[xen staging] x86/time: gtsc_to_gtime() is HVM-only

[patchbot@xxxxxxx]

commit 91c5bbbb912931e0a1d694d358a86a85d653535b
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Wed Jan 14 14:48:47 2026 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Jan 14 14:48:47 2026 +0100

    x86/time: gtsc_to_gtime() is HVM-only
    
    Omit the function when HVM=n. With that the !HVM logic can also go away;
    leave an assertion.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/arch/x86/time.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index 0bfad0f634..c5005a0360 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86/time.c
@@ -2837,14 +2837,13 @@ uint64_t gtime_to_gtsc(const struct domain *d, uint64_t 
time)
     return scale_delta(time, &d->arch.ns_to_vtsc);
 }
 
+#ifdef CONFIG_HVM
 uint64_t gtsc_to_gtime(const struct domain *d, uint64_t tsc)
 {
-    u64 time = scale_delta(tsc, &d->arch.vtsc_to_ns);
-
-    if ( !is_hvm_domain(d) )
-        time += d->arch.vtsc_offset;
-    return time;
+    ASSERT(is_hvm_domain(d));
+    return scale_delta(tsc, &d->arch.vtsc_to_ns);
 }
+#endif /* CONFIG_HVM */
 
 uint64_t pv_soft_rdtsc(const struct vcpu *v, const struct cpu_user_regs *regs)
 {
--
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