KVM: PPC: Fix DEC truncation for greater than 0xffff_ffff/1000
KVM: PPC: Fix DEC truncation for greater than 0xffff_ffff/1000

kvmppc_emulate_dec() uses dec_nsec of type unsigned long and does below calculation:

        dec_nsec = vcpu->arch.dec;
        dec_nsec *= 1000;
This will truncate if DEC value "vcpu->arch.dec" is greater than 0xffff_ffff/1000.
For example : For tb_ticks_per_usec = 4a, we can not set decrementer more than ~58ms.

Signed-off-by: Bharat Bhushan <46879f56595617ba61998690b4cbeb89fd10e7ef@freescale.com>
Acked-by: Liu Yu <ebc8afdf93ddced65e1a7f9380f4fe54b76a6d31@freescale.com>
Signed-off-by: Alexander Graf <3ad82b0c937b9aa51276120cedd545efc822be04@suse.de>
Signed-off-by: Avi Kivity <8f920f22884d6fea9df883843c4a8095a2e5ac6f@redhat.com>


KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas