On 8 May 2014 10:32, Marc Zyngier <[email protected]> wrote: > +int kvm_cpu__get_endianness(struct kvm_cpu *vcpu) > +{ > + struct kvm_one_reg reg; > + u64 psr; > + u64 sctlr; > + > + /* > + * Quoting the definition given by Peter Maydell: > + * > + * "Endianness of the CPU which does the virtio reset at the > + * point when it does that reset" > + * > + * We first check for an AArch32 guest: its endianness can > + * change when using SETEND, which affects the CPSR.E bit. > + * > + * If we're AArch64, use SCTLR_EL1.E0E if access comes from > + * EL0, and SCTLR_EL1.EE if access comes from EL1. > + */
I note that the set of checks described here match the logic of the ARM ARM BigEndian() pseudocode function, which is a good sign. thanks -- PMM -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
