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[Qemu-trivial] [Qemu-devel][PATCH] hw/i386/pc: reject to boot a wrong he

From: liguang
Subject: [Qemu-trivial] [Qemu-devel][PATCH] hw/i386/pc: reject to boot a wrong header magic kernel
Date: Wed, 27 Mar 2013 14:10:31 +0800

if head magic is missing or wrong unexpectedly, we'd
better to reject booting.
I make a mistake to boot a vmlinuz for MIPS(which
I think it's for x86) like this:
qemu-system-x86_64 -kernel vmlinuz -initrd demord
then qemu report:
"qemu: linux kernel too old to load a ram disk"
that's misleading.

Signed-off-by: liguang <address@hidden>
 hw/i386/pc.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index b1e06fa..2b78dfc 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -683,8 +683,10 @@ static void load_linux(void *fw_cfg,
         if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
                            kernel_cmdline, kernel_size, header)) {
+        } else {
+            fprintf(stderr, "please assure specicified kernel is for x86!\n");
+            exit(1);
-        protocol = 0;
     if (protocol < 0x200 || !(header[0x211] & 0x01)) {

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