From 72d528b0571855f47d0c93fae2b55cd2b8967659 Mon Sep 17 00:00:00 2001 From: Ian Jackson Date: Thu, 17 Feb 2011 19:48:05 +0000 Subject: docs: vbd-interface.txt: correct behaviour for modern Linux pv-on-hvm Modern PV on HVM kernels map hd* devices to corresponding xvd*. Signed-off-by: Stefano Stabellini Signed-off-by: Ian Jackson Committed-by: Ian Jackson --- docs/misc/vbd-interface.txt | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'docs/misc/vbd-interface.txt') diff --git a/docs/misc/vbd-interface.txt b/docs/misc/vbd-interface.txt index ce5ce4f0ea..d97c458f14 100644 --- a/docs/misc/vbd-interface.txt +++ b/docs/misc/vbd-interface.txt @@ -114,9 +114,10 @@ only. Modern PV drivers will map these to identically-named devices in the guest. For Linux HVM guests using PV-on-HVM drivers, users are recommended to -supply as few hd* devices as possible and use pure xvd* devices for -the rest. Modern PV-on-HVM drivers will map the hd* devices to -/dev/xvdHDa etc. +supply as few hd* devices as possible, and for the rest of the disks, +to use pure xvd* devices starting at xvde. Modern PV-on-HVM drivers +will map provided hd* devices to the corresponding /dev/xvd* (for +example, hda is presented also as /dev/xvda). Some Linux HVM guests with broken PV-on-HVM drivers do not cope properly if both hda and hdc are supplied, nor with both hda and xvda, -- cgit v1.2.3