On Sun, Jun 17, 2012 at 04:15:44PM -0600, Alex Williamson wrote:
On Sun, Jun 17, 2012 at 3:38 PM, Alex Williamson
alex.william...@redhat.com wrote:
On Sun, 2012-06-17 at 21:44 +0300, Michael S. Tsirkin wrote:
On Sat, Jun 16, 2012 at 10:34:39AM -0600, Alex Williamson wrote:
I'm looking for
This patchset implements bio-based IO path for virito-blk to improve
performance.
Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16%
latency improvement for sequential read/write, random read/write respectively.
Asias He (3):
block: Introduce __blk_segment_map_sg()
Split the mapping code in blk_rq_map_sg() to a helper
__blk_segment_map_sg(), so that other mapping function, e.g.
blk_bio_map_sg(), can share the code.
Cc: Jens Axboe ax...@kernel.dk
Cc: Tejun Heo t...@kernel.org
Cc: Shaohua Li s...@kernel.org
Cc: linux-ker...@vger.kernel.org
Suggested-by: Tejun
Add a helper to map a bio to a scatterlist, modelled after
blk_rq_map_sg.
This helper is useful for any driver that wants to create
a scatterlist from its -make_request_fn method.
Changes in v2:
- Use __blk_segment_map_sg to avoid duplicated code
- Add cocbook style function comment
Cc: Jens
This patch introduces bio-based IO path for virtio-blk.
Compared to request-based IO path, bio-based IO path uses driver
provided -make_request_fn() method to bypasses the IO scheduler. It
handles the bio to device directly without allocating a request in block
layer. This reduces the IO path in
Date: Sat, 16 Jun 2012 13:19:53 +0800
Subject: Re: Bug? 100% load on core after physically removing USB storage
from host
From: centos.ad...@gmail.com
To: verucasal...@hotmail.co.uk
CC: stefa...@gmail.com; kvm@vger.kernel.org; kra...@redhat.com
Hi, Avi, Yanfei
I'm YOSHIDA Masanori from Hitachi, a developer of livedump.
And here is a new case from the LinuxCon Japan:
Developers from Hitach are now developing a new livedump mechanism for the
same reason as ours. They have come to the situation *many times* that guest
machines
On Mon, 18 Jun 2012 14:53:10 +0800, Asias He as...@redhat.com wrote:
This patch introduces bio-based IO path for virtio-blk.
Why make it optional?
Thanks,
Rusty.
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More majordomo
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias He as...@redhat.com wrote:
This patch introduces bio-based IO path for virtio-blk.
Why make it optional?
request-based IO path is useful for users who do not want to bypass the
IO scheduler in guest
On 06/16/2012 07:34 PM, Alex Williamson wrote:
I'm looking for opinions on this approach. For vfio device assignment
we minimally need a way to get EOIs from the in-kernel irqchip out to
userspace. Getting that out via an eventfd would allow us to bounce
all level interrupts out to
On Sat, Jun 16, 2012 at 6:16 AM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
On 6/13/12, Stefan Hajnoczi stefa...@gmail.com wrote:
Since system time is a large chunk you could use strace -f -p $(pgrep
qemu-kvm) or other system call tracing tools to see what the qemu-kvm
process is doing.
Hi All,
This is KVM upstream test result against kvm.git next branch and qemu-kvm.git
master branch.
kvm.git next branch: 25e531a988ea5a64bd97a72dc9d3c65ad5850120 based on
kernel 3.5.0-rc1
qemu-kvm.git master branch: 0a948cbb1835e5f36990e173966d30bc4c8cc038
We found 1 new bug
-Original Message-
From: Michael S. Tsirkin [mailto:m...@redhat.com]
Sent: Monday, June 11, 2012 6:22 PM
To: Avi Kivity
Cc: Jan Kiszka; Thomas Gleixner; Alex Williamson; kvm@vger.kernel.org;
mtosa...@redhat.com; linux-ker...@vger.kernel.org; Ren, Yongjie
Subject: Re: [PATCH] KVM:
On 2012-06-18 10:02, Avi Kivity wrote:
On 06/16/2012 07:34 PM, Alex Williamson wrote:
I'm looking for opinions on this approach. For vfio device assignment
we minimally need a way to get EOIs from the in-kernel irqchip out to
userspace. Getting that out via an eventfd would allow us to
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16%
latency improvement for sequential read/write, random read/write respectively.
Sounds great. What storage configuration did you use (single spinning
On 06/18/2012 11:52 AM, Jan Kiszka wrote:
I don't understand how this works. A level IRQ isn't de-asserted by the
EOI, it's de-asserted by its source.
Consider the following sequence:
deviceguest
event
assert
interrupt
interrupt handler
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
+static void virtblk_add_buf_wait(struct virtio_blk *vblk,
+ struct virtblk_req *vbr,
+ unsigned long out,
+ unsigned long in)
+{
+
On 06/18/2012 05:14 PM, Stefan Hajnoczi wrote:
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16%
latency improvement for sequential read/write, random read/write respectively.
Sounds great. What
On 06/16/2012 05:11 AM, Marcelo Tosatti wrote:
Can you introduce a separate exit reason, say KVM_EXIT_READ_FAULT, with
information about the fault?
I think you mean WRITE_FAULT. But what's wrong with the normal mmio exit?
Then perform this exit only if userspace allows it by explicit
On Mon, Jun 18, 2012 at 12:33:01PM +0300, Avi Kivity wrote:
On 06/18/2012 11:52 AM, Jan Kiszka wrote:
I don't understand how this works. A level IRQ isn't de-asserted by the
EOI, it's de-asserted by its source.
Consider the following sequence:
deviceguest
event
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll eventfd and reinject an interrupt.
Of course to bypass qemu completely we also need to support reads over
ioeventfd somehow.
eventfd is not suitable for level triggered interrupts
On 06/12/2012 05:48 AM, Xiao Guangrong wrote:
This parameter will be used in the later patch
- return hva_to_pfn(kvm, addr, atomic, async, write_fault, writable);
+ return hva_to_pfn(kvm, slot, addr, atomic, async, write_fault,
+ writable);
}
pfn_t
On 06/12/2012 05:48 AM, Xiao Guangrong wrote:
This set of functions is only used to read data from host space, read is
a special case in the later patch
+/*
+ * The hva returned by this function is only allowed to be read.
+ * It should pair with kvm_read_hva() or kvm_read_hva_atomic().
On Mon, 18 Jun 2012 16:03:23 +0800, Asias He as...@redhat.com wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias He as...@redhat.com wrote:
This patch introduces bio-based IO path for virtio-blk.
Why make it optional?
request-based IO path is
On Mon, Jun 18, 2012 at 02:53:10PM +0800, Asias He wrote:
+static void virtblk_make_request(struct request_queue *q, struct bio *bio)
+{
+ struct virtio_blk *vblk = q-queuedata;
+ unsigned int num, out = 0, in = 0;
+ struct virtblk_req *vbr;
+
+ BUG_ON(bio-bi_phys_segments +
On Mon, Jun 18, 2012 at 11:21 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Mon, Jun 18, 2012 at 02:53:10PM +0800, Asias He wrote:
+static void virtblk_make_request(struct request_queue *q, struct bio *bio)
+{
+ struct virtio_blk *vblk = q-queuedata;
+ unsigned int num, out = 0, in
On Mon, Jun 18, 2012 at 01:14:13PM +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll eventfd and reinject an interrupt.
Of course to bypass qemu completely we also need to support reads over
ioeventfd
On Mon, Jun 18, 2012 at 10:39 AM, Asias He as...@redhat.com wrote:
On 06/18/2012 05:14 PM, Stefan Hajnoczi wrote:
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%,
16%
latency improvement for
On 06/11/2012 01:21 PM, Michael S. Tsirkin wrote:
On Mon, Jun 11, 2012 at 01:01:41PM +0300, Avi Kivity wrote:
On 06/08/2012 05:50 PM, Jan Kiszka wrote:
Pls correct me if I'm wrong.
Well, IIRC, the don't loop over all vcpus with IRQs or preemption
disabled was one argument against
On 06/18/2012 01:55 PM, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 01:14:13PM +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll eventfd and reinject an interrupt.
Of course to bypass qemu
On 06/18/2012 01:05 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias Heas...@redhat.com wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias Heas...@redhat.com wrote:
This patch introduces bio-based IO path for virtio-blk.
Why
On Mon, Jun 18, 2012 at 02:03:40PM +0300, Avi Kivity wrote:
On 06/18/2012 01:55 PM, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 01:14:13PM +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll
https://bugzilla.kernel.org/show_bug.cgi?id=43501
--- Comment #5 from Avi Kivity a...@redhat.com 2012-06-18 11:22:21 ---
I'm not sure that the vendor string is passed correctly.
Please verify that when starting the guest on an Intel host, /proc/cpuinfo
shows AuthenticAMD for vendor_id.
--
On Mon, 2012-06-18 at 14:14 +0300, Dor Laor wrote:
On 06/18/2012 01:05 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias Heas...@redhat.com wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias Heas...@redhat.com wrote:
This patch
On Wed, Nov 09, 2011 at 02:36:43PM +0200, Pekka Enberg wrote:
On Wed, 9 Nov 2011, Sasha Levin wrote:
They don't exist in kernel code either, for same reason as above.
Nothing will break if we remove it since no one really used it, we were
probably the first and only implementation of the
On 06/15/2012 02:31 PM, Takuya Yoshikawa wrote:
This restricts hva handling in mmu code and makes it easier to extend
kvm_handle_hva() so that it can treat a range of addresses later in this
patch series.
kvm_for_each_memslot(memslot, slots) {
- unsigned long start =
On Mon, 2012-06-18 at 14:54 +0300, Michael S. Tsirkin wrote:
On Wed, Nov 09, 2011 at 02:36:43PM +0200, Pekka Enberg wrote:
On Wed, 9 Nov 2011, Sasha Levin wrote:
They don't exist in kernel code either, for same reason as above.
Nothing will break if we remove it since no one really used
On Tue, Mar 20, 2012 at 10:22:42AM +1030, Rusty Russell wrote:
On Mon, 19 Mar 2012 17:13:06 -0500, Anthony Liguori anth...@codemonkey.ws
wrote:
Maybe just make this a hidden option like x-miio?
x-violate-the-virtio-spec-to-trick-old-linux-drivers-into-working-on-power?
To configure
On Mon, Jun 18, 2012 at 02:05:17PM +0200, Sasha Levin wrote:
On Mon, 2012-06-18 at 14:54 +0300, Michael S. Tsirkin wrote:
On Wed, Nov 09, 2011 at 02:36:43PM +0200, Pekka Enberg wrote:
On Wed, 9 Nov 2011, Sasha Levin wrote:
They don't exist in kernel code either, for same reason as above.
On 06/15/2012 02:32 PM, Takuya Yoshikawa wrote:
When guest's memory is backed by THP pages, MMU notifier needs to call
kvm_unmap_hva(), which in turn leads to kvm_handle_hva(), in a loop to
invalidate a range of pages which constitute one huge page:
for each guest page
for each
https://bugzilla.kernel.org/show_bug.cgi?id=43501
--- Comment #6 from Avi Kivity a...@redhat.com 2012-06-18 12:44:18 ---
(In reply to comment #4)
(In reply to comment #1)
What host kernel are you using?
2.6.32-220.17.1.el6.x86_64 (SL 6.2)
This bugzilla is for upstream kernels. Use
On 06/15/2012 10:07 PM, Christoffer Dall wrote:
From: Marc Zyngier marc.zyng...@arm.com
The KVM code sometimes uses CONFIG_HAVE_KVM_IRQCHIP to protect
code that is related to IRQ routing, which not all in-kernel
irqchips may support.
Use KVM_CAP_IRQ_ROUTING instead.
Thanks, applied.
--
On 06/15/2012 10:07 PM, Christoffer Dall wrote:
This is a preparatory patch for the KVM/ARM implementation. KVM/ARM will use
the KVM_IRQ_LINE ioctl, which is currently conditional on
__KVM_HAVE_IOAPIC, but ARM obviously doesn't have any IOAPIC support and we
need a separate define.
Thanks,
On 06/15/2012 10:07 PM, Christoffer Dall wrote:
From: Marc Zyngier marc.zyng...@arm.com
In order to avoid compilation failure when KVM is not compiled in,
guard the mmu_notifier specific sections with both CONFIG_MMU_NOTIFIER
and KVM_ARCH_WANT_MMU_NOTIFIER, like it is being done in the rest
On 06/15/2012 10:07 PM, Christoffer Dall wrote:
Adds support in the identity mapping feature that allows KVM to setup
identity mapping for the Hyp mode with the AP[1] bit set as required by
the specification and also supports freeing created sub pmd's after
finished use.
These two
On Mon, 18 Jun 2012 15:11:42 +0300
Avi Kivity a...@redhat.com wrote:
kvm_for_each_memslot(memslot, slots) {
- gfn_t gfn = hva_to_gfn(hva, memslot);
+ gfn_t gfn = hva_to_gfn(start_hva, memslot);
+ gfn_t end_gfn = hva_to_gfn(end_hva, memslot);
These
https://bugzilla.kernel.org/show_bug.cgi?id=14836
Alan a...@lxorguk.ukuu.org.uk changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
https://bugzilla.kernel.org/show_bug.cgi?id=14836
Alan a...@lxorguk.ukuu.org.uk changed:
What|Removed |Added
Status|RESOLVED|CLOSED
--
Configure
On 06/15/2012 10:08 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
Userspace can inject IRQs and FIQs through the KVM_IRQ_LINE VM ioctl.
This ioctl is used since the sematics are in fact two lines that can be
either raised or lowered on the VCPU - the IRQ and FIQ
On 06/15/2012 10:08 PM, Christoffer Dall wrote:
Provides complete world-switch implementation to switch to other guests
running in non-secure modes. Includes Hyp exception handlers that
capture necessary exception information and stores the information on
the VCPU and KVM structures.
On 06/15/2012 10:09 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific kernel memory types, PAGE_KVM_GUEST and
pgprot_guest variables used
On 06/15/2012 10:09 PM, Christoffer Dall wrote:
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
(physical address, read/write, length, register) and forwarding reads
and writes to QEMU which performs the device
On Mon, 2012-06-18 at 09:00 +0300, Michael S. Tsirkin wrote:
On Sun, Jun 17, 2012 at 04:15:44PM -0600, Alex Williamson wrote:
On Sun, Jun 17, 2012 at 3:38 PM, Alex Williamson
alex.william...@redhat.com wrote:
On Sun, 2012-06-17 at 21:44 +0300, Michael S. Tsirkin wrote:
On Sat, Jun 16,
On Mon, 2012-06-18 at 08:51 +0300, Michael S. Tsirkin wrote:
On Sun, Jun 17, 2012 at 03:38:57PM -0600, Alex Williamson wrote:
On Sun, 2012-06-17 at 21:44 +0300, Michael S. Tsirkin wrote:
On Sat, Jun 16, 2012 at 10:34:39AM -0600, Alex Williamson wrote:
I'm looking for opinions on this
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will use indirect
descriptors even if we have plenty of space in the ring. This means that
we take a performance hit at all times due to the overhead of creating
indirect descriptors.
Instead, use it only after we're below a configurable
Currently if VIRTIO_RING_F_INDIRECT_DESC is enabled we will
use indirect descriptors and allocate them using a simple
kmalloc().
This patch adds a cache which will allow indirect buffers under
a configurable size to be allocated from that cache instead.
Signed-off-by: Sasha Levin
Am 12.06.2012 19:34, schrieb Avi Kivity:
Null SS is valid in long mode; allow loading it.
Signed-off-by: Avi Kivity a...@redhat.com
The documentation suggests that trying to load it in CPL 3 should still
fail in long mode.
Kevin
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To unsubscribe from this list: send the line unsubscribe kvm
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
The idea is simple: there's a bit, per APIC, in guest memory,
that tells the guest that it does not need EOI.
Guest tests it using a single est and clear operation - this is
necessary so that host can detect interrupt nesting - and if set, it
On Mon, 2012-06-18 at 11:02 +0300, Avi Kivity wrote:
On 06/16/2012 07:34 PM, Alex Williamson wrote:
I'm looking for opinions on this approach. For vfio device assignment
we minimally need a way to get EOIs from the in-kernel irqchip out to
userspace. Getting that out via an eventfd would
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
Document the new EOI MSR. Couldn't decide whether this change belongs
conceptually on guest or host side, so a separate patch.
Signed-off-by: Michael S. Tsirkin m...@redhat.com
---
Documentation/virtual/kvm/msr.txt | 32
On Mon, 2012-06-18 at 13:11 +0300, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 12:33:01PM +0300, Avi Kivity wrote:
On 06/18/2012 11:52 AM, Jan Kiszka wrote:
I don't understand how this works. A level IRQ isn't de-asserted by the
EOI, it's de-asserted by its source.
On 06/18/2012 05:14 PM, Kevin Wolf wrote:
Am 12.06.2012 19:34, schrieb Avi Kivity:
Null SS is valid in long mode; allow loading it.
Signed-off-by: Avi Kivity a...@redhat.com
The documentation suggests that trying to load it in CPL 3 should still
fail in long mode.
Right, good catch.
--
On Mon, 2012-06-18 at 13:14 +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll eventfd and reinject an interrupt.
Of course to bypass qemu completely we also need to support reads over
ioeventfd
On Mon, 2012-06-18 at 14:17 +0300, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 02:03:40PM +0300, Avi Kivity wrote:
On 06/18/2012 01:55 PM, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 01:14:13PM +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
On 06/18/2012 05:27 PM, Alex Williamson wrote:
On Mon, 2012-06-18 at 13:14 +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll eventfd and reinject an interrupt.
Of course to bypass qemu completely we
On 06/18/2012 05:18 PM, Alex Williamson wrote:
I don't understand how this works. A level IRQ isn't de-asserted by the
EOI, it's de-asserted by its source.
Consider the following sequence:
deviceguest
event
assert
interrupt
interrupt
On Mon, Jun 18, 2012 at 05:17:24PM +0300, Avi Kivity wrote:
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
The idea is simple: there's a bit, per APIC, in guest memory,
that tells the guest that it does not need EOI.
Guest tests it using a single est and clear operation - this is
On Mon, Jun 18, 2012 at 05:20:01PM +0300, Avi Kivity wrote:
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
Document the new EOI MSR. Couldn't decide whether this change belongs
conceptually on guest or host side, so a separate patch.
Signed-off-by: Michael S. Tsirkin m...@redhat.com
On Mon, Jun 18, 2012 at 05:20:01PM +0300, Avi Kivity wrote:
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
Document the new EOI MSR. Couldn't decide whether this change belongs
conceptually on guest or host side, so a separate patch.
Signed-off-by: Michael S. Tsirkin m...@redhat.com
On 06/18/2012 05:50 PM, Michael S. Tsirkin wrote:
+/* size alignment is implied but just to make it explicit. */
+static DEFINE_PER_CPU(unsigned long, kvm_apic_eoi) __aligned(2) =
+ KVM_PV_EOI_DISABLED;
You're actually breaking the alignment. ulong has 8 byte alignment
sometimes
On 06/18/2012 05:56 PM, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 05:20:01PM +0300, Avi Kivity wrote:
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
Document the new EOI MSR. Couldn't decide whether this change belongs
conceptually on guest or host side, so a separate patch.
Hi
Please send in any agenda items you are interested in covering.
Anthony suggested for last week:
- multithreading vhost (and general vhost improvements)
I suggest:
- status of migration: post-copy, IDL, XBRLE, huge memory, ...
Will send an email with an status before tomorrow call.
On Mon, Jun 18, 2012 at 06:03:42PM +0300, Avi Kivity wrote:
On 06/18/2012 05:56 PM, Michael S. Tsirkin wrote:
On Mon, Jun 18, 2012 at 05:20:01PM +0300, Avi Kivity wrote:
On 06/14/2012 04:53 PM, Michael S. Tsirkin wrote:
Document the new EOI MSR. Couldn't decide whether this change belongs
Thanks, Jan
I changed the URL in .git/config and 'git submodule update --init'
worked and populated the ./linux directory. Then, I ran
./configure
make sync
make
but I got a build error:
$ make
make -C /lib/modules/2.6.32-71.el6.x86_64/build M=`pwd` \
LINUXINCLUDE=-I`pwd`/include -Iinclude
On 2012-06-18 18:01, Juan Lorenzo del Castillo wrote:
Thanks, Jan
I changed the URL in .git/config and 'git submodule update --init' worked and
populated the ./linux directory. Then, I ran
./configure
make sync
make
but I got a build error:
$ make
make -C
On Mon, 2012-06-18 at 17:33 +0300, Avi Kivity wrote:
On 06/18/2012 05:27 PM, Alex Williamson wrote:
On Mon, 2012-06-18 at 13:14 +0300, Avi Kivity wrote:
On 06/18/2012 01:11 PM, Michael S. Tsirkin wrote:
(vhost,
msi-less ivshmem clone)?
I guess vhost can poll eventfd and
On Mon, Jun 18, 2012 at 06:01:59PM +0300, Avi Kivity wrote:
On 06/18/2012 05:50 PM, Michael S. Tsirkin wrote:
+/* size alignment is implied but just to make it explicit. */
+static DEFINE_PER_CPU(unsigned long, kvm_apic_eoi) __aligned(2) =
+KVM_PV_EOI_DISABLED;
On Mon, Jun 18, 2012 at 9:08 AM, Avi Kivity a...@redhat.com wrote:
On 06/15/2012 10:07 PM, Christoffer Dall wrote:
From: Marc Zyngier marc.zyng...@arm.com
In order to avoid compilation failure when KVM is not compiled in,
guard the mmu_notifier specific sections with both CONFIG_MMU_NOTIFIER
On Mon, Jun 18, 2012 at 9:12 AM, Avi Kivity a...@redhat.com wrote:
On 06/15/2012 10:07 PM, Christoffer Dall wrote:
Adds support in the identity mapping feature that allows KVM to setup
identity mapping for the Hyp mode with the AP[1] bit set as required by
the specification and also supports
On Thu, Jun 7, 2012 at 2:30 AM, Jan Kiszka jan.kis...@web.de wrote:
From: Jan Kiszka jan.kis...@siemens.com
According to
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/91388
the T310 does not properly support INTx masking as it fails to keep the
PCI_STATUS_INTERRUPT bit updated
On Thu, Jun 7, 2012 at 11:01 AM, Alex Williamson
alex.william...@redhat.com wrote:
Passes pci_intx_mask_supported test but continues to send interrupts
as discovered through VFIO-based device assignment.
http://www.spinics.net/lists/kvm/msg73738.html
Signed-off-by: Alex Williamson
On Thu, Jun 14, 2012 at 10:22:14AM +0900, Takuya Yoshikawa wrote:
On Wed, 13 Jun 2012 19:40:02 -0300
Marcelo Tosatti mtosa...@redhat.com wrote:
mmu_spte_update is handling several different cases. Please rewrite
it, add a comment on top of it (or spread comments on top of each
-Original Message-
From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On Behalf
Of Jimmy Crossley
Sent: Friday, June 08, 2012 17:29
To: kvm@vger.kernel.org
Subject: Garbled audio - Windows 7 64 bit guest on Debian
I am experiencing garbled sound on a Windows 7 64
On Thu, Jun 14, 2012 at 11:00:14AM +0800, Xiao Guangrong wrote:
On 06/14/2012 06:40 AM, Marcelo Tosatti wrote:
On Tue, May 29, 2012 at 02:50:32PM +0800, Xiao Guangrong wrote:
If the the present bit of page fault error code is set, it indicates
the shadow page is populated on all levels,
On Mon, Jun 18, 2012 at 12:50:10PM +0300, Avi Kivity wrote:
On 06/16/2012 05:11 AM, Marcelo Tosatti wrote:
Can you introduce a separate exit reason, say KVM_EXIT_READ_FAULT, with
information about the fault?
I think you mean WRITE_FAULT.
Yes.
But what's wrong with the normal mmio
On Sun, Jun 17, 2012 at 01:12:31PM -0700, Chegu Vinod wrote:
The -numa option to qemu is used to create [fake] numa nodes
and expose them to the guest OS instance.
There are a couple of issues with the -numa option:
a) Max VCPU's that can be specified for a guest while using
the qemu's
On Mon, Jun 18, 2012 at 9:32 AM, Avi Kivity a...@redhat.com wrote:
On 06/15/2012 10:08 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
Userspace can inject IRQs and FIQs through the KVM_IRQ_LINE VM ioctl.
This ioctl is used since the sematics are in fact two lines
Hello, guys.
On Mon, Jun 18, 2012 at 07:35:22PM +0930, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias He as...@redhat.com wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias He as...@redhat.com wrote:
This patch introduces
Hello, Asias.
On Mon, Jun 18, 2012 at 02:53:08PM +0800, Asias He wrote:
Split the mapping code in blk_rq_map_sg() to a helper
__blk_segment_map_sg(), so that other mapping function, e.g.
blk_bio_map_sg(), can share the code.
Cc: Jens Axboe ax...@kernel.dk
Cc: Tejun Heo t...@kernel.org
Cc:
On 6/18/2012 1:29 PM, Eduardo Habkost wrote:
On Sun, Jun 17, 2012 at 01:12:31PM -0700, Chegu Vinod wrote:
The -numa option to qemu is used to create [fake] numa nodes
and expose them to the guest OS instance.
There are a couple of issues with the -numa option:
a) Max VCPU's that can be
Am 17.06.2012 22:12, schrieb Chegu Vinod:
diff --git a/vl.c b/vl.c
index 204d85b..1906412 100644
--- a/vl.c
+++ b/vl.c
@@ -28,6 +28,7 @@
#include errno.h
#include sys/time.h
#include zlib.h
+#include sched.h
Did you check whether this and the macros you're using are available on
POSIX
On Mon, Jun 18, 2012 at 9:41 AM, Avi Kivity a...@redhat.com wrote:
On 06/15/2012 10:08 PM, Christoffer Dall wrote:
Provides complete world-switch implementation to switch to other guests
running in non-secure modes. Includes Hyp exception handlers that
capture necessary exception information
On 06/18/2012 04:05 PM, Andreas Färber wrote:
Am 17.06.2012 22:12, schrieb Chegu Vinod:
diff --git a/vl.c b/vl.c
index 204d85b..1906412 100644
--- a/vl.c
+++ b/vl.c
@@ -28,6 +28,7 @@
#include errno.h
#include sys/time.h
#include zlib.h
+#include sched.h
Did you check whether this
On 6/18/2012 3:11 PM, Eric Blake wrote:
On 06/18/2012 04:05 PM, Andreas Färber wrote:
Am 17.06.2012 22:12, schrieb Chegu Vinod:
diff --git a/vl.c b/vl.c
index 204d85b..1906412 100644
--- a/vl.c
+++ b/vl.c
@@ -28,6 +28,7 @@
#includeerrno.h
#includesys/time.h
#includezlib.h
On Mon, Jun 18, 2012 at 9:45 AM, Avi Kivity a...@redhat.com wrote:
On 06/15/2012 10:09 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific
On Mon, Jun 18, 2012 at 9:48 AM, Avi Kivity a...@redhat.com wrote:
On 06/15/2012 10:09 PM, Christoffer Dall wrote:
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
(physical address, read/write, length, register) and
On 06/19/2012 05:31 AM, Tejun Heo wrote:
Hello, Asias.
On Mon, Jun 18, 2012 at 02:53:08PM +0800, Asias He wrote:
Split the mapping code in blk_rq_map_sg() to a helper
__blk_segment_map_sg(), so that other mapping function, e.g.
blk_bio_map_sg(), can share the code.
Cc: Jens Axboe
On 06/19/2012 03:32 AM, Marcelo Tosatti wrote:
Ok, if you/Avi want to avoid an atomic read-and-update, please
introduce it later an as optimization patch.
Good to me, let's discus it in the separate patch. Thank you, Marcelo!
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On Mon, 18 Jun 2012 16:21:20 -0300
Marcelo Tosatti mtosa...@redhat.com wrote:
[not about this patch]
EPT accessed/dirty bits will be used for more things in the future.
Are there any rules for using these bits?
Same as other bits?
Do you mean hardware rules or KVM rules?
KVM
On 06/18/2012 06:11 PM, Avi Kivity wrote:
static int check_memory_region_flags(struct kvm_userspace_memory_region
*mem)
{
-if (mem-flags ~KVM_MEM_LOG_DIRTY_PAGES)
+if (mem-flags ~(KVM_MEM_LOG_DIRTY_PAGES | KVM_MEM_READONLY))
return -EINVAL;
Only x86 supports
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