61: case 79: case 86:
-        /* future */
-        case 78:
+        case 61: case 71: case 79: case 86:
             return nh_lbr;
-            break;
+        /* Skylake */
+        case 78: case 94:
+        /* future */
+        case 142: case 158:
+            return sk_lbr;
         /* Atom */
         case 28: case 38: case 39: case 53: case 54:
         /* Silvermont */
@@ -2576,7 +2592,9 @@ static const struct lbr_info *last_branc
         /* Airmont */
         case 76:
             return at_lbr;
-            break;
+        /* Goldmont */
+        case 92: case 95:
+            return gm_lbr;
         }
         break;
 
@@ -2586,7 +2604,6 @@ static const struct lbr_info *last_branc
         /* Pentium4/Xeon with em64t */
         case 3: case 4: case 6:
             return p4_lbr;
-            break;
         }
         break;
     }
--- a/xen/include/asm-x86/msr-index.h
+++ b/xen/include/asm-x86/msr-index.h
@@ -462,11 +462,6 @@
 #define MSR_P4_LASTBRANCH_0_TO_LIP	0x000006c0
 #define NUM_MSR_P4_LASTBRANCH_FROM_TO	16
 
-/* Pentium M (and Core) last-branch recording */
-#define MSR_PM_LASTBRANCH_TOS		0x000001c9
-#define MSR_PM_LASTBRANCH_0		0x00000040
-#define NUM_MSR_PM_LASTBRANCH		8
-
 /* Core 2 and Atom last-branch recording */
 #define MSR_C2_LASTBRANCH_TOS		0x000001c9
 #define MSR_C2_LASTBRANCH_0_FROM_IP	0x00000040
@@ -474,6 +469,19 @@
 #define NUM_MSR_C2_LASTBRANCH_FROM_TO	4
 #define NUM_MSR_ATOM_LASTBRANCH_FROM_TO	8
 
+/* Skylake (and newer) last-branch recording */
+#define MSR_SKL_LASTBRANCH_TOS		0x000001c9
+#define MSR_SKL_LASTBRANCH_0_FROM_IP	0x00000680
+#define MSR_SKL_LASTBRANCH_0_TO_IP	0x000006c0
+#define MSR_SKL_LASTBRANCH_0_INFO	0x00000dc0
+#define NUM_MSR_SKL_LASTBRANCH		32
+
+/* Goldmont last-branch recording */
+#define MSR_GM_LASTBRANCH_TOS		0x000001c9
+#define MSR_GM_LASTBRANCH_0_FROM_IP	0x00000680
+#define MSR_GM_LASTBRANCH_0_TO_IP	0x000006c0
+#define NUM_MSR_GM_LASTBRANCH_FROM_TO	32
+
 /* Intel Core-based CPU performance counters */
 #define MSR_CORE_PERF_FIXED_CTR0	0x00000309
 #define MSR_CORE_PERF_FIXED_CTR1	0x0000030a

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File 57a30261-x86-support-newer-Intel-CPU-models.patch of Package xen (Revision 07dbb2498e987cf80e1a7436a7bf763b)

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