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[PATCH v7 30/38] x86/boot: remove remaining module_t references


  • To: xen-devel@xxxxxxxxxxxxxxxxxxxx
  • From: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>
  • Date: Sun, 20 Oct 2024 20:46:05 -0400
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  • Cc: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, jason.andryuk@xxxxxxx, christopher.w.clark@xxxxxxxxx, stefano.stabellini@xxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Delivery-date: Mon, 21 Oct 2024 00:57:26 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Any direct usages of module_t have been transitioned, remove the remaining
references to the mod field. This also removes any external use of
bootstrap_map(), dropping from setup.h and making it static.

Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
Changes since v6:
- drop efi exclusion check for module memory alignment validation

Changes since v5:
- commit message rewrite
- coding style change
- remove export of bootstrap_map()
---
 xen/arch/x86/include/asm/setup.h |  1 -
 xen/arch/x86/setup.c             | 29 ++++++++++-------------------
 2 files changed, 10 insertions(+), 20 deletions(-)

diff --git a/xen/arch/x86/include/asm/setup.h b/xen/arch/x86/include/asm/setup.h
index 72d183e8a4de..f7958b56eab6 100644
--- a/xen/arch/x86/include/asm/setup.h
+++ b/xen/arch/x86/include/asm/setup.h
@@ -35,7 +35,6 @@ extern struct boot_info xen_boot_info;
 
 unsigned long initial_images_nrpages(nodeid_t node);
 void discard_initial_images(void);
-void *bootstrap_map(const module_t *mod);
 void *bootstrap_map_bm(const struct boot_module *bm);
 
 int remove_xen_ranges(struct rangeset *r);
diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 67e72459170a..2102923cd510 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -350,8 +350,8 @@ unsigned long __init initial_images_nrpages(nodeid_t node)
 
     for ( nr = i = 0; i < bi->nr_modules; ++i )
     {
-        unsigned long start = bi->mods[i].mod->mod_start;
-        unsigned long end = start + PFN_UP(bi->mods[i].mod->mod_end);
+        unsigned long start = bi->mods[i].start;
+        unsigned long end = start + PFN_UP(bi->mods[i].size);
 
         if ( end > node_start && node_end > start )
             nr += min(node_end, end) - max(node_start, start);
@@ -488,7 +488,7 @@ static void *__init bootstrap_map_addr(paddr_t start, 
paddr_t end)
     return ret;
 }
 
-void *__init bootstrap_map(const module_t *mod)
+static void *__init bootstrap_map(const module_t *mod)
 {
     if ( !mod )
         return bootstrap_map_addr(0, 0);
@@ -678,8 +678,8 @@ static uint64_t __init consider_modules(
 
     for ( i = 0; i < nr_mods ; ++i )
     {
-        uint64_t start = pfn_to_paddr(mods[i].mod->mod_start);
-        uint64_t end = start + PAGE_ALIGN(mods[i].mod->mod_end);
+        uint64_t start = (uint64_t)mods[i].start;
+        uint64_t end = start + PAGE_ALIGN(mods[i].size);
 
         if ( i == this_mod )
             continue;
@@ -1399,12 +1399,10 @@ void asmlinkage __init noreturn __start_xen(unsigned 
long mbi_p)
     set_kexec_crash_area_size((u64)nr_pages << PAGE_SHIFT);
     kexec_reserve_area();
 
-    for ( i = 0; !efi_enabled(EFI_LOADER) && i < bi->nr_modules; i++ )
+    for ( i = 0; i < bi->nr_modules; i++ )
     {
-        if ( bi->mods[i].mod->mod_start & (PAGE_SIZE - 1) )
+        if ( bi->mods[i].start & (PAGE_SIZE - 1) )
             panic("Bootloader didn't honor module alignment request\n");
-        bi->mods[i].mod->mod_end -= bi->mods[i].mod->mod_start;
-        bi->mods[i].mod->mod_start >>= PAGE_SHIFT;
     }
 
     /*
@@ -1425,16 +1423,11 @@ void asmlinkage __init noreturn __start_xen(unsigned 
long mbi_p)
          */
         bi->mods[xen].start = virt_to_maddr(_stext);
         bi->mods[xen].size = __2M_rwdata_end - _stext;
-
-        bi->mods[xen].mod->mod_start = paddr_to_pfn(bi->mods[xen].start);
-        bi->mods[xen].mod->mod_end = bi->mods[xen].size;
     }
 
-    bi->mods[0].headroom =
-        bzimage_headroom(bootstrap_map(bi->mods[0].mod),
-                         bi->mods[0].mod->mod_end);
-
-    bootstrap_map(NULL);
+    bi->mods[0].headroom = bzimage_headroom(
+        bootstrap_map_bm(&bi->mods[0]), bi->mods[0].size);
+    bootstrap_map_bm(NULL);
 
 #ifndef highmem_start
     /* Don't allow split below 4Gb. */
@@ -1535,9 +1528,7 @@ void asmlinkage __init noreturn __start_xen(unsigned long 
mbi_p)
             {
                 move_memory(end - size + bm->headroom, bm->start, bm->size);
                 bm->start = (end - size);
-                bm->mod->mod_start = paddr_to_pfn(bm->start);
                 bm->size += bm->headroom;
-                bm->mod->mod_end = bm->size;
                 bm->relocated = true;
             }
         }
-- 
2.30.2




 


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