[PATCH v1] x86/domain: revisit logging in arch_domain_create()

[dmkhn@xxxxxxxxx]

From: Denis Mukhin <dmukhin@xxxxxxxx>

Use %pd in all logs issued from arch_domain_create().

Also, expand error message in arch_domain_create() under
!emulation_flags_ok() case to help debugging.

Signed-off-by: Denis Mukhin <dmukhin@xxxxxxxx>
---
The origin of the patch is:
  
https://lore.kernel.org/xen-devel/20250103-vuart-ns8250-v3-v1-6-c5d36b31d66c@xxxxxxxx/
---
 xen/arch/x86/domain.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
index a42fa54805..15c5e2a652 100644
--- a/xen/arch/x86/domain.c
+++ b/xen/arch/x86/domain.c
@@ -798,13 +798,12 @@ int arch_domain_create(struct domain *d,
     {
         if ( !opt_allow_unsafe )
         {
-            printk(XENLOG_G_ERR "Xen does not allow DomU creation on this CPU"
-                   " for security reasons.\n");
+            printk(XENLOG_G_ERR "%pd: Xen does not allow DomU creation on this 
CPU"
+                   " for security reasons.\n", d);
             return -EPERM;
         }
         printk(XENLOG_G_WARNING
-               "Dom%d may compromise security on this CPU.\n",
-               d->domain_id);
+               "%pd: domain may compromise security on this CPU.\n", d);
     }
 
     emflags = config->arch.emulation_flags;
@@ -814,16 +813,19 @@ int arch_domain_create(struct domain *d,
 
     if ( emflags & ~XEN_X86_EMU_ALL )
     {
-        printk(XENLOG_G_ERR "d%d: Invalid emulation bitmap: %#x\n",
-               d->domain_id, emflags);
+        printk(XENLOG_G_ERR "%pd: Invalid emulation bitmap: %#x\n",
+               d, emflags);
         return -EINVAL;
     }
 
     if ( !emulation_flags_ok(d, emflags) )
     {
-        printk(XENLOG_G_ERR "d%d: Xen does not allow %s domain creation "
+        printk(XENLOG_G_ERR "%pd: Xen does not allow %s %sdomain creation "
                "with the current selection of emulators: %#x\n",
-               d->domain_id, is_hvm_domain(d) ? "HVM" : "PV", emflags);
+               d,
+               is_hvm_domain(d) ? "HVM" : "PV",
+               is_hardware_domain(d) ? "(hardware) " : "",
+               emflags);
         return -EOPNOTSUPP;
     }
     d->arch.emulation_flags = emflags;
-- 
2.34.1