On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
On 11.07.2013, at 10:57, Alexey Kardashevskiy wrote:
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off)
On Thu, 2013-07-11 at 11:52 +0200, Alexander Graf wrote:
Where exactly (it is rather SPAPR_TCE_IOMMU but does not really
matter)?
Select it on KVM_BOOK3S_64? CONFIG_KVM_BOOK3S_64_HV?
CONFIG_KVM_BOOK3S_64_PR? PPC_BOOK3S_64?
I'd say the most logical choice would be to check the Makefile
On 11.07.2013, at 14:37, Benjamin Herrenschmidt wrote:
On Thu, 2013-07-11 at 11:52 +0200, Alexander Graf wrote:
Where exactly (it is rather SPAPR_TCE_IOMMU but does not really
matter)?
Select it on KVM_BOOK3S_64? CONFIG_KVM_BOOK3S_64_HV?
CONFIG_KVM_BOOK3S_64_PR? PPC_BOOK3S_64?
I'd say
On Thu, 2013-07-11 at 14:50 +0200, Alexander Graf wrote:
Not really no. But that would do. You could have give a more useful
answer in the first place though rather than stringing him along.
Sorry, I figured it was obvious.
It wasn't no, because of the mess with modules and the nasty
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation
was sucessfull, when I rebooted the machine it fails to boot with error
as systemd [1] : Failed to mount /dev : no such device.
Is it problem
On 11.07.2013, at 15:41, chandrashekar shastri wrote:
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation was
sucessfull, when I rebooted the machine it fails to boot with error as
systemd
On 07/11/2013 11:41 PM, chandrashekar shastri wrote:
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation
was sucessfull, when I rebooted the machine it fails to boot with error as
systemd [1] :
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
On Thu, 2013-07-11 at 11:52 +0200, Alexander Graf wrote:
Where exactly (it is rather SPAPR_TCE_IOMMU but does not really
matter)?
Select it on KVM_BOOK3S_64? CONFIG_KVM_BOOK3S_64_HV?
CONFIG_KVM_BOOK3S_64_PR? PPC_BOOK3S_64?
I'd say the most logical choice would be to check the Makefile
On 11.07.2013, at 14:37, Benjamin Herrenschmidt wrote:
On Thu, 2013-07-11 at 11:52 +0200, Alexander Graf wrote:
Where exactly (it is rather SPAPR_TCE_IOMMU but does not really
matter)?
Select it on KVM_BOOK3S_64? CONFIG_KVM_BOOK3S_64_HV?
CONFIG_KVM_BOOK3S_64_PR? PPC_BOOK3S_64?
I'd say
On Thu, 2013-07-11 at 14:50 +0200, Alexander Graf wrote:
Not really no. But that would do. You could have give a more useful
answer in the first place though rather than stringing him along.
Sorry, I figured it was obvious.
It wasn't no, because of the mess with modules and the nasty
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation
was sucessfull, when I rebooted the machine it fails to boot with error
as systemd [1] : Failed to mount /dev : no such device.
Is it problem
On 11.07.2013, at 15:41, chandrashekar shastri wrote:
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation was
sucessfull, when I rebooted the machine it fails to boot with error as
systemd
On 07/11/2013 11:41 PM, chandrashekar shastri wrote:
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation
was sucessfull, when I rebooted the machine it fails to boot with error as
systemd [1] :
On 10.07.2013, at 01:29, Alexey Kardashevskiy wrote:
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off)
On Wed, 2013-07-10 at 12:33 +0200, Alexander Graf wrote:
It's not exactly obvious that you're calling it with writing == 1 :).
Can you create a new local variable is_write in the calling
function, set that to 1 before the call to get_user_pages_fast and
pass it in instead of the 1? The
On 10.07.2013, at 12:39, Benjamin Herrenschmidt wrote:
On Wed, 2013-07-10 at 12:33 +0200, Alexander Graf wrote:
It's not exactly obvious that you're calling it with writing == 1 :).
Can you create a new local variable is_write in the calling
function, set that to 1 before the call to
On 10.07.2013, at 12:40, Alexander Graf wrote:
On 10.07.2013, at 12:39, Benjamin Herrenschmidt wrote:
On Wed, 2013-07-10 at 12:33 +0200, Alexander Graf wrote:
It's not exactly obvious that you're calling it with writing == 1 :).
Can you create a new local variable is_write in the
On Wed, 2013-07-10 at 12:33 +0200, Alexander Graf wrote:
It's not exactly obvious that you're calling it with writing == 1 :).
Can you create a new local variable is_write in the calling
function, set that to 1 before the call to get_user_pages_fast and
pass it in instead of the 1? The
On 10.07.2013, at 12:39, Benjamin Herrenschmidt wrote:
On Wed, 2013-07-10 at 12:33 +0200, Alexander Graf wrote:
It's not exactly obvious that you're calling it with writing == 1 :).
Can you create a new local variable is_write in the calling
function, set that to 1 before the call to
On 10.07.2013, at 12:40, Alexander Graf wrote:
On 10.07.2013, at 12:39, Benjamin Herrenschmidt wrote:
On Wed, 2013-07-10 at 12:33 +0200, Alexander Graf wrote:
It's not exactly obvious that you're calling it with writing == 1 :).
Can you create a new local variable is_write in the
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
virtual mode and get_page is called just once per
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
virtual mode and get_page is called just once per
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
virtual mode and get_page is called just once per a huge page.
Real mode handlers check if the
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
virtual mode and get_page is called just once per a huge page.
Real mode handlers check if the
On 06/27/2013 12:02:36 AM, Alexey Kardashevskiy wrote:
+/*
+ * The KVM guest can be backed with 16MB pages.
+ * In this case, we cannot do page counting from the real mode
+ * as the compound pages are used - they are linked in a list
+ * with pointers as virtual addresses which are inaccessible
On 06/27/2013 12:02:36 AM, Alexey Kardashevskiy wrote:
+/*
+ * The KVM guest can be backed with 16MB pages.
+ * In this case, we cannot do page counting from the real mode
+ * as the compound pages are used - they are linked in a list
+ * with pointers as virtual addresses which are inaccessible
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
virtual mode and get_page is called just once per a huge page.
Real mode handlers check if the
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated in
virtual mode and get_page is called just once per a huge page.
Real mode handlers check if the
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