This patch fixes the following warning.
===
[ INFO: suspicious rcu_dereference_check() usage. ]
---
include/linux/kvm_host.h:259 invoked rcu_dereference_check() without
protection!
other info that
On 06/30/2010 04:18 PM, Alexander Graf wrote:
Book3s suffered from my really bad shadow MMU implementation so far. So
I finally got around to implement a combined hash and list mechanism that
allows for much faster lookup of mapped pages.
To show that it really is faster, I tried to run simple
Bugs item #2091534, was opened at 2008-09-03 19:27
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Bugs item #2084493, was opened at 2008-08-30 23:58
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Bugs item #2104495, was opened at 2008-09-11 00:12
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Bugs item #2113643, was opened at 2008-09-16 09:34
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Bugs item #2198658, was opened at 2008-10-26 21:06
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On 01.07.2010, at 09:29, Avi Kivity wrote:
On 06/30/2010 04:18 PM, Alexander Graf wrote:
Book3s suffered from my really bad shadow MMU implementation so far. So
I finally got around to implement a combined hash and list mechanism that
allows for much faster lookup of mapped pages.
To show
Bugs item #2386363, was opened at 2008-12-04 04:43
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On 07/01/2010 11:18 AM, Alexander Graf wrote:
How does dirty bitmap flushing work on x86 atm? I loop through all mapped pages
and flush the ones that match the range of the region I need to flush. But
wouldn't it be a lot more efficient to have an hlist in the memslot and loop
through that
Avi Kivity wrote:
On 07/01/2010 11:18 AM, Alexander Graf wrote:
How does dirty bitmap flushing work on x86 atm? I loop through all
mapped pages and flush the ones that match the range of the region I
need to flush. But wouldn't it be a lot more efficient to have an
hlist in the memslot and
When in kernel mode there are 4 additional registers available that are
simple data storage. Instead of exiting to the hypervisor to read and
write those, we can just share them with the guest using the page.
This patch converts all users of the current field to the shared page.
Signed-off-by:
On PPC we run PR=0 (kernel mode) code in PR=1 (user mode) and don't use the
hypervisor extensions.
While that is all great to show that virtualization is possible, there are
quite some cases where the emulation overhead of privileged instructions is
killing performance.
This patchset tackles
We will be introducing a method to project the shared page in guest context.
As soon as we're talking about this coupling, the shared page is colled magic
page.
This patch introduces simple defines, so the follow-up patches are easier to
read.
Signed-off-by: Alexander Graf ag...@suse.de
---
On PowerPC it's very normal to not support all of the physical RAM in real mode.
To check if we're matching on the shared page or not, we need to know the limits
so we can restrain ourselves to that range.
So let's make it a define instead of open-coding it. And while at it, let's also
increase
Now that we have the shared page in place and the MMU code knows about
the magic page, we can expose that capability to the guest!
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_para.h |2 ++
arch/powerpc/kvm/powerpc.c | 11 +++
2 files
Currently x86 is the only architecture that uses kvm_guest_init(). With
PowerPC we're getting a second user, but the signature is different there
and we don't need to export it, as it uses the normal kernel init framework.
So let's move the x86 specific definition of that function over to the x86
The PowerPC ISA has a special instruction for mtmsr that only changes the EE
and RI bits, namely the L=1 form.
Since that one is reasonably often occuring and simple to implement, let's
go with this first. Writing EE=0 is always just a store. Doing EE=1 also
requires us to check for pending
We just introduced a new PV interface that screams for documentation. So here
it is - a shiny new and awesome text file describing the internal works of
the PPC KVM paravirtual interface.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- clarify guest implementation
- clarify that
There is also a form of mtmsr where all bits need to be addressed. While the
PPC64 Linux kernel behaves resonably well here, on PPC32 we do not have an
L=1 form. It does mtmsr even for simple things like only changing EE.
So we need to hook into that one as well and check for a mask of bits that
We will need to patch several instruction streams over to a different
code path, so we need a way to patch a single instruction with a branch
somewhere else.
This patch adds a helper to facilitate this patching.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/kvm.c |5
We will soon require more sophisticated methods to replace single instructions
with multiple instructions. We do that by branching to a memory region where we
write replacement code for the instruction to.
This region needs to be within 32 MB of the patched instruction though, because
that's the
As we now have Book3s support for the magic page, we also need BookE to
join in on the party.
This patch implements generic magic page logic for BookE and specific
TLB logic for e500. I didn't have any 440 around, so I didn't dare to
blindly try and write up broken code.
Signed-off-by: Alexander
With our current MMU scheme we don't need to know about the tlbsync instruction.
So we can just nop it out.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins
---
arch/powerpc/kernel/kvm.c | 12
1 files changed, 12 insertions(+), 0 deletions(-)
diff
Some instructions can simply be replaced by load and store instructions to
or from the magic page.
This patch replaces often called instructions that fall into the above category.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins
---
arch/powerpc/kernel/kvm.c |
When we hook an instruction we need to make sure we don't clobber any of
the registers at that point. So we write them out to scratch space in the
magic page. To make sure we don't fall into a race with another piece of
hooked code, we need to disable interrupts.
To make the later patches and
We have all the hypervisor pieces in place now, but the guest parts are still
missing.
This patch implements basic awareness of KVM when running Linux as guest. It
doesn't do anything with it yet though.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/Makefile |2 ++
One of the most obvious registers to share with the guest directly is the
MSR. The MSR contains the interrupts enabled flag which the guest has to
toggle in critical sections.
So in order to bring the overhead of interrupt en- and disabling down, let's
put msr into the shared page. Keep in mind
While running in hooked code we need to store register contents out because
we must not clobber any registers.
So let's add some fields to the shared page we can just happily write to.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_para.h |3 +++
1 files
We will soon start and replace instructions from the text section with
other, paravirtualized versions. To ease the readability of those patches
I split out the generic looping and magic page mapping code out.
This patch still only contains stubs. But at least it loops through the
text section
The DAR register contains the address a data page fault occured at. This
register behaves pretty much like a simple data storage register that gets
written to on data faults. There is no hypervisor interaction required on
read or write.
This patch converts all users of the current field to the
We need to override EA as well as PA lookups for the magic page. When the guest
tells us to project it, the magic page overrides any guest mappings.
In order to reflect that, we need to hook into all the MMU layers of KVM to
force map the magic page if necessary.
Signed-off-by: Alexander Graf
To communicate with KVM directly we need to plumb some sort of interface
between the guest and KVM. Usually those interfaces use hypercalls.
This hypercall implementation is described in the last patch of the series
in a special documentation file. Please read that for further information.
This
For transparent variable sharing between the hypervisor and guest, I introduce
a shared page. This shared page will contain all the registers the guest can
read and write safely without exiting guest context.
This patch only implements the stubs required for the basic structure of the
shared
When the guest turns on interrupts again, it needs to know if we have an
interrupt pending for it. Because if so, it should rather get out of guest
context and get the interrupt.
So we introduce a new field in the shared page that we use to tell the guest
that there's a pending interrupt lying
The DSISR register contains information about a data page fault. It is fully
read/write from inside the guest context and we don't need to worry about
interacting based on writes of this register.
This patch converts all users of the current field to the shared page.
Signed-off-by: Alexander
Bugs item #3022896, was opened at 2010-06-29 18:39
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Author: Sridhar Samudrala s...@us.ibm.com
sched: export sched_set/getaffinity to modules
vhost-net driver wants to copy the affinity from the
owner thread to thread it creates. Export
sched_set/get affinity to modules to make this possible
when vhost is built as a module.
Signed-off-by: Sridhar
On 07/01/2010 01:00 PM, Alexander Graf wrote:
But doesn't that mean that you still need to loop through all the hvas
that you want to invalidate?
It does.
Wouldn't it speed up dirty bitmap flushing
a lot if we'd just have a simple linked list of all sPTEs belonging to
that memslot?
On Thu, Jul 01, 2010 at 12:42:49PM +0200, Alexander Graf wrote:
As we now have Book3s support for the magic page, we also need BookE to
join in on the party.
This patch implements generic magic page logic for BookE and specific
TLB logic for e500. I didn't have any 440 around, so I didn't dare to
On Thu, 2010-07-01 at 14:07 +0300, Michael S. Tsirkin wrote:
Author: Sridhar Samudrala s...@us.ibm.com
sched: export sched_set/getaffinity to modules
vhost-net driver wants to copy the affinity from the
owner thread to thread it creates. Export
sched_set/get affinity to modules to make
On Thu, 2010-07-01 at 13:19 +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:07 +0300, Michael S. Tsirkin wrote:
Author: Sridhar Samudrala s...@us.ibm.com
sched: export sched_set/getaffinity to modules
vhost-net driver wants to copy the affinity from the
owner thread to thread
On 06/30/2010 09:25 PM, BuraphaLinux Server wrote:
Can you downgrade the kernel to a known good one to see which component
causes the failure?
Thank you for your suggestion. Changing only the kernel back to
2.6.32.14 and changing nothing else, the qemu/kvm works well.
However, I want
On Thu, Jul 01, 2010 at 08:50:58AM +0800, Xiao Guangrong wrote:
Marcelo Tosatti wrote:
- if (is_shadow_present_pte(*sptep) !is_large_pte(*sptep))
- continue;
+ if (is_shadow_present_pte(*sptep) !is_large_pte(*sptep)) {
+ struct
On Wed, Jun 30, 2010 at 04:05:00PM +0800, Xiao Guangrong wrote:
Cleanup this function that we are already get the direct sp's access
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/paging_tmpl.h | 19 ---
1 files changed, 8 insertions(+), 11
On 07/01/2010 04:11 AM, Xiao Guangrong wrote:
Marcelo Tosatti wrote:
+
+ addr = gfn_to_hva_many(vcpu-kvm, gfn,entry);
+ if (kvm_is_error_hva(addr))
+ return -1;
+
+ entry = min(entry, (int)(end - start));
+ ret
Avi Kivity wrote:
On 07/01/2010 04:11 AM, Xiao Guangrong wrote:
Marcelo Tosatti wrote:
+
+addr = gfn_to_hva_many(vcpu-kvm, gfn,entry);
+if (kvm_is_error_hva(addr))
+return -1;
+
+entry = min(entry, (int)(end - start));
+ret =
Josh Boyer wrote:
On Thu, Jul 01, 2010 at 12:42:49PM +0200, Alexander Graf wrote:
As we now have Book3s support for the magic page, we also need BookE to
join in on the party.
This patch implements generic magic page logic for BookE and specific
TLB logic for e500. I didn't have any 440
On Thu, Jul 01, 2010 at 08:13:40PM +0800, Xiao Guangrong wrote:
Avi Kivity wrote:
On 07/01/2010 04:11 AM, Xiao Guangrong wrote:
Marcelo Tosatti wrote:
+
+addr = gfn_to_hva_many(vcpu-kvm, gfn,entry);
+if (kvm_is_error_hva(addr))
+return -1;
+
Avi Kivity wrote:
On 07/01/2010 01:00 PM, Alexander Graf wrote:
But doesn't that mean that you still need to loop through all the hvas
that you want to invalidate?
It does.
Wouldn't it speed up dirty bitmap flushing
a lot if we'd just have a simple linked list of all sPTEs belonging to
On Thu, Jul 01, 2010 at 02:55:07PM +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 01:43:23PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 13:19 +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:07 +0300, Michael S. Tsirkin wrote:
Author: Sridhar Samudrala
On Thu, 2010-07-01 at 14:55 +0300, Michael S. Tsirkin wrote:
- why can't it set the kernel thread's affinity too?
It can. However: the threads are started internally by the driver
when qemu does an ioctl. What we want to do is give it a sensible
default affinity. management tool can
On Thu, 2010-07-01 at 15:23 +0300, Michael S. Tsirkin wrote:
The patch using this is here:
http://www.mail-archive.com/kvm@vger.kernel.org/msg35411.html
It simply copies the affinity from the parent when thread is created.
Sounds like policy, not something the kernel should do..
--
To
On 07/01/2010 03:28 PM, Alexander Graf wrote:
Wouldn't it speed up dirty bitmap flushing
a lot if we'd just have a simple linked list of all sPTEs belonging to
that memslot?
The complexity is O(pages_in_slot) + O(sptes_for_slot).
Usually, every page is mapped at least once, so
On Thu, 2010-07-01 at 14:34 +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 15:23 +0300, Michael S. Tsirkin wrote:
The patch using this is here:
http://www.mail-archive.com/kvm@vger.kernel.org/msg35411.html
It simply copies the affinity from the parent when thread is created.
Avi Kivity wrote:
On 07/01/2010 03:28 PM, Alexander Graf wrote:
Wouldn't it speed up dirty bitmap flushing
a lot if we'd just have a simple linked list of all sPTEs belonging to
that memslot?
The complexity is O(pages_in_slot) + O(sptes_for_slot).
Usually, every page is
On Thu, Jul 01, 2010 at 02:32:43PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:55 +0300, Michael S. Tsirkin wrote:
- why can't it set the kernel thread's affinity too?
It can. However: the threads are started internally by the driver
when qemu does an ioctl. What we want
On Thu, 2010-07-01 at 15:50 +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 02:32:43PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:55 +0300, Michael S. Tsirkin wrote:
- why can't it set the kernel thread's affinity too?
It can. However: the threads are started
On Thu, Jul 01, 2010 at 02:46:35PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:34 +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 15:23 +0300, Michael S. Tsirkin wrote:
The patch using this is here:
http://www.mail-archive.com/kvm@vger.kernel.org/msg35411.html
It
On Tue, Jun 29, 2010 at 07:29:01PM -0400, Chetan Loke wrote:
Brief discussion thread - http://lkml.org/lkml/2010/6/29/355
Added VMware detection via cpuid.Mimic'd VMware's balloon driver's init-time
check(cpuid followed by dmi-checks). Moved the existing logic into a simple
function to
On Thu, Jul 01, 2010 at 03:07:26PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 15:50 +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 02:32:43PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:55 +0300, Michael S. Tsirkin wrote:
- why can't it set the kernel
On Thu, 2010-07-01 at 16:08 +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 02:46:35PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:34 +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 15:23 +0300, Michael S. Tsirkin wrote:
The patch using this is here:
On 07/01/2010 03:52 PM, Alexander Graf wrote:
Don't you use lazy spte updates?
We do, but given enough time, the guest will touch its entire memory.
Oh, so that's the major difference. On PPC we have the HTAB with a
fraction of all the mapped pages in it. We don't have a
On Thu, Jul 01, 2010 at 03:30:24PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 16:08 +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 02:46:35PM +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 14:34 +0200, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 15:23 +0300, Michael
Introduce gfn_to_pfn_atomic(), it's the fast path and can used in atomic
context, the later patch will use it
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/mm/gup.c|2 ++
include/linux/kvm_host.h |1 +
virt/kvm/kvm_main.c | 32
This function not only return the gfn's page but also the page number
after @gfn in the slot
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
include/linux/kvm_host.h |2 ++
virt/kvm/kvm_main.c | 29 -
2 files changed, 30 insertions(+), 1
Introduce this function to topup prefetch cache
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c | 25 +
1 files changed, 21 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a0c5c31..6673484
On Thu, 2010-07-01 at 16:39 +0300, Michael S. Tsirkin wrote:
The proposed patch kills the thread when the fd is closed,
so I think this already works without making it part of the process.
OK, fd bound resources are fine.
--
To unsubscribe from this list: send the line unsubscribe kvm in
the
Support prefetch ptes when intercept guest #PF, avoid to #PF by later
access
If we meet any failure in the prefetch path, we will exit it and
not try other ptes to avoid become heavy path
Note: this speculative will mark page become dirty but it not really
accessed, the same issue is in other
Combine guest pte read between guest pte walk and pte prefetch
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/paging_tmpl.h | 48 ++-
1 files changed, 33 insertions(+), 15 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h
Hi, Avi, Marcelo,
these two patches currently lie on the bottom of my npt-npt patch set. They
came out of a discussion on the mailing list about the last version of the
npt-npt patchset. These patches are independent of the rest of the patchset, so
I post and discuss them seperatly. The changes
This patch converts unnecessary divide and modulo operations
in the KVM large page related code into logical operations.
This allows to convert gfn_t to u64 while not breaking 32
bit builds.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/ia64/include/asm/kvm_host.h|1 +
For 32bit machines where the physical address width is
larger than the virtual address width the frame number types
in KVM may overflow. Fix this by changing them to u64.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
include/linux/kvm_types.h |4 ++--
virt/kvm/iommu.c |2
Trace pte prefetch, it can help us to improve the prefetch's performance
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/kvm/mmu.c | 41 +++--
arch/x86/kvm/mmutrace.h| 33 +
Turns out $(tests-common) does not encompass all flat files
built for the unittests. So let's fix the makefile install
rule to include all flat files generated by the make
procedure.
Signed-off-by: Lucas Meneghel Rodrigues l...@redhat.com
---
kvm/test/config-x86-common.mak |2 +-
1 files
On 07/01/2010 05:00 PM, Joerg Roedel wrote:
This patch converts unnecessary divide and modulo operations
in the KVM large page related code into logical operations.
This allows to convert gfn_t to u64 while not breaking 32
bit builds.
#define KVM_NR_PAGE_SIZES 2
-#define KVM_HPAGE_SHIFT(x)
On 07/01/2010 05:00 PM, Joerg Roedel wrote:
Hi, Avi, Marcelo,
these two patches currently lie on the bottom of my npt-npt patch set. They
came out of a discussion on the mailing list about the last version of the
npt-npt patchset. These patches are independent of the rest of the patchset, so
I
On Thu, Jul 1, 2010 at 9:15 AM, Richard W.M. Jones rjo...@redhat.com wrote:
On Tue, Jun 29, 2010 at 07:29:01PM -0400, Chetan Loke wrote:
Brief discussion thread - http://lkml.org/lkml/2010/6/29/355
Added VMware detection via cpuid.Mimic'd VMware's balloon driver's init-time
check(cpuid
Hello,
On 07/01/2010 03:39 PM, Michael S. Tsirkin wrote:
I think that's called kernel_thread() see
kernel/kthread.c:create_kthread().
Doing the whole kthreadd dance and then copying bits and pieces back
sounds very fragile, so yeah, something like that should work.
Thanks!
Sridhar,
On 07/01, Peter Zijlstra wrote:
On Thu, 2010-07-01 at 16:08 +0300, Michael S. Tsirkin wrote:
Maybe it makes sense to add kthread_clone (in addition to
kthread_create) that would do what you suggest?
If yes, any hints on an implementation?
I think that's called kernel_thread() see
On 06/30/2010 05:27 PM, jes.soren...@redhat.com wrote:
From: Jes Sorensenjes.soren...@redhat.com
MSR_P6_EVNTSEL0 and MSR_P6_PERFCTR0 are used to probe for the P6 PMU
for older family 6 CPUs, which is also the default in QEMU. Ie. per
default we get the noise of these warnings in dmesg,
On 07/01/10 16:38, Avi Kivity wrote:
On 06/30/2010 05:27 PM, jes.soren...@redhat.com wrote:
From: Jes Sorensenjes.soren...@redhat.com
MSR_P6_EVNTSEL0 and MSR_P6_PERFCTR0 are used to probe for the P6 PMU
for older family 6 CPUs, which is also the default in QEMU. Ie. per
default we get the
On 06/30/2010 06:39 PM, Lucas Meneghel Rodrigues wrote:
By default, HPET is enabled on qemu and no time drift
mitigation is being made for it. So, add -no-hpet
if qemu supports it, during windows timedrift tests.
Hm, you're compensating for a qemu bug by not testing it.
Can we have an
On 07/01/2010 05:41 PM, Jes Sorensen wrote:
On 07/01/10 16:38, Avi Kivity wrote:
On 06/30/2010 05:27 PM, jes.soren...@redhat.com wrote:
From: Jes Sorensenjes.soren...@redhat.com
MSR_P6_EVNTSEL0 and MSR_P6_PERFCTR0 are used to probe for the P6 PMU
for older family 6 CPUs, which is
On 07/01/10 16:44, Avi Kivity wrote:
On 07/01/2010 05:41 PM, Jes Sorensen wrote:
Saw it, which is why I only suggest we remove EVNTSEL0 and PERFCTR0 but
not the others. If the guest is expecting normal operation it is likely
to use more than just the first.
Why is that?
Depends on
On 07/01, Tejun Heo wrote:
All that's necessary is shortcutting indirection through kthreadd.
ie. An exported function which looks like the following,
struct kthread_clone_or_whatever(int (*threadfn).)
{
struct kthread_create_info create;
int pid;
INIT create;
Hello,
On 07/01/2010 04:46 PM, Oleg Nesterov wrote:
It might be a good idea to make the function take extra clone flags
but anyways once created cloned task can be treated the same way as
other kthreads, so nothing else needs to be changed.
This makes kthread_stop() work. Otherwise the new
On Thu, 2010-07-01 at 16:53 +0200, Tejun Heo wrote:
Hello,
On 07/01/2010 04:46 PM, Oleg Nesterov wrote:
It might be a good idea to make the function take extra clone flags
but anyways once created cloned task can be treated the same way as
other kthreads, so nothing else needs to be
On 07/01/2010 05:47 PM, Jes Sorensen wrote:
On 07/01/10 16:44, Avi Kivity wrote:
On 07/01/2010 05:41 PM, Jes Sorensen wrote:
Saw it, which is why I only suggest we remove EVNTSEL0 and PERFCTR0 but
not the others. If the guest is expecting normal operation it is likely
to use more
On Tue, 2010-06-08 at 14:21 -0700, Tom Lyon wrote:
+The VFIO_DMA_MASK ioctl is used to set the maximum permissible DMA address
+(device dependent). It takes a single unsigned 64 bit integer as an argument.
+This call also has the side effect of enabling PCI bus mastership.
Hi Tom,
This
On Thu, Jul 01, 2010 at 09:29:04AM -0600, Alex Williamson wrote:
On Tue, 2010-06-08 at 14:21 -0700, Tom Lyon wrote:
+The VFIO_DMA_MASK ioctl is used to set the maximum permissible DMA address
+(device dependent). It takes a single unsigned 64 bit integer as an
argument.
+This call also
On Thu, 2010-07-01 at 18:31 +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 09:29:04AM -0600, Alex Williamson wrote:
On Tue, 2010-06-08 at 14:21 -0700, Tom Lyon wrote:
+The VFIO_DMA_MASK ioctl is used to set the maximum permissible DMA
address
+(device dependent). It takes a
On Thu, 2010-07-01 at 17:42 +0300, Avi Kivity wrote:
On 06/30/2010 06:39 PM, Lucas Meneghel Rodrigues wrote:
By default, HPET is enabled on qemu and no time drift
mitigation is being made for it. So, add -no-hpet
if qemu supports it, during windows timedrift tests.
Hm, you're
This patch fixes the following warning.
===
[ INFO: suspicious rcu_dereference_check() usage. ]
---
include/linux/kvm_host.h:259 invoked rcu_dereference_check() without
protection!
other info that
On Fri, Jul 02, 2010 at 12:11:53AM +0800, Sheng Yang wrote:
This patch fixes the following warning.
===
[ INFO: suspicious rcu_dereference_check() usage. ]
---
include/linux/kvm_host.h:259
On Thu, Jul 01, 2010 at 03:00:50PM +0800, Sheng Yang wrote:
This patch fixes the following warning.
===
[ INFO: suspicious rcu_dereference_check() usage. ]
---
include/linux/kvm_host.h:259
On Wed, Jun 30, 2010 at 03:18:44PM +0200, Alexander Graf wrote:
Book3s suffered from my really bad shadow MMU implementation so far. So
I finally got around to implement a combined hash and list mechanism that
allows for much faster lookup of mapped pages.
To show that it really is faster, I
On Thu, Jul 01, 2010 at 09:48:41AM -0600, Alex Williamson wrote:
On Thu, 2010-07-01 at 18:31 +0300, Michael S. Tsirkin wrote:
On Thu, Jul 01, 2010 at 09:29:04AM -0600, Alex Williamson wrote:
On Tue, 2010-06-08 at 14:21 -0700, Tom Lyon wrote:
+The VFIO_DMA_MASK ioctl is used to set the
Alexander Graf wrote:
Due to previous changes, the Book3S_32 guest MMU code didn't compile properly
when enabling debugging.
This patch repairs the broken code paths, making it possible to define
DEBUG_MMU
and friends again.
Signed-off-by: Alexander Graf ag...@suse.de
Please also
David,
The following tree includes more fixes dealing with
error handling in vhost-net. It is on top of net-2.6.
Please merge it for 2.6.35.
Thanks!
The following changes since commit 38000a94a902e94ca8b5498f7871c6316de8957a:
sky2: enable rx/tx in sky2_phy_reinit() (2010-06-23 14:37:04 -0700)
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