[Xen-devel] [PATCH] txt: 5/6 - single tboot entry point for shutdown

["Cihula, Joseph" <joseph.cihula@xxxxxxxxx>]

tboot removed the shutdown_entry32 and shutdown_entry64 from tboot_shared_t and
now has just a single shutdown_entry field.

Signed-off-by: Joseph Cihula <joseph.cihula@xxxxxxxxx>

diff -r feb5e3c4a82d -r bc2e19b70b3d xen/arch/x86/tboot.c
--- a/xen/arch/x86/tboot.c      Fri Jan 16 13:44:38 2009 -0800
+++ b/xen/arch/x86/tboot.c      Fri Jan 16 13:45:37 2009 -0800
@@ -52,8 +52,7 @@ void __init tboot_probe(void)
     printk("TBOOT: found shared page at phys addr %lx:\n", p_tboot_shared);
     printk("  version: %d\n", tboot_shared->version);
     printk("  log_addr: 0x%08x\n", tboot_shared->log_addr);
-    printk("  shutdown_entry32: 0x%08x\n", tboot_shared->shutdown_entry32);
-    printk("  shutdown_entry64: 0x%08x\n", tboot_shared->shutdown_entry64);
+    printk("  shutdown_entry: 0x%08x\n", tboot_shared->shutdown_entry);
     printk("  shutdown_type: %d\n", tboot_shared->shutdown_type);
     printk("  s3_tb_wakeup_entry: 0x%08x\n", tboot_shared->s3_tb_wakeup_entry);
     printk("  s3_k_wakeup_entry: 0x%08x\n", tboot_shared->s3_k_wakeup_entry);
@@ -115,11 +114,7 @@ void tboot_shutdown(uint32_t shutdown_ty

     write_ptbase(idle_vcpu[0]);

-#ifdef __x86_64__
-    asm volatile ( "call *%%rdi" :: "D" (g_tboot_shared->shutdown_entry64) );
-#else
-    asm volatile ( "call *%0" :: "r" (g_tboot_shared->shutdown_entry32) );
-#endif
+    ((void(*)(void))(unsigned long)g_tboot_shared->shutdown_entry)();

     BUG(); /* should not reach here */
 }
diff -r feb5e3c4a82d -r bc2e19b70b3d xen/include/asm-x86/tboot.h
--- a/xen/include/asm-x86/tboot.h       Fri Jan 16 13:44:38 2009 -0800
+++ b/xen/include/asm-x86/tboot.h       Fri Jan 16 13:45:37 2009 -0800
@@ -69,8 +69,7 @@ typedef struct __packed {
     uuid_t    uuid;              /* {663C8DFF-E8B3-4b82-AABF-19EA4D057A08} */
     uint32_t  version;           /* Version number; currently supports 0.3 */
     uint32_t  log_addr;          /* physical addr of tb_log_t log */
-    uint32_t  shutdown_entry32;  /* entry point for tboot shutdown from 32b */
-    uint32_t  shutdown_entry64;  /* entry point for tboot shutdown from 64b */
+    uint32_t  shutdown_entry;    /* entry point for tboot shutdown */
     uint32_t  shutdown_type;     /* type of shutdown (TB_SHUTDOWN_*) */
     uint32_t  s3_tb_wakeup_entry;/* entry point for tboot s3 wake up */
     uint32_t  s3_k_wakeup_entry; /* entry point for xen s3 wake up */

Attachment: xen-txt-05-unified_shutdown_entry.patch
Description: xen-txt-05-unified_shutdown_entry.patch

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