Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-16 Thread Ian Campbell
On Mon, 2014-12-15 at 16:47 +, George Dunlap wrote: > On Wed, Dec 10, 2014 at 4:30 PM, Konrad Rzeszutek Wilk > wrote: > > On Tue, Dec 09, 2014 at 02:48:21PM +, Ian Campbell wrote: > >> On Tue, 2014-12-09 at 14:04 +, George Dunlap wrote: > >> > At the moment libxl unconditinally passes

Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-15 Thread George Dunlap
On Wed, Dec 10, 2014 at 4:30 PM, Konrad Rzeszutek Wilk wrote: > On Tue, Dec 09, 2014 at 02:48:21PM +, Ian Campbell wrote: >> On Tue, 2014-12-09 at 14:04 +, George Dunlap wrote: >> > At the moment libxl unconditinally passes the underlying file format >> > to qemu in the device string. How

Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-15 Thread Wei Liu
On Tue, Dec 09, 2014 at 02:04:19PM +, George Dunlap wrote: [...] > While preparing this patch, I also noticed that cdroms will ignore the > backend parameter and treat everything as a file. This is a bug create ! title it CDROM's backend ignored and always treated as file thanks

Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-10 Thread Konrad Rzeszutek Wilk
On Tue, Dec 09, 2014 at 02:48:21PM +, Ian Campbell wrote: > On Tue, 2014-12-09 at 14:04 +, George Dunlap wrote: > > At the moment libxl unconditinally passes the underlying file format > > to qemu in the device string. However, when tapdisk is in use, > > tapdisk handles the underlying for

Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-09 Thread Ian Campbell
On Tue, 2014-12-09 at 14:04 +, George Dunlap wrote: > At the moment libxl unconditinally passes the underlying file format > to qemu in the device string. However, when tapdisk is in use, > tapdisk handles the underlying format and presents qemu with > effectively a raw disk. When qemu looks

Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-09 Thread George Dunlap
On 12/09/2014 02:32 PM, Wei Liu wrote: > On Tue, Dec 09, 2014 at 02:04:19PM +, George Dunlap wrote: >> At the moment libxl unconditinally passes the underlying file format >> to qemu in the device string. However, when tapdisk is in use, >> tapdisk handles the underlying format and presents qe

Re: [Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-09 Thread Wei Liu
On Tue, Dec 09, 2014 at 02:04:19PM +, George Dunlap wrote: > At the moment libxl unconditinally passes the underlying file format > to qemu in the device string. However, when tapdisk is in use, > tapdisk handles the underlying format and presents qemu with > effectively a raw disk. When qemu

[Xen-devel] [PATCH for 4.5] libxl: Tell qemu to use raw format when using a tapdisk

2014-12-09 Thread George Dunlap
At the moment libxl unconditinally passes the underlying file format to qemu in the device string. However, when tapdisk is in use, tapdisk handles the underlying format and presents qemu with effectively a raw disk. When qemu looks at the tapdisk block device and doesn't find the image format it