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mips_malta: Catch kernels linked at wrong address 

Add error reporting if the wrong type of kernel is provided for the
current mode of acceleration.

Currently a KVM kernel linked at 0x40000000 can't be used with TCG, and
a normal kernel linked at 0x80000000 can't be used with KVM.

Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
James Hogan 2014-06-26 10:44:25 +01:00 committed by Paolo Bonzini
parent fbdb1d9555
commit f7f152458e
1 changed files with 14 additions and 0 deletions
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14
hw/mips/mips_malta.c
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@ -792,9 +792,23 @@ static int64_t load_kernel (void)
loaderparams.kernel_filename);
exit(1);
}
/* Sanity check where the kernel has been linked */
if (kvm_enabled()) {
if (kernel_entry & 0x80000000ll) {
error_report("KVM guest kernels must be linked in useg. "
"Did you forget to enable CONFIG_KVM_GUEST?");
exit(1);
}
xlate_to_kseg0 = cpu_mips_kvm_um_phys_to_kseg0;
} else {
if (!(kernel_entry & 0x80000000ll)) {
error_report("KVM guest kernels aren't supported with TCG. "
"Did you unintentionally enable CONFIG_KVM_GUEST?");
exit(1);
}
xlate_to_kseg0 = cpu_mips_phys_to_kseg0;
}