resume: Don't attempt to use generic reboot mechanisms on QEMU

On QEMU it's necessary to manually reset the BIOS memory region
between 0xc0000-0x100000 on a reboot.  After this manual memory reset
is completed, it's not valid to use the generic reset mechanisms.
Rename qemu_prep_reset() to qemu_reboot() and change the function to
immediately reboot after the code memcpy.

This fixes a bug that could cause code corruption on reboots - calling
the udelay() function (as invoked by i8042_reboot and/or pci_reboot)
was not valid after the BIOS was memcpy'd.

Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Tested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/util.h b/src/util.h
index 336eaaf1..8269057f 100644
--- a/src/util.h
+++ b/src/util.h
@@ -123,7 +123,7 @@ void pirtable_setup(void);
 // fw/shadow.c
 void make_bios_writable(void);
 void make_bios_readonly(void);
-void qemu_prep_reset(void);
+void qemu_reboot(void);
 
 // fw/smbios.c
 void smbios_legacy_setup(void);