• P
    KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit · 82ed3616
    Paul Mackerras 提交于
    This changes the implementation of kvm_vm_ioctl_get_dirty_log() for
    Book3s HV guests to use the hardware C (changed) bits in the guest
    hashed page table.  Since this makes the implementation quite different
    from the Book3s PR case, this moves the existing implementation from
    book3s.c to book3s_pr.c and creates a new implementation in book3s_hv.c.
    That implementation calls kvmppc_hv_get_dirty_log() to do the actual
    work by calling kvm_test_clear_dirty on each page.  It iterates over
    the HPTEs, clearing the C bit if set, and returns 1 if any C bit was
    set (including the saved C bit in the rmap entry).
    Signed-off-by: NPaul Mackerras <paulus@samba.org>
    Signed-off-by: NAlexander Graf <agraf@suse.de>
    Signed-off-by: NAvi Kivity <avi@redhat.com>
    82ed3616
book3s.c 12.2 KB