The launch state is not a member in the VMCS area, use a separate
variable (list) to store it instead.
Signed-off-by: Dongxiao Xu dongxiao...@intel.com
---
arch/x86/kvm/vmx.c | 86 +---
1 files changed, 81 insertions(+), 5 deletions(-)
diff
abstract vmcs12_read and vmcs12_write functions to do the vmcs12
read/write operations.
Signed-off-by: Dongxiao Xu dongxiao...@intel.com
---
arch/x86/kvm/vmx.c | 85 +---
1 files changed, 41 insertions(+), 44 deletions(-)
diff --git
When referencing vmcs12 fields, the current approach is to use
struct.field style. This commit replace all the current solution
by calling vmcs12_read() and vmcs12_write() fucntions.
Signed-off-by: Dongxiao Xu dongxiao...@intel.com
---
arch/x86/kvm/vmx.c | 591
This is a preparation for the later change, which use vmcs12_read()
and vmcs12_write() to replace the way to access vmcs12 fields.
Since the above functions uses 'vcpu' as parameter, we also use
'vcpu' as the parameter in nested_cpu_has_xxx functions.
Signed-off-by: Dongxiao Xu
Hi Peter,
On Thu, Nov 22, 2012 at 04:13:17PM +, Peter Maydell wrote:
On 22 November 2012 15:58, Will Deacon will.dea...@arm.com wrote:
+++ b/tools/kvm/arm/aarch32/smp-pen.S
@@ -0,0 +1,30 @@
+#include kvm/kvm-arch.h
+
+#include arm-common/gic.h
+
+ .arm
+
+
On 11/22/2012 10:58 AM, Will Deacon wrote:
Commit 29fc7c5a4f516d388fb6e1f6d24bfb04b8093e54 upstream.
rb_erase_augmented() is a static function annotated with
__always_inline. This causes a compile failure when attempting to use
the rbtree implementation as a library (e.g. kvm tool):
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/include/asm/kvm.h | 55
arch/mips/include/asm/kvm_host.h | 669 +++
2 files changed, 724 insertions(+)
create mode 100644 arch/mips/include/asm/kvm.h
create mode 100644
The following patchset implements KVM support for MIPS32R2 processors,
using Trap Emulate, with basic runtime binary translation to improve
performance. The goal has been to keep the Guest kernel changes to a
minimum.
The patch is against Linux 3.7-rc6. This is Version 2 of the patch set.
-Original Message-
From: Gleb Natapov [mailto:g...@redhat.com]
Sent: Wednesday, November 21, 2012 10:15 PM
To: Xu, Dongxiao
Cc: kvm@vger.kernel.org; mtosa...@redhat.com
Subject: Re: [PATCH 4/4] nested vmx: use a list to store the launched vmcs12
for L1 VMM
On Wed, Nov 21, 2012 at
Hello, guys!
I have written paravirtual interface for GPA-HPA translation inside guest. I
build GPA-HPA translation table in guest virtual memory.
To do this, I need to translate userspace virtual address from memslot to host
physical address. I use hva_to_pfn for it. It works fine, but linux
Currently, the following instructions are translated:
- CACHE (indexed)
- CACHE (va based): translated to a synci, overkill on D-CACHE operations, but
still much faster than a trap.
- mfc0/mtc0: the virtual COP0 registers for the guest are implemented as 2-D
array
[COP#][SEL] and this is
On Wed, Nov 21, 2012 at 04:09:38PM +0800, Yang Zhang wrote:
Ack interrupt on vmexit is required by Posted Interrupt. With it,
when external interrupt caused vmexit, the cpu will acknowledge the
interrupt controller and save the interrupt's vector in vmcs.
There are several approaches to
From: H. Peter Anvin h...@linux.intel.com
In __emulate_1op_rax_rdx, we use +a and +d which are input/output
constraints, and *then* use a and d as input constraints. This is
incorrect, but happens to work on some versions of gcc.
However, it breaks gcc with -O0 and icc, and may break on future
CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported
Basic design is to emulate the MSR by allowing reads and writes to the
hypervisor vcpu specific locations to store the value of the emulated MSRs.
In this way the IA32_TSC_ADJUST value will be included in all reads to
the TSC MSR
I'm trying to understand a performance problem (50% degradation in the
VM) that I'm experiencing some systems with qemu-kvm. Running Fedora
with 3.5.3-1.fc17.x86_64 or 3.6.6-1.fc17.x86_64, qemu 1.0.1 or 1.2.1
on AMD Opteron 6176 and 6174, and all of them behave identically.
A Windows guest is
On Wed, 2012-11-21 at 16:19 +0200, Alex Lyakas wrote:
Hi,
I was advised to turn off irqbalance and reproduced this issue, but
the failure is in a different place now. Now request_threaded_irq()
fails with EBUSY.
According to the code, this can only happen on the path:
request_threaded_irq()
Currently, if a machine check interrupt happens while we are in the
guest, we exit the guest and call the host's machine check handler,
which tends to cause the host to panic. Some machine checks can be
triggered by the guest; for example, if the guest creates two entries
in the SLB that map the
Currently, if the guest does an H_PROTECT hcall requesting that the
permissions on a HPT entry be changed to allow writing, we make the
requested change even if the page is marked read-only in the host
Linux page tables. This is a problem since it would for instance
allow a guest to modify a page
With HV-style KVM, we maintain reverse-mapping lists that enable us to
find all the HPT (hashed page table) entries that reference each guest
physical page, with the heads of the lists in the memslot-arch.rmap
arrays. When we reset the HPT (i.e. when we reboot the VM), we clear
out all the HPT
On 11/21/2012 07:57 PM, Michael S. Tsirkin wrote:
On Wed, Nov 21, 2012 at 12:24:55PM +0800, Asias He wrote:
On 11/20/2012 09:37 PM, Michael S. Tsirkin wrote:
On Tue, Nov 20, 2012 at 02:39:40PM +0800, Asias He wrote:
On 11/20/2012 04:26 AM, Michael S. Tsirkin wrote:
On Mon, Nov 19, 2012 at
Signed-off-by: Will Auld will.a...@intel.com
---
config-x86-common.mak | 5 -
x86/tsc_adjust.c | 43 +++
2 files changed, 47 insertions(+), 1 deletion(-)
create mode 100644 x86/tsc_adjust.c
diff --git a/config-x86-common.mak
On Thu, Nov 22, 2012 at 08:59:15AM +0800, Zhang Yanfei wrote:
于 2012年11月21日 18:33, Gleb Natapov 写道:
On Wed, Nov 21, 2012 at 10:23:12AM +0800, Zhang Yanfei wrote:
This patch adds an atomic notifier list named crash_notifier_list.
When loading kvm-intel module, a notifier will be registered
On Wed, Nov 21, 2012 at 11:27:19PM +0800, Zhang Yanfei wrote:
The notifier will be registered in vmclear_notifier_list when loading
kvm-intel module. And the bitmap indicates whether we should do
VMCLEAR operation in kdump. The bits in the bitmap are set/unset
according to different
On 19.11.2012 18:20, Stefan Hajnoczi wrote:
On Thu, Nov 8, 2012 at 4:26 PM, Peter Lieven p...@dlhnet.de wrote:
Has anyone any other idea what the cause could be or where to start?
Hi Peter,
I suggested posting the source tree you are building. Since you have
applied patches yourself no one
-Original Message-
From: kvm-ow...@vger.kernel.org
[mailto:kvm-ow...@vger.kernel.org] On Behalf Of Lentes, Bernd
Sent: Tuesday, November 20, 2012 5:14 PM
To: KVM-ML (kvm@vger.kernel.org)
Subject: messed up with xml-files and configuration of a VM
Hi,
first, i'm new to kvm. I'm
On Thu, Nov 22, 2012 at 03:16:47AM +, Xu, Dongxiao wrote:
-Original Message-
From: Gleb Natapov [mailto:g...@redhat.com]
Sent: Wednesday, November 21, 2012 9:27 PM
To: Xu, Dongxiao
Cc: kvm@vger.kernel.org; mtosa...@redhat.com
Subject: Re: [PATCH 1/4] nested vmx: clean
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kernel/asm-offsets.c | 66 ++
1 file changed, 66 insertions(+)
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 0c4bce4..66895de 100644
---
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/mm/c-r4k.c | 6 --
arch/mips/mm/cache.c | 1 +
arch/mips/mm/tlb-r4k.c | 2 ++
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 2b61462..1923063 100644
---
CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported
Basic design is to emulate the MSR by allowing reads and writes to the
hypervisor vcpu specific locations to store the value of the emulated MSRs.
In this way the IA32_TSC_ADJUST value will be included in all reads to
the TSC MSR
Hi Alex,
thanks for your response.
I printed out the vector and entry values of dev-host_msix_entries[i]
within assigned_device_enable_host_msix() before call to
request_threaded_irq(). I see that they are all 0s:
kernel: [ 3332.610980] kvm-8095: KVM_ASSIGN_DEV_IRQ assigned_dev_id=924
kernel:
On 22 November 2012 15:58, Will Deacon will.dea...@arm.com wrote:
+++ b/tools/kvm/arm/aarch32/smp-pen.S
@@ -0,0 +1,30 @@
+#include kvm/kvm-arch.h
+
+#include arm-common/gic.h
+
+ .arm
+
+ .globl smp_pen_start
+ .globl smp_jump_addr
+ .globl smp_pen_end
+
+
Add RFS support to virtio network device.
Add a new feature flag VIRTIO_NET_F_RFS for this feature, a new
configuration field max_virtqueue_pairs to detect supported number of
virtqueues as well as a new command VIRTIO_NET_CTRL_RFS to program
packet steering for unidirectional protocols.
On 11/14/2012 11:45 AM, Blower, Melanie wrote:
[1.] gcc -O0 assembly arch/x86/kvm/emulate.c gets compilation failure --
incorrect register restrictions
[2.] Full description of the problem/report:
I'm trying to compile this file at -O0, but gcc chokes in register allocation
at the inline
22.11.2012, 18:13, Koshelev Vladimir vedu...@yandex.ru:
gt; Hello, guys!
gt;
gt; I have written paravirtual interface for GPA-HPA translation inside
guest. I build GPA-HPA translation table in guest virtual memory.
gt; To do this, I need to translate userspace virtual address from memslot to
- Note that this file is statically linked with the rest of the host kernel
(KSEG0). This is because kernel modules are
loaded into mapped space on MIPS and we want to make sure that we don't get any
host kernel TLB faults while
manipulating TLBs.
- Virtual Guest TLBs are implemented as 64 entry
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kvm/00README.txt | 31 +++
arch/mips/kvm/Makefile | 17 +
2 files changed, 48 insertions(+)
create mode 100644 arch/mips/kvm/00README.txt
create mode 100644 arch/mips/kvm/Makefile
diff
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kernel/smp.c | 1 +
mm/bootmem.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 9005bf9..60ea489 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@
Thank you so much, this patch solves the compilation errors that I was seeing
in the Intel compiler, and with gcc -O0
BTW, my charter is to compile the kernel with the Intel compiler, and my
testing stops short of verifying that the kernel build actually works.
Best regards, Melanie Blower
In order to track who initiated the call (host or guest) to modify an msr
value I have changed function call parameters along the call path. The
specific change is to add a struct pointer parameter that points to (index,
data, caller) information rather than having this information passed as
On Thu, 2012-11-22 at 11:25 +0100, Paolo Bonzini wrote:
Again, from memory, you were volunteered to do the initial x86
change so
we could piggy back on it :-) Or do I remember wrong ?
Please suggest an API, then we can work out the x86 changes. I can
volunteer myself, but I wasn't in the
This series of patches fixes various bugs that we have found recently.
The bugs fixed in patches 1, 3 and 4 are also vulnerabilities where
the guest could cause the host to crash or could access host memory
inappropriately. The bug fixed in patch 2 could cause the host to
hang or crash after the
This fixes a bug in the code which allows userspace to read out the
contents of the guest's hashed page table (HPT). On the second and
subsequent passes through the HPT, when we are reporting only those
entries that have changed, we were incorrectly initializing the index
field of the header with
When we change or remove a HPT (hashed page table) entry, we can do
either a global TLB invalidation (tlbie) that works across the whole
machine, or a local invalidation (tlbiel) that only affects this core.
Currently we do local invalidations if the VM has only one vcpu or if
the guest requests
In order to track who initiated the call (host or guest) to modify an msr
value I have changed function call parameters along the call path. The
specific change is to add a struct pointer parameter that points to (index,
data, caller) information rather than having this information passed as
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kvm/kvm_mips_int.c | 243 +++
arch/mips/kvm/kvm_mips_int.h | 49 +
2 files changed, 292 insertions(+)
create mode 100644 arch/mips/kvm/kvm_mips_int.c
create mode 100644
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kvm/kvm_cb.c| 14 ++
arch/mips/kvm/kvm_trap_emul.c | 482 ++
2 files changed, 496 insertions(+)
create mode 100644 arch/mips/kvm/kvm_cb.c
create mode 100644
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kvm/kvm_mips_stats.c | 81 ++
1 file changed, 81 insertions(+)
create mode 100644 arch/mips/kvm/kvm_mips_stats.c
diff --git a/arch/mips/kvm/kvm_mips_stats.c b/arch/mips/kvm/kvm_mips_stats.c
new
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
virt/kvm/kvm_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index be70035..ecd96ce 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1880,7 +1880,7 @@ static long
This bug is discussed in:
http://lkml.indiana.edu/hypermail/linux/kernel/1205.2/00719.html
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kernel/entry.S | 7 ++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
- The Guest kernel is run in UM and privileged instructions cause a trap.
- If the instruction causing the trap is in a branch delay slot, the branch
needs to be emulated to figure
out the PC @ which the guest will resume execution.
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
- Implements the arch specific APIs for KVM, some are stubs for MIPS
- kvm_mips_handle_exit(): Main 'C' distpatch routine for handling exceptions
while in Guest mode.
- Also implements in-kernel timer interrupt support for the guest.
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
Both Guest kernel and Guest Userspace execute in UM. The memory map is as
follows:
Guest User address space: 0x - 0x4000
Guest Kernel Unmapped: 0x4000 - 0x6000
Guest Kernel Mapped:0x6000 - 0x8000
- Guest Usermode virtual memory is limited to 1GB.
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/include/asm/mmu_context.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/mips/include/asm/mmu_context.h
b/arch/mips/include/asm/mmu_context.h
index 9b02cfb..10a3fd2 100644
--- a/arch/mips/include/asm/mmu_context.h
+++
- __kvm_mips_vcpu_run: main entry point to enter guest, we save kernel context,
load
up guest context from and ERET to guest context.
- mips32_exception: L1 exception handler(s), save k0/k1 and jump to main
handlers.
- mips32_GuestException: Generic exception handlers for exceptions/interrupts
On 22 November 2012 21:00, Benjamin Herrenschmidt
b...@kernel.crashing.org wrote:
Oh it's simple enough initially, just move the ioctl call from generic
kvm init to machine init. The problem is then to add an argument, since
that essentially means changing the ioctl number, but we need that for
-Original Message-
From: Gleb Natapov [mailto:g...@redhat.com]
Sent: Wednesday, November 21, 2012 9:27 PM
To: Xu, Dongxiao
Cc: kvm@vger.kernel.org; mtosa...@redhat.com
Subject: Re: [PATCH 1/4] nested vmx: clean up for vmcs12 read and write
On Wed, Nov 21, 2012 at 05:04:34PM
Hello.
On 22-11-2012 6:34, Sanjay Lal wrote:
Signed-off-by: Sanjay Lal sanj...@kymasys.com
---
arch/mips/kvm/kvm_mips_stats.c | 81 ++
1 file changed, 81 insertions(+)
create mode 100644 arch/mips/kvm/kvm_mips_stats.c
diff --git
Il 21/11/2012 02:07, Benjamin Herrenschmidt ha scritto:
David (CC) want to make some progress with our in-kernel PIC. From
memory, one of the outcomes of the BOF was that we need to move the
existing enable in-kernel PIC from generic KVM init to machine init in
order to be able to add an
On Wed, Nov 21, 2012 at 04:09:36PM +0800, Yang Zhang wrote:
Virtual interrupt delivery avoids KVM to inject vAPIC interrupts
manually, which is fully taken care of by the hardware. This needs
some special awareness into existing interrupr injection path:
- for pending interrupt, instead of
https://bugzilla.kernel.org/show_bug.cgi?id=50891
Summary: The smp_affinity cannot work correctly when PCI
passthrough device using msi/msi-x with KVM
Product: Virtualization
Version: unspecified
Kernel Version: 3.7-rc6
Platform:
https://bugzilla.kernel.org/show_bug.cgi?id=50891
liyi yiliker...@gmail.com changed:
What|Removed |Added
Summary|The smp_affinity cannot |The smp_affinity cannot
linux/compiler.h will never give us a definition for __compiler_offsetof
because __KERNEL__ isn't defined, so just use the simple definition that
we have already.
This patch removes the redundant code.
Signed-off-by: Will Deacon will.dea...@arm.com
---
tools/kvm/include/linux/stddef.h | 6
When registering memory banks for a guest, it is useful to keep the
range information around for translating between guest and host address
spaces.
This patch adds a list of kvm_mem_bank structures to struct kvm, which
is updated when a new bank is registered.
Signed-off-by: Will Deacon
Hello,
This is version two of the patches I originally posted here:
http://www.spinics.net/lists/kvm/msg82447.html
Changes since version one include:
- MAX_MEMORY no longer needlessly page-aligned for ARM
- Use xread instead of read for reading the kernel image
-
Commit 29fc7c5a4f516d388fb6e1f6d24bfb04b8093e54 upstream.
rb_erase_augmented() is a static function annotated with
__always_inline. This causes a compile failure when attempting to use
the rbtree implementation as a library (e.g. kvm tool):
rbtree_augmented.h:125:24: error: expected `=',
Hi Marcelo,
(2012/11/21 7:51), Marcelo Tosatti wrote:
On Tue, Nov 20, 2012 at 07:36:33PM +0900, Yoshihiro YUNOMAE wrote:
Hi Marcelo,
Sorry for the late reply.
(2012/11/17 4:15), Marcelo Tosatti wrote:
On Wed, Nov 14, 2012 at 05:26:10PM +0900, Yoshihiro YUNOMAE wrote:
Thank you for
-Original Message-
From: Gleb Natapov [mailto:g...@redhat.com]
Sent: Wednesday, November 21, 2012 9:04 PM
To: Xu, Dongxiao
Cc: kvm@vger.kernel.org; mtosa...@redhat.com
Subject: Re: [PATCH 1/4] nested vmx: clean up for vmcs12 read and write
On Wed, Nov 21, 2012 at 05:04:34PM
Hi,
We have users running on redhat based distro (Kernel
2.6.32-131.21.1.el6.x86_64 ) with kvm, when customer made cron job
script to copy large files between kvm guest or some other user space
program leads to disk i/o or VM activities, users get following soft
lockup message from console:
Nov
This patch adds initial support for ARMv7 processors (more specifically,
Cortex-A15) to kvmtool.
Everything is driven by FDT, including dynamic generation of virtio nodes
for MMIO devices (PCI is not used due to lack of a suitable host-bridge).
The virtual timers and virtual interrupt controller
PCI devices are currently registered into the pci_devices array via the
pci__register function, which can then be indexed later by architecture
code to construct device tree nodes. For MMIO devices, there is no such
utility.
Rather than invent a similar mechanism for MMIO, this patch creates a
Running a guest with multiple banks of memory based above 0 causes the
guest_flat_to_host address conversion to fail, as it is assumed that
guest memory addresses are offset linearly from 0.
This patch changes the translation function so that the kvm_mem_bank
structures registered by
When generating a device tree for a guest, it is useful to have a helper
for converting host addresses to guest addresses in order to populate
the device nodes correctly.
This patch adds such a helper, following a similar implementation to the
reverse translation function that already exists.
Commit 5e980d372620 (kvm tools: virtio: add dummy set_size_vq
implementations) added dummy set_size_vq implementations for a number
of devices now that they can use virtio MMIO as their transport.
Unfortunately, it missed the balloon driver, so this patch adds the same
implementation there.
CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported
Basic design is to emulate the MSR by allowing reads and writes to a guest
vcpu specific location to store the value of the emulated MSR while adding
the value to the vmcs tsc_offset. In this way the IA32_TSC_ADJUST value will
be
-Original Message-
From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel-
ow...@vger.kernel.org] On Behalf Of Alex Williamson
Sent: Tuesday, November 20, 2012 11:50 PM
To: Alexey Kardashevskiy
Cc: Benjamin Herrenschmidt; Paul Mackerras; linuxppc-
d...@lists.ozlabs.org;
This patch series clean up and restructure part of the nested vmx code.
The main purpose is to abstract the vmcs12_read() and vmcs12_write() functions.
With this change, we have a unified API to get/set field values from/to vmcs12.
Changes from v1 to v2:
Move the VMCS field valid check into
Marcelo,
here is a kvm related fix for s390. Please consider for the next merge window.
Since it is s390 core kernel, I will also push it into Martins s390 tree.
Christian Borntraeger (1):
Subject: [PATCH] s390/kvm: Fix address space mixup
arch/s390/kernel/entry64.S | 25
I was chasing down a bug of random validity intercepts on s390.
(guest prefix page not mapped in the host virtual aspace). Turns out
that the problem was a wrong address space control element. The
cause was quite complex:
During paging activity a DAT protection during SIE caused a program
On Tue, Nov 20, 2012 at 07:57:48AM +0800, Xiao Guangrong wrote:
The current reexecute_instruction can not well detect the failed instruction
emulation. It allows guest to retry all the instructions except it accesses
on error pfn.
For example, these cases can not be detected:
- for tdp used
On 22/11/12 22:56, Sethi Varun-B16395 wrote:
-Original Message-
From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel-
ow...@vger.kernel.org] On Behalf Of Alex Williamson
Sent: Tuesday, November 20, 2012 11:50 PM
To: Alexey Kardashevskiy
Cc: Benjamin Herrenschmidt; Paul
Hi Guys,
there have a issue about smp_affinity cannot work correctly on guest
os when PCI passthrough device using msi/msi-x with KVM.
My reason:
pcpu will occur a lot of ipi interrupt to find the vcpu to handle the
irq. so the guest os will VM_EXIT frequelty. right?
if smp_affinity can work
Marcelo,
I have addressed your comments for this patch set, the following patch for
QEMU-KVM and for adding a test
case for tsc_adjust also to follow today.
Thanks,
Will
Will Auld (2):
Add code to track call origin for msr assignment.
Enabling IA32_TSC_ADJUST for KVM guest VM support
On 11/22/2012 10:46 PM, Michael S. Tsirkin wrote:
Add RFS support to virtio network device.
Add a new feature flag VIRTIO_NET_F_RFS for this feature, a new
configuration field max_virtqueue_pairs to detect supported number of
virtqueues as well as a new command VIRTIO_NET_CTRL_RFS to program
Gleb Natapov wrote on 2012-11-22:
On Wed, Nov 21, 2012 at 04:09:38PM +0800, Yang Zhang wrote:
Ack interrupt on vmexit is required by Posted Interrupt. With it,
when external interrupt caused vmexit, the cpu will acknowledge the
interrupt controller and save the interrupt's vector in vmcs.
CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported
Basic design is to emulate the MSR by allowing reads and writes to a guest
vcpu specific location to store the value of the emulated MSR while adding
the value to the vmcs tsc_offset. In this way the IA32_TSC_ADJUST value will
be
On Wed, Nov 21, 2012 at 07:43:16AM +0100, Nikola Ciprich wrote:
Hello Stefan,
thanks! here it goes..
*** glibc detected *** /usr/bin/qemu-kvm: double free or corruption
(!prev): 0x7fc634008cd0 ***
=== Backtrace: =
/lib64/libc.so.6(+0x75916)[0x7fc9026f4916]
On Thu, Nov 22, 2012 at 09:17:34PM +0200, George-Cristian Bîrzan wrote:
I'm trying to understand a performance problem (50% degradation in the
VM) that I'm experiencing some systems with qemu-kvm. Running Fedora
with 3.5.3-1.fc17.x86_64 or 3.6.6-1.fc17.x86_64, qemu 1.0.1 or 1.2.1
on AMD
On Wed, Nov 21, 2012 at 03:36:50PM -0800, Vincent Li wrote:
We have users running on redhat based distro (Kernel
2.6.32-131.21.1.el6.x86_64 ) with kvm, when customer made cron job
script to copy large files between kvm guest or some other user space
program leads to disk i/o or VM activities,
Currently, if a machine check interrupt happens while we are in the
guest, we exit the guest and call the host's machine check handler,
which tends to cause the host to panic. Some machine checks can be
triggered by the guest; for example, if the guest creates two entries
in the SLB that map the
With HV-style KVM, we maintain reverse-mapping lists that enable us to
find all the HPT (hashed page table) entries that reference each guest
physical page, with the heads of the lists in the memslot-arch.rmap
arrays. When we reset the HPT (i.e. when we reboot the VM), we clear
out all the HPT
Currently, if the guest does an H_PROTECT hcall requesting that the
permissions on a HPT entry be changed to allow writing, we make the
requested change even if the page is marked read-only in the host
Linux page tables. This is a problem since it would for instance
allow a guest to modify a page
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