x86/spec-ctrl: Print all AMD speculative hints/features

We already print Intel features that aren't yet implemented/used, so be
consistent on AMD too.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
master commit: 3d189f16a11d5a209fb47fa3635847608d43745c
master date: 2021-09-09 12:36:17 +0100

diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c
index e0e468783c5afc96530b3d7e0972573215c3008c..7e0c171dc835460918caf3e28676413408f30369 100644 (file)
--- a/xen/arch/x86/spec_ctrl.c
+++ b/xen/arch/x86/spec_ctrl.c
@@ -321,7 +321,7 @@ static void __init print_details(enum ind_thunk thunk, uint64_t caps)
      * Hardware read-only information, stating immunity to certain issues, or
      * suggestions of which mitigation to use.
      */
-    printk("  Hardware hints:%s%s%s%s%s%s%s\n",
+    printk("  Hardware hints:%s%s%s%s%s%s%s%s%s%s%s\n",
            (caps & ARCH_CAPS_RDCL_NO)                        ? " RDCL_NO"        : "",
            (caps & ARCH_CAPS_IBRS_ALL)                       ? " IBRS_ALL"       : "",
            (caps & ARCH_CAPS_RSBA)                           ? " RSBA"           : "",
@@ -329,16 +329,23 @@ static void __init print_details(enum ind_thunk thunk, uint64_t caps)
            (e8b  & cpufeat_mask(X86_FEATURE_SSB_NO)) ||
            (caps & ARCH_CAPS_SSB_NO)                         ? " SSB_NO"         : "",
            (caps & ARCH_CAPS_MDS_NO)                         ? " MDS_NO"         : "",
-           (caps & ARCH_CAPS_TAA_NO)                         ? " TAA_NO"         : "");
+           (caps & ARCH_CAPS_TAA_NO)                         ? " TAA_NO"         : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_IBRS_ALWAYS))    ? " IBRS_ALWAYS"    : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_STIBP_ALWAYS))   ? " STIBP_ALWAYS"   : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_IBRS_FAST))      ? " IBRS_FAST"      : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_IBRS_SAME_MODE)) ? " IBRS_SAME_MODE" : "");
 
     /* Hardware features which need driving to mitigate issues. */
-    printk("  Hardware features:%s%s%s%s%s%s%s%s%s\n",
+    printk("  Hardware features:%s%s%s%s%s%s%s%s%s%s\n",
            (e8b  & cpufeat_mask(X86_FEATURE_IBPB)) ||
            (_7d0 & cpufeat_mask(X86_FEATURE_IBRSB))          ? " IBPB"           : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_IBRS)) ||
            (_7d0 & cpufeat_mask(X86_FEATURE_IBRSB))          ? " IBRS"           : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_AMD_STIBP)) ||
            (_7d0 & cpufeat_mask(X86_FEATURE_STIBP))          ? " STIBP"          : "",
            (e8b  & cpufeat_mask(X86_FEATURE_AMD_SSBD)) ||
            (_7d0 & cpufeat_mask(X86_FEATURE_SSBD))           ? " SSBD"           : "",
+           (e8b  & cpufeat_mask(X86_FEATURE_PSFD))           ? " PSFD"           : "",
            (_7d0 & cpufeat_mask(X86_FEATURE_L1D_FLUSH))      ? " L1D_FLUSH"      : "",
            (_7d0 & cpufeat_mask(X86_FEATURE_MD_CLEAR))       ? " MD_CLEAR"       : "",
            (_7d0 & cpufeat_mask(X86_FEATURE_SRBDS_CTRL))     ? " SRBDS_CTRL"     : "",