Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-08-04 Thread Konrad Rzeszutek Wilk
On Mon, Jul 28, 2014 at 02:33:06PM +0100, David Vrabel wrote: > On 15/07/14 14:40, Vitaly Kuznetsov wrote: > > From: Olaf Hering > > > > This is a respin of 00e37bdb0113a98408de42db85be002f21dbffd3 > > ("xen PVonHVM: move shared_info to MMIO before kexec"). > > > > Currently kexec in a PVonHVM g

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-28 Thread David Vrabel
On 15/07/14 14:40, Vitaly Kuznetsov wrote: > From: Olaf Hering > > This is a respin of 00e37bdb0113a98408de42db85be002f21dbffd3 > ("xen PVonHVM: move shared_info to MMIO before kexec"). > > Currently kexec in a PVonHVM guest fails with a triple fault because the > new kernel overwrites the share

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-18 Thread Vitaly Kuznetsov
Konrad Rzeszutek Wilk writes: > On Fri, Jul 18, 2014 at 01:05:46PM +0200, Vitaly Kuznetsov wrote: >> Konrad Rzeszutek Wilk writes: >> >> > On Tue, Jul 15, 2014 at 05:43:17PM +0200, Vitaly Kuznetsov wrote: >> >> Konrad Rzeszutek Wilk writes: >> >> >> >> > On Tue, Jul 15, 2014 at 03:40:37PM +02

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-18 Thread Konrad Rzeszutek Wilk
On Fri, Jul 18, 2014 at 01:05:46PM +0200, Vitaly Kuznetsov wrote: > Konrad Rzeszutek Wilk writes: > > > On Tue, Jul 15, 2014 at 05:43:17PM +0200, Vitaly Kuznetsov wrote: > >> Konrad Rzeszutek Wilk writes: > >> > >> > On Tue, Jul 15, 2014 at 03:40:37PM +0200, Vitaly Kuznetsov wrote: > >> >> From

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-18 Thread Vitaly Kuznetsov
Konrad Rzeszutek Wilk writes: > On Tue, Jul 15, 2014 at 05:43:17PM +0200, Vitaly Kuznetsov wrote: >> Konrad Rzeszutek Wilk writes: >> >> > On Tue, Jul 15, 2014 at 03:40:37PM +0200, Vitaly Kuznetsov wrote: >> >> From: Olaf Hering >> >> >> >> This is a respin of 00e37bdb0113a98408de42db85be002f

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-15 Thread Konrad Rzeszutek Wilk
On Tue, Jul 15, 2014 at 05:43:17PM +0200, Vitaly Kuznetsov wrote: > Konrad Rzeszutek Wilk writes: > > > On Tue, Jul 15, 2014 at 03:40:37PM +0200, Vitaly Kuznetsov wrote: > >> From: Olaf Hering > >> > >> This is a respin of 00e37bdb0113a98408de42db85be002f21dbffd3 > >> ("xen PVonHVM: move shared

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-15 Thread Vitaly Kuznetsov
Konrad Rzeszutek Wilk writes: > On Tue, Jul 15, 2014 at 03:40:37PM +0200, Vitaly Kuznetsov wrote: >> From: Olaf Hering >> >> This is a respin of 00e37bdb0113a98408de42db85be002f21dbffd3 >> ("xen PVonHVM: move shared_info to MMIO before kexec"). >> >> Currently kexec in a PVonHVM guest fails wi

Re: [PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-15 Thread Konrad Rzeszutek Wilk
On Tue, Jul 15, 2014 at 03:40:37PM +0200, Vitaly Kuznetsov wrote: > From: Olaf Hering > > This is a respin of 00e37bdb0113a98408de42db85be002f21dbffd3 > ("xen PVonHVM: move shared_info to MMIO before kexec"). > > Currently kexec in a PVonHVM guest fails with a triple fault because the > new kern

[PATCH RFC 1/4] xen PVonHVM: use E820_Reserved area for shared_info

2014-07-15 Thread Vitaly Kuznetsov
From: Olaf Hering This is a respin of 00e37bdb0113a98408de42db85be002f21dbffd3 ("xen PVonHVM: move shared_info to MMIO before kexec"). Currently kexec in a PVonHVM guest fails with a triple fault because the new kernel overwrites the shared info page. The exact failure depends on the size of the