On 09/29/2014 10:18 AM, Cornelia Huck wrote:
On Mon, 22 Sep 2014 17:54:46 -0700
Mario Smarduch m.smard...@samsung.com wrote:
Add support for generic implementation of dirty log read function. For now
x86_64 and ARMv7 share generic dirty log read. Other architectures call
their architecture
On 09/29/2014 06:35 AM, Christoffer Dall wrote:
On Mon, Sep 22, 2014 at 05:54:50PM -0700, Mario Smarduch wrote:
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration
specific variants for TLB Flushing
and dirty log read (patches 1,2 3,4,5,6)
- rebased to 3.16.0-rc1
- Applied Christoffers comments.
Mario Smarduch (6):
KVM: Add architecture-specific TLB flush implementations
KVM: Add generic implementation of kvm_vm_ioctl_get_dirty_log
arm: KVM: Add ARMv7 API
Add support to declare architecture specific TLB flush function, for now ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
include/linux/kvm_host.h |1 +
virt/kvm/Kconfig |3 +++
virt/kvm/kvm_main.c |4
3 files changed, 8 insertions(+)
diff --git
Add support for generic implementation of dirty log read function. For now
x86_64 and ARMv7 share generic dirty log read. Other architectures call
their architecture specific functions.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/Kconfig |1 +
arch/arm/kvm
This patch adds ARMv7 architecture TLB Flush function.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/include/asm/kvm_host.h | 12
arch/arm/kvm/Kconfig|1 +
arch/arm/kvm/interrupts.S | 12
Patch adds support for initial write protection of VM memlsot. This patch series
assumes that huge PUDs will not be used in 2nd stage tables, which is awlays
valid on ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |2 +
arch/arm/include
This patch adds support to track VM dirty pages, between dirty log reads. Pages
that have been dirtied since last log read are write protected again, in
preparation of next dirty log read. In addition ARMv7 dirty log read function
is pushed up to generic layer.
Signed-off-by: Mario Smarduch
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration is canceled huge pages may be used again.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c
On 08/28/2014 12:26 PM, Joel Schopp wrote:
On 08/26/2014 06:51 PM, Mario Smarduch wrote:
This patch adds support for ARMv7 dirty page logging. Some functions
of dirty
page logging have been split to generic and arch specific
implementations,
details below. Dirty page logging is one
Patch adds support for initial write protection of VM memlsot. This patch series
assumes that huge PUDs will not be used in 2nd stage tables, which is awlays
valid on ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h | 1 +
arch/arm/include
Add support to declare architecture specific TLB flush function, for now only
ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
virt/kvm/Kconfig| 3 +++
virt/kvm/kvm_main.c | 4
2 files changed, 7 insertions(+)
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
index
This patch adds ARMv7 architecture TLB Flush function.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h | 1 +
arch/arm/include/asm/kvm_host.h | 12
arch/arm/kvm/Kconfig| 1 +
arch/arm/kvm/interrupts.S | 12
4
.
Mario Smarduch (6):
KVM: Add architecture-specific TLB flush implementations
KVM: Add generic implementation of kvm_vm_ioctl_get_dirty_log
arm: KVM: Add ARMv7 API to flush TLBs
arm: KVM: Add initial dirty page locking infrastructure
arm: KVM: dirty log read write protect support
arm: KVM
Add support for generic implementation of dirty log read function. For now both
x86_64 and ARMv7 share generic dirty log read. Other architectures call
their architecture specific functions.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h | 2 +
arch
This patch adds support to track VM dirty pages, between dirty log reads. Pages
that have been dirtied since last log read are write protected again, in
preparation of next dirty log read. In addition ARMv7 dirty log read function
is pushed up to generic layer.
Signed-off-by: Mario Smarduch
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration is canceled huge pages may be used again.
Signed-off-by: Mario Smaduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 45
On 08/18/2014 05:51 AM, Christoffer Dall wrote:
On Wed, Aug 13, 2014 at 06:20:19PM -0700, Mario Smarduch wrote:
On 08/13/2014 12:30 AM, Christoffer Dall wrote:
On Tue, Aug 12, 2014 at 06:27:11PM -0700, Mario Smarduch wrote:
On 08/12/2014 02:50 AM, Christoffer Dall wrote:
On Mon, Aug 11, 2014
On 08/13/2014 06:20 PM, Mario Smarduch wrote:
On 08/13/2014 12:30 AM, Christoffer Dall wrote:
On Tue, Aug 12, 2014 at 06:27:11PM -0700, Mario Smarduch wrote:
On 08/12/2014 02:50 AM, Christoffer Dall wrote:
On Mon, Aug 11, 2014 at 06:25:05PM -0700, Mario Smarduch wrote:
On 08/11/2014 12:13 PM
On 08/13/2014 12:30 AM, Christoffer Dall wrote:
On Tue, Aug 12, 2014 at 06:27:11PM -0700, Mario Smarduch wrote:
On 08/12/2014 02:50 AM, Christoffer Dall wrote:
On Mon, Aug 11, 2014 at 06:25:05PM -0700, Mario Smarduch wrote:
On 08/11/2014 12:13 PM, Christoffer Dall wrote:
On Thu, Jul 24, 2014
On 08/12/2014 02:36 AM, Christoffer Dall wrote:
On Mon, Aug 11, 2014 at 06:36:14PM -0700, Mario Smarduch wrote:
On 08/11/2014 12:12 PM, Christoffer Dall wrote:
[...]
+/**
+ * stage2_wp_range() - write protect stage2 memory region range
+ * @kvm: The KVM pointer
+ * @start:Start
On 08/12/2014 02:32 AM, Christoffer Dall wrote:
On Mon, Aug 11, 2014 at 05:16:21PM -0700, Mario Smarduch wrote:
On 08/11/2014 12:12 PM, Christoffer Dall wrote:
Remove the parenthesis from the subject line.
I just prefer not having the (w/no huge PUD support) part in the patch
title.
Ah ok
On 08/12/2014 02:50 AM, Christoffer Dall wrote:
On Mon, Aug 11, 2014 at 06:25:05PM -0700, Mario Smarduch wrote:
On 08/11/2014 12:13 PM, Christoffer Dall wrote:
On Thu, Jul 24, 2014 at 05:56:08PM -0700, Mario Smarduch wrote:
This patch adds support for handling 2nd stage page faults during
On 08/11/2014 12:12 PM, Christoffer Dall wrote:
On Thu, Jul 24, 2014 at 05:56:05PM -0700, Mario Smarduch wrote:
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Generic VM TLB flush calls ARMv7 arch defined TLB flush function.
Signed-off-by: Mario Smarduch
On 08/11/2014 12:12 PM, Christoffer Dall wrote:
Remove the parenthesis from the subject line.
Hmmm have to check this don't see it my patch file.
On Thu, Jul 24, 2014 at 05:56:06PM -0700, Mario Smarduch wrote:
Patch adds support for initial write protection VM memlsot. This patch
series
On 08/11/2014 12:13 PM, Christoffer Dall wrote:
On Thu, Jul 24, 2014 at 05:56:07PM -0700, Mario Smarduch wrote:
This patch adds support for keeping track of VM dirty pages. As dirty page
log
is retrieved, the pages that have been written are write protected again for
next write and log read
On 08/11/2014 12:13 PM, Christoffer Dall wrote:
On Thu, Jul 24, 2014 at 05:56:08PM -0700, Mario Smarduch wrote:
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration
On 08/11/2014 12:12 PM, Christoffer Dall wrote:
Remove the parenthesis from the subject line.
On Thu, Jul 24, 2014 at 05:56:06PM -0700, Mario Smarduch wrote:
Patch adds support for initial write protection VM memlsot. This patch
series
192.168.2.100 gw 192.168.10.100
ssh should resume after route switch. ping as well should work
seamlessly.
Mario Smarduch (4):
add ARMv7 HYP API to flush VM TLBs, change generic TLB flush to
support arch flush
ARMv7 dirty page logging inital mem region write protect (w/no huge
PUD support
On 07/24/2014 11:12 PM, Alexander Graf wrote:
On 25.07.14 02:56, Mario Smarduch wrote:
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Generic VM TLB flush calls ARMv7 arch defined TLB flush
function.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
On 07/24/2014 11:16 PM, Alexander Graf wrote:
On 25.07.14 02:56, Mario Smarduch wrote:
Patch adds support for initial write protection VM memlsot. This
patch series
assumes that huge PUDs will not be used in 2nd stage tables.
Is this a valid assumption?
Right now it's unclear if PUDs
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Generic VM TLB flush calls ARMv7 arch defined TLB flush function.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/include/asm/kvm_host.h |1 +
arch
seamlessly.
Mario Smarduch (4):
add ARMv7 HYP API to flush VM TLBs, change generic TLB flush to
support arch flush
ARMv7 dirty page logging inital mem region write protect (w/no huge
PUD support)
dirty log write protect mgmt. Moved x86, armv7 to generic, set armv8
ia64 mips powerpc
.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/arm.c |8 +++-
arch/arm/kvm/mmu.c | 22 +
arch/arm64/include/asm/kvm_host.h |2 +
arch/arm64/kvm/Kconfig |1 +
arch/ia64/include/asm/kvm_host.h|1
Patch adds support for initial write protection VM memlsot. This patch series
assumes that huge PUDs will not be used in 2nd stage tables.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |1 +
arch/arm/include/asm/kvm_mmu.h| 20
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration is canceled huge pages will be used again.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c
On 07/04/2014 09:29 AM, Paolo Bonzini wrote:
Il 03/07/2014 17:04, Christoffer Dall ha scritto:
Hmmm, I'm really not an expert in the 'established procedures' for what
to put in config files etc., but here's my basic take:
a) you wouldn't put a config option in Kconfig unless it's comething
add dirty log support to ARMv8, to test I would
add a QEMU monitor function to validate general operation.
Your thoughts?
Thanks,
Mario
On 07/03/2014 08:04 AM, Christoffer Dall wrote:
On Tue, Jun 17, 2014 at 06:41:52PM -0700, Mario Smarduch wrote:
On 06/11/2014 12:03 AM, Christoffer Dall wrote
This patch adds support for keeping track of VM dirty pages. As dirty page log
is retrieved, the pages that have been written are write protected again for
next write and log read. For ARMv8 read of dirty log returns invalid operation.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration is canceled huge pages will be used again. For ARMv8
logging is hardcoded to false.
Signed-off-by: Mario Smarduch m.smard
Patch adds support for initial write protection VM memlsot. This patch series
assumes that huge PUDs will not be used in 2nd stage tables. For ARMv8 nothing
happens here.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |1 +
arch/arm/include
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Moved VM TLB flushing back to architecture layer.
This patch depends on the unmap_range() patch, it needs to be applied first.
No changes to ARMv8.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm
protection of dirty page mask
- Moved generic code back to architecture layer, keep it there for time being,
until a KVM framework for architecture functions to override genric
ones is defined.
- Fixed conditon bug for marking pages dirty
Mario Smarduch (4):
add ARMv7 HYP API to flush VM TLBs
On 06/11/2014 12:03 AM, Christoffer Dall wrote:
There is also the issue of kvm_flush_remote_tlbs(), that's also weak,
the generic one is using IPIs. Since it's only used in mmu.c maybe make
this one static.
So I don't see a lot of use of weak symbols in kvm_main.c (actually on
kvmarm/next
On 06/10/2014 11:58 PM, Christoffer Dall wrote:
On Tue, Jun 10, 2014 at 11:23:17AM -0700, Mario Smarduch wrote:
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:27PM -0700, Mario Smarduch wrote:
This patch adds support for handling 2nd stage page faults during
Hi Paolo,
for ARM dirty page logging we have couple functions
that are generic.
- kvm_vm_ioctl_get_dirty_log - is identical to x86 version
- kvm_flush_remote_tlbs - ARM version does hardware broadcast
it's different from the generic one in kvm_main.c
How to proceed to make these generic?
On 06/10/2014 02:22 AM, Christoffer Dall wrote:
On Mon, Jun 09, 2014 at 06:47:12PM -0700, Mario Smarduch wrote:
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Fri, Jun 06, 2014 at 10:33:41AM -0700, Mario Smarduch wrote:
kvm_vm_ioctl_get_dirty_log() is generic used by x86, ARM. x86 recent
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:27PM -0700, Mario Smarduch wrote:
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and disolves huge pages to page tables.
s/disolves/dissolves/g
On 06/08/2014 03:45 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:23PM -0700, Mario Smarduch wrote:
This patch adds support for dirty page logging so far tested only on ARMv7.
With dirty page logging, GICv2 vGIC and arch timer save/restore support,
live
migration is supported
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:24PM -0700, Mario Smarduch wrote:
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Added ARM version of kvm_flush_remote_tlbs(), made the generic
implementation a weak symbol
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:25PM -0700, Mario Smarduch wrote:
Patch adds memslot support for initial write protection and split up of huge
pages. This patch series assumes that huge PUDs will not be used to map VM
memory. This patch depends
On 06/09/2014 11:09 AM, Christoffer Dall wrote:
On Mon, Jun 09, 2014 at 10:58:18AM -0700, Mario Smarduch wrote:
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:25PM -0700, Mario Smarduch wrote:
Patch adds memslot support for initial write protection and split up
On 06/09/2014 10:49 AM, Christoffer Dall wrote:
On Mon, Jun 09, 2014 at 10:06:29AM -0700, Mario Smarduch wrote:
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Tue, Jun 03, 2014 at 04:19:24PM -0700, Mario Smarduch wrote:
Patch adds HYP interface for global VM TLB invalidation without
On 06/08/2014 05:05 AM, Christoffer Dall wrote:
On Fri, Jun 06, 2014 at 10:33:41AM -0700, Mario Smarduch wrote:
kvm_vm_ioctl_get_dirty_log() is generic used by x86, ARM. x86 recent patch
changed this function, this patch picks up those changes, re-tested
everything
works. Applies cleanly
, the pages that have been written are write protected again for
next write and log read.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |3 ++
arch/arm/kvm/arm.c |5 ---
arch/arm/kvm/mmu.c | 79
On 06/05/2014 10:52 PM, Xiao Guangrong wrote:
On 06/06/2014 03:09 AM, Mario Smarduch wrote:
On 06/04/2014 11:55 PM, Xiao Guangrong wrote:
On 06/05/2014 05:11 AM, Mario Smarduch wrote:
+ spin_lock(kvm-mmu_lock);
+
+ for (i = 0; i n / sizeof(long); i++) {
+ unsigned long mask
On 06/04/2014 11:55 PM, Xiao Guangrong wrote:
On 06/05/2014 05:11 AM, Mario Smarduch wrote:
+spin_lock(kvm-mmu_lock);
+
+for (i = 0; i n / sizeof(long); i++) {
+unsigned long mask;
+gfn_t offset;
+
+if (!dirty_bitmap[i
log
is retrieved, the pages that have been written are write protected again for
next write and log read.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |3 ++
arch/arm/kvm/arm.c |5 ---
arch/arm/kvm/mmu.c | 79
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and disolves huge pages to page tables.
In case migration is canceled huge pages will be used again.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 36
on
logging request
- Only code logic change, disolve huge pages to page tables in page fault
handler
- Made many many changes based on Christoffers comments.
Mario Smarduch (4):
add ARMv7 HYP API to flush VM TLBs without address param
dirty page logging inital mem region write protect (w
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Added ARM version of kvm_flush_remote_tlbs(), made the generic
implementation a weak symbol.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/kvm
Patch adds memslot support for initial write protection and split up of huge
pages. This patch series assumes that huge PUDs will not be used to map VM
memory. This patch depends on the unmap_range() patch, it needs to be applied
first.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
This patch adds support for keeping track of VM dirty pages. As dirty page log
is retrieved, the pages that have been written are write protected again for
next write and log read.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |3 ++
arch/arm/kvm
+static inline void kvm_set_s2pte_readonly(pte_t *pte)
+{
+pte_val(*pte) = ~(L_PTE_S2_RDONLY ^ L_PTE_S2_RDWR);
This relies on the pte already having been set as RDONLY or RDWR, if you
are creating a new pte and calling this function it could be easy to
miss that distinction, I
So this needs to be cleared up given this is key to logging.
Cases this code handles during migration -
1. huge page fault described above - write protect fault so you breakup
the huge page.
2. All other faults - first time access, pte write protect you again wind up
in
On 05/29/2014 10:57 AM, Christoffer Dall wrote:
On Thu, May 29, 2014 at 10:08:07AM -0700, Mario Smarduch wrote:
So this needs to be cleared up given this is key to logging.
Cases this code handles during migration -
1. huge page fault described above - write protect fault so you breakup
On 05/28/2014 02:08 AM, Christoffer Dall wrote:
On Tue, May 27, 2014 at 02:55:21PM -0700, Mario Smarduch wrote:
On 05/27/2014 01:12 PM, Christoffer Dall wrote:
On Thu, May 15, 2014 at 11:27:30AM -0700, Mario Smarduch wrote:
[...]
+
+ /* If pgd, pud, pmd not present and you cross pmd
emslot dirty_bitmap during and after write protect.
-Christoffer
Regarding huge pud that's causing some design problems, should huge PUD
pages be considered at all?
Thanks,
Mario
___
kvmarm mailing list
kvm...@lists.cs.columbia.edu
-level table at this time.
I think until PUD Blocks are actually used it's maybe better to
ignore them.
- Mario
On 05/28/2014 11:42 AM, Mario Smarduch wrote:
emslot dirty_bitmap during and after write protect.
-Christoffer
Regarding huge pud that's causing some design problems, should
(but may windup with a github
link).
Thanks,
Mario
On 05/27/2014 12:58 PM, Christoffer Dall wrote:
On Thu, May 15, 2014 at 11:27:29AM -0700, Mario Smarduch wrote:
Patch adds memslot support for initial write protection and split up of huge
pages
I lost track of where we
On 05/27/2014 01:12 PM, Christoffer Dall wrote:
On Thu, May 15, 2014 at 11:27:30AM -0700, Mario Smarduch wrote:
This patch adds support for keeping track of VM dirty pages, by updating
per memslot dirty bitmap and write protecting the page again.
Signed-off-by: Mario Smarduch m.smard
On 05/27/2014 01:19 PM, Christoffer Dall wrote:
On Thu, May 15, 2014 at 11:27:31AM -0700, Mario Smarduch wrote:
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and splits up existing huge pages.
Signed-off-by: Mario Smarduch
Hi Christoffer,
few more comments
struct vgic_distvgic;
+ /* Marks start of migration, used to handle 2nd stage page faults
+* during migration, prevent installing huge pages and split huge pages
+* to small pages.
+*/
commenting style
this is a bit verbose for
Patch adds HYP interface for global VM TLB invalidation without address
parameter. Added ARM version of kvm_flush_remote_tlbs(), made generic one weak.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/kvm/interrupts.S | 11
, and use current code to fault in small pages.
Removed kvm_split_pmd().
Mario Smarduch (4):
add ARMv7 HYP API to flush VM TLBs without address param
live migration support for initial write protect of VM
live migration support for VM dirty log management
add 2nd stage page fault handling
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and splits up existing huge pages.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 36 ++--
1 file changed, 34
Patch adds memslot support for initial write protection and split up of huge
pages
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |8 +++
arch/arm/include/asm/kvm_mmu.h | 10 +++
arch/arm/kvm/arm.c |3 +
arch/arm/kvm/mmu.c
This patch adds support for keeping track of VM dirty pages, by updating
per memslot dirty bitmap and write protecting the page again.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |3 ++
arch/arm/kvm/arm.c |5 --
arch/arm/kvm/mmu.c
On 05/15/2014 11:53 AM, Christoffer Dall wrote:
[I know you sent out a newer version but I already reviewed some of this
patch on the plane today but couldn't send it out before I got home.
Anyway, here it is:]
On Wed, May 07, 2014 at 05:40:14PM -0700, Mario Smarduch wrote:
Patch adds
Will do that, I'm sure there will be another iteration :).
On 05/15/2014 11:51 AM, Christoffer Dall wrote:
On Thu, May 15, 2014 at 11:27:27AM -0700, Mario Smarduch wrote:
This is v6 patcheset of live mgiration support for ARMv7.
migration
This is an extremely terse cover letter. It would
On 05/14/2014 09:47 AM, Christoffer Dall wrote:
On Wed, May 07, 2014 at 05:40:13PM -0700, Mario Smarduch wrote:
Patch adds HYP interface for global VM TLB invalidation without address
parameter.
- Added ARM version of kvm_flush_remote_tlbs()
Signed-off-by: Mario Smarduch m.smard
Patch adds HYP interface for global VM TLB invalidation without address
parameter.
- Added ARM version of kvm_flush_remote_tlbs()
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/include/asm/kvm_host.h |2 ++
arch/arm/kvm
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and splits up existing huge pages.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 30 --
1 file changed, 28 insertions
Hi Gavin,
thanks, didn't catch that, I'll remove these calls.
- Mario
On 05/05/2014 04:34 PM, Gavin Guo wrote:
Hi Mario,
On Tue, Apr 29, 2014 at 9:06 AM, Mario Smarduch m.smard...@samsung.com
wrote:
This patch adds support for unmapping 2nd stage page tables for addresses
4GB
Patch adds support for live migration initial split up of huge pages
in memory slot and write protection of all pages in memory slot.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |8 ++
arch/arm/include/asm/kvm_mmu.h | 11 ++
arch/arm/kvm/arm.c
This patch adds support for keeping track of VM dirty pages, by updating
per memslot dirty bitmap and write protecting the page again.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |3 ++
arch/arm/kvm/arm.c |5 --
arch/arm/kvm
- Marc's comment
- changed Data Abort handler pte index handling - Marc's comment
Mario Smarduch (5):
add ARMv7 HYP API to flush VM TLBs without address param
live migration support for initial write protect of VM
live migration support for VM dirty log management
add 2nd stage page fault
This patch add support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and splits up existing huge pages.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 31 +--
1 file changed, 29 insertions
This patch adds support for unmapping 2nd stage page tables for addresses 4GB
on ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 20
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
On 04/24/2014 09:39 AM, Steve Capper wrote:
On Wed, Apr 23, 2014 at 12:18:07AM +0100, Mario Smarduch wrote:
Support for live migration initial write protect.
- moved write protect to architecture memory region prepare function. This
way you can fail, abort migration without keep track
- changed Data Abort handler pte index handling - Marc's comment
Mario Smarduch (4):
add ARMv7 HYP API to flush VM TLBs without address param
live migration support for initial write protect of VM to track dirty
pages
live migration support for VM dirty log management
add 2nd stage page
Add HYP interface for global VM TLB invalidation without address
parameter.
- Added ARM version of kvm_flush_remote_tlbs()
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/include/asm/kvm_host.h |2 ++
arch/arm/kvm/interrupts.S
()
- optimized initial write protect, skip upper table lookups
- added stage2pmd_addr_end() to do generic 4 level table walk
- changed kvm_flush_remote_tlbs() to weak function
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |8 ++
arch/arm/kvm/arm.c
- added pte_index() to add to pmd pfn
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/mmu.c | 31 +--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 52d4dd6..61ee812 100644
- made kvm_vm_ioctl_get_dirty_log() generic moved to kvm_main.c, deleted
arm,x86 versions
- optimized kvm_mmu_write_protected_pt_masked() to skip upper table lookups
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |3 ++
arch/arm/kvm/arm.c
Hi Marc,
+ if (migration_active hugetlb) {
+ pmd_t *pmd;
+ pfn += (fault_ipa PAGE_SHIFT)
+ (PTRS_PER_PMD-1);
MZ Shouldn't that be pfn += pte_index(fault_addr);?
MZ So let's play the difference game with x86:
int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log
kvm_vm_ioctl_get_dirty_log() is identical now to x86 version moved it to
kvm_main.c,
to make it generic, it's declared weak. Do I go into x86 and remove that
function?
Or
pages are broken up into small pages to support
migration on loaded systems.
Mario Smarduch (5):
add ARMv7 HYP API to flush VM TLBs without address param
live migration support for initial write protect of VM to manage
dirty pages
live migration support for VM dirty log management
add
.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |1 +
arch/arm/kvm/arm.c |4 ++
arch/arm/kvm/mmu.c | 125 +++
3 files changed, 130 insertions(+)
diff --git a/arch/arm/include/asm
Add HYP API to invalidate all VM TLBs without passing address parameter,
that kvm_tlb_flush_vmid_ipa() uses. Hopefully this is a valid way
to do it. Tests show nothing is broken.
The address parameter is confusing since whole VM is being invalidated.
Signed-off-by: Mario Smarduch m.smard
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