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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>
This commit is contained in:
Jan Beulich 2021-09-30 14:19:48 +02:00 committed by Juergen Gross
parent 4d1ab432ac
commit 079c4baa2a
4 changed files with 16 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/x86/xen/enlighten.c
View File

@ -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)
{

11
arch/x86/xen/enlighten_pv.c
View File

@ -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));

1
arch/x86/xen/enlighten_pvh.c
View File

@ -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);
}

1
arch/x86/xen/xen-ops.h
View File

@ -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);