[Xen-devel] [PATCH v3 2/2] x86/spec-ctrl: split reporting for PV and HVM guests

["Jan Beulich" <JBeulich@xxxxxxxx>]

Putting them on separate lines was suggested before, and is going to
become necessary eventually anyway as things get added here. Split them
now, and put the respective pieces in CONFIG_* conditionals at the same
time.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
v2: New.

--- a/xen/arch/x86/spec_ctrl.c
+++ b/xen/arch/x86/spec_ctrl.c
@@ -329,13 +329,8 @@ static void __init print_details(enum in
      * Alternatives blocks for protecting against and/or virtualising
      * mitigation support for guests.
      */
-    printk("  Support for VMs: PV:%s%s%s%s, HVM:%s%s%s%s\n",
-           (boot_cpu_has(X86_FEATURE_SC_MSR_PV) ||
-            boot_cpu_has(X86_FEATURE_SC_RSB_PV) ||
-            opt_eager_fpu)                           ? ""               : " 
None",
-           boot_cpu_has(X86_FEATURE_SC_MSR_PV)       ? " MSR_SPEC_CTRL" : "",
-           boot_cpu_has(X86_FEATURE_SC_RSB_PV)       ? " RSB"           : "",
-           opt_eager_fpu                             ? " EAGER_FPU"     : "",
+#ifdef CONFIG_HVM
+    printk("  Support for HVM VMs:%s%s%s%s\n",
            (boot_cpu_has(X86_FEATURE_SC_MSR_HVM) ||
             boot_cpu_has(X86_FEATURE_SC_RSB_HVM) ||
             opt_eager_fpu)                           ? ""               : " 
None",
@@ -343,7 +338,16 @@ static void __init print_details(enum in
            boot_cpu_has(X86_FEATURE_SC_RSB_HVM)      ? " RSB"           : "",
            opt_eager_fpu                             ? " EAGER_FPU"     : "");
 
+#endif
 #ifdef CONFIG_PV
+    printk("  Support for PV VMs:%s%s%s%s\n",
+           (boot_cpu_has(X86_FEATURE_SC_MSR_PV) ||
+            boot_cpu_has(X86_FEATURE_SC_RSB_PV) ||
+            opt_eager_fpu)                           ? ""               : " 
None",
+           boot_cpu_has(X86_FEATURE_SC_MSR_PV)       ? " MSR_SPEC_CTRL" : "",
+           boot_cpu_has(X86_FEATURE_SC_RSB_PV)       ? " RSB"           : "",
+           opt_eager_fpu                             ? " EAGER_FPU"     : "");
+
     printk("  XPTI (64-bit PV only): Dom0 %s, DomU %s (with%s PCID)\n",
            opt_xpti & OPT_XPTI_DOM0 ? "enabled" : "disabled",
            opt_xpti & OPT_XPTI_DOMU ? "enabled" : "disabled",




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