xen/x86: hook up xen_banner() also for PVH

This was effectively lost while dropping PVHv1 code. Move the function
and arrange for it to be called the same way as done in PV mode. Clearly
this then needs re-introducing the XENFEAT_mmu_pt_update_preserve_ad
check that was recently removed, as that's a PV-only feature.

Since the string pointed at by pv_info.name describes the mode, drop
"paravirtualized" from the log message while moving the code.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/de03054d-a20d-2114-bb86-eec28e17b3b8@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c5b1fd6..57efb48 100644 (file)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -261,6 +261,20 @@ int xen_vcpu_setup(int cpu)
        return ((per_cpu(xen_vcpu, cpu) == NULL) ? -ENODEV : 0);
 }
 
+void __init xen_banner(void)
+{
+       unsigned version = HYPERVISOR_xen_version(XENVER_version, NULL);
+       struct xen_extraversion extra;
+
+       HYPERVISOR_xen_version(XENVER_extraversion, &extra);
+
+       pr_info("Booting kernel on %s\n", pv_info.name);
+       pr_info("Xen version: %u.%u%s%s\n",
+               version >> 16, version & 0xffff, extra.extraversion,
+               xen_feature(XENFEAT_mmu_pt_update_preserve_ad)
+               ? " (preserve-AD)" : "");
+}
+
 /* Check if running on Xen version (major, minor) or later */
 bool xen_running_on_version_or_later(unsigned int major, unsigned int minor)
 {

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index fb3095b..a7b7d67 100644 (file)
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -108,17 +108,6 @@ struct tls_descs {
  */
 static DEFINE_PER_CPU(struct tls_descs, shadow_tls_desc);
 
-static void __init xen_banner(void)
-{
-       unsigned version = HYPERVISOR_xen_version(XENVER_version, NULL);
-       struct xen_extraversion extra;
-       HYPERVISOR_xen_version(XENVER_extraversion, &extra);
-
-       pr_info("Booting paravirtualized kernel on %s\n", pv_info.name);
-       pr_info("Xen version: %d.%d%s (preserve-AD)\n",
-               version >> 16, version & 0xffff, extra.extraversion);
-}
-
 static void __init xen_pv_init_platform(void)
 {
        populate_extra_pte(fix_to_virt(FIX_PARAVIRT_BOOTMAP));

diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c
index 9029c5a..b20bd54 100644 (file)
--- a/arch/x86/xen/enlighten_pvh.c
+++ b/arch/x86/xen/enlighten_pvh.c
@@ -38,6 +38,7 @@ void __init xen_pvh_init(struct boot_params *boot_params)
 
        if (xen_initial_domain())
                x86_init.oem.arch_setup = xen_add_preferred_consoles;
+       x86_init.oem.banner = xen_banner;
 
        xen_efi_init(boot_params);
 }

diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 524d124..8bc8b72 100644 (file)
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -51,6 +51,7 @@ void __init xen_remap_memory(void);
 phys_addr_t __init xen_find_free_area(phys_addr_t size);
 char * __init xen_memory_setup(void);
 void __init xen_arch_setup(void);
+void xen_banner(void);
 void xen_enable_sysenter(void);
 void xen_enable_syscall(void);
 void xen_vcpu_restore(void);