[PATCH v4] target/i386: Add notes for versioned CPU models

[Tao Xu]

Add which features are added or removed in this version.

Signed-off-by: Tao Xu <address@hidden>
---

The output is as follows:
qemu-system-x86_64 -cpu help | grep "\["
x86 Cascadelake-Server-v2  Intel Xeon Processor (Cascadelake) 
[ARCH_CAPABILITIES]
x86 Cascadelake-Server-v3  Intel Xeon Processor (Cascadelake) 
[ARCH_CAPABILITIES, no TSX]
x86 Denverton-v2          Intel Atom Processor (Denverton) [no MPX, no MONITOR]
x86 Icelake-Client-v2     Intel Core Processor (Icelake) [no TSX]
x86 Icelake-Server-v2     Intel Xeon Processor (Icelake) [no TSX]

Changes in v3:
    - Keep the existing custom model-id (Eduardo)

Changes in v2:
    - correct the note of Cascadelake v3 (Xiaoyao)
---
 target/i386/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 34b511f078..1c7690baa0 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3192,6 +3192,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .versions = (X86CPUVersionDefinition[]) {
             { .version = 1 },
             { .version = 2,
+              .note = "ARCH_CAPABILITIES",
               .props = (PropValue[]) {
                   { "arch-capabilities", "on" },
                   { "rdctl-no", "on" },
@@ -3203,6 +3204,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
             },
             { .version = 3,
               .alias = "Cascadelake-Server-noTSX",
+              .note = "ARCH_CAPABILITIES, no TSX",
               .props = (PropValue[]) {
                   { "hle", "off" },
                   { "rtm", "off" },
@@ -3424,6 +3426,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
             { .version = 1 },
             {
                 .version = 2,
+                .note = "no TSX",
                 .alias = "Icelake-Client-noTSX",
                 .props = (PropValue[]) {
                     { "hle", "off" },
@@ -3541,6 +3544,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
             { .version = 1 },
             {
                 .version = 2,
+                .note = "no TSX",
                 .alias = "Icelake-Server-noTSX",
                 .props = (PropValue[]) {
                     { "hle", "off" },
@@ -3648,6 +3652,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
             { .version = 1 },
             {
                 .version = 2,
+                .note = "no MPX, no MONITOR",
                 .props = (PropValue[]) {
                     { "monitor", "off" },
                     { "mpx", "off" },
-- 
2.20.1