similar to: [patch 1/2] xen-gntdev: return -EFAULT on copy_to_user failure

Add an highmem parameter to alloc_xenballooned_pages, to allow callers to request lowmem or highmem pages. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- drivers/xen/balloon.c | 12 ++++++++---- drivers/xen/gntdev.c | 2 +- include/xen/balloon.h | 3 ++- 3 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/xen/balloon.c

We should unlock here and also decrement the number of &map->users. Signed-off-by: Dan Carpenter <error27 at gmail.com> --- I'm not very familiar with this code. Please review carefully. diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 017ce60..b0f9e8f 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -662,7 +662,7 @@ static int gntdev_mmap(struct

We should unlock here and also decrement the number of &map->users. Signed-off-by: Dan Carpenter <error27 at gmail.com> --- I'm not very familiar with this code. Please review carefully. diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 017ce60..b0f9e8f 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -662,7 +662,7 @@ static int gntdev_mmap(struct

We should unlock here and also decrement the number of &map->users. Signed-off-by: Dan Carpenter <error27 at gmail.com> --- I'm not very familiar with this code. Please review carefully. diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 017ce60..b0f9e8f 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -662,7 +662,7 @@ static int gntdev_mmap(struct

The only time when granted pages need to be treated specially is when using Xen''s PTE modification for grant mappings owned by another domain. Otherwise, the area does not require VM_DONTCOPY and VM_PFNMAP, since it can be accessed just like any other page of RAM. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> --- drivers/xen/gntalloc.c | 14 ++++++++++++--

Since when we are using the m2p_override it is not true anymore that the mmap''ed area doesn''t have corresponsing struct pages. Removing the VM_PFNMAP flag makes get_user_pages work on the mmap''ed user vma. An example test case would be using a Xen userspace block backend (QDISK) on a file on NFS using O_DIRECT. The patch should be backported back to 2.6.38.

On Wed, Oct 30, 2019 at 12:55:37PM -0400, Boris Ostrovsky wrote: > On 10/28/19 4:10 PM, Jason Gunthorpe wrote: > > From: Jason Gunthorpe <jgg at mellanox.com> > > > > gntdev simply wants to monitor a specific VMA for any notifier events, > > this can be done straightforwardly using mmu_range_notifier_insert() over > > the VMA's VA range. > > >

This flag controls the meaning of gnttab_map_grant_ref.host_addr and specifies that the field contains a refernce to the pte entry to be used to perform the mapping. Therefore move the use of this flag to the point at which we actually use a reference to the pte instead of something else, splitting up the usage of the flag in this way is confusing and potentially error prone. The other flags are

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> diff -r cfb49fe940fd -r 81f75ed45ec2 tools/hotplug/Linux/init.d/xencommons --- a/tools/hotplug/Linux/init.d/xencommons Tue Aug 16 16:56:16 2011 -0700 +++ b/tools/hotplug/Linux/init.d/xencommons Tue Aug 16 17:05:18 2011 -0700 @@ -29,12 +29,18 @@ XENCONSOLED_PIDFILE=/var/run/xenconsoled.pid shopt -s extglob -if [

From: Jason Gunthorpe <jgg at mellanox.com> gntdev simply wants to monitor a specific VMA for any notifier events, this can be done straightforwardly using mmu_range_notifier_insert() over the VMA's VA range. The notifier should be attached until the original VMA is destroyed. It is unclear if any of this is even sane, but at least a lot of duplicate code is removed. Cc: Oleksandr

On Mon, Oct 28, 2019 at 05:10:25PM -0300, Jason Gunthorpe wrote: > From: Jason Gunthorpe <jgg at mellanox.com> > > DMA_SHARED_BUFFER can not be enabled by the user (it represents a library > set in the kernel). The kconfig convention is to use select for such > symbols so they are turned on implicitly when the user enables a kconfig > that needs them. > > Otherwise

This patch adds the ability to set the number of slots that may be used for mapping grant references, using the gntdev user-space grant reference mapping driver. Signed-off-by: Derek Murray <Derek.Murray@cl.cam.ac.uk> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

As usual, written and tested on 2.6.24-rc4 and made apply to the 2.6.18 tree without further testing. Signed-off-by: Jan Beulich <jbeulich@novell.com> Index: head-2007-12-11/drivers/xen/Kconfig =================================================================== --- head-2007-12-11.orig/drivers/xen/Kconfig 2007-10-18 16:15:28.000000000 +0200 +++ head-2007-12-11/drivers/xen/Kconfig

Since we are using the m2p_override we do have struct pages corresponding to the user vma mmap''ed by gntdev. Removing the VM_PFNMAP flag makes get_user_pages work on that vma. An example test case would be using a Xen userspace block backend (QDISK) on a file on NFS using O_DIRECT. The patch should be backported back to 2.6.38. Signed-off-by: Stefano Stabellini

Hi, Looks like this patch broke automated builds due to a lack of a matching line in the defconfigs. Below is a patch that makes this a module for xen and xen0, unconfigured for xenU. That might not be the best thing here however. Thanks kurt Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com> ===================================================== diff -r cd744c5ec950

On 11/1/19 1:48 PM, Jason Gunthorpe wrote: > On Wed, Oct 30, 2019 at 12:55:37PM -0400, Boris Ostrovsky wrote: >> On 10/28/19 4:10 PM, Jason Gunthorpe wrote: >>> From: Jason Gunthorpe <jgg at mellanox.com> >>> >>> gntdev simply wants to monitor a specific VMA for any notifier events, >>> this can be done straightforwardly using

On 10/28/19 4:10 PM, Jason Gunthorpe wrote: > From: Jason Gunthorpe <jgg at mellanox.com> > > gntdev simply wants to monitor a specific VMA for any notifier events, > this can be done straightforwardly using mmu_range_notifier_insert() over > the VMA's VA range. > > The notifier should be attached until the original VMA is destroyed. > > It is unclear if any of

On 01.11.19 19:26, Jason Gunthorpe wrote: > On Mon, Oct 28, 2019 at 05:10:25PM -0300, Jason Gunthorpe wrote: >> From: Jason Gunthorpe <jgg at mellanox.com> >> >> DMA_SHARED_BUFFER can not be enabled by the user (it represents a library >> set in the kernel). The kconfig convention is to use select for such >> symbols so they are turned on implicitly when the

Change xen/gntdev to default m so that when CONFIG_XEN is enabled the gntdev driver will be compiled as a module. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 07bec09..af5d986 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -76,6 +76,7 @@ config XEN_XENBUS_FRONTEND config XEN_GNTDEV

Hallo *! I have a board SE7501HG2. - On 2.6.18 ipmitool works succefull. On Xen-3.1 (2.6.18) ipmitool say: # ipmitool sensor WARNING: Unknown SDR repository version 0x00 SDR record id 0x0000: invalid length 0 (see thread [ipmitool-devel] Unknown SDR version) - On page [4] as written: ipmitool -> BMC ---> i2c/smbus ''-> SDR - On Thread [9] was written: