[PATCH 1/4] x86/mwait-idle: Update vendor/family/model logic

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Switch to the new fields and constants.

In mwait_idle_probe(), exit early for non-Intel CPUs.  intel_idle_ids[] is a
large (and ever increasing) table and it's not reasonable to scan it for other
vendors, nor is it ideal to be emitting an ambigous error(ish) message.

No practical change.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/arch/x86/cpu/mwait-idle.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/xen/arch/x86/cpu/mwait-idle.c b/xen/arch/x86/cpu/mwait-idle.c
index e837cbf50eb3..f47fdfb569d4 100644
--- a/xen/arch/x86/cpu/mwait-idle.c
+++ b/xen/arch/x86/cpu/mwait-idle.c
@@ -1566,27 +1566,27 @@ static void __init spr_idle_state_table_update(void)
  */
 static void __init mwait_idle_state_table_update(void)
 {
-       switch (boot_cpu_data.x86_model) {
-       case INTEL_FAM6_IVYBRIDGE_X:
+       switch (boot_cpu_data.vfm) {
+       case INTEL_IVYBRIDGE_X:
                ivt_idle_state_table_update();
                break;
-       case INTEL_FAM6_ATOM_GOLDMONT:
-       case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
+       case INTEL_ATOM_GOLDMONT:
+       case INTEL_ATOM_GOLDMONT_PLUS:
                bxt_idle_state_table_update();
                break;
-       case INTEL_FAM6_SKYLAKE:
+       case INTEL_SKYLAKE:
                sklh_idle_state_table_update();
                break;
-       case INTEL_FAM6_SKYLAKE_X:
+       case INTEL_SKYLAKE_X:
                skx_idle_state_table_update();
                break;
-       case INTEL_FAM6_SAPPHIRERAPIDS_X:
-       case INTEL_FAM6_EMERALDRAPIDS_X:
+       case INTEL_SAPPHIRERAPIDS_X:
+       case INTEL_EMERALDRAPIDS_X:
                spr_idle_state_table_update();
                break;
-       case INTEL_FAM6_ALDERLAKE:
-       case INTEL_FAM6_ALDERLAKE_L:
-       case INTEL_FAM6_ATOM_GRACEMONT:
+       case INTEL_ALDERLAKE:
+       case INTEL_ALDERLAKE_L:
+       case INTEL_ATOM_GRACEMONT:
                adl_idle_state_table_update();
                break;
        }
@@ -1595,12 +1595,16 @@ static void __init mwait_idle_state_table_update(void)
 static int __init mwait_idle_probe(void)
 {
        unsigned int eax, ebx, ecx;
-       const struct x86_cpu_id *id = x86_match_cpu(intel_idle_ids);
+       const struct x86_cpu_id *id;
        const char *str;
 
+       if (boot_cpu_data.vendor != X86_VENDOR_INTEL)
+               return -ENODEV;
+
+       id = x86_match_cpu(intel_idle_ids);
        if (!id) {
                pr_debug(PREFIX "does not run on family %d model %d\n",
-                        boot_cpu_data.x86, boot_cpu_data.x86_model);
+                        boot_cpu_data.family, boot_cpu_data.model);
                return -ENODEV;
        }
 
-- 
2.39.5