This patch defines a new bit in the mask used to instruct QEMU to unplug emulated devices. See thread [1] for the related discussion.
[1] https://lists.xen.org/archives/html/xen-devel/2017-03/msg02924.html Signed-off-by: Paul Durrant <paul.durr...@citrix.com> --- Cc: Andrew Cooper <andrew.coop...@citrix.com> Cc: George Dunlap <george.dun...@eu.citrix.com> Cc: Ian Jackson <ian.jack...@eu.citrix.com> Cc: Jan Beulich <jbeul...@suse.com> Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Cc: Stefano Stabellini <sstabell...@kernel.org> Cc: Tim Deegan <t...@xen.org> Cc: Wei Liu <wei.l...@citrix.com> --- docs/misc/hvm-emulated-unplug.markdown | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/docs/misc/hvm-emulated-unplug.markdown b/docs/misc/hvm-emulated-unplug.markdown index 8ead0c5..f6b27ed 100644 --- a/docs/misc/hvm-emulated-unplug.markdown +++ b/docs/misc/hvm-emulated-unplug.markdown @@ -32,12 +32,13 @@ drivers): blacklisted and should not load. 6. The drivers write a two-byte bitmask of devices to unplug to IO - port `0x10`. The defined fields are: + port `0x10`. The defined bits are: - * `1` -- All emulated disks (not including CD drives) - * `2` -- All emulated NICs - * `4` -- All IDE disks except for the primary master (not including CD - drives) + * `0` -- All emulated IDE and SCSI disks (not including CD drives). + * `1` -- All emulated NICs. + * `2` -- All IDE disks except for the primary master (not including CD + drives). This is overridden by bit 0. + * `3` -- All emulated NVMe disks. The relevant emulated devices then disappear from the relevant buses. For most guest operating systems, you want to do this -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
