Il 25/07/2012 00:33, Nicholas A. Bellinger ha scritto:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Normally host notifiers are only used together with vhost-net in KVM
mode. It is occassionally useful to use vhost with TCG mode, mainly for
testing and development. This isn't hard to
Il 25/07/2012 00:33, Nicholas A. Bellinger ha scritto:
+int event_notifier_notify(EventNotifier *e)
+{
+uint64_t value = 1;
+int r;
+
+assert(event_notifier_valid(e));
+r = write(e-fd, value, sizeof(value));
+if (r 0) {
+return -errno;
+}
+assert(r
Il 25/07/2012 00:34, Nicholas A. Bellinger ha scritto:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
This patch adds a new type of host device that drives the vhost_scsi
device. The syntax to add vhost-scsi is:
qemu -vhost-scsi id=vhost-scsi0,wwpn=...,tpgt=123
The virtio-scsi
Il 25/07/2012 00:34, Nicholas A. Bellinger ha scritto:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
This patch starts and stops vhost as the virtio device transitions
through its status phases. Vhost can only be started once the guest
reports its driver has successfully initialized,
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
postpone the reclaimer till they have done with it.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
Il 25/07/2012 09:01, Paolo Bonzini ha scritto:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
This patch starts and stops vhost as the virtio device transitions
through its status phases. Vhost can only be started once the guest
reports its driver has successfully initialized, which
Il 25/07/2012 00:34, Nicholas A. Bellinger ha scritto:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Begin adding vhost support by opening /dev/vhost-scsi.
(v2: Drop legacy -vhost_vqs[] usage)
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
hw/e1000.c | 15 +--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/hw/e1000.c
Il 25/07/2012 09:03, Stefan Hajnoczi ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
It's not clear how to me. The only reference to devices from an
iohandler/bh/timer can be in the opaque. Now, if you have a
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
@@ -3396,13 +3420,25 @@ void cpu_physical_memory_rw(target_phys_addr_t addr,
uint8_t *buf,
uint32_t val;
target_phys_addr_t page;
MemoryRegionSection *section;
+Object *bk;
while (len 0) {
On Wed, Jul 25, 2012 at 3:43 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
@@ -3396,13 +3420,25 @@ void cpu_physical_memory_rw(target_phys_addr_t addr,
uint8_t *buf,
uint32_t val;
target_phys_addr_t page;
On Wed, Jul 25, 2012 at 3:37 PM, Paolo Bonzini pbonz...@redhat.com wrote:
Il 25/07/2012 09:03, Stefan Hajnoczi ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
It's not clear how to me. The only reference to devices from an
On Wed, Jul 25, 2012 at 3:03 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
postpone the reclaimer till they have
Il 25/07/2012 10:16, liu ping fan ha scritto:
It's not clear how to me. The only reference to devices from an
iohandler/bh/timer can be in the opaque. Now, if you have a
iohandler/bh/timer whose opaque is a DeviceState, you should bump the
refcount before setting it up, and unref after
On 07/25/2012 12:00 AM, a...@linux-foundation.org wrote:
The patch titled
Subject: ppc: e500_tlb memset clears nothing
has been added to the -mm tree. Its filename is
ppc-e500_tlb-memset-clears-nothing.patch
The kvm tree is maintained. Alex, please pick up this patch; I guess
On (Wed) 25 Jul 2012 [10:06:37], Rusty Russell wrote:
On Tue, 24 Jul 2012 15:01:59 +0200, Sasha Levin levinsasha...@gmail.com
wrote:
virtio on it's own was introduced to help solve the fragmentation
around virtualized devices, so I don't think that the main purpose of
doing virtio drivers
On 25.07.2012, at 10:32, Avi Kivity a...@redhat.com wrote:
On 07/25/2012 12:00 AM, a...@linux-foundation.org wrote:
The patch titled
Subject: ppc: e500_tlb memset clears nothing
has been added to the -mm tree. Its filename is
ppc-e500_tlb-memset-clears-nothing.patch
The kvm
Il 25/07/2012 05:31, Liu Ping Fan ha scritto:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
rwlock:
qemu_device_tree_mutex
rd side:
--device_del(destruction of device will be postphoned until unplug
ack from guest),
--pci hot-unplug
--iteration (qdev_reset_all)
wr side:
Il 25/07/2012 10:12, liu ping fan ha scritto:
+qemu_rwlock_rdlock_devtree();
section = phys_page_find(page TARGET_PAGE_BITS);
+if (!(memory_region_is_ram(section-mr) ||
+memory_region_is_romd(section-mr)) !is_write) {
+bk =
On 07/25/2012 12:00 PM, Alexander Graf wrote:
On 25.07.2012, at 10:32, Avi Kivity a...@redhat.com wrote:
On 07/25/2012 12:00 AM, a...@linux-foundation.org wrote:
The patch titled
Subject: ppc: e500_tlb memset clears nothing
has been added to the -mm tree. Its filename is
On 2012-07-24 22:20, Nicholas A. Bellinger wrote:
On Tue, 2012-07-24 at 09:57 +0200, Jan Kiszka wrote:
On 2012-07-24 09:42, Nicholas A. Bellinger wrote:
Hi Anthony, Stefan QEMU folks,
SNIP
However, thus far I've not been able to get virtio-scsi - tcm_vhost
I/O to actually work against
Yeah, not sure what's going on here. Alan sent me the patch a while
back in a private mail, so I asked him to resend it to the ML, so
it's available for review. Next thing that happens is this mail a few
weeks later.
I don't recall seeing your your reply and I really wasn't sure where it
I wonder how many such bugs a memzero()/bzero() will prevent.
If the compiler-foo is possible with gcc then a 0 length constant
memset warning and a warning if the set value is 255 would both
probably be useful.
Fortunately a lot of other validation/verification tools do pick it up
already.
On 07/25/2012 01:12 PM, Alan Cox wrote:
I wonder how many such bugs a memzero()/bzero() will prevent.
If the compiler-foo is possible with gcc then a 0 length constant
memset warning and a warning if the set value is 255 would both
probably be useful.
It's pretty easy with BUILD_BUG_ON(),
On 07/25/2012 06:31 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
acquire device's refcnt with qemu_device_tree_mutex rwlock, so we
can safely handle it when mmio dispatch.
If in radix-tree, leaf is subpage, then move further step to acquire
opaque which is the
On 07/25/2012 06:31 AM, Liu Ping Fan wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
When guest confirm the removal of device, we should
--unmap from MemoryRegion view
--isolated from device tree view
+
+void qdev_unplug_ack(DeviceState *dev, Error **errp)
+{
+
On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
On Mon, 2012-07-23 at 18:56 -0700, Greg Kroah-Hartman wrote:
On Tue, Jul 24, 2012 at 01:26:20AM +, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@linux-iscsi.org
As requested by Anthony, here is a
On 07/25/2012 01:58 PM, Avi Kivity wrote:
while (len 0) {
page = addr TARGET_PAGE_MASK;
l = (page + TARGET_PAGE_SIZE) - addr;
if (l len)
l = len;
+
+qemu_rwlock_rdlock_devtree();
section = phys_page_find(page
setup_syscalls_segments() calls get_segment() and than overwrites all
but one of the structure fields and this one should also be overwritten
anyway, so we can drop call to get_segment() and avoid a couple of vmreads
on vmx. Also drop zeroing ss/cs structures since most of the fields are
set
On 07/24/2012 11:45 PM, Nicholas A. Bellinger wrote:
diff --git a/drivers/vhost/tcm_vhost.h b/drivers/vhost/tcm_vhost.h
index e942df9..3d5378f 100644
--- a/drivers/vhost/tcm_vhost.h
+++ b/drivers/vhost/tcm_vhost.h
@@ -80,7 +80,17 @@ struct tcm_vhost_tport {
#include linux/vhost.h
On Tue, Jul 3, 2012 at 12:07 PM, Avi Kivity a...@redhat.com wrote:
On 07/03/2012 12:01 PM, Christoffer Dall wrote:
Provides complete world-switch implementation to switch to other guests
running in non-secure modes. Includes Hyp exception handlers that
capture necessary exception information
Il 25/07/2012 15:26, Boaz Harrosh ha scritto:
In SCSI land most LLDs should support chaining just by virtu of using the
for_each_sg macro. That all it takes. Your code above does support it.
Yes, it supports it but still has to undo them before passing to virtio.
What my LLD does is add a
Hi Linus,
This series includes the VFIO userspace driver interface for the
3.6 kernel merge window. This driver is intended to provide a
secure interface for device access using IOMMU protection for
applications like assignment of physical devices to virtual
machines. Qemu will be the first
VFIO is a secure user level driver for use with both virtual machines
and user level drivers. VFIO makes use of IOMMU groups to ensure the
isolation of devices in use, allowing unprivileged user access. It's
intended that VFIO will replace KVM device assignment and UIO drivers
(in cases where
This VFIO IOMMU backend is designed primarily for AMD-Vi and Intel
VT-d hardware, but is potentially usable by anything supporting
similar mapping functionality. We arbitrarily call this a Type1
backend for lack of a better name. This backend has no IOVA
or host memory mapping restrictions for
On 07/25/2012 05:17 PM, Paolo Bonzini wrote:
Il 25/07/2012 15:26, Boaz Harrosh ha scritto:
In SCSI land most LLDs should support chaining just by virtu of using the
for_each_sg macro. That all it takes. Your code above does support it.
Yes, it supports it but still has to undo them before
Il 25/07/2012 17:28, Boaz Harrosh ha scritto:
1) what I get is a scsi_cmnd which contains an N-element scatterlist.
2) virtio-scsi has to build the packet that is passed to the hardware
(it does not matter that the hardware is virtual). This packet (per
virtio-scsi spec) has an N+1-element
On 07/25/2012 08:43 PM, Paolo Bonzini wrote:
Il 25/07/2012 17:28, Boaz Harrosh ha scritto:
1) what I get is a scsi_cmnd which contains an N-element scatterlist.
2) virtio-scsi has to build the packet that is passed to the hardware
(it does not matter that the hardware is virtual). This
On 07/25/2012 08:03 PM, Alex Williamson wrote:
This adds PCI based device assignment to Qemu using the Linux VFIO
userspace driver interface. After setting up VFIO device access,
devices can be added to Qemu guests using the vfio-pci device
option:
-device vfio-pci,host=1:10.1,id=net0
https://bugzilla.kernel.org/show_bug.cgi?id=43328
Florian Mickler flor...@mickler.org changed:
What|Removed |Added
CC||flor...@mickler.org
On Wed, 2012-07-25 at 22:30 +0300, Avi Kivity wrote:
On 07/25/2012 08:03 PM, Alex Williamson wrote:
This adds PCI based device assignment to Qemu using the Linux VFIO
userspace driver interface. After setting up VFIO device access,
devices can be added to Qemu guests using the vfio-pci
Il 25/07/2012 21:16, Boaz Harrosh ha scritto:
The picture confused me. It looked like the first element is the
virtio_scsi_cmd_req
not an sgilist-element that points to the struct's buffer.
In that case then yes your plan of making a two-elements fragment that points
to the
original
On 07/25/2012 11:06 PM, Paolo Bonzini wrote:
Il 25/07/2012 21:16, Boaz Harrosh ha scritto:
The picture confused me. It looked like the first element is the
virtio_scsi_cmd_req
not an sgilist-element that points to the struct's buffer.
In that case then yes your plan of making a
On Wed, 2012-07-25 at 16:10 +0300, Avi Kivity wrote:
On 07/24/2012 11:45 PM, Nicholas A. Bellinger wrote:
diff --git a/drivers/vhost/tcm_vhost.h b/drivers/vhost/tcm_vhost.h
index e942df9..3d5378f 100644
--- a/drivers/vhost/tcm_vhost.h
+++ b/drivers/vhost/tcm_vhost.h
@@ -80,7
On Wed, 2012-07-25 at 12:55 +0100, Stefan Hajnoczi wrote:
On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
On Mon, 2012-07-23 at 18:56 -0700, Greg Kroah-Hartman wrote:
On Tue, Jul 24, 2012 at 01:26:20AM +, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger
On Wed, Jul 25, 2012 at 02:14:50PM -0700, Nicholas A. Bellinger wrote:
On Wed, 2012-07-25 at 12:55 +0100, Stefan Hajnoczi wrote:
On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
On Mon, 2012-07-23 at 18:56 -0700, Greg Kroah-Hartman wrote:
On Tue, Jul 24, 2012 at
On Fri, Jul 20, 2012 at 04:29:08PM -0500, Scott Wood wrote:
On 07/20/2012 12:00 AM, Bharat Bhushan wrote:
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer are used for watchdog emulation and emulates
On 07/25/2012 03:37 PM, Marcelo Tosatti wrote:
On Fri, Jul 20, 2012 at 04:29:08PM -0500, Scott Wood wrote:
On 07/20/2012 12:00 AM, Bharat Bhushan wrote:
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer
Alexander Graf ag...@suse.de wrote:
After merging the register type check patches from Ben's tree, the
hv enabled booke implementation ceased to compile.
This patch fixes things up so everyone's happy again.
Is there a defconfig which catches this?
Mikey
Signed-off-by: Alexander Graf
On Wed, Jul 25, 2012 at 06:55:16PM -0500, Scott Wood wrote:
On 07/25/2012 03:37 PM, Marcelo Tosatti wrote:
On Fri, Jul 20, 2012 at 04:29:08PM -0500, Scott Wood wrote:
On 07/20/2012 12:00 AM, Bharat Bhushan wrote:
This patch adds the watchdog emulation in KVM. The watchdog
emulation is
On Wed, 2012-07-25 at 23:35 +0100, Stefan Hajnoczi wrote:
On Wed, Jul 25, 2012 at 02:14:50PM -0700, Nicholas A. Bellinger wrote:
On Wed, 2012-07-25 at 12:55 +0100, Stefan Hajnoczi wrote:
On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
On Mon, 2012-07-23 at 18:56
Changelog:
correct some typos in the title/changelog.
Currently, kvm allocates some pages (e.g: bad_page/fault_page) and use them
as error indicators, it wastes memory and is not good for scalability.
Base on Avi's suggestion, in this patchset, we introduce some error codes
instead of these
The current code depends on the fact that fault_page is the normal page,
however, we will use the error code instead of these dummy pages in the
later patch, so we use kvm_release_pfn_clean to release pfn which will
release the error code properly
Signed-off-by: Xiao Guangrong
In kvm_async_pf_wakeup_all, it uses bad_page to generate broadcast wakeup,
and uses put_page to release bad_page, the work depends on the fact that
bad_page is the normal page. But we will use the error code instead of
bad_page, so use kvm_release_page_clean to release the page which will
release
Currently, kvm allocates some pages and use them as error indicators,
it wastes memory and is not good for scalability
Base on Avi's suggestion, we use the error codes instead of these pages
to indicate the error conditions
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
No need split mmio read region into 8-bits pieces since we do it in
emulator_read_write_onepage
Changelog:
Add a WARN_ON to check read-cache overflow
Acked-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
arch/x86/kvm/emulate.c | 31
Current kvmppc_booke_handlers uses the same macro (KVM_HANDLER) and
all handlers are considered to be the same size. This will not be
the case if we want to use different macros for different handlers.
This patch improves the kvmppc_booke_handler so that it can
support different macros for
This patch adds:
1) KVM debug handler added for e500v2.
2) Guest debug by qemu gdb stub.
Signed-off-by: Liu Yu yu@freescale.com
Signed-off-by: Varun Sethi varun.se...@freescale.com
[bharat.bhus...@freescale.com: Substantial changes]
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
On Fri, Jul 20, 2012 at 04:29:08PM -0500, Scott Wood wrote:
On 07/20/2012 12:00 AM, Bharat Bhushan wrote:
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer are used for watchdog emulation and emulates
On 07/25/2012 03:37 PM, Marcelo Tosatti wrote:
On Fri, Jul 20, 2012 at 04:29:08PM -0500, Scott Wood wrote:
On 07/20/2012 12:00 AM, Bharat Bhushan wrote:
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer
Alexander Graf ag...@suse.de wrote:
After merging the register type check patches from Ben's tree, the
hv enabled booke implementation ceased to compile.
This patch fixes things up so everyone's happy again.
Is there a defconfig which catches this?
Mikey
Signed-off-by: Alexander Graf
On Wed, Jul 25, 2012 at 06:55:16PM -0500, Scott Wood wrote:
On 07/25/2012 03:37 PM, Marcelo Tosatti wrote:
On Fri, Jul 20, 2012 at 04:29:08PM -0500, Scott Wood wrote:
On 07/20/2012 12:00 AM, Bharat Bhushan wrote:
This patch adds the watchdog emulation in KVM. The watchdog
emulation is
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
linux-headers/asm-powerpc/kvm.h | 33 +
1 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/linux-headers/asm-powerpc/kvm.h b/linux-headers/asm-powerpc/kvm.h
index 1bea4d8..da71c84 100644
This patch add support for guest debugging with qemu gdbstub.
Now hardware breakpoint and watchpoint can be set/unset. This
patch also support for software beakpoint.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
hw/ppc/e500.c|3 +
target-ppc/kvm.c | 242
Current kvmppc_booke_handlers uses the same macro (KVM_HANDLER) and
all handlers are considered to be the same size. This will not be
the case if we want to use different macros for different handlers.
This patch improves the kvmppc_booke_handler so that it can
support different macros for
This patch adds:
1) KVM debug handler added for e500v2.
2) Guest debug by qemu gdb stub.
Signed-off-by: Liu Yu yu@freescale.com
Signed-off-by: Varun Sethi varun.se...@freescale.com
[bharat.bhus...@freescale.com: Substantial changes]
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
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