diff mbox series

[v3,7/8] target/i386/intel-pt: Define specific PT feature set for IceLake-server and Snowridge

Message ID 20221208062513.2589476-8-xiaoyao.li@intel.com
State New
Headers show
Series Make Intel PT configurable | expand

Commit Message

Xiaoyao Li Dec. 8, 2022, 6:25 a.m. UTC
For IceLake-server, it's just the same as using the default PT
feature set since the default one is exact taken from ICX.

For Snowridge, define it according to real SNR silicon capabilities.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
 target/i386/cpu.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Comments

Chenyi Qiang Dec. 9, 2022, 7:11 a.m. UTC | #1
On 12/8/2022 2:25 PM, Xiaoyao Li wrote:
> For IceLake-server, it's just the same as using the default PT
> feature set since the default one is exact taken from ICX.
> 
> For Snowridge, define it according to real SNR silicon capabilities.
> 
> Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
> ---
>  target/i386/cpu.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index 24f3c7b06698..ef574c819671 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -3458,6 +3458,14 @@ static const X86CPUDefinition builtin_x86_defs[] = {
>          .features[FEAT_6_EAX] =
>              CPUID_6_EAX_ARAT,
>          /* Missing: Mode-based execute control (XS/XU), processor tracing, TSC scaling */
> +        .features[FEAT_14_0_EBX] =
> +            CPUID_14_0_EBX_CR3_FILTER | CPUID_14_0_EBX_PSB |
> +            CPUID_14_0_EBX_IP_FILTER | CPUID_14_0_EBX_MTC,
> +        .features[FEAT_14_0_ECX] =
> +            CPUID_14_0_ECX_TOPA | CPUID_14_0_ECX_MULTI_ENTRIES |
> +            CPUID_14_0_ECX_SINGLE_RANGE,
> +        .features[FEAT_14_1_EAX] = 0x249 << 16 | 0x2,
> +        .features[FEAT_14_1_EBX] = 0x003f << 16 | 0x1fff,
>          .features[FEAT_VMX_BASIC] = MSR_VMX_BASIC_INS_OUTS |
>               MSR_VMX_BASIC_TRUE_CTLS,
>          .features[FEAT_VMX_ENTRY_CTLS] = VMX_VM_ENTRY_IA32E_MODE |
> @@ -3735,6 +3743,16 @@ static const X86CPUDefinition builtin_x86_defs[] = {
>              CPUID_XSAVE_XGETBV1,
>          .features[FEAT_6_EAX] =
>              CPUID_6_EAX_ARAT,
> +        .features[FEAT_14_0_EBX] =
> +            CPUID_14_0_EBX_CR3_FILTER | CPUID_14_0_EBX_PSB |
> +            CPUID_14_0_EBX_IP_FILTER | CPUID_14_0_EBX_MTC |
> +            CPUID_14_0_EBX_PTWRITE | CPUID_14_0_EBX_POWER_EVENT |
> +            CPUID_14_0_EBX_PSB_PMI_PRESERVATION,
> +        .features[FEAT_14_0_ECX] =
> +            CPUID_14_0_ECX_TOPA | CPUID_14_0_ECX_MULTI_ENTRIES |
> +            CPUID_14_0_ECX_SINGLE_RANGE | CPUID_14_0_ECX_LIP,
> +        .features[FEAT_14_1_EAX] = 0x249 << 16 | 0x2,
> +        .features[FEAT_14_1_EBX] = 0x003f << 16 | 0xffff,
>          .features[FEAT_VMX_BASIC] = MSR_VMX_BASIC_INS_OUTS |
>               MSR_VMX_BASIC_TRUE_CTLS,
>          .features[FEAT_VMX_ENTRY_CTLS] = VMX_VM_ENTRY_IA32E_MODE |

Is it acceptable to add the whole FEATURE_WORDS in the default version
of CPU model, or need to put in the versioned one (e.g. Snowridge-v5)?
diff mbox series

Patch

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 24f3c7b06698..ef574c819671 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3458,6 +3458,14 @@  static const X86CPUDefinition builtin_x86_defs[] = {
         .features[FEAT_6_EAX] =
             CPUID_6_EAX_ARAT,
         /* Missing: Mode-based execute control (XS/XU), processor tracing, TSC scaling */
+        .features[FEAT_14_0_EBX] =
+            CPUID_14_0_EBX_CR3_FILTER | CPUID_14_0_EBX_PSB |
+            CPUID_14_0_EBX_IP_FILTER | CPUID_14_0_EBX_MTC,
+        .features[FEAT_14_0_ECX] =
+            CPUID_14_0_ECX_TOPA | CPUID_14_0_ECX_MULTI_ENTRIES |
+            CPUID_14_0_ECX_SINGLE_RANGE,
+        .features[FEAT_14_1_EAX] = 0x249 << 16 | 0x2,
+        .features[FEAT_14_1_EBX] = 0x003f << 16 | 0x1fff,
         .features[FEAT_VMX_BASIC] = MSR_VMX_BASIC_INS_OUTS |
              MSR_VMX_BASIC_TRUE_CTLS,
         .features[FEAT_VMX_ENTRY_CTLS] = VMX_VM_ENTRY_IA32E_MODE |
@@ -3735,6 +3743,16 @@  static const X86CPUDefinition builtin_x86_defs[] = {
             CPUID_XSAVE_XGETBV1,
         .features[FEAT_6_EAX] =
             CPUID_6_EAX_ARAT,
+        .features[FEAT_14_0_EBX] =
+            CPUID_14_0_EBX_CR3_FILTER | CPUID_14_0_EBX_PSB |
+            CPUID_14_0_EBX_IP_FILTER | CPUID_14_0_EBX_MTC |
+            CPUID_14_0_EBX_PTWRITE | CPUID_14_0_EBX_POWER_EVENT |
+            CPUID_14_0_EBX_PSB_PMI_PRESERVATION,
+        .features[FEAT_14_0_ECX] =
+            CPUID_14_0_ECX_TOPA | CPUID_14_0_ECX_MULTI_ENTRIES |
+            CPUID_14_0_ECX_SINGLE_RANGE | CPUID_14_0_ECX_LIP,
+        .features[FEAT_14_1_EAX] = 0x249 << 16 | 0x2,
+        .features[FEAT_14_1_EBX] = 0x003f << 16 | 0xffff,
         .features[FEAT_VMX_BASIC] = MSR_VMX_BASIC_INS_OUTS |
              MSR_VMX_BASIC_TRUE_CTLS,
         .features[FEAT_VMX_ENTRY_CTLS] = VMX_VM_ENTRY_IA32E_MODE |