x86/paravirt: Prevent rtc_cmos platform device init on PV guests

[cascardo/linux.git] / arch / x86 / xen / enlighten.c

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index d315151..b7de78b 100644 (file)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1192,7 +1192,7 @@ static const struct pv_info xen_info __initconst = {
 #ifdef CONFIG_X86_64
        .extra_user_64bit_cs = FLAT_USER_CS64,
 #endif
-
+       .features = 0,
        .name = "Xen",
 };
 
@@ -1535,6 +1535,8 @@ asmlinkage __visible void __init xen_start_kernel(void)
 
        /* Install Xen paravirt ops */
        pv_info = xen_info;
+       if (xen_initial_domain())
+               pv_info.features |= PV_SUPPORTED_RTC;
        pv_init_ops = xen_init_ops;
        pv_apic_ops = xen_apic_ops;
        if (!xen_pvh_domain()) {