From: Arun Sharma <arun.sharma@intel.com>
To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>,
Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Cc: xen-devel@lists.xensource.com, xen-ia64-devel@lists.xensource.com
Subject: [PATCH] runtime-xenelf-check.patch
Date: Wed, 11 May 2005 11:51:46 -0700 [thread overview]
Message-ID: <20050511185146.GA31354@intel.com> (raw)
Permit both paravirtualized (i.e. with __xen_guest section) and fully virtualized kernels as domain 0.
Currently this is decided at compile time, we'd like to make it a runtime check.
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>
--- 1.19/xen/common/elf.c 2005-04-03 04:22:10 -07:00
+++ edited/xen/common/elf.c 2005-05-11 11:35:24 -07:00
@@ -11,12 +11,6 @@
#include <xen/elf.h>
#include <xen/sched.h>
-#ifdef CONFIG_X86
-#define FORCE_XENELF_IMAGE 1
-#elif defined(__ia64__)
-#define FORCE_XENELF_IMAGE 0
-#endif
-
static void loadelfsymtab(struct domain_setup_info *dsi, int doload);
static inline int is_loadable_phdr(Elf_Phdr *phdr)
{
@@ -88,9 +82,12 @@
if ( guestinfo == NULL )
{
printk("Not a Xen-ELF image: '__xen_guest' section not found.\n");
-#if FORCE_XENELF_IMAGE
+ dsi->xen_elf_image = 0;
+#if CONFIG_FORCE_XENELF_IMAGE
return -EINVAL;
#endif
+ } else {
+ dsi->xen_elf_image = 1;
}
for ( h = 0; h < ehdr->e_phnum; h++ )
===== xen/include/asm-ia64/config.h 1.23 vs edited =====
--- 1.23/xen/include/asm-ia64/config.h 2005-05-10 15:58:26 -07:00
+++ edited/xen/include/asm-ia64/config.h 2005-05-11 11:43:03 -07:00
@@ -9,6 +9,7 @@
// defined in linux/arch/ia64/defconfig
//#define CONFIG_IA64_GENERIC
+#define CONFIG_FORCE_XENELF_IMAGE 0
#define CONFIG_IA64_HP_SIM
#define CONFIG_IA64_L1_CACHE_SHIFT 7
// needed by include/asm-ia64/page.h
===== xen/include/asm-x86/config.h 1.51 vs edited =====
--- 1.51/xen/include/asm-x86/config.h 2005-05-09 10:50:07 -07:00
+++ edited/xen/include/asm-x86/config.h 2005-05-11 11:35:26 -07:00
@@ -11,6 +11,7 @@
#define CONFIG_X86 1
#define CONFIG_SHADOW 1
+#define CONFIG_FORCE_XENELF_IMAGE 1
#define CONFIG_SMP 1
#define CONFIG_X86_LOCAL_APIC 1
===== xen/include/xen/sched.h 1.175 vs edited =====
--- 1.175/xen/include/xen/sched.h 2005-05-11 07:12:02 -07:00
+++ edited/xen/include/xen/sched.h 2005-05-11 11:35:25 -07:00
@@ -163,6 +163,8 @@
unsigned int load_symtab;
unsigned long symtab_addr;
unsigned long symtab_len;
+ /* Indicate whether it's xen specific image */
+ unsigned int xen_elf_image;
};
#include <asm/uaccess.h> /* for KERNEL_DS */
reply other threads:[~2005-05-11 18:51 UTC|newest]
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