The issue of d) is that there are multiple ways to inject MCE. Now one
software based, one APEI based, and maybe some others in the future.
They all use different interfaces. And as debug interface, there are not
considered kernel ABI too (some are in debugfs). So I think it is better
to use
On 11/12/2010 03:16 AM, Huang Ying wrote:
On Thu, 2010-11-11 at 17:39 +0800, Avi Kivity wrote:
On 11/11/2010 02:56 AM, Huang Ying wrote:
On Thu, 2010-11-11 at 00:49 +0800, Anthony Liguori wrote:
On 11/10/2010 02:34 AM, Avi Kivity wrote:
Why the gpa -hva mapping is not
On 11/14/2010 01:08 PM, Avi Kivity wrote:
4) Use -mempath on /dev/shm and poison a page in the backing file
If we can poison a page in the backing file, how do we know the
corresponding gpa and hpa?
I think you currently can't know it's gpa (why do you want to?); the
upcoming NUMA
On Sun, 2010-11-14 at 19:08 +0800, Avi Kivity wrote:
On 11/12/2010 03:16 AM, Huang Ying wrote:
On Thu, 2010-11-11 at 17:39 +0800, Avi Kivity wrote:
On 11/11/2010 02:56 AM, Huang Ying wrote:
On Thu, 2010-11-11 at 00:49 +0800, Anthony Liguori wrote:
On 11/10/2010 02:34 AM, Avi
On 11/11/2010 02:56 AM, Huang Ying wrote:
On Thu, 2010-11-11 at 00:49 +0800, Anthony Liguori wrote:
On 11/10/2010 02:34 AM, Avi Kivity wrote:
Why the gpa - hva mapping is not
consistent for RAM if -mempath is not used?
Video RAM in the range a-b and PCI mapped RAM can
On Thu, 2010-11-11 at 17:39 +0800, Avi Kivity wrote:
On 11/11/2010 02:56 AM, Huang Ying wrote:
On Thu, 2010-11-11 at 00:49 +0800, Anthony Liguori wrote:
On 11/10/2010 02:34 AM, Avi Kivity wrote:
Why the gpa - hva mapping is not
consistent for RAM if -mempath is not used?
On Wed, 2010-11-10 at 14:56 +0800, Avi Kivity wrote:
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is automated testing.
That's precisely what the command should not be used for.
You can't assume a gpa - hva mapping is consistent in an external
On 11/10/2010 09:41 AM, Huang Ying wrote:
On Wed, 2010-11-10 at 14:59 +0800, Avi Kivity wrote:
On 11/10/2010 08:56 AM, Avi Kivity wrote:
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is automated testing.
That's precisely what the command
On Wed, 2010-11-10 at 16:28 +0800, Avi Kivity wrote:
On 11/10/2010 09:41 AM, Huang Ying wrote:
On Wed, 2010-11-10 at 14:59 +0800, Avi Kivity wrote:
On 11/10/2010 08:56 AM, Avi Kivity wrote:
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is
On 11/10/2010 10:38 AM, Huang Ying wrote:
If we get a full address (rather than just a frame number) then we can
identify the 4k page and send an mce just for that frame?
We need host kernel to break down the 2M huge page into 4k pages. Then
send SIGBUS to QEMU with the poisoned 4k page.
On 11/10/2010 10:21 AM, Huang Ying wrote:
On Wed, 2010-11-10 at 14:56 +0800, Avi Kivity wrote:
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is automated testing.
That's precisely what the command should not be used for.
You can't assume
We need host kernel to break down the 2M huge page into 4k pages. Then
send SIGBUS to QEMU with the poisoned 4k page. Because host kernel will
poison the whole 2M virtual address space otherwise, and other 4k pages
inside the 2M page can not used accessed in guest (will trigger SIGBUS
and
On 11/10/2010 02:34 AM, Avi Kivity wrote:
Why the gpa - hva mapping is not
consistent for RAM if -mempath is not used?
Video RAM in the range a-b and PCI mapped RAM can change gpas
(while remaining in the same hva).
Even for ordinary RAM, which doesn't normally change gpa/hva, I'm
On 11/10/2010 06:42 PM, Andi Kleen wrote:
We need host kernel to break down the 2M huge page into 4k pages. Then
send SIGBUS to QEMU with the poisoned 4k page. Because host kernel will
poison the whole 2M virtual address space otherwise, and other 4k pages
inside the 2M page can not used
Doing it in userspace in easier, since we can replace the vma for
that section (and avoid mixed 4k/2M pages in hugetlbfs).
You can't do that today, there's no way currently to access the non corrupted
portion of the 2MB page. Once it's poisoned it's all gone.
-Andi
--
a...@linux.intel.com --
On 11/10/2010 07:44 PM, Andi Kleen wrote:
Doing it in userspace in easier, since we can replace the vma for
that section (and avoid mixed 4k/2M pages in hugetlbfs).
You can't do that today, there's no way currently to access the non corrupted
portion of the 2MB page. Once it's poisoned it's
On Wed, Nov 10, 2010 at 07:47:11PM +0200, Avi Kivity wrote:
On 11/10/2010 07:44 PM, Andi Kleen wrote:
Doing it in userspace in easier, since we can replace the vma for
that section (and avoid mixed 4k/2M pages in hugetlbfs).
You can't do that today, there's no way currently to access the
On 11/10/2010 09:16 PM, Andi Kleen wrote:
On Wed, Nov 10, 2010 at 07:47:11PM +0200, Avi Kivity wrote:
On 11/10/2010 07:44 PM, Andi Kleen wrote:
Doing it in userspace in easier, since we can replace the vma for
that section (and avoid mixed 4k/2M pages in hugetlbfs).
You can't do
On Thu, 2010-11-11 at 00:49 +0800, Anthony Liguori wrote:
On 11/10/2010 02:34 AM, Avi Kivity wrote:
Why the gpa - hva mapping is not
consistent for RAM if -mempath is not used?
Video RAM in the range a-b and PCI mapped RAM can change gpas
(while remaining in the same hva).
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is automated testing.
That's precisely what the command should not be used for.
You can't assume a gpa - hva mapping is consistent in an external
application. If you want to implement an interface for
On 11/10/2010 08:56 AM, Avi Kivity wrote:
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is automated testing.
That's precisely what the command should not be used for.
You can't assume a gpa - hva mapping is consistent in an external
application. If
On Wed, 2010-11-10 at 14:59 +0800, Avi Kivity wrote:
On 11/10/2010 08:56 AM, Avi Kivity wrote:
On 11/08/2010 05:39 AM, Anthony Liguori wrote:
Yes. The main usage of the interface is automated testing.
That's precisely what the command should not be used for.
You can't assume a gpa -
Hi, Anthony,
On Mon, 2010-11-08 at 11:39 +0800, Anthony Liguori wrote:
On 11/07/2010 07:29 PM, Huang Ying wrote:
On Sun, 2010-11-07 at 00:24 +0800, Avi Kivity wrote:
On 11/01/2010 03:22 PM, Anthony Liguori wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As
On Mon, 2010-11-08 at 11:39 +0800, Anthony Liguori wrote:
On 11/07/2010 07:29 PM, Huang Ying wrote:
On Sun, 2010-11-07 at 00:24 +0800, Avi Kivity wrote:
On 11/01/2010 03:22 PM, Anthony Liguori wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general
On Sun, 2010-11-07 at 00:24 +0800, Avi Kivity wrote:
On 11/01/2010 03:22 PM, Anthony Liguori wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general interface, it may not work so well, but as test
interface, it works quite well and useful.
Do we have any mechanism to add a test
On 11/06/2010 11:24 AM, Avi Kivity wrote:
On 11/01/2010 03:22 PM, Anthony Liguori wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general interface, it may not work so well, but as test
interface, it works quite well and useful.
Do we have any mechanism to add a test only interface?
On 11/07/2010 07:29 PM, Huang Ying wrote:
On Sun, 2010-11-07 at 00:24 +0800, Avi Kivity wrote:
On 11/01/2010 03:22 PM, Anthony Liguori wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general interface, it may not work so well, but as test
interface, it works quite
On 11/01/2010 03:22 PM, Anthony Liguori wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general interface, it may not work so well, but as test
interface, it works quite well and useful.
Do we have any mechanism to add a test only interface?
I'd like to see what Luiz/Markus think
On Mon, 01 Nov 2010 14:22:21 -0500
Anthony Liguori aligu...@linux.vnet.ibm.com wrote:
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general interface, it may not work so well, but as test
interface, it works quite well and useful.
Do we have any mechanism to add a test only
On Mon, 2010-11-01 at 11:49 -0700, Anthony Liguori wrote:
On 11/01/2010 11:09 AM, Marcelo Tosatti wrote:
On Tue, Oct 26, 2010 at 10:39:48AM +0800, Huang Ying wrote:
Author: Max Asbockmasb...@linux.vnet.ibm.com
Add command pfa2hva to translate guest physical address to host
virtual
On 11/01/2010 02:20 PM, Huang Ying wrote:
Yes. As general interface, it may not work so well, but as test
interface, it works quite well and useful.
Do we have any mechanism to add a test only interface?
I'd like to see what Luiz/Markus think but definitely only a human
monitor interface
Author: Max Asbock masb...@linux.vnet.ibm.com
Add command pfa2hva to translate guest physical address to host
virtual address.
The pfa2hva command provides one step in a chain of translations from
guest virtual to guest physical to host virtual to host physical. Host
physical is then used to
32 matches
Mail list logo
