[Xen-changelog] [xen stable-4.12] x86/spec-ctrl: Reposition the XPTI command line parsing logic

[patchbot@xxxxxxx]

commit 143712dc2bec7cb1eb69671ba6efcd0dea97496d
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Wed Sep 12 14:36:00 2018 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue May 14 15:30:35 2019 +0100

    x86/spec-ctrl: Reposition the XPTI command line parsing logic
    
    It has ended up in the middle of the mitigation calculation logic.  Move it 
to
    be beside the other command line parsing.
    
    No functional change.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit c2c2bb0d60c642e64a5243a79c8b1548ffb7bc5b)
---
 xen/arch/x86/spec_ctrl.c | 134 +++++++++++++++++++++++------------------------
 1 file changed, 67 insertions(+), 67 deletions(-)

diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c
index 1171c02ab1..99310c8c86 100644
--- a/xen/arch/x86/spec_ctrl.c
+++ b/xen/arch/x86/spec_ctrl.c
@@ -167,6 +167,73 @@ static int __init parse_spec_ctrl(const char *s)
 }
 custom_param("spec-ctrl", parse_spec_ctrl);
 
+int8_t __read_mostly opt_xpti_hwdom = -1;
+int8_t __read_mostly opt_xpti_domu = -1;
+
+static __init void xpti_init_default(uint64_t caps)
+{
+    if ( boot_cpu_data.x86_vendor == X86_VENDOR_AMD )
+        caps = ARCH_CAPS_RDCL_NO;
+
+    if ( caps & ARCH_CAPS_RDCL_NO )
+    {
+        if ( opt_xpti_hwdom < 0 )
+            opt_xpti_hwdom = 0;
+        if ( opt_xpti_domu < 0 )
+            opt_xpti_domu = 0;
+    }
+    else
+    {
+        if ( opt_xpti_hwdom < 0 )
+            opt_xpti_hwdom = 1;
+        if ( opt_xpti_domu < 0 )
+            opt_xpti_domu = 1;
+    }
+}
+
+static __init int parse_xpti(const char *s)
+{
+    const char *ss;
+    int val, rc = 0;
+
+    /* Interpret 'xpti' alone in its positive boolean form. */
+    if ( *s == '\0' )
+        opt_xpti_hwdom = opt_xpti_domu = 1;
+
+    do {
+        ss = strchr(s, ',');
+        if ( !ss )
+            ss = strchr(s, '\0');
+
+        switch ( parse_bool(s, ss) )
+        {
+        case 0:
+            opt_xpti_hwdom = opt_xpti_domu = 0;
+            break;
+
+        case 1:
+            opt_xpti_hwdom = opt_xpti_domu = 1;
+            break;
+
+        default:
+            if ( !strcmp(s, "default") )
+                opt_xpti_hwdom = opt_xpti_domu = -1;
+            else if ( (val = parse_boolean("dom0", s, ss)) >= 0 )
+                opt_xpti_hwdom = val;
+            else if ( (val = parse_boolean("domu", s, ss)) >= 0 )
+                opt_xpti_domu = val;
+            else if ( *s )
+                rc = -EINVAL;
+            break;
+        }
+
+        s = ss + 1;
+    } while ( *ss );
+
+    return rc;
+}
+custom_param("xpti", parse_xpti);
+
 int8_t __read_mostly opt_pv_l1tf_hwdom = -1;
 int8_t __read_mostly opt_pv_l1tf_domu = -1;
 
@@ -627,73 +694,6 @@ static __init void l1tf_calculations(uint64_t caps)
                                             : (3ul << (paddr_bits - 2))));
 }
 
-int8_t __read_mostly opt_xpti_hwdom = -1;
-int8_t __read_mostly opt_xpti_domu = -1;
-
-static __init void xpti_init_default(uint64_t caps)
-{
-    if ( boot_cpu_data.x86_vendor == X86_VENDOR_AMD )
-        caps = ARCH_CAPS_RDCL_NO;
-
-    if ( caps & ARCH_CAPS_RDCL_NO )
-    {
-        if ( opt_xpti_hwdom < 0 )
-            opt_xpti_hwdom = 0;
-        if ( opt_xpti_domu < 0 )
-            opt_xpti_domu = 0;
-    }
-    else
-    {
-        if ( opt_xpti_hwdom < 0 )
-            opt_xpti_hwdom = 1;
-        if ( opt_xpti_domu < 0 )
-            opt_xpti_domu = 1;
-    }
-}
-
-static __init int parse_xpti(const char *s)
-{
-    const char *ss;
-    int val, rc = 0;
-
-    /* Interpret 'xpti' alone in its positive boolean form. */
-    if ( *s == '\0' )
-        opt_xpti_hwdom = opt_xpti_domu = 1;
-
-    do {
-        ss = strchr(s, ',');
-        if ( !ss )
-            ss = strchr(s, '\0');
-
-        switch ( parse_bool(s, ss) )
-        {
-        case 0:
-            opt_xpti_hwdom = opt_xpti_domu = 0;
-            break;
-
-        case 1:
-            opt_xpti_hwdom = opt_xpti_domu = 1;
-            break;
-
-        default:
-            if ( !strcmp(s, "default") )
-                opt_xpti_hwdom = opt_xpti_domu = -1;
-            else if ( (val = parse_boolean("dom0", s, ss)) >= 0 )
-                opt_xpti_hwdom = val;
-            else if ( (val = parse_boolean("domu", s, ss)) >= 0 )
-                opt_xpti_domu = val;
-            else if ( *s )
-                rc = -EINVAL;
-            break;
-        }
-
-        s = ss + 1;
-    } while ( *ss );
-
-    return rc;
-}
-custom_param("xpti", parse_xpti);
-
 void __init init_speculation_mitigations(void)
 {
     enum ind_thunk thunk = THUNK_DEFAULT;
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.12

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