• Jan Kiszka's avatar
    KVM: x86: Fix guest debug across vcpu INIT reset · c8639010
    Jan Kiszka authored
    If we reset a vcpu on INIT, we so far overwrote dr7 as provided by
    KVM_SET_GUEST_DEBUG, and we also cleared switch_db_regs unconditionally.
    Fix this by saving the dr7 used for guest debugging and calculating the
    effective register value as well as switch_db_regs on any potential
    change. This will change to focus of the set_guest_debug vendor op to
    Found while trying to stop on start_secondary.
    Signed-off-by: Jan Kiszka's avatarJan Kiszka <jan.kiszka@siemens.com>
    Signed-off-by: default avatarAvi Kivity <avi@redhat.com>