[PATCH v6 42/44] x86/boot: convert construct_dom0 to struct boot_domain

["Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>]

A struct boot_domain now encapsulates the domain reference, kernel, ramdisk,
and command line for the domain being constructed. As a result of this
encapsulation, construct_dom0 can now take a single struct boot_domain instead
of these four parameters.

Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
Changes since v5:
- moved back to using variable *d to hold domain reference locally
---
 xen/arch/x86/dom0_build.c        | 8 ++++----
 xen/arch/x86/include/asm/setup.h | 4 +---
 xen/arch/x86/setup.c             | 2 +-
 3 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/xen/arch/x86/dom0_build.c b/xen/arch/x86/dom0_build.c
index 71b2e3afc1a1..34b4943de3b1 100644
--- a/xen/arch/x86/dom0_build.c
+++ b/xen/arch/x86/dom0_build.c
@@ -597,10 +597,10 @@ int __init dom0_setup_permissions(struct domain *d)
     return rc;
 }
 
-int __init construct_dom0(struct domain *d, const struct boot_module *image,
-                          struct boot_module *initrd, const char *cmdline)
+int __init construct_dom0(struct boot_domain *bd)
 {
     int rc;
+    struct domain *d = bd->d;
 
     /* Sanity! */
     BUG_ON(!pv_shim && d->domain_id != 0);
@@ -610,9 +610,9 @@ int __init construct_dom0(struct domain *d, const struct 
boot_module *image,
     process_pending_softirqs();
 
     if ( is_hvm_domain(d) )
-        rc = dom0_construct_pvh(d, image, initrd, cmdline);
+        rc = dom0_construct_pvh(bd->d, bd->kernel, bd->ramdisk, bd->cmdline);
     else if ( is_pv_domain(d) )
-        rc = dom0_construct_pv(d, image, initrd, cmdline);
+        rc = dom0_construct_pv(bd->d, bd->kernel, bd->ramdisk, bd->cmdline);
     else
         panic("Cannot construct Dom0. No guest interface available\n");
 
diff --git a/xen/arch/x86/include/asm/setup.h b/xen/arch/x86/include/asm/setup.h
index f7958b56eab6..b049dc5ee17e 100644
--- a/xen/arch/x86/include/asm/setup.h
+++ b/xen/arch/x86/include/asm/setup.h
@@ -26,9 +26,7 @@ void subarch_init_memory(void);
 
 void init_IRQ(void);
 
-int construct_dom0(
-    struct domain *d, const struct boot_module *image,
-    struct boot_module *initrd, const char *cmdline);
+int construct_dom0(struct boot_domain *d);
 void setup_io_bitmap(struct domain *d);
 
 extern struct boot_info xen_boot_info;
diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 494e48a7c836..d9ad27093611 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1014,7 +1014,7 @@ static struct domain *__init create_dom0(struct boot_info 
*bi)
 
     bd->d = d;
 
-    if ( construct_dom0(d, bd->kernel, bd->ramdisk, bd->cmdline) != 0 )
+    if ( construct_dom0(bd) != 0 )
         panic("Could not construct domain 0\n");
 
     return bd->d;
-- 
2.30.2