From: Ingo Molnar <[EMAIL PROTECTED]>
x86 -tip testing found this build bug:
arch/x86/kvm/built-in.o:(.text.fixup+0x1): relocation truncated to fit:
R_X86_64_32 against `.text'
arch/x86/kvm/built-in.o:(.text.fixup+0xb): relocation truncated to fit:
R_X86_64_32 against `.text'
arch/x86/kvm/built-in.o:(.text.fixup+0x15): relocation truncated to fit:
R_X86_64_32 against `.text'
arch/x86/kvm/built-in.o:(.text.fixup+0x1f): relocation truncated to fit:
R_X86_64_32 against `.text'
arch/x86/kvm/built-in.o:(.text.fixup+0x29): relocation truncated to fit:
R_X86_64_32 against `.text'
Introduced by commit 540cd68. The problem is that 'push' will default
to 32-bit, which is not wide enough as a fixup address. (and which would
crash on any real fixup event even if it was wide enough)
Introduce KVM_EX_PUSH to get the proper address push width on 64-bit too.
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 4a47859..0b6b996 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -702,9 +702,11 @@ enum {
#ifdef CONFIG_64BIT
-#define KVM_EX_ENTRY ".quad"
+# define KVM_EX_ENTRY ".quad"
+# define KVM_EX_PUSH "pushq"
#else
-#define KVM_EX_ENTRY ".long"
+# define KVM_EX_ENTRY ".long"
+# define KVM_EX_PUSH "pushl"
#endif
/*
@@ -718,7 +720,7 @@ asmlinkage void kvm_handle_fault_on_reboot(void);
"666: " insn "\n\t" \
".pushsection .text.fixup, \"ax\" \n" \
"667: \n\t" \
- "push $666b \n\t" \
+ KVM_EX_PUSH " $666b \n\t" \
"jmp kvm_handle_fault_on_reboot \n\t" \
".popsection \n\t" \
".pushsection __ex_table, \"a\" \n\t" \
--
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