On Mon, May 05, 2014 at 08:23:43PM -0300, Marcelo Tosatti wrote:
Hi Alexander,
On Mon, May 05, 2014 at 03:51:22PM +0200, Alexander Graf wrote:
When we migrate we ask the kernel about its current belief on what the guest
time would be.
KVM_GET_CLOCK which returns the time in struct
Marcin,
Can you provide detailed instructions on how to reproduce the problem?
Thanks
On Mon, May 05, 2014 at 08:27:10PM -0300, Marcelo Tosatti wrote:
On Mon, May 05, 2014 at 08:26:04PM +0200, Marcin Gibuła wrote:
is it possible to have kvmclock jumping forward?
Because I've
Check vmsd for unmigratable field, allowing migratibility status
to be modified after vmstate_register.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/savevm.c b/savevm.c
index da8aa24..c578e42 100644
--- a/savevm.c
+++ b/savevm.c
@@ -232,7 +232,6 @@ typedef struct
Invariant TSC is a property of TSC, no additional
support code necessary.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index f47a104..333b88d 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -495,6 +495,13 @@ static
On Thu, Apr 24, 2014 at 04:21:59PM -0300, Eduardo Habkost wrote:
On Wed, Apr 23, 2014 at 06:04:45PM -0300, Marcelo Tosatti wrote:
Invariant TSC documentation mentions that invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states.
This is not the case if migration
Invariant TSC is a property of TSC, no additional
support code necessary.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index f47a104..4f076d7 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -495,6 +495,11 @@ static
Check vmsd for unmigratable field, allowing migratibility status
to be modified after vmstate_register.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/savevm.c b/savevm.c
index 22123be..61a25c0 100644
--- a/savevm.c
+++ b/savevm.c
@@ -452,7 +452,7 @@ bool
On Fri, Apr 25, 2014 at 05:38:08PM -0300, Eduardo Habkost wrote:
Have you tested if your patch actually blocks savevm?
Yes, with -smp 2.
Can you please include the savevm.c patch in your queue?
TIA.
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to
On Thu, Apr 17, 2014 at 05:06:11PM +0800, Xiao Guangrong wrote:
Since Marcelo has agreed the comments improving in the off-line mail, i
consider this is his Ack. :) Please let me know If i misunderstood it.
This patchset is splited from my previous patchset:
[PATCH v3 00/15] KVM: MMU:
v2:
- filter for TCG at cpu realizefn.
- allow invariant tsc by default with -cpu host.
- fix initialization with multiple vcpus.
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at
the overhead associated with a ring
transition or access to a platform resource.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: qemu-invariant-tsc/target-i386/cpu.c
===
--- qemu-invariant-tsc.orig/target-i386/cpu.c
+++ qemu-invariant
by default.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: qemu-invariant-tsc/target-i386/kvm.c
===
--- qemu-invariant-tsc.orig/target-i386/kvm.c
+++ qemu-invariant-tsc/target-i386/kvm.c
@@ -33,6 +33,8 @@
#include exec
On Wed, Apr 23, 2014 at 08:52:03AM +0300, Michael S. Tsirkin wrote:
HV-APIC-ASSIST MSR is in the list of saved MSRs ...
Restoration of MSR_KVM_PV_EOI_EN is required for migration under
when PVEOI enabled ?
That's what I don't get.
Since after this patch, set of
On Tue, Apr 22, 2014 at 09:04:45AM +0300, Nadav Amit wrote:
Gleb,
On 4/20/14, 12:26 PM, Gleb Natapov wrote:
On Fri, Apr 18, 2014 at 07:11:33AM +0300, Nadav Amit wrote:
When using address-size override prefix with string instructions in
long-mode,
ESI/EDI/ECX are zero extended if they are
On Wed, Apr 23, 2014 at 04:58:32PM -0300, Marcelo Tosatti wrote:
On Tue, Apr 22, 2014 at 09:04:45AM +0300, Nadav Amit wrote:
Gleb,
On 4/20/14, 12:26 PM, Gleb Natapov wrote:
On Fri, Apr 18, 2014 at 07:11:33AM +0300, Nadav Amit wrote:
When using address-size override prefix with string
On Fri, Apr 18, 2014 at 02:33:06AM +0300, Nadav Amit wrote:
This series of patches fix various scenarios in which KVM behavior does not
follow x86 specifications. Each patch actually deals with a separate bug.
These bugs can cause the guest to get stuck (i.e., make no progress),
encounter
Invariant TSC documentation mentions that invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states.
This is not the case if migration to a host with different TSC frequency
is allowed, or if savevm is performed. So block migration/savevm.
Signed-off-by: Marcelo Tosatti mtosa
see patches for details.
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
by default.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: qemu-invariant-tsc/target-i386/kvm.c
===
--- qemu-invariant-tsc.orig/target-i386/kvm.c
+++ qemu-invariant-tsc/target-i386/kvm.c
@@ -33,6 +33,8 @@
#include exec
the overhead associated with a ring
transition or access to a platform resource.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: qemu-invariant-tsc/target-i386/cpu.c
===
--- qemu-invariant-tsc.orig/target-i386/cpu.c
+++ qemu-invariant
On Tue, Apr 22, 2014 at 12:11:47PM +0300, Michael S. Tsirkin wrote:
On Mon, Apr 21, 2014 at 06:40:17PM -0300, Marcelo Tosatti wrote:
On Sun, Apr 13, 2014 at 04:10:22PM +0300, Michael S. Tsirkin wrote:
It seems that it's easy to implement the EOI assist
on top of the PV EOI feature: simply
On Tue, Apr 22, 2014 at 04:10:44PM -0300, Marcelo Tosatti wrote:
Invariant TSC documentation mentions that invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states.
This is not the case if migration to a host with different TSC frequency
is allowed, or if savevm
On Tue, Apr 22, 2014 at 05:38:07PM -0300, Eduardo Habkost wrote:
On Tue, Apr 22, 2014 at 04:10:44PM -0300, Marcelo Tosatti wrote:
Invariant TSC documentation mentions that invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states.
This is not the case if migration
On Sat, Apr 19, 2014 at 06:17:43PM -0400, Bandan Das wrote:
Minor changes to enable Xen as a L1 hypervisor.
Tested with a Haswell host, Xen-4.3 L1 and debian6 L2
Applied, thanks.
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to
On Wed, Apr 23, 2014 at 01:12:49AM +0300, Michael S. Tsirkin wrote:
On Tue, Apr 22, 2014 at 04:26:48PM -0300, Marcelo Tosatti wrote:
On Tue, Apr 22, 2014 at 12:11:47PM +0300, Michael S. Tsirkin wrote:
On Mon, Apr 21, 2014 at 06:40:17PM -0300, Marcelo Tosatti wrote:
On Sun, Apr 13, 2014
On Fri, Apr 18, 2014 at 12:19:28AM -0400, Paolo Bonzini wrote:
Il 16/04/2014 18:52, Marcelo Tosatti ha scritto:
How about handling VM-entry error due to invalid state with
vmx-emulation_required = true;
continue to main vcpu loop;
What would reset it to false though? None of the places
On Sat, Apr 05, 2014 at 11:33:39AM -0400, Ryan Lichtenwalter wrote:
Dear reader,
Please let me know if I need to file a bug report. It does not seem
like this could be a bug, because it seems like a very natural thing
to want to do that many would have tried before.
Host OS is CentOS 6.5,
On Wed, Apr 16, 2014 at 09:47:52PM +0200, Alexander Graf wrote:
On 16.04.14 20:49, Marcelo Tosatti wrote:
On Thu, Apr 10, 2014 at 01:16:44PM +0200, Christian Borntraeger wrote:
From: Dominik Dingel din...@linux.vnet.ibm.com
To enable CMMA and to reset its state we use the vm kvm_device
+++
include/linux/kvm_host.h | 6 +++
virt/kvm/kvm_main.c| 17 ++
5 files changed, 185 insertions(+), 40 deletions(-)
--
1.8.3.1
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body
On Sun, Apr 13, 2014 at 04:10:22PM +0300, Michael S. Tsirkin wrote:
It seems that it's easy to implement the EOI assist
on top of the PV EOI feature: simply convert the
page address to the format expected by PV EOI.
Signed-off-by: Michael S. Tsirkin m...@redhat.com
Looks alright except:
-
On Sat, Apr 05, 2014 at 11:18:04AM -0700, Simon Matthews wrote:
I experiencing problems on a Windows guest, in which a process
repeatedly shows Killed in the shell after running for a short time
(it is running in the SUA/Interix environment). The process is part of
a tool that was open-source,
On Thu, Apr 17, 2014 at 02:33:41PM -0700, Marcus White wrote:
Hello,
I had some basic questions regarding KVM, and would appreciate any help:)
I have been reading about the KVM architecture, and as I understand
it, the guest shows up as a regular process in the host itself..
I
On Thu, Apr 17, 2014 at 03:33:55PM +0300, Michael S. Tsirkin wrote:
On Mon, Mar 31, 2014 at 09:50:44PM +0300, Michael S. Tsirkin wrote:
With KVM, MMIO is much slower than PIO, due to the need to
do page walk and emulation. But with EPT, it does not have to be: we
know the address from the
On Fri, Apr 04, 2014 at 06:31:04AM +0300, Nadav Amit wrote:
KVM does not handle the reserved bits of x86 page tables correctly:
In PAE, bits 5:8 are reserved in the PDPTE.
In IA-32e, bit 8 is not reserved.
Signed-off-by: Nadav Amit na...@cs.technion.ac.il
---
arch/x86/kvm/mmu.c |6
On Mon, Apr 07, 2014 at 06:37:47PM +0300, Nadav Amit wrote:
According to Intel specifications, only general purpose registers and segment
selectors should are saved in the old TSS during 32-bit task-switch.
should be
Signed-off-by: Nadav Amit na...@cs.technion.ac.il
---
On Thu, Apr 10, 2014 at 01:16:44PM +0200, Christian Borntraeger wrote:
From: Dominik Dingel din...@linux.vnet.ibm.com
To enable CMMA and to reset its state we use the vm kvm_device ioctls,
encapsulating attributes within the KVM_S390_VM_MEM_CTRL group.
Signed-off-by: Dominik Dingel
On Mon, Apr 14, 2014 at 05:59:05PM -0700, Marcus White wrote:
Hello,
A friendly bump to see if anyone has any ideas:-)
Cheers!
On Sun, Apr 13, 2014 at 2:01 PM, Marcus White
roastedseawee...@gmail.com wrote:
Hello,
I had some basic questions regarding KVM, and would appreciate any
On Wed, Apr 16, 2014 at 02:17:08PM -0700, H. Peter Anvin wrote:
On 04/16/2014 12:03 PM, Marcelo Tosatti wrote:
@@ -3550,9 +3550,9 @@ static void reset_rsvds_bits_mask(struct kvm_vcpu
*vcpu,
break;
case PT64_ROOT_LEVEL:
context-rsvd_bits_mask[0][3
On Thu, Mar 27, 2014 at 12:30:34PM +0100, Paolo Bonzini wrote:
About 25% of the time spent in emulation of invalid guest state
is wasted in checking whether emulation is required for the next
instruction. However, this almost never changes except when a
segment register (or TR or LDTR)
CR4_RESERVED_BITS
KVM: Add SMAP support when setting CR4
KVM: Disable SMAP for guests in EPT realmode and EPT unpaging mode
KVM: expose SMAP feature to guest
KVM: Rename variable smep to cr4_smep
Marcelo Tosatti (1):
KVM: x86: remove WARN_ON from get_kernel_ns()
Paolo Bonzini (2
On Fri, Apr 11, 2014 at 08:16:28PM -0400, Paolo Bonzini wrote:
Il 10/04/2014 16:01, Marcelo Tosatti ha scritto:
On Tue, Apr 08, 2014 at 04:38:08PM -0400, Paolo Bonzini wrote:
Il 07/04/2014 21:06, Wu, Feng ha scritto:
Even though the tests do not cover the CPL=3/implicit access case, the
logic
On Mon, Mar 31, 2014 at 05:00:24PM -0400, Bandan Das wrote:
This feature emulates the Acknowledge interrupt on exit behavior.
We can safely emulate it for L1 to run L2 even if L0 itself has it
disabled (to run L1).
Signed-off-by: Bandan Das b...@redhat.com
---
arch/x86/kvm/irq.c | 1 +
On Fri, Apr 11, 2014 at 08:22:13AM +0200, Jan Kiszka wrote:
But rethinking this again, I agree with you. If there's a hypervisor
with a single context invept implmentation that does not fallback,
this will unfortunately not work. Jan, do you agree with this ?
A hypervisor that doesn't
On Fri, Apr 11, 2014 at 08:22:13AM +0200, Jan Kiszka wrote:
On 2014-04-11 02:27, Bandan Das wrote:
Marcelo Tosatti mtosa...@redhat.com writes:
On Mon, Mar 31, 2014 at 05:00:23PM -0400, Bandan Das wrote:
For single context invalidation, we fall through to global
invalidation
On Fri, Apr 11, 2014 at 03:17:47PM -0400, Bandan Das wrote:
Marcelo Tosatti mtosa...@redhat.com writes:
On Mon, Mar 31, 2014 at 05:00:24PM -0400, Bandan Das wrote:
This feature emulates the Acknowledge interrupt on exit behavior.
We can safely emulate it for L1 to run L2 even if L0 itself
On Fri, Apr 11, 2014 at 08:53:09PM +0200, Jan Kiszka wrote:
On 2014-04-11 20:35, Bandan Das wrote:
Jan Kiszka jan.kis...@siemens.com writes:
On 2014-04-11 19:26, Bandan Das wrote:
Jan Kiszka jan.kis...@siemens.com writes:
On 2014-04-11 02:27, Bandan Das wrote:
Marcelo Tosatti mtosa
On Tue, Apr 08, 2014 at 04:38:08PM -0400, Paolo Bonzini wrote:
Il 07/04/2014 21:06, Wu, Feng ha scritto:
Even though the tests do not cover the CPL=3/implicit access case, the
logic to compute PFERR_RSVD_MASK dynamically is already covered by AC=1.
So I'm quite happy with the coverage.
On Tue, Apr 01, 2014 at 05:46:34PM +0800, Feng Wu wrote:
This patch adds SMAP handling logic when setting CR4 for guests
Thanks a lot to Paolo Bonzini for his suggestion to use the branchless
way to detect SMAP violation.
Signed-off-by: Feng Wu feng...@intel.com
@@ -110,10 +118,30 @@
, 92 insertions(+), 20 deletions(-)
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Mar 31, 2014 at 05:00:23PM -0400, Bandan Das wrote:
For single context invalidation, we fall through to global
invalidation in handle_invept() except for one case - when
the operand supplied by L1 is different from what we have in
vmcs12. However, typically hypervisors will only call
Function and callers can be preempted.
https://bugzilla.kernel.org/show_bug.cgi?id=73721
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2b85784..ee0c3b5 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1109,7 +1109,6
On Mon, Mar 10, 2014 at 10:01:49PM +0800, Xiao Guangrong wrote:
Now we can flush all the TLBs out of the mmu lock without TLB corruption when
write-proect the sptes, it is because:
- we have marked large sptes readonly instead of dropping them that means we
just change the spte from writable
On Tue, Apr 01, 2014 at 05:46:34PM -0700, Andy Lutomirski wrote:
On Tue, Apr 1, 2014 at 5:29 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Tue, Apr 01, 2014 at 12:17:16PM -0700, Andy Lutomirski wrote:
On Tue, Apr 1, 2014 at 11:01 AM, Marcelo Tosatti mtosa...@redhat.com
wrote:
On Mon
On Mon, Mar 31, 2014 at 10:33:41PM -0700, Andy Lutomirski wrote:
On Mar 31, 2014 8:45 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Mon, Mar 31, 2014 at 10:52:25AM -0700, Andy Lutomirski wrote:
On 03/29/2014 01:47 AM, Zhanghailiang wrote:
Hi,
I found when Guest is idle, VDSO
On Tue, Apr 01, 2014 at 12:17:16PM -0700, Andy Lutomirski wrote:
On Tue, Apr 1, 2014 at 11:01 AM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Mon, Mar 31, 2014 at 10:33:41PM -0700, Andy Lutomirski wrote:
On Mar 31, 2014 8:45 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Mon, Mar
On Mon, Mar 31, 2014 at 10:52:25AM -0700, Andy Lutomirski wrote:
On 03/29/2014 01:47 AM, Zhanghailiang wrote:
Hi,
I found when Guest is idle, VDSO pvclock may increase host consumption.
We can calcutate as follow, Correct me if I am wrong.
(Host)250 * update_pvclock_gtod = 1500 *
On Sat, Mar 29, 2014 at 08:47:27AM +, Zhanghailiang wrote:
Hi,
I found when Guest is idle, VDSO pvclock may increase host consumption.
We can calcutate as follow, Correct me if I am wrong.
(Host)250 * update_pvclock_gtod = 1500 * gettimeofday(Guest)
In Host, VDSO pvclock introduce a
On Wed, Mar 12, 2014 at 11:40:48AM +0100, Radim Krčmář wrote:
2014-03-11 22:05-0300, Marcelo Tosatti:
On Tue, Mar 11, 2014 at 07:11:18PM +0100, Radim Krčmář wrote:
We always disable cr8 intercept in its handler, but only re-enable it
if handling KVM_REQ_EVENT, so there can be a window
On Tue, Mar 11, 2014 at 07:11:18PM +0100, Radim Krčmář wrote:
We always disable cr8 intercept in its handler, but only re-enable it
if handling KVM_REQ_EVENT, so there can be a window where we do not
intercept cr8 writes, which allows an interrupt to disrupt a higher
priority task.
Fix this
On Thu, Mar 06, 2014 at 06:33:58PM +0100, Jan Kiszka wrote:
We cannot rely on the hardware-provided preemption timer support because
we are holding L2 in HLT outside non-root mode.
Furthermore, emulating
the preemption will resolve tick rate errata on older Intel CPUs.
Can you describe this
On Fri, Mar 07, 2014 at 02:26:19PM +, Li, Bin (Bin) wrote:
Can we have per-VM PLE values?
My understanding is that the ple values are kvm module setting which applying
to all VMs in the system.
And all vms must be stopped first, then unload kvm-intel, reload kvm-intel
with new ple
On Fri, Mar 07, 2014 at 10:08:52PM +, Li, Bin (Bin) wrote:
Fully agree.
It will be a very helpful feature to make ple setting per VM.
This feature will provide more flexible control to the VM user. All KVM user
will love to have it.
The enhancement we proposed is neither overlapping
On Wed, Mar 05, 2014 at 09:16:45PM +, Li, Bin (Bin) wrote:
Did you also find out here why this is the case?
Binl:
Yes. The application running in our customized embedded OS is also real time
application which is timing sensitive.
The timing sensitive level varies among the
On Thu, Feb 27, 2014 at 07:30:26PM +0100, Paolo Bonzini wrote:
Il 04/02/2014 19:41, Marcelo Tosatti ha scritto:
-mem-prealloc asks to preallocate memory residing on -mem-path path.
Currently QEMU exits in case:
- Memory file has been created but allocation via explicit write
fails
On Fri, Feb 28, 2014 at 12:52:53PM +0100, Andrew Jones wrote:
This patch series addresses two issues with global clock updates.
The first fixes a bug found on hosts that have a tsc marked as
unstable. As global clock updates get triggered on every vcpu load
in these cases, guests with a large
On Wed, Feb 26, 2014 at 07:15:11PM +0100, Andrew Jones wrote:
When we update a vcpu's local clock it may pick up an NTP correction.
We can't wait an indeterminate amount of time for other vcpus to pick
up that correction, so commit 0061d53daf26f introduced a global clock
update. However, we
On Wed, Feb 26, 2014 at 07:15:12PM +0100, Andrew Jones wrote:
commit 0061d53daf26f introduced a mechanism to execute a global clock
update for a vm. We can apply this periodically in order to propagate
host NTP corrections. Also, if all vcpus of a vm are pinned, then
without an additional
On Tue, Feb 25, 2014 at 11:30:37AM +0800, Xiao Guangrong wrote:
On 02/25/2014 12:59 AM, Marcelo Tosatti wrote:
Read-only large sptes can be created due to read-only faults as
follows:
- QEMU pagetable entry that maps guest memory is read-only
due to COW.
- Guest read faults
On Tue, Feb 25, 2014 at 11:11:19PM +0800, Xiao Guangrong wrote:
On Feb 25, 2014, at 9:13 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Tue, Feb 25, 2014 at 11:30:37AM +0800, Xiao Guangrong wrote:
On 02/25/2014 12:59 AM, Marcelo Tosatti wrote:
Read-only large sptes can be created
emulator_cmpxchg_emulated writes to guest memory, therefore it should
updated the dirty bitmap accordingly.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 39c28f09..29db96d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
On Tue, Feb 25, 2014 at 10:44:54PM -0300, Marcelo Tosatti wrote:
emulator_cmpxchg_emulated writes to guest memory, therefore it should
updated the dirty bitmap accordingly.
s/updated/update/
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/x86.c b/arch/x86
Rather than fall back to TCG (so the user has to discover
whats happening, in case of no access to qemu stdout/stderr).
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/kvm-all.c b/kvm-all.c
index 3937754..3f6841d 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1432,11 +1432,10
-only.
- Write-fault on such memory causes guest to loop endlessly
(which must go down to level 1 because dirty logging is enabled).
Fix by dropping large spte when necessary.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index e50425d
On Mon, Feb 24, 2014 at 04:42:29PM +0100, Andrew Jones wrote:
When the tsc is marked unstable on the host it causes global clock
updates to be requested each time a vcpu is loaded, nearly halting
all progress on guests with a large number of vcpus.
Fix this by only requesting a local clock
On Wed, Feb 19, 2014 at 06:42:56PM -0300, Alejandro Comisario wrote:
Hi everyone.
We are having a private cloud with more than 1000 phy servers.
Each server has 128GB of RAM and 24 cores (2 heaxacores with HT
enabled), but the amount of vms running on those servers versus the
flavor (amount
fails.
Have the same behaviour for all cases: fail in case -mem-path and
-mem-prealloc are specified for regions where the requested size is
suitable for hugepages.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/exec.c b/exec.c
index 9ad0a4b..1da1ba7 100644
--- a/exec.c
+++ b/exec.c
On Tue, Feb 04, 2014 at 01:41:53PM -0500, Marcelo Tosatti wrote:
-mem-prealloc asks to preallocate memory residing on -mem-path path.
Currently QEMU exits in case:
- Memory file has been created but allocation via explicit write
fails.
And it fallbacks to malloc in case:
- Querying
Remove unused last_kernel_ns variable.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index fdf83af..0ffe714 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -444,7 +444,6
On Fri, Jan 24, 2014 at 05:17:52PM +0100, Paolo Bonzini wrote:
kvm_arch_init_vcpu's initialization of the KVM leaves at 0x4100
is broken, because KVM_CPUID_FEATURES is left at 0x4001. Move
it to 0x4101 if Hyper-V is enabled.
Signed-off-by: Paolo Bonzini pbonz...@redhat.com
On Thu, Jan 23, 2014 at 06:12:51PM +1100, Vadim Rozenfeld wrote:
Vadim Rozenfeld (2):
mark hyper-v hypercall page as dirty
mark hyper-v vapic assist page as dirty
arch/x86/kvm/x86.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
--
1.8.1.4
Reviewed-by: Marcelo
On Mon, Jan 20, 2014 at 02:25:36PM +0100, Paolo Bonzini wrote:
The original patch from Liu Jinsong restricted them to reset or full
state updates, but that's unnecessary (and wrong) since the BNDCFGS
MSR has no side effects.
Why is it necessary to save/restore BNDCFGS MSR on states other
than
On Tue, Jan 21, 2014 at 11:23:37PM +0900, Fernando Luis Vazquez Cao wrote:
(2014/01/21 9:19), Marcelo Tosatti wrote:
On Mon, Jan 20, 2014 at 11:59:39PM +0900, Fernando Luis Vazquez Cao wrote:
(2014/01/20 22:33), Marcelo Tosatti wrote:
On Mon, Jan 20, 2014 at 11:56:56AM +0200, Nadav Har'El
On Mon, Jan 20, 2014 at 11:59:39PM +0900, Fernando Luis Vazquez Cao wrote:
(2014/01/20 22:33), Marcelo Tosatti wrote:
On Mon, Jan 20, 2014 at 11:56:56AM +0200, Nadav Har'El wrote:
If KVM_SYSTEM_TIME is not a correct way to get a monotonic paravirtual clock
from KVM, is there a correct way
On Tue, Jan 21, 2014 at 03:24:43PM +0200, Nadav Har'El wrote:
On Mon, Jan 20, 2014, Marcelo Tosatti wrote about Re: Monotonic clock with
KVM pv-clock:
On Mon, Jan 20, 2014 at 11:56:56AM +0200, Nadav Har'El wrote:
Hi,
I'm trying to figure out how a guest OS can get a monotonic clock
On Mon, Jan 20, 2014 at 11:56:56AM +0200, Nadav Har'El wrote:
Hi,
I'm trying to figure out how a guest OS can get a monotonic clock using
KVM's paravirtual clock.
At first, I thought that the clock I get using KVM_SYSTEM_TIME is a
monotonic clock, based on the host's monotonic clock.
It
On Fri, Jan 17, 2014 at 10:06:00PM +1100, Vadim Rozenfeld wrote:
On Thu, 2014-01-16 at 20:23 -0200, Marcelo Tosatti wrote:
On Thu, Jan 16, 2014 at 08:18:37PM +1100, Vadim Rozenfeld wrote:
Signed-off: Peter Lieven p...@kamp.de
Signed-off: Gleb Natapov
Signed-off: Vadim Rozenfeld vroze
On Fri, Jan 17, 2014 at 01:17:21AM +0200, Rom Freiman wrote:
Hi everybody,
Marcelo, your suggestion above should work together with the same
patch to __direct_mapping.
After running some test on different kernels, the !VALID_PAGE happens
as following:
Linux localhost.localdomain
On Thu, Jan 16, 2014 at 08:18:37PM +1100, Vadim Rozenfeld wrote:
Signed-off: Peter Lieven p...@kamp.de
Signed-off: Gleb Natapov
Signed-off: Vadim Rozenfeld vroze...@redhat.com
After some consideration I decided to submit only Hyper-V reference
counters support this time. I will submit iTSC
On Wed, Jan 15, 2014 at 12:43:02PM +0100, Paolo Bonzini wrote:
Il 06/01/2014 15:18, Marcelo Tosatti ha scritto:
To fix a problem related to different resolution of TSC and system clock,
the offset in TSC units is approximated by
delta = vcpu-hv_clock.tsc_timestamp- vcpu
On Wed, Jan 15, 2014 at 12:43:02PM +0100, Paolo Bonzini wrote:
Il 06/01/2014 15:18, Marcelo Tosatti ha scritto:
To fix a problem related to different resolution of TSC and system clock,
the offset in TSC units is approximated by
delta = vcpu-hv_clock.tsc_timestamp- vcpu
On Wed, Jan 15, 2014 at 01:55:50PM +0100, Paolo Bonzini wrote:
Il 15/01/2014 13:34, Marcelo Tosatti ha scritto:
On Wed, Jan 15, 2014 at 12:43:02PM +0100, Paolo Bonzini wrote:
Il 06/01/2014 15:18, Marcelo Tosatti ha scritto:
To fix a problem related to different resolution of TSC
On Wed, Jan 15, 2014 at 05:53:22PM +0100, Paolo Bonzini wrote:
Il 15/01/2014 17:37, Marcelo Tosatti ha scritto:
Right. Another question, what about this comment:
/* Reset of TSC must disable overshoot protection below */
vcpu-arch.hv_clock.tsc_timestamp = 0
-arch.virtual_tsc_khz;
- /* Reset of TSC must disable overshoot protection below */
- vcpu-arch.hv_clock.tsc_timestamp = 0;
vcpu-arch.last_guest_tsc = data;
/* Keep track of which generation this VCPU has synchronized to */
--
1.7.1
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
On Mon, Jan 13, 2014 at 11:11:40PM -0500, Vadim Rozenfeld wrote:
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: kvm@vger.kernel.org, p...@dlhnet.de, pbonz...@redhat.com
Sent: Thursday, December 12, 2013 6:27:00 AM
On Tue, Jan 14, 2014 at 08:22:17PM +1100, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
for an Invariant Time Stamp Counter (iTSC).
v2 - v3
Handle TSC sequence, scale, and offest
On Tue, Jan 14, 2014 at 12:03:24PM +0100, Paolo Bonzini wrote:
The cleanup between v3 and v4 is really nice; thanks. What happened to
the glitch you reported in the v3 thread.
Il 14/01/2014 10:22, Vadim Rozenfeld ha scritto:
+ tsc_ref.tsc_scale = ((1LL 32) /
+
On Thu, Jan 09, 2014 at 03:08:25PM -0500, Hu Yaohui wrote:
Hi Marcelo,
Thanks for your replying!
I hope you have a good day! I am sorry that it's not that obvious to
me after I checked that function.
If the remote vcpu is not in the same pcpu as the sender which calls
kvm_vpcu_kick.
Before
On Wed, Jan 08, 2014 at 06:35:00PM -0500, Hu Yaohui wrote:
Thanks a lot Marcelo!
On Wed, Jan 8, 2014 at 6:25 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Wed, Jan 08, 2014 at 06:14:15PM -0500, Hu Yaohui wrote:
Hi guys,
I think you should be pretty familiar with lapic. I would really
On Mon, Dec 30, 2013 at 03:56:29PM -0500, Zhihui Zhang wrote:
According to Table C-1 of Intel SDM 3C, a VM exit happens on an I/O
instruction when
use I/O bitmaps VM-execution control was 0 _and_ the unconditional I/O
exiting
VM-execution control was 1. So we can't just check unconditional
On Sun, Dec 29, 2013 at 12:12:29PM -0800, Stephen Hemminger wrote:
Running 'make namespacecheck' found lots of functions that
should be declared static, since only used in one file.
Signed-off-by: Stephen Hemminger step...@networkplumber.org
Applied both, thanks.
--
To unsubscribe from this
301 - 400 of 4400 matches
Mail list logo
