[xen staging] x86/cpu: Drop default_init() and default_cpu

[patchbot@xxxxxxx]

commit 63ddf5027fb229c42653df27579eab97dc8e9564
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Jan 19 11:27:12 2026 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Sat Apr 4 12:20:11 2026 +0200

    x86/cpu: Drop default_init() and default_cpu
    
    While the comment is reasonable, clearing SEP as the only action for an
    unknown CPU is useless.  Drop the infrastructure.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/cpu/common.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/xen/arch/x86/cpu/common.c b/xen/arch/x86/cpu/common.c
index 444aa9cb4d..dd88694a72 100644
--- a/xen/arch/x86/cpu/common.c
+++ b/xen/arch/x86/cpu/common.c
@@ -99,15 +99,6 @@ bool __init is_forced_cpu_cap(unsigned int cap)
        return test_bit(cap, forced_caps) || test_bit(cap, cleared_caps);
 }
 
-static void cf_check default_init(struct cpuinfo_x86 * c)
-{
-       /* Not much we can do here... */
-       __clear_bit(X86_FEATURE_SEP, c->x86_capability);
-}
-
-static const struct cpu_dev __initconst_cf_clobber __used default_cpu = {
-       .c_init = default_init,
-};
 static struct cpu_dev __ro_after_init actual_cpu;
 
 static DEFINE_PER_CPU(uint64_t, msr_misc_features);
@@ -336,7 +327,6 @@ void __init early_cpu_init(bool verbose)
        case X86_VENDOR_SHANGHAI: actual_cpu = shanghai_cpu_dev; break;
        case X86_VENDOR_HYGON:    actual_cpu = hygon_cpu_dev;    break;
        default:
-               actual_cpu = default_cpu;
                if (!verbose)
                        break;
                printk(XENLOG_ERR
--
generated by git-patchbot for /home/xen/git/xen.git#staging