Commit 71760950bf3dc796e5e53ea3300dec724a09f593
("arm/arm64: KVM: add a common vgic_queue_irq_to_lr fn") introduced
vgic_queue_irq_to_lr() function which checks vgic_dist_irq_is_pending()
before setting LR_STATE_PENDING bit. However, in some cases, the following
race condition is possible:
1. Userl
On 08/26/2015 01:45 PM, Joe Perches wrote:
> On Wed, 2015-08-26 at 13:39 +0800, Jason Wang wrote:
>> >
>> > On 08/25/2015 11:29 PM, Joe Perches wrote:
>>> > > On Tue, 2015-08-25 at 15:47 +0800, Jason Wang wrote:
> > >> > All fields of kvm_io_range were initialized or copied explicitly
>
On Wed, 2015-08-26 at 13:39 +0800, Jason Wang wrote:
>
> On 08/25/2015 11:29 PM, Joe Perches wrote:
> > On Tue, 2015-08-25 at 15:47 +0800, Jason Wang wrote:
> >> > All fields of kvm_io_range were initialized or copied explicitly
> >> > afterwards. So switch to use kmalloc().
> > Is there any compi
On 08/25/2015 11:29 PM, Joe Perches wrote:
> On Tue, 2015-08-25 at 15:47 +0800, Jason Wang wrote:
>> > All fields of kvm_io_range were initialized or copied explicitly
>> > afterwards. So switch to use kmalloc().
> Is there any compiler added alignment padding
> in either structure? If so, those
On 08/25/2015 07:51 PM, Michael S. Tsirkin wrote:
> On Tue, Aug 25, 2015 at 05:05:47PM +0800, Jason Wang wrote:
>> > We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
>> > and another is KVM_FAST_MMIO_BUS. This leads to issue:
>> >
>> > - kvm_io_bus_destroy() knows nothing abo
On 08/25/2015 07:34 PM, Michael S. Tsirkin wrote:
> On Tue, Aug 25, 2015 at 03:47:15PM +0800, Jason Wang wrote:
>> > Cc: Gleb Natapov
>> > Cc: Paolo Bonzini
>> > Cc: Michael S. Tsirkin
>> > Signed-off-by: Jason Wang
>> > ---
>> > arch/x86/kvm/trace.h | 17 +
>> > arch/x86/kvm
On 08/25/2015 07:33 PM, Michael S. Tsirkin wrote:
> On Tue, Aug 25, 2015 at 03:47:14PM +0800, Jason Wang wrote:
>> > We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
>> > and another is KVM_FAST_MMIO_BUS. This leads to issue:
>> >
>> > - kvm_io_bus_destroy() knows nothing abo
To Peter,
Thank you very much!
I'm sorry this is my first kvm mail, and have no experience.
On 2015/8/26 8:40, Huangpeng (Peter) wrote:
You should add kvm maillinglist too.
-邮件原件-
发件人: Jinjian (Ken)
发送时间: 2015年8月25日 21:42
收件人: drjo...@redhat.com; pbonz...@redhat.com
抄送: Huangpeng
You should add kvm maillinglist too.
-邮件原件-
发件人: Jinjian (Ken)
发送时间: 2015年8月25日 21:42
收件人: drjo...@redhat.com; pbonz...@redhat.com
抄送: Huangpeng (Peter); Gonglei (Arei); Zhanghailiang
主题: I'm now looking into kvm-unit-tests and encounted with some problems.
Hi all:
I'm now looking in
> -Original Message-
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Wednesday, August 26, 2015 3:58 AM
> To: Wu, Feng
> Cc: pbonz...@redhat.com; j...@8bytes.org; mtosa...@redhat.com;
> eric.au...@linaro.org; kvm@vger.kernel.org;
> io...@lists.linux-foundation.org; lin
On 8/26/15 6:41 AM, Hansa wrote:
On 26-8-2015 0:33, Wanpeng Li wrote:
On the VM server I issued the command below every eleven minutes:
date >> curltest-file; _
top -b -n 1 | sed -n '7,12p' >> curltest-file; _
curl -o /dev/null -s -w"time_total: %{time_total}\\n"
https://my.domain.com | perl -
On 26-8-2015 0:33, Wanpeng Li wrote:
On the VM server I issued the command below every eleven minutes:
date >> curltest-file; _
top -b -n 1 | sed -n '7,12p' >> curltest-file; _
curl -o /dev/null -s -w"time_total: %{time_total}\\n" https://my.domain.com | perl -pe 'BEGIN
{use POSIX;} print strf
On 8/25/15 11:42 PM, Hansa wrote:
On 24-8-2015 1:26, Wanpeng Li wrote:
On 8/24/15 3:18 AM, Hansa wrote:
On 16-7-2015 13:27, Paolo Bonzini wrote:
On 15/07/2015 22:02, "C. Bröcker" wrote:
What OS is this? Is it RHEL/CentOS? If so, halt_poll_ns will be
in 6.7
which will be out in a few days/we
KVM Team,
We have a user that is experiencing an odd issue when trying to create
VMs on his system which causes the entire host to crash, printing the
following message to the console:
[ERROR] INIT: PANIC: segmentation violation! sleeping for 30 seconds.
We have never seen this issue before, but
On Tue, 2015-08-25 at 16:50 +0800, Feng Wu wrote:
> This patch adds the routine to update IRTE for posted-interrupts
> when guest changes the interrupt configuration.
>
> Signed-off-by: Feng Wu
> ---
> arch/x86/kvm/x86.c | 73
> ++
> 1 file ch
Thanks for writing v2, Wanpeng.
On Mon, Aug 24, 2015 at 11:35 PM, Wanpeng Li wrote:
> There is a downside of halt_poll_ns since poll is still happen for idle
> VCPU which can waste cpu usage. This patch adds the ability to adjust
> halt_poll_ns dynamically.
What testing have you done with these
Hi Thomas,
On 25/08/15 16:46, Thomas Gleixner wrote:
> On Tue, 25 Aug 2015, Marc Zyngier wrote:
>> +static struct static_key supports_deactivate = STATIC_KEY_INIT_TRUE;
>> +
>> #ifndef MAX_GIC_NR
>> #define MAX_GIC_NR 1
>> #endif
>> @@ -137,6 +140,14 @@ static inline unsigned int gic_irq(struc
On Fri, Aug 14, 2015 at 10:51:53PM +0800, Xiao Guangrong wrote:
> Changlog:
> - Use litten endian for DSM method, thanks for Stefan's suggestion
>
> - introduce a new parameter, @configdata, if it's false, Qemu will
> build a static and readonly namespace in memory and use it serveing
> for DS
On Fri, Aug 14, 2015 at 10:52:08PM +0800, Xiao Guangrong wrote:
> Function 4 is used to get Namespace lable size
s/lable/label/
--
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/maj
On Fri, Aug 14, 2015 at 10:52:07PM +0800, Xiao Guangrong wrote:
> @@ -306,6 +354,18 @@ struct dsm_buffer {
> static ram_addr_t dsm_addr;
> static size_t dsm_size;
>
> +struct cmd_out_implemented {
QEMU coding style uses typedef struct {} CamelCase. Please follow this
convention in all user-de
On Fri, Aug 14, 2015 at 10:52:06PM +0800, Xiao Guangrong wrote:
> +#ifdef NVDIMM_DEBUG
> +#define nvdebug(fmt, ...) fprintf(stderr, "nvdimm: " fmt, ## __VA_ARGS__)
> +#else
> +#define nvdebug(...)
> +#endif
The following allows the compiler to check format strings and syntax
check the argument exp
On Fri, Aug 14, 2015 at 10:52:03PM +0800, Xiao Guangrong wrote:
> @@ -257,14 +258,91 @@ static void build_nfit_table(GSList *device_list, char
> *buf)
> }
> }
>
> +struct dsm_buffer {
> +/* RAM page. */
> +uint32_t handle;
> +uint8_t arg0[16];
> +uint32_t arg1;
> +uint3
On Fri, Aug 14, 2015 at 10:52:01PM +0800, Xiao Guangrong wrote:
> The parameter @file is used as backed memory for NVDIMM which is
> divided into two parts if @dataconfig is true:
s/dataconfig/configdata/
> @@ -76,13 +109,87 @@ static void pc_nvdimm_init(Object *obj)
>
Hi Eric,
On 14/08/15 13:35, Eric Auger wrote:
> On 08/14/2015 01:58 PM, Eric Auger wrote:
>> On 07/10/2015 04:21 PM, Andre Przywara wrote:
>>> The LPI configuration and pending tables of the GICv3 LPIs are held
>>> in tables in (guest) memory. To achieve reasonable performance, we
>>> cache this d
On Tue, 25 Aug 2015, Marc Zyngier wrote:
> +static struct static_key supports_deactivate = STATIC_KEY_INIT_TRUE;
> +
> #ifndef MAX_GIC_NR
> #define MAX_GIC_NR 1
> #endif
> @@ -137,6 +140,14 @@ static inline unsigned int gic_irq(struct irq_data *d)
> return d->hwirq;
> }
>
> +static in
On 24-8-2015 1:26, Wanpeng Li wrote:
On 8/24/15 3:18 AM, Hansa wrote:
On 16-7-2015 13:27, Paolo Bonzini wrote:
On 15/07/2015 22:02, "C. Bröcker" wrote:
What OS is this? Is it RHEL/CentOS? If so, halt_poll_ns will be in 6.7
which will be out in a few days/weeks.
Paolo
OK. As said CentOS 6.6.
On Fri, Aug 14, 2015 at 10:52:00PM +0800, Xiao Guangrong wrote:
> NVDIMM reserves all the free range above 4G to do:
> - Persistent Memory (PMEM) mapping
> - implement NVDIMM ACPI device _DSM method
>
> Signed-off-by: Xiao Guangrong
> ---
> hw/i386/pc.c | 12 ++--
> hw/mem/
On Tue, 2015-08-25 at 15:47 +0800, Jason Wang wrote:
> All fields of kvm_io_range were initialized or copied explicitly
> afterwards. So switch to use kmalloc().
Is there any compiler added alignment padding
in either structure? If so, those padding
areas would now be uninitialized and may leak
k
Hi Eric,
On 14/08/15 12:58, Eric Auger wrote:
> On 07/10/2015 04:21 PM, Andre Przywara wrote:
>> The LPI configuration and pending tables of the GICv3 LPIs are held
>> in tables in (guest) memory. To achieve reasonable performance, we
>> cache this data in our own data structures, so we need to sy
On Fri, Aug 14, 2015 at 10:52:00PM +0800, Xiao Guangrong wrote:
> diff --git a/hw/mem/nvdimm/pc-nvdimm.c b/hw/mem/nvdimm/pc-nvdimm.c
> index a53d235..7a270a8 100644
> --- a/hw/mem/nvdimm/pc-nvdimm.c
> +++ b/hw/mem/nvdimm/pc-nvdimm.c
> @@ -24,6 +24,19 @@
>
> #include "hw/mem/pc-nvdimm.h"
>
> +#
On Fri, Aug 14, 2015 at 10:51:59PM +0800, Xiao Guangrong wrote:
> +static void set_file(Object *obj, const char *str, Error **errp)
> +{
> +PCNVDIMMDevice *nvdimm = PC_NVDIMM(obj);
> +
> +if (nvdimm->file) {
> +g_free(nvdimm->file);
> +}
g_free(NULL) is a nop so it's safe to re
Hi Eric,
On 14/08/15 12:58, Eric Auger wrote:
> On 07/10/2015 04:21 PM, Andre Przywara wrote:
>> As the actual LPI number in a guest can be quite high, but is mostly
>> assigned using a very sparse allocation scheme, bitmaps and arrays
>> for storing the virtual interrupt status are a waste of mem
Kevin Hao gmail.com> writes:
>
> We use the wrong number arguments when invoking trace_kvm_stlb_inval,
> and cause the following build error.
> arch/powerpc/kvm/e500_tlb.c: In function 'kvmppc_e500_stlbe_invalidate':
> arch/powerpc/kvm/e500_tlb.c:230: error: too many arguments to
function 'trac
The GICv2 and GICv3 architectures allow an active physical interrupt
to be forwarded to a guest, and the guest to indirectly perform the
deactivation of the interrupt by performing an EOI on the virtual
interrupt (see for example the GICv2 spec, 3.2.1).
This allows some substantial performance imp
Commit 0a4377de3056 ("genirq: Introduce irq_set_vcpu_affinity() to
target an interrupt to a VCPU") added just what we needed at the
lowest level to allow an interrupt to be deactivated by a guest.
When such a request reaches the GIC, it knows it doesn't need to
perform the deactivation anymore, an
So far, GICv3 has been used in with EOImode == 0. The effect of this
mode is to perform the priority drop and the deactivation of the
interrupt at the same time.
While this works perfectly for Linux (we only have a single priority),
it causes issues when an interrupt is forwarded to a guest, and w
So far, GICv2 has been used with EOImode == 0. The effect of this
mode is to perform the priority drop and the deactivation of the
interrupt at the same time.
While this works perfectly for Linux (we only have a single priority),
it causes issues when an interrupt is forwarded to a guest, and when
Commit 0a4377de3056 ("genirq: Introduce irq_set_vcpu_affinity() to
target an interrupt to a VCPU") added just what we needed at the
lowest level to allow an interrupt to be deactivated by a guest.
When such a request reaches the GIC, it knows it doesn't need to
perform the deactivation anymore, an
On Tue, Aug 25, 2015 at 05:05:47PM +0800, Jason Wang wrote:
> We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
> and another is KVM_FAST_MMIO_BUS. This leads to issue:
>
> - kvm_io_bus_destroy() knows nothing about the devices on two buses
> points to a single dev. Which will
On Tue, Aug 25, 2015 at 05:05:47PM +0800, Jason Wang wrote:
> We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
> and another is KVM_FAST_MMIO_BUS. This leads to issue:
>
> - kvm_io_bus_destroy() knows nothing about the devices on two buses
> points to a single dev. Which will
On Tue, Aug 25, 2015 at 05:05:48PM +0800, Jason Wang wrote:
> Cc: Gleb Natapov
> Cc: Paolo Bonzini
> Cc: Michael S. Tsirkin
> Signed-off-by: Jason Wang
> ---
> arch/x86/kvm/trace.h | 17 +
> arch/x86/kvm/vmx.c | 1 +
> arch/x86/kvm/x86.c | 1 +
> 3 files changed, 19 inser
On Tue, Aug 25, 2015 at 03:47:15PM +0800, Jason Wang wrote:
> Cc: Gleb Natapov
> Cc: Paolo Bonzini
> Cc: Michael S. Tsirkin
> Signed-off-by: Jason Wang
> ---
> arch/x86/kvm/trace.h | 17 +
> arch/x86/kvm/vmx.c | 1 +
> arch/x86/kvm/x86.c | 1 +
> 3 files changed, 19 inser
On Tue, Aug 25, 2015 at 03:47:14PM +0800, Jason Wang wrote:
> We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
> and another is KVM_FAST_MMIO_BUS. This leads to issue:
>
> - kvm_io_bus_destroy() knows nothing about the devices on two buses
> points to a single dev. Which will
Hi Eric,
On 13/08/15 16:46, Eric Auger wrote:
>
> On 07/10/2015 04:21 PM, Andre Przywara wrote:
>> The GICv3 Interrupt Translation Service (ITS) uses tables in memory
>> to allow a sophisticated interrupt routing. It features device tables,
>> an interrupt table per device and a table connecting
On Tue, 25 Aug 2015 17:05:47 +0800
Jason Wang wrote:
> We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
> and another is KVM_FAST_MMIO_BUS. This leads to issue:
>
> - kvm_io_bus_destroy() knows nothing about the devices on two buses
> points to a single dev. Which will lead
Hi Eric,
>> diff --git a/virt/kvm/arm/its-emul.c b/virt/kvm/arm/its-emul.c
>> index 659dd39..b498f06 100644
>> --- a/virt/kvm/arm/its-emul.c
>> +++ b/virt/kvm/arm/its-emul.c
>> @@ -32,10 +32,62 @@
>> #include "vgic.h"
>> #include "its-emul.h"
>>
>> +#define BASER_BASE_ADDRESS(x) ((x) & 0xf
Salut Eric,
>> diff --git a/virt/kvm/arm/vgic-v3-emul.c b/virt/kvm/arm/vgic-v3-emul.c
>> index 5269ad1..f5865e7 100644
>> --- a/virt/kvm/arm/vgic-v3-emul.c
>> +++ b/virt/kvm/arm/vgic-v3-emul.c
>> @@ -48,6 +48,7 @@
>> #include
>>
>> #include "vgic.h"
>> +#include "its-emul.h"
>>
>> st
Extend struct pi_desc for VT-d Posted-Interrupts.
Signed-off-by: Feng Wu
---
arch/x86/kvm/vmx.c | 20 ++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 83b7b5c..271dd70 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/
This patch adds some helper functions to manipulate the
Posted-Interrupts Descriptor.
Signed-off-by: Feng Wu
---
arch/x86/kvm/vmx.c | 26 ++
1 file changed, 26 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 271dd70..316f9bf 100644
--- a/arch/x86
This patch adds pi_clear_sn and pi_set_sn to struct kvm_x86_ops,
so we can set/clear SN outside vmx.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 3 +++
arch/x86/kvm/vmx.c | 13 +
2 files changed, 16 insertions(+)
diff --git a/arch/x86/include/asm/kvm_h
VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt.
With VT-d Posted-Interrupts enabled, external interrupts from
direct-assigned devices can be delivered to guests without VMM
intervention when guest is running in non-root mode.
You can find the VT-d Posted-Interrtups Spec. in
This patch defines a new interface kvm_intr_is_single_vcpu(),
which can returns whether the interrupt is for single-CPU or not.
It is used by VT-d PI, since now we only support single-CPU
interrupts, For lowest-priority interrupts, if user configures
it via /proc/irq or uses irqbalance to make it
Make kvm_set_msi_irq() public, we can use this function outside.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 4
arch/x86/kvm/irq_comm.c | 4 ++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kv
Move struct kvm_irq_routing_table from irqchip.c to kvm_host.h,
so we can use it outside of irqchip.c.
Signed-off-by: Feng Wu
---
include/linux/kvm_host.h | 14 ++
virt/kvm/irqchip.c | 10 --
2 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/include/linux
Define an interface to get PI descriptor address from the vCPU structure.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/vmx.c | 11 +++
2 files changed, 13 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/k
This patch adds the registration/unregistration of an
irq_bypass_producer for MSI/MSIx on vfio pci devices.
v6:
- Make the add_consumer and del_consumer callbacks static
- Remove pointless INIT_LIST_HEAD to 'vdev->ctx[vector].producer.node)'
- Use dev_info instead of WARN_ON() when irq_bypass_regi
This patch updates the Posted-Interrupts Descriptor when vCPU
is preempted.
sched out:
- Set 'SN' to suppress furture non-urgent interrupts posted for
the vCPU.
sched in:
- Clear 'SN'
- Change NDST if vCPU is scheduled to a different CPU
- Set 'NV' to POSTED_INTR_VECTOR
Signed-off-by: Feng Wu
-
Define two weak arch callbacks so that archs that don't need
them don't need define them.
Signed-off-by: Feng Wu
---
virt/kvm/eventfd.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index d7a230f..f3050b9 100644
--- a/virt/kvm/eventfd.c
+
This patch adds the routine to update IRTE for posted-interrupts
when guest changes the interrupt configuration.
Signed-off-by: Feng Wu
---
arch/x86/kvm/x86.c | 73 ++
1 file changed, 73 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86
This patch adds an arch specific hooks 'arch_update' in
'struct kvm_kernel_irqfd'. On Intel side, it is used to
update the IRTE when VT-d posted-interrupts is used.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/x86.c | 5 +
include/linux/kvm_h
Enable irq bypass manager for vfio PCI devices.
Signed-off-by: Feng Wu
---
drivers/vfio/pci/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig
index 579d83b..02912f1 100644
--- a/drivers/vfio/pci/Kconfig
+++ b/drivers/vfio/pci/Kconfig
Implement the following callbacks for x86:
- kvm_arch_irq_bypass_add_producer
- kvm_arch_irq_bypass_del_producer
- kvm_arch_irq_bypass_stop: dummy callback
- kvm_arch_irq_bypass_resume: dummy callback
and set CONFIG_HAVE_KVM_IRQ_BYPASS for x86.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/k
This patch updates the Posted-Interrupts Descriptor when vCPU
is blocked.
pre-block:
- Add the vCPU to the blocked per-CPU list
- Set 'NV' to POSTED_INTR_WAKEUP_VECTOR
post-block:
- Remove the vCPU from the per-CPU list
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 5 ++
arch/
All fields of kvm_io_range were initialized or copied explicitly
afterwards. So switch to use kmalloc().
Cc: Gleb Natapov
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by: Jason Wang
---
virt/kvm/kvm_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/virt/kvm
We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
and another is KVM_FAST_MMIO_BUS. This leads to issue:
- kvm_io_bus_destroy() knows nothing about the devices on two buses
points to a single dev. Which will lead double free [1] during exit.
- wildcard eventfd ignores data len
Cc: Gleb Natapov
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by: Jason Wang
---
arch/x86/kvm/trace.h | 17 +
arch/x86/kvm/vmx.c | 1 +
arch/x86/kvm/x86.c | 1 +
3 files changed, 19 insertions(+)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 4eae7
On 08/25/2015 04:20 PM, Cornelia Huck wrote:
> On Tue, 25 Aug 2015 15:47:14 +0800
> Jason Wang wrote:
>
>> diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
>> index 9ff4193..95f2901 100644
>> --- a/virt/kvm/eventfd.c
>> +++ b/virt/kvm/eventfd.c
>> @@ -762,13 +762,15 @@ ioeventfd_check_collis
Currently, we don't support urgent interrupt, all interrupts
are recognized as non-urgent interrupt, so we cannot post
interrupts when 'SN' is set.
If the vcpu is in guest mode, it cannot have been scheduled out,
and that's the only case when SN is set currently, warning if
SN is set.
Signed-off-
Enable VT-d Posted-Interrtups and add a command line
parameter for it.
Signed-off-by: Feng Wu
---
Documentation/kernel-parameters.txt | 1 +
drivers/iommu/irq_remapping.c | 12
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/Documentation/kernel-parameters.txt
On Tue, 25 Aug 2015 15:47:14 +0800
Jason Wang wrote:
> diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
> index 9ff4193..95f2901 100644
> --- a/virt/kvm/eventfd.c
> +++ b/virt/kvm/eventfd.c
> @@ -762,13 +762,15 @@ ioeventfd_check_collision(struct kvm *kvm, struct
> _ioeventfd *p)
> ret
All fields of kvm_io_range were initialized or copied explicitly
afterwards. So switch to use kmalloc().
Cc: Gleb Natapov
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by: Jason Wang
---
virt/kvm/kvm_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/virt/kvm
Cc: Gleb Natapov
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by: Jason Wang
---
arch/x86/kvm/trace.h | 17 +
arch/x86/kvm/vmx.c | 1 +
arch/x86/kvm/x86.c | 1 +
3 files changed, 19 insertions(+)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 4eae7
We register wildcard mmio eventfd on two buses, one for KVM_MMIO_BUS
and another is KVM_FAST_MMIO_BUS. This leads to issue:
- kvm_io_bus_destroy() knows nothing about the devices on two buses
points to a single dev. Which will lead double free [1] during exit.
- wildcard eventfd ignores data len
On 08/25/2015 11:04 AM, Jason Wang wrote:
[...]
> @@ -900,10 +899,11 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct
> kvm_ioeventfd *args)
> if (!p->wildcard && p->datamatch != args->datamatch)
> continue;
>
> -
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