WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] [patch] [do-over] load 64-bit files with 32-bit tools

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] [patch] [do-over] load 64-bit files with 32-bit tools
From: Hollis Blanchard <hollisb@xxxxxxxxxx>
Date: Fri, 30 Jun 2006 15:16:24 -0500
Cc: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Fri, 30 Jun 2006 13:16:18 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <590ee4a2b91ad8042c8f0c5029f45c63@xxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Organization: IBM Linux Technology Center
References: <E1FtUGC-00078Q-SO@xxxxxxxxxxxxxxxxxxxxx> <590ee4a2b91ad8042c8f0c5029f45c63@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On Thu, 2006-06-22 at 21:13 +0100, Keir Fraser wrote:
> On 22 Jun 2006, at 19:50, Jimi Xenidis wrote:
> 
> > +    unsigned long long v_start;
> > +    unsigned long long v_end;
> > +    unsigned long long v_kernstart;
> > +    unsigned long long v_kernend;
> > +    unsigned long long v_kernentry;
> > +
> > +    unsigned long long elf_paddr_offset;
> 
> I liked these as uint64_t. Why the change?

Allow 32-bit libxc to load 64-bit ELF files.
- use 64-bit integral types for addresses in struct domain_start_info
- use stroull() to parse 64-bit values
- remove redundant _p(a) definition and add a comment
- printf format changes for the new types

Signed-off-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>

diff -r 17e9daeb2c50 tools/libxc/xc_hvm_build.c
--- a/tools/libxc/xc_hvm_build.c        Fri Jun 30 14:41:13 2006 +0100
+++ b/tools/libxc/xc_hvm_build.c        Fri Jun 30 15:02:28 2006 -0500
@@ -208,11 +208,11 @@ static int setup_guest(int xc_handle,
     v_end = (unsigned long long)memsize << 20;
 
     IPRINTF("VIRTUAL MEMORY ARRANGEMENT:\n"
-           "  Loaded HVM loader:    %08lx->%08lx\n"
-           "  TOTAL:                %08lx->%016llx\n",
+           "  Loaded HVM loader:    %016llx->%016llx\n"
+           "  TOTAL:                %016llx->%016llx\n",
            dsi.v_kernstart, dsi.v_kernend,
            dsi.v_start, v_end);
-    IPRINTF("  ENTRY ADDRESS:        %08lx\n", dsi.v_kernentry);
+    IPRINTF("  ENTRY ADDRESS:        %016llx\n", dsi.v_kernentry);
 
     if ( (v_end - dsi.v_start) > ((unsigned long long)nr_pages << PAGE_SHIFT) )
     {
diff -r 17e9daeb2c50 tools/libxc/xc_linux_build.c
--- a/tools/libxc/xc_linux_build.c      Fri Jun 30 14:41:13 2006 +0100
+++ b/tools/libxc/xc_linux_build.c      Fri Jun 30 15:02:28 2006 -0500
@@ -11,6 +11,9 @@
 #include <unistd.h>
 #include <inttypes.h>
 #include <zlib.h>
+
+/* Handy for printing out '0' prepended values at native pointer size */
+#define _p(a) ((void *) ((ulong)a))
 
 #if defined(__i386__)
 #define L1_PROT (_PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED)
@@ -502,8 +505,6 @@ static int setup_guest(int xc_handle,
         goto error_out;
     }
 
-#define _p(a) ((void *) (a))
-
     IPRINTF("VIRTUAL MEMORY ARRANGEMENT:\n"
            " Loaded kernel: %p->%p\n"
            " Init. ramdisk: %p->%p\n"
@@ -797,8 +798,6 @@ static int setup_guest(int xc_handle,
 #endif
     }
 
-#define _p(a) ((void *) (a))
-
     IPRINTF("VIRTUAL MEMORY ARRANGEMENT:\n");
     IPRINTF(" Loaded kernel:    %p->%p\n", _p(dsi.v_kernstart),
            _p(dsi.v_kernend));
@@ -819,8 +818,8 @@ static int setup_guest(int xc_handle,
     if ( ((v_end - dsi.v_start)>>PAGE_SHIFT) > nr_pages )
     {
         PERROR("Initial guest OS requires too much space\n"
-               "(%luMB is greater than %luMB limit)\n",
-               (v_end-dsi.v_start)>>20, nr_pages>>(20-PAGE_SHIFT));
+               "(%pMB is greater than %luMB limit)\n",
+               _p((v_end-dsi.v_start)>>20), nr_pages>>(20-PAGE_SHIFT));
         goto error_out;
     }
 
diff -r 17e9daeb2c50 tools/libxc/xc_load_elf.c
--- a/tools/libxc/xc_load_elf.c Fri Jun 30 14:41:13 2006 +0100
+++ b/tools/libxc/xc_load_elf.c Fri Jun 30 15:02:28 2006 -0500
@@ -162,12 +162,12 @@ static int parseelfimage(const char *ima
     /* Initial guess for virt_base is 0 if it is not explicitly defined. */
     p = strstr(guestinfo, "VIRT_BASE=");
     virt_base_defined = (p != NULL);
-    virt_base = virt_base_defined ? strtoul(p+10, &p, 0) : 0;
+    virt_base = virt_base_defined ? strtoull(p+10, &p, 0) : 0;
 
     /* Initial guess for elf_pa_off is virt_base if not explicitly defined. */
     p = strstr(guestinfo, "ELF_PADDR_OFFSET=");
     elf_pa_off_defined = (p != NULL);
-    elf_pa_off = elf_pa_off_defined ? strtoul(p+17, &p, 0) : virt_base;
+    elf_pa_off = elf_pa_off_defined ? strtoull(p+17, &p, 0) : virt_base;
 
     if ( elf_pa_off_defined && !virt_base_defined )
         goto bad_image;
@@ -196,7 +196,7 @@ static int parseelfimage(const char *ima
 
     dsi->v_kernentry = ehdr->e_entry;
     if ( (p = strstr(guestinfo, "VIRT_ENTRY=")) != NULL )
-        dsi->v_kernentry = strtoul(p+11, &p, 0);
+        dsi->v_kernentry = strtoull(p+11, &p, 0);
 
     if ( (kernstart > kernend) ||
          (dsi->v_kernentry < kernstart) ||
diff -r 17e9daeb2c50 tools/libxc/xg_private.h
--- a/tools/libxc/xg_private.h  Fri Jun 30 14:41:13 2006 +0100
+++ b/tools/libxc/xg_private.h  Fri Jun 30 15:02:28 2006 -0500
@@ -132,13 +132,13 @@ typedef unsigned long l4_pgentry_t;
 
 struct domain_setup_info
 {
-    unsigned long v_start;
-    unsigned long v_end;
-    unsigned long v_kernstart;
-    unsigned long v_kernend;
-    unsigned long v_kernentry;
-
-    unsigned long elf_paddr_offset;
+    uint64_t v_start;
+    uint64_t v_end;
+    uint64_t v_kernstart;
+    uint64_t v_kernend;
+    uint64_t v_kernentry;
+
+    uint64_t elf_paddr_offset;
 
 #define PAEKERN_no           0
 #define PAEKERN_yes          1


-- 
Hollis Blanchard
IBM Linux Technology Center


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>