Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-16 Thread Laszlo Ersek
On 10/16/15 04:38, Kevin O'Connor wrote: > On Fri, Oct 16, 2015 at 01:10:54AM +0200, Laszlo Ersek wrote: >> On 10/14/15 13:27, Ian Campbell wrote: >>> On Wed, 2015-10-14 at 12:06 +0100, Stefano Stabellini wrote: > Can't you just teach SeaBIOS how to deal with your PV disks and then > only

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-16 Thread Stefano Stabellini
On Fri, 16 Oct 2015, Laszlo Ersek wrote: > On 10/16/15 11:06, Stefano Stabellini wrote: > > On Thu, 15 Oct 2015, Kevin O'Connor wrote: > >> On Fri, Oct 16, 2015 at 01:10:54AM +0200, Laszlo Ersek wrote: > >>> On 10/14/15 13:27, Ian Campbell wrote: > On Wed, 2015-10-14 at 12:06 +0100, Stefano

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-16 Thread Laszlo Ersek
On 10/16/15 11:06, Stefano Stabellini wrote: > On Thu, 15 Oct 2015, Kevin O'Connor wrote: >> On Fri, Oct 16, 2015 at 01:10:54AM +0200, Laszlo Ersek wrote: >>> On 10/14/15 13:27, Ian Campbell wrote: On Wed, 2015-10-14 at 12:06 +0100, Stefano Stabellini wrote: >> Can't you just teach

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-16 Thread Stefano Stabellini
On Thu, 15 Oct 2015, Kevin O'Connor wrote: > On Fri, Oct 16, 2015 at 01:10:54AM +0200, Laszlo Ersek wrote: > > On 10/14/15 13:27, Ian Campbell wrote: > > > On Wed, 2015-10-14 at 12:06 +0100, Stefano Stabellini wrote: > > >>> Can't you just teach SeaBIOS how to deal with your PV disks and then > >

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-16 Thread Ian Campbell
On Fri, 2015-10-16 at 10:06 +0100, Stefano Stabellini wrote: > > What's the reason for the "stumbling block" that requires the BIOS to > > tear down the Xen ring prior to the OS being able to replace it? The > > BIOS disk calls are all synchronous, so the ring wont be active when > > the OS

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-16 Thread Kevin O'Connor
On Fri, Oct 16, 2015 at 10:06:48AM +0100, Stefano Stabellini wrote: > On Thu, 15 Oct 2015, Kevin O'Connor wrote: > > What's the reason for the "stumbling block" that requires the BIOS to > > tear down the Xen ring prior to the OS being able to replace it? The > > BIOS disk calls are all

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-15 Thread Laszlo Ersek
CC'ing Kevin O'Connor On 10/14/15 13:27, Ian Campbell wrote: > On Wed, 2015-10-14 at 12:06 +0100, Stefano Stabellini wrote: >>> Can't you just teach SeaBIOS how to deal with your PV disks and then >>> only add that to your VM and forget about IDE/AHCI? I mean, that's how >>> it's done for

Re: [Qemu-block] [Qemu-devel] [Xen-devel] Question about xen disk unplug support for ahci missed in qemu

2015-10-15 Thread Kevin O'Connor
On Fri, Oct 16, 2015 at 01:10:54AM +0200, Laszlo Ersek wrote: > On 10/14/15 13:27, Ian Campbell wrote: > > On Wed, 2015-10-14 at 12:06 +0100, Stefano Stabellini wrote: > >>> Can't you just teach SeaBIOS how to deal with your PV disks and then > >>> only add that to your VM and forget about