• Paul Mackerras's avatar
    KVM: PPC: Book3S HV: Add new POWER9 guest-accessible SPRs · e9cf1e08
    Paul Mackerras authored
    This adds code to handle two new guest-accessible special-purpose
    registers on POWER9: TIDR (thread ID register) and PSSCR (processor
    stop status and control register).  They are context-switched
    between host and guest, and the guest values can be read and set
    via the one_reg interface.
    
    The PSSCR contains some fields which are guest-accessible and some
    which are only accessible in hypervisor mode.  We only allow the
    guest-accessible fields to be read or set by userspace.
    Signed-off-by: default avatarPaul Mackerras <paulus@ozlabs.org>
    e9cf1e08
api.txt 126 KB