On 27.03.2011 11:42, Avi Kivity wrote:
(...)
Okay, the fork came from the ,script=.
The issue with %rsi looks like a use-after-free, however
kvm_mmu_notifier_invalidate_range_start appears to be properly srcu
protected.
FYI, I saw this one as well:
http://www.virtall.com/files/temp/kvm.txt
Alex Williamson wrote:
On Sun, 2011-03-27 at 23:22 +0400, Konstantin Khlebnikov wrote:
Move assigned devices irq reroute hook from generic pci code to piix emulation.
Actually without this patch this hook had never worked, because pci.c not
include config.h and CONFIG_KVM_DEVICE_ASSIGNMENT
On 03/28/2011 08:24 AM, Tomasz Chmielewski wrote:
On 27.03.2011 11:42, Avi Kivity wrote:
(...)
Okay, the fork came from the ,script=.
The issue with %rsi looks like a use-after-free, however
kvm_mmu_notifier_invalidate_range_start appears to be properly srcu
protected.
FYI, I saw this one
On 03/28/2011 02:53 AM, Wei Xu wrote:
+++ linux/contents/include/linux/kvm.h 2011-03-21 09:16:39.0 -0700
@@ -152,7 +152,7 @@
/* KVM_EXIT_MMIO */
struct {
__u64 phys_addr;
- __u8 data[8];
+ __u8 data[16];
__u32 len;
__u8 is_write;
} mmio;
This breaks the
On 03/28/2011 02:54 AM, Wei Xu wrote:
Avi,
Are you sure there is a sse-mmio branch? I could not find it anywhere...
http://git.kernel.org/?p=virt/kvm/kvm.git;a=shortlog;h=refs/heads/sse-mmio
Badly out of date, and somewhat broken. Rebasing and fixing now.
--
error compiling committee.c:
On Sun, Mar 27, 2011 at 02:56:56PM +0200, Gleb Natapov wrote:
On Fri, Mar 25, 2011 at 10:29:04AM +0100, Joerg Roedel wrote:
@@ -259,6 +267,18 @@ struct x86_emulate_ctxt {
#define X86EMUL_MODE_PROT32 4/* 32-bit protected mode. */
#define X86EMUL_MODE_PROT64 8/* 64-bit (long)
From: Avi Kivity a...@redhat.com
Add intercept codes for instructions defined by SVM as
interceptable.
Signed-off-by: Avi Kivity a...@redhat.com
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h | 35 +++
This patch prevents the changed CPU state to be written back
when the emulator detected that the instruction was
intercepted by the guest.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h |1 +
arch/x86/kvm/emulate.c |3 +++
This patch adds a callback into kvm_x86_ops so that svm and
vmx code can do intercept checks on emulated instructions.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h | 22 --
arch/x86/include/asm/kvm_host.h|7 +++
This patch removes all the old code which handled the nested
selective cr0 write intercepts. This code was only in place
as a work-around until the instruction emulator is capable
of doing the same. This is the case with this patch-set and
so the code can be removed.
Signed-off-by: Joerg Roedel
This patch adds the intercept checks for instruction
accessing the debug registers.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h |2 ++
arch/x86/kvm/emulate.c |4 ++--
arch/x86/kvm/svm.c |6 ++
3 files
This patch adds all necessary intercept checks for
instructions that access the crX registers.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h |3 +
arch/x86/kvm/emulate.c |8 ++-
arch/x86/kvm/svm.c | 81
This patch adds the necessary code changes in the
instruction emulator and the extensions to svm.c to
implement intercept checks for the svm instructions.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/emulate.c | 23 ++-
arch/x86/kvm/svm.c |8
From: Avi Kivity a...@redhat.com
When running in guest mode, certain instructions can be intercepted by
hardware. This also holds for nested guests running on emulated
virtualization hardware, in particular instructions emulated by kvm
itself.
This patch adds a framework for intercepting
This patch add intercept checks into the KVM instruction
emulator to check for the 8 instructions that access the
descriptor table addresses.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/emulate.c | 13 +++--
arch/x86/kvm/svm.c | 13 +
2 files
Hi,
this is version 3 of the instruction intercept check framework and svm
code. This version addresses the review comments of Avi and Gleb. There
were no other changes beside that since v2.
Regards,
Joerg
Diffstat:
arch/x86/include/asm/kvm_emulate.h | 85
This patch adds code to check for IOIO intercepts on
instructions decoded by the KVM instruction emulator.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h |4
arch/x86/kvm/emulate.c | 10 ++
arch/x86/kvm/svm.c
This patch add intercept checks for emulated one-byte
instructions to the KVM instruction emulation path.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/emulate.c |4 ++--
arch/x86/kvm/svm.c | 14 ++
2 files changed, 16 insertions(+), 2 deletions(-)
diff
This patch adds intercepts checks for the remaining twobyte
instructions to the KVM instruction emulator.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_emulate.h |2 ++
arch/x86/kvm/emulate.c |8
arch/x86/kvm/svm.c |
This patch implements the emulator intercept checks for the
RDTSCP, MONITOR, and MWAIT instructions.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/emulate.c | 15 +--
arch/x86/kvm/svm.c |3 +++
2 files changed, 16 insertions(+), 2 deletions(-)
diff
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch adds the necessary code changes in the
instruction emulator and the extensions to svm.c to
implement intercept checks for the svm instructions.
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 485a09f..9b22f5f 100644
---
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch implements the emulator intercept checks for the
RDTSCP, MONITOR, and MWAIT instructions.
Signed-off-by: Joerg Roedeljoerg.roe...@amd.com
---
arch/x86/kvm/emulate.c | 15 +--
arch/x86/kvm/svm.c |3 +++
2 files
On Mon, Mar 28, 2011 at 08:08:21AM -0400, Avi Kivity wrote:
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch adds the necessary code changes in the
instruction emulator and the extensions to svm.c to
implement intercept checks for the svm instructions.
diff --git
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch adds code to check for IOIO intercepts on
instructions decoded by the KVM instruction emulator.
@@ -3926,6 +3926,10 @@ static struct __x86_intercept {
[x86_intercept_iret]= PRE_EX(SVM_EXIT_IRET),
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch adds intercepts checks for the remaining twobyte
instructions to the KVM instruction emulator.
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index e0eed4c..4a5881d 100644
--- a/arch/x86/kvm/emulate.c
+++
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch add intercept checks into the KVM instruction
emulator to check for the 8 instructions that access the
descriptor table addresses.
+static struct opcode group6[] = {
+ DI(ModRM,sldt),
+ DI(ModRM,str),
+
On 03/25/2011 10:26 PM, Marcin M. Jessa wrote:
Hi.
Over the last several days I've been reading, asking questions,
searching the Internet to find a viable HA stack for Ubuntu with KVM
virtualization and shared iSCSI storage. And I'm nearly as confused as
when I started.
Basically I'm
On Mon, Mar 28, 2011 at 08:35:54AM -0400, Avi Kivity wrote:
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch add intercept checks into the KVM instruction
emulator to check for the 8 instructions that access the
descriptor table addresses.
+static struct opcode group6[] = {
+
On 03/28/2011 03:56 PM, Roedel, Joerg wrote:
On Mon, Mar 28, 2011 at 08:35:54AM -0400, Avi Kivity wrote:
On 03/28/2011 12:46 PM, Joerg Roedel wrote:
This patch add intercept checks into the KVM instruction
emulator to check for the 8 instructions that access the
descriptor table
Signed-off-by: Gleb Natapov g...@redhat.com
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 14c5ad5..96c02a6 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2168,7 +2168,7 @@ int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
- Original Message -
- Original Message -
On 03/25/2011 10:26 PM, Marcin M. Jessa wrote:
Hi.
Over the last several days I've been reading, asking questions,
searching the Internet to find a viable HA stack for Ubuntu with
KVM
virtualization and shared iSCSI
Avi,
That's why I also attached the mmx-qemu.patch for user space...
Wei
On 3/28/11 2:23 AM, Avi Kivity a...@redhat.com wrote:
On 03/28/2011 02:53 AM, Wei Xu wrote:
+++ linux/contents/include/linux/kvm.h 2011-03-21 09:16:39.0 -0700
@@ -152,7 +152,7 @@
/* KVM_EXIT_MMIO */
From: Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp
This stops CMP r/m, reg to write back the data into memory.
Pointed out by Avi.
Signed-off-by: Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp
---
arch/x86/kvm/emulate.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git
On 03/28/2011 06:31 PM, Wei Xu wrote:
Avi,
That's why I also attached the mmx-qemu.patch for user space...
We can't ask users to rebuild their qemus when they upgrade a kernel.
I pushed a new version as tag sse-mmio-v2; unfortunately there's quite a
bit of work remaining.
--
error
From: Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp
Recently, emulate_push family functions started to call writeback()
during their emulation. This clearly shows that the usual writeback()
which is done at the end of x86_emulate_insn() cannot cover all cases.
Furthermore, suppressing
Avi,
Thanks for quick response! Let me know when it's done.
Wei
On 3/28/11 9:33 AM, Avi Kivity a...@redhat.com wrote:
On 03/28/2011 06:31 PM, Wei Xu wrote:
Avi,
That's why I also attached the mmx-qemu.patch for user space...
We can't ask users to rebuild their qemus when they
Hello everyone,
On Mon, Mar 28, 2011 at 11:19:51AM +0200, Avi Kivity wrote:
On 03/28/2011 08:24 AM, Tomasz Chmielewski wrote:
On 27.03.2011 11:42, Avi Kivity wrote:
(...)
Okay, the fork came from the ,script=.
The issue with %rsi looks like a use-after-free, however
On 03/28/2011 07:54 PM, Andrea Arcangeli wrote:
BTW, is it genuine that a protection fault is generated instead of a page
fault while dereferencing address 0x8805d6b087f8? I would normally
except a page fault from a memory dereference that doesn't alter
processor state/segments.
Yes. Bits
On Mon, Mar 28, 2011 at 08:02:47PM +0200, Avi Kivity wrote:
On 03/28/2011 07:54 PM, Andrea Arcangeli wrote:
BTW, is it genuine that a protection fault is generated instead of a page
fault while dereferencing address 0x8805d6b087f8? I would normally
except a page fault from a memory
On 28.03.2011 22:04, Andrea Arcangeli wrote:
Tomasz, how easily can you reproduce?
Well, this server runs 10 VMs or so, and it happens after 1-2 days of
uptime.
I reverted now to a 2.6.35.x, as it had enough downtime with 2.6.38
already ;) so I'd rather not experiment anymore for some
On 3/28/11 2:46 PM, Avi Kivity wrote:
On 03/25/2011 10:26 PM, Marcin M. Jessa wrote:
[...]
One LUN per image allows you to implement failover, LVM doesn't (but
cluster-LVM does). I recommend using one LUN per image; it's much simpler.
Some people say Use one LUN, it's easier and use CLVM.
On 3/28/11 6:21 PM, David Martin wrote:
[...]
CLVM was more complicated initially but is pretty once we got through
that. Having to hack around in the SAN manager and then going to the
hosts to mess with the multipath configs etc gets old fast. However if
your setup is pretty static then I
- Original Message -
On 3/28/11 2:46 PM, Avi Kivity wrote:
On 03/25/2011 10:26 PM, Marcin M. Jessa wrote:
[...]
One LUN per image allows you to implement failover, LVM doesn't (but
cluster-LVM does). I recommend using one LUN per image; it's much
simpler.
Some people say
On Thu, Mar 24, 2011 at 03:51:36PM -0700, Josh Durgin wrote:
You have sent a malformed patch. Please send patches that follow the
guidelines at http://wiki.qemu.org/Contribute/SubmitAPatch and test that
your mail client is not line wrapping or mangling whitespace.
Stefan
--
To unsubscribe from
librbd stacks on top of librados to provide access
to rbd images.
Using librbd simplifies the qemu code, and allows
qemu to use new versions of the rbd format
with few (if any) changes.
Signed-off-by: Josh Durgin josh.dur...@dreamhost.com
Signed-off-by: Yehuda Sadeh yeh...@hq.newdream.net
---
The new format is rbd:pool/image[@snapshot][:option1=value1[:option2=value2...]]
Each option is used to configure rados, and may be any Ceph option, or conf.
The conf option specifies a Ceph configuration file to read.
This allows rbd volumes from more than one Ceph cluster to be used by
On 03/28/2011 02:08 PM, Stefan Hajnoczi wrote:
You have sent a malformed patch. Please send patches that follow the
guidelines at http://wiki.qemu.org/Contribute/SubmitAPatch and test that
your mail client is not line wrapping or mangling whitespace.
Sorry about that. I've fixed the style
It is possible to create CPU-less NUMA nodes, node amount shouldn't be
limited by amount of CPUs.
Signed-off-by: Sasha Levin levinsasha...@gmail.com
---
vl.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/vl.c b/vl.c
index 8bcf2ae..8cc1aa8 100644
--- a/vl.c
+++
From: Jiri Zupka jzu...@redhat.com
This patch adds migration test (tmigrate). It also daemonize the
virtio_console_guest.py script, which is necessary for the migration test.
[virtio_console_guest.py]
It is splited to 2 parts, first one is client and second one is daemon.
* Daemon part is
On Mon, 2011-03-28 at 22:20 -0300, Lucas Meneghel Rodrigues wrote:
From: Jiri Zupka jzu...@redhat.com
This patch adds migration test (tmigrate). It also daemonize the
virtio_console_guest.py script, which is necessary for the migration test.
[virtio_console_guest.py]
It is splited to 2
On Mon, Mar 28, 2011 at 3:31 PM, Marcin M. Jessa li...@yazzy.org wrote:
How is OCFS2 compared to CLVM?
different layers, can't compare.
CLVM (aka cLVM) is the cluster version of LVM, the volume manager.
the addition of a userspace lock manager lets you do all volume
management (create/delete
Return the actual host SVR. On e500, qemu currently pretends in the device
tree to be an mpc8544 regardless of what the host is, but that's something
that ought to be changed.
Signed-off-by: Scott Wood scottw...@freescale.com
---
arch/powerpc/kvm/emulate.c |2 ++
1 files changed, 2
From: yu liu yu@freescale.com
giveup_spe() saves the SPE state which is protected by MSR[SPE].
However, modifying SPEFSCR does not trap when MSR[SPE]=0.
And since SPEFSCR is already saved/restored in _switch(),
not all the callers want to save SPEFSCR again.
Thus, saving SPEFSCR should not
From: yu liu yu@freescale.com
This patch provide a lazy way to do SPE switch.
The SPE save/restore will be done only if it's needed.
Linux already switches SPEFSCR on context switch (non-lazily), so the
only remaining bit is to save it between qemu and the guest.
Signed-off-by: Liu Yu
The exit type setting for mfspr/mtspr is moved from 44x to toplevel SPR
emulation. This enables it on e500, and makes sure that all SPRs
are covered.
Exit accounting for tlbwe and tlbsx is added to e500.
Signed-off-by: Stuart Yoder stuart.yo...@freescale.com
Signed-off-by: Scott Wood
From: Stuart Yoder stuart.yo...@freescale.com
Convert to microseconds when displaying
(with fix from Bharat Bhushan bharat.bhus...@freescale.com).
This reduces rounding error with large quantities of short exits.
Signed-off-by: Stuart Yoder stuart.yo...@freescale.com
Signed-off-by: Scott Wood
From: yu liu yu@freescale.com
We need to save/restore SPE environment on e500 core.
Wrap __kvmppc_vcpu_run() so that we can put the SPE code in
e500.c.
Signed-off-by: Liu Yu yu@freescale.com
Signed-off-by: Scott Wood scottw...@freescale.com
---
v2: added kvm-ppc (sorry for the resend)
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