Hi Gleb and Paolo,
What about organizing vmx_run() as follows:
static int vmx_run()
{
u32 eax;
bool ret;
vmcs_write(HOST_RSP, get_rsp());
ret = vmlaunch();
while (!ret) {
asm volatile(
vmx_return:\n\t
SAVE_GPR
);
eax =
Il 24/07/2013 08:11, Arthur Chunqi Li ha scritto:
static int vmx_run()
{
u32 eax;
bool ret;
vmcs_write(HOST_RSP, get_rsp());
ret = vmlaunch();
The compiler can still change rsp between here...
while (!ret) {
asm volatile(
vmx_return:\n\t
...
On Wed, Jul 24, 2013 at 2:40 PM, Paolo Bonzini pbonz...@redhat.com wrote:
Il 24/07/2013 08:11, Arthur Chunqi Li ha scritto:
static int vmx_run()
{
u32 eax;
bool ret;
vmcs_write(HOST_RSP, get_rsp());
ret = vmlaunch();
The compiler can still change rsp between here...
Il 24/07/2013 08:46, Arthur Chunqi Li ha scritto:
On Wed, Jul 24, 2013 at 2:40 PM, Paolo Bonzini pbonz...@redhat.com wrote:
Il 24/07/2013 08:11, Arthur Chunqi Li ha scritto:
static int vmx_run()
{
u32 eax;
bool ret;
vmcs_write(HOST_RSP, get_rsp());
ret = vmlaunch();
The
On 07/24/2013 12:48 PM, H. Peter Anvin wrote:
On 07/23/2013 09:37 PM, Jason Wang wrote:
On 07/23/2013 10:48 PM, H. Peter Anvin wrote:
On 07/23/2013 06:55 AM, KY Srinivasan wrote:
This strategy of hypervisor detection based on some detection order IMHO
is not
a robust detection strategy. The
Il 24/07/2013 08:54, Jason Wang ha scritto:
On 07/24/2013 12:48 PM, H. Peter Anvin wrote:
On 07/23/2013 09:37 PM, Jason Wang wrote:
On 07/23/2013 10:48 PM, H. Peter Anvin wrote:
On 07/23/2013 06:55 AM, KY Srinivasan wrote:
This strategy of hypervisor detection based on some detection order
On Mon, Jul 22, 2013 at 02:49:50PM -0400, CERT(R) Coordination Center wrote:
My name is Adam Rauf and I work for the CERT Coordination Center. We
have a report that may affect KVM/QEMU. How can we securely send it over to
you? Thanks so much!
Paolo, Gleb, Anthony: Is this already
On Tue, 2013-07-23 at 15:31 -0600, Alex Williamson wrote:
On Tue, 2013-07-23 at 23:11 +0200, Massimiliano Adamo wrote:
All,
this is a bug with KVM, impacting (at least) all mainstream kernels that
I tried so far: 3.2, 3.3, 3.4, 3.5, 3.8, 3.10 and 3.11
This is the link of the
On 24.07.2013, at 04:26, “tiejun.chen” wrote:
On 07/18/2013 06:27 PM, Alexander Graf wrote:
On 18.07.2013, at 12:19, “tiejun.chen” wrote:
On 07/18/2013 06:12 PM, Alexander Graf wrote:
On 18.07.2013, at 12:08, “tiejun.chen” wrote:
On 07/18/2013 05:48 PM, Alexander Graf wrote:
On
So as what Gleb said, what about the following codes:
static int vmx_run2()
{
u32 eax;
bool ret;
asm volatile(
mov %%rsp, %%rsi\n\t
mov %2, %%edi\n\t
call vmcs_write\n\t
vmlaunch\n\t
setbe %0\n\t
jne 4f\n\t
vmx_return:\n\t
On 2013-07-24 10:48, Arthur Chunqi Li wrote:
So as what Gleb said, what about the following codes:
static int vmx_run2()
{
u32 eax;
bool ret;
asm volatile(
mov %%rsp, %%rsi\n\t
mov %2, %%edi\n\t
call vmcs_write\n\t
vmlaunch\n\t
Just like
On Wed, 2013-07-24 at 10:04 +0200, Massimiliano Adamo wrote:
On Tue, 2013-07-23 at 15:31 -0600, Alex Williamson wrote:
On Tue, 2013-07-23 at 23:11 +0200, Massimiliano Adamo wrote:
All,
this is a bug with KVM, impacting (at least) all mainstream kernels that
I tried so far:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, July 24, 2013 1:55 PM
To: “tiejun.chen”
Cc: Bhushan Bharat-R65777; kvm-...@vger.kernel.org; kvm@vger.kernel.org list;
Wood Scott-B07421; Gleb Natapov; Paolo Bonzini
Subject: Re: [PATCH 2/2] kvm:
Il 24/07/2013 10:48, Arthur Chunqi Li ha scritto:
So as what Gleb said, what about the following codes:
static int vmx_run2()
{
u32 eax;
bool ret;
asm volatile(
mov %%rsp, %%rsi\n\t
mov %2, %%edi\n\t
call vmcs_write\n\t
vmlaunch\n\t
* Gleb Natapov g...@redhat.com [2013-07-23 18:07:48]:
On Mon, Jul 22, 2013 at 11:50:16AM +0530, Raghavendra K T wrote:
+static void kvm_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
+{
+ struct kvm_lock_waiting *w;
+ int cpu;
+ u64 start;
+ unsigned long flags;
On 24.07.2013, at 11:11, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, July 24, 2013 1:55 PM
To: “tiejun.chen”
Cc: Bhushan Bharat-R65777; kvm-...@vger.kernel.org; kvm@vger.kernel.org list;
Wood Scott-B07421; Gleb
On Wed, Jul 24, 2013 at 11:21:11AM +0200, Alexander Graf wrote:
Are not we going to use page_is_ram() from e500_shadow_mas2_attrib() as
Scott commented?
rWhy aren't we using page_is_ram() in kvm_is_mmio_pfn()?
Because it is much slower and, IIRC, actually used to build pfn map that
On 07/23/2013 08:37 PM, Gleb Natapov wrote:
On Mon, Jul 22, 2013 at 11:50:16AM +0530, Raghavendra K T wrote:
+static void kvm_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
[...]
+
+ /*
+* halt until it's our turn and kicked. Note that we do safe halt
+* for
On 24.07.2013, at 11:35, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 11:21:11AM +0200, Alexander Graf wrote:
Are not we going to use page_is_ram() from e500_shadow_mas2_attrib() as
Scott commented?
rWhy aren't we using page_is_ram() in kvm_is_mmio_pfn()?
Because it is much slower
So what about this one. I merged all the exit reason to ret and
remove the flag detection after vmlaunch/vmresume (because I think
this detection is useless). Currently we support only one guest, so
variant launched is located in vmx_run(). If we want to support
multiple guest, we could move it to
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1580dd4..5e8635b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -102,6 +102,10
On 2013-07-24 11:56, Arthur Chunqi Li wrote:
So what about this one. I merged all the exit reason to ret and
remove the flag detection after vmlaunch/vmresume (because I think
this detection is useless). Currently we support only one guest, so
variant launched is located in vmx_run(). If we
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1580dd4..5e8635b 100644
--- a/virt/kvm/kvm_main.c
On Wed, Jul 24, 2013 at 6:03 PM, Jan Kiszka jan.kis...@web.de wrote:
On 2013-07-24 11:56, Arthur Chunqi Li wrote:
So what about this one. I merged all the exit reason to ret and
remove the flag detection after vmlaunch/vmresume (because I think
this detection is useless). Currently we support
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
diff --git a/virt/kvm/kvm_main.c
On 2013-07-24 12:16, Arthur Chunqi Li wrote:
On Wed, Jul 24, 2013 at 6:03 PM, Jan Kiszka jan.kis...@web.de wrote:
On 2013-07-24 11:56, Arthur Chunqi Li wrote:
So what about this one. I merged all the exit reason to ret and
remove the flag detection after vmlaunch/vmresume (because I think
On 24.07.2013, at 12:19, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
On Wed, Jul 24, 2013 at 12:25:18PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:19, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense
On Wed, Jul 24, 2013 at 03:15:50PM +0530, Raghavendra K T wrote:
On 07/23/2013 08:37 PM, Gleb Natapov wrote:
On Mon, Jul 22, 2013 at 11:50:16AM +0530, Raghavendra K T wrote:
+static void kvm_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
[...]
+
+ /*
+* halt until it's our
And what about this version:
static int vmx_run()
{
u32 ret = 0;
asm volatile(
mov %%rsp, %%rsi\n\t
mov %2, %%edi\n\t
call vmcs_write\n\t
0:
LOAD_GPR_C
cmpl $0, %1\n\t
jne 1f\n\t
vmlaunch;seta %1\n\t
/* vmlaunch
On 2013-07-24 13:20, Arthur Chunqi Li wrote:
And what about this version:
static int vmx_run()
{
u32 ret = 0;
asm volatile(
mov %%rsp, %%rsi\n\t
mov %2, %%edi\n\t
call vmcs_write\n\t
0:
LOAD_GPR_C
cmpl $0, %1\n\t
On 07/24/2013 04:09 PM, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 03:15:50PM +0530, Raghavendra K T wrote:
On 07/23/2013 08:37 PM, Gleb Natapov wrote:
On Mon, Jul 22, 2013 at 11:50:16AM +0530, Raghavendra K T wrote:
+static void kvm_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
On Wed, Jul 24, 2013 at 05:30:20PM +0530, Raghavendra K T wrote:
On 07/24/2013 04:09 PM, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 03:15:50PM +0530, Raghavendra K T wrote:
On 07/23/2013 08:37 PM, Gleb Natapov wrote:
On Mon, Jul 22, 2013 at 11:50:16AM +0530, Raghavendra K T wrote:
+static
CERT(R) Coordination Center c...@cert.org writes:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Greetings,
My name is Adam Rauf and I work for the CERT Coordination Center. We
have a report that may affect KVM/QEMU. How can we securely send it over to
you? Thanks so much!
For
On 07/24/2013 05:36 PM, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 05:30:20PM +0530, Raghavendra K T wrote:
On 07/24/2013 04:09 PM, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 03:15:50PM +0530, Raghavendra K T wrote:
On 07/23/2013 08:37 PM, Gleb Natapov wrote:
On Mon, Jul 22, 2013 at
I will be hosting a key signing party at this year's KVM Forum.
http://wiki.qemu.org/KeySigningParty2013
Starting for the 1.7 release (begins in December), I will only accepted
signed pull requests so please try to attend this event or make
alternative arrangements to have someone sign your key
On Wed, 2013-07-24 at 11:09 +0200, Massimiliano Adamo wrote:
On Wed, 2013-07-24 at 10:04 +0200, Massimiliano Adamo wrote:
On Tue, 2013-07-23 at 15:31 -0600, Alex Williamson wrote:
On Tue, 2013-07-23 at 23:11 +0200, Massimiliano Adamo wrote:
All,
this is a bug with KVM,
-Original Message-
From: Paolo Bonzini [mailto:paolo.bonz...@gmail.com] On Behalf Of Paolo
Bonzini
Sent: Wednesday, July 24, 2013 3:07 AM
To: Jason Wang
Cc: H. Peter Anvin; KY Srinivasan; t...@linutronix.de; mi...@redhat.com;
x...@kernel.org; g...@redhat.com; kvm@vger.kernel.org;
This is a pretty massive memory leak, anyone @Intel care? Thanks,
Alex
On Sat, 2013-06-15 at 10:27 -0600, Alex Williamson wrote:
At best the current code only seems to free the leaf pagetables and
the root. If you're unlucky enough to have a large gap (like any
QEMU guest with more than 3G
On Tue, Jul 23, 2013 at 10:06 AM, Bjorn Helgaas bhelg...@google.com wrote:
On Tue, Jul 16, 2013 at 8:21 PM, Myron Stowe myron.st...@gmail.com wrote:
Linux Plumbers has approved an ACPI/PM, PCI microconference. The
overview page is here:
http://wiki.linuxplumbersconf.org/2013:pci_subsystem
I don't see how this solves the A emulates B, B emulates A problem?
KY Srinivasan k...@microsoft.com wrote:
-Original Message-
From: Paolo Bonzini [mailto:paolo.bonz...@gmail.com] On Behalf Of
Paolo
Bonzini
Sent: Wednesday, July 24, 2013 3:07 AM
To: Jason Wang
Cc: H. Peter Anvin;
-Original Message-
From: H. Peter Anvin [mailto:h...@zytor.com]
Sent: Wednesday, July 24, 2013 11:14 AM
To: KY Srinivasan; Paolo Bonzini; Jason Wang
Cc: t...@linutronix.de; mi...@redhat.com; x...@kernel.org; g...@redhat.com;
kvm@vger.kernel.org; linux-ker...@vger.kernel.org
https://bugzilla.kernel.org/show_bug.cgi?id=60620
Bug ID: 60620
Summary: guest loses frequently (multiple times per day!)
connectivity to network device
Product: Virtualization
Version: unspecified
Kernel Version: 3.8, 3.9, 3.10
https://bugzilla.kernel.org/show_bug.cgi?id=60620
Folkert van Heusden folk...@vanheusden.com changed:
What|Removed |Added
Severity|high|normal
--
On 07/24/2013 04:39:59 AM, Alexander Graf wrote:
On 24.07.2013, at 11:35, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 11:21:11AM +0200, Alexander Graf wrote:
Are not we going to use page_is_ram() from
e500_shadow_mas2_attrib() as Scott commented?
rWhy aren't we using page_is_ram() in
What I'm suggesting is exactly that except that the native hypervisor is later
in CPUID space.
KY Srinivasan k...@microsoft.com wrote:
-Original Message-
From: H. Peter Anvin [mailto:h...@zytor.com]
Sent: Wednesday, July 24, 2013 11:14 AM
To: KY Srinivasan; Paolo Bonzini; Jason
On Tue, 23 Jul 2013 12:22:59 +1000 Alexey Kardashevskiy a...@ozlabs.ru wrote:
Ping, anyone, please?
ew, you top-posted.
Ben needs ack from any of MM people before proceeding with this patch. Thanks!
For what? The three lines of comment in page-flags.h? ack :)
Manipulating page-_count
On Wed, 2013-07-24 at 15:43 -0700, Andrew Morton wrote:
For what? The three lines of comment in page-flags.h? ack :)
Manipulating page-_count directly is considered poor form. Don't
blame us if we break your code ;)
Actually, the manipulation in realmode_get_page() duplicates the
Hi!
On Wed, Jul 24, 2013 at 01:30:12PM +0300, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 12:25:18PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:19, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov
Reminder, there's one week left to submit proposals for the
virtualization micro-conference at LPC. Please see below for details
and note the update to submit proposals through the Linux Plumbers
website:
http://www.linuxplumbersconf.org/2013/ocw/events/LPC2013/proposals/new
Thanks,
Alex
On
This is the first version of VMX nested environment. It contains the
basic VMX instructions test cases, including VMXON/VMXOFF/VMXPTRLD/
VMXPTRST/VMCLEAR/VMLAUNCH/VMRESUME/VMCALL. This patchalso tests the
basic execution routine in VMX nested environment andlet the VM print
Hello World to inform
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, July 24, 2013 1:55 PM
To: “tiejun.chen”
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org; k...@vger.kernel.org list;
Wood Scott-B07421; Gleb Natapov; Paolo Bonzini
Subject: Re: [PATCH 2/2] kvm:
On 24.07.2013, at 11:11, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, July 24, 2013 1:55 PM
To: “tiejun.chen”
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org; k...@vger.kernel.org
list;
Wood Scott-B07421; Gleb
On 24.07.2013, at 11:35, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 11:21:11AM +0200, Alexander Graf wrote:
Are not we going to use page_is_ram() from e500_shadow_mas2_attrib() as
Scott commented?
rWhy aren't we using page_is_ram() in kvm_is_mmio_pfn()?
Because it is much slower
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1580dd4..5e8635b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -102,6 +102,10
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1580dd4..5e8635b 100644
--- a/virt/kvm/kvm_main.c
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
diff --git a/virt/kvm/kvm_main.c
On 24.07.2013, at 12:19, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense :)
On Wed, Jul 24, 2013 at 10:25:20AM +0200, Alexander Graf wrote:
On Wed, Jul 24, 2013 at 12:25:18PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:19, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 12:09:42PM +0200, Alexander Graf wrote:
On 24.07.2013, at 12:01, Gleb Natapov wrote:
Copying Andrea for him to verify that I am not talking nonsense
On 07/24/2013 04:39:59 AM, Alexander Graf wrote:
On 24.07.2013, at 11:35, Gleb Natapov wrote:
On Wed, Jul 24, 2013 at 11:21:11AM +0200, Alexander Graf wrote:
Are not we going to use page_is_ram() from
e500_shadow_mas2_attrib() as Scott commented?
rWhy aren't we using page_is_ram() in
On Tue, 23 Jul 2013 12:22:59 +1000 Alexey Kardashevskiy a...@ozlabs.ru wrote:
Ping, anyone, please?
ew, you top-posted.
Ben needs ack from any of MM people before proceeding with this patch. Thanks!
For what? The three lines of comment in page-flags.h? ack :)
Manipulating page-_count
On Wed, 2013-07-24 at 15:43 -0700, Andrew Morton wrote:
For what? The three lines of comment in page-flags.h? ack :)
Manipulating page-_count directly is considered poor form. Don't
blame us if we break your code ;)
Actually, the manipulation in realmode_get_page() duplicates the
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