[PATCH v4 30/44] x86/boot: convert dom0_construct_pv initrd param to struct boot_module

["Daniel P. Smith" <dpsmith@apertussolutions.com>]

This changes the type for the initrd parameter of dom0_construct_pv to be struct
boot_module. This conversion requires several adjustments throughout dom0_construct_pv
to account for the type change. Removes the usage of early_mod field for ramdisk module.

Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
---
 xen/arch/x86/dom0_build.c             |  2 +-
 xen/arch/x86/include/asm/dom0_build.h |  2 +-
 xen/arch/x86/pv/dom0_build.c          | 19 ++++++++++---------
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/xen/arch/x86/dom0_build.c b/xen/arch/x86/dom0_build.c
index 42043230faff..c39588b346b0 100644
--- a/xen/arch/x86/dom0_build.c
+++ b/xen/arch/x86/dom0_build.c
@@ -612,7 +612,7 @@ int __init construct_dom0(struct domain *d, const struct boot_module *image,
     if ( is_hvm_domain(d) )
         rc = dom0_construct_pvh(d, image->early_mod, image->headroom, initrd->early_mod, cmdline);
     else if ( is_pv_domain(d) )
-        rc = dom0_construct_pv(d, image, initrd->early_mod, cmdline);
+        rc = dom0_construct_pv(d, image, initrd, cmdline);
     else
         panic("Cannot construct Dom0. No guest interface available\n");
 
diff --git a/xen/arch/x86/include/asm/dom0_build.h b/xen/arch/x86/include/asm/dom0_build.h
index a1f36f7d360d..2ce5ea3851af 100644
--- a/xen/arch/x86/include/asm/dom0_build.h
+++ b/xen/arch/x86/include/asm/dom0_build.h
@@ -15,7 +15,7 @@ int dom0_setup_permissions(struct domain *d);
 
 int dom0_construct_pv(
     struct domain *d, const struct boot_module *image,
-    module_t *initrd, const char *cmdline);
+    struct boot_module *initrd, const char *cmdline);
 
 int dom0_construct_pvh(struct domain *d, const module_t *image,
                        unsigned long image_headroom,
diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c
index db908ddb78b5..dce62d76e41e 100644
--- a/xen/arch/x86/pv/dom0_build.c
+++ b/xen/arch/x86/pv/dom0_build.c
@@ -356,7 +356,7 @@ static struct page_info * __init alloc_chunk(struct domain *d,
 
 int __init dom0_construct_pv(struct domain *d,
                              const struct boot_module *image,
-                             module_t *initrd,
+                             struct boot_module *initrd,
                              const char *cmdline)
 {
     int i, rc, order, machine;
@@ -376,7 +376,7 @@ int __init dom0_construct_pv(struct domain *d,
     void *image_base = bootstrap_map_bm(image);
     unsigned long image_len = image->size;
     void *image_start = image_base + image->headroom;
-    unsigned long initrd_len = initrd ? initrd->mod_end : 0;
+    unsigned long initrd_len = initrd ? initrd->size : 0;
     l4_pgentry_t *l4tab = NULL, *l4start = NULL;
     l3_pgentry_t *l3tab = NULL, *l3start = NULL;
     l2_pgentry_t *l2tab = NULL, *l2start = NULL;
@@ -612,7 +612,7 @@ int __init dom0_construct_pv(struct domain *d,
         initrd_pfn = vinitrd_start ?
                      (vinitrd_start - v_start) >> PAGE_SHIFT :
                      domain_tot_pages(d);
-        initrd_mfn = mfn = initrd->mod_start;
+        initrd_mfn = mfn = initrd->start >> PAGE_SHIFT;
         count = PFN_UP(initrd_len);
         if ( d->arch.physaddr_bitsize &&
              ((mfn + count - 1) >> (d->arch.physaddr_bitsize - PAGE_SHIFT)) )
@@ -627,12 +627,13 @@ int __init dom0_construct_pv(struct domain *d,
                     free_domheap_pages(page, order);
                     page += 1UL << order;
                 }
-            memcpy(page_to_virt(page), mfn_to_virt(initrd->mod_start),
+            memcpy(page_to_virt(page), maddr_to_virt(initrd->start),
                    initrd_len);
-            mpt_alloc = (paddr_t)initrd->mod_start << PAGE_SHIFT;
+            mpt_alloc = initrd->start;
             init_domheap_pages(mpt_alloc,
                                mpt_alloc + PAGE_ALIGN(initrd_len));
-            initrd->mod_start = initrd_mfn = mfn_x(page_to_mfn(page));
+            initrd_mfn = mfn_x(page_to_mfn(page));
+            initrd->start = initrd_mfn << PAGE_SHIFT;
         }
         else
         {
@@ -640,7 +641,7 @@ int __init dom0_construct_pv(struct domain *d,
                 if ( assign_pages(mfn_to_page(_mfn(mfn++)), 1, d, 0) )
                     BUG();
         }
-        initrd->mod_end = 0;
+        initrd->size = initrd->early_mod->mod_end = 0;
 
         iommu_memory_setup(d, "initrd", mfn_to_page(_mfn(initrd_mfn)),
                            PFN_UP(initrd_len), &flush_flags);
@@ -654,7 +655,7 @@ int __init dom0_construct_pv(struct domain *d,
                nr_pages - domain_tot_pages(d));
     if ( initrd )
     {
-        mpt_alloc = (paddr_t)initrd->mod_start << PAGE_SHIFT;
+        mpt_alloc = initrd->start;
         printk("\n Init. ramdisk: %"PRIpaddr"->%"PRIpaddr,
                mpt_alloc, mpt_alloc + initrd_len);
     }
@@ -882,7 +883,7 @@ int __init dom0_construct_pv(struct domain *d,
         if ( pfn >= initrd_pfn )
         {
             if ( pfn < initrd_pfn + PFN_UP(initrd_len) )
-                mfn = initrd->mod_start + (pfn - initrd_pfn);
+                mfn = (initrd->start >> PAGE_SHIFT) + (pfn - initrd_pfn);
             else
                 mfn -= PFN_UP(initrd_len);
         }
-- 
2.30.2