rx-status is an int16_t, print it using %d rather than %u in order to
have a meaningful value when the field is negative.
Also use %d rather than %x for rx-offset.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Konrad Rzeszutek Wilk
david.vra...@citrix.com
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: net...@vger.kernel.org
[1] http://lkml.org/lkml/2015/5/14/533
Julien Grall (2):
net/xen-netfront: Correct printf format in xennet_get_responses
net/xen-netback: Remove unused
then: What about xen_remap_domain_mfn_array? I
guess we don't support that use case on 64K guests? If so, I would
appreaciate an assert and/or an error message.
See https://lkml.org/lkml/2015/5/14/563
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this will be really useful. Feel free to send a patch
for it.
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Please read the FAQ at http
Hi,
On 23/06/15 14:25, Stefano Stabellini wrote:
On Thu, 14 May 2015, Julien Grall wrote:
From: Julien Grall julien.gr...@linaro.org
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell
Hi David,
On 19/05/15 16:39, David Vrabel wrote:
On 14/05/15 18:01, Julien Grall wrote:
The hypercall interface (as well as the toolstack) is always using 4KB
page granularity. When the toolstack is asking for mapping a series of
guest PFN in a batch, it expects to have the page map
The variables old_req_cons and ring_slots_used are assigned but never
used since commit 1650d5455bd2dc6b5ee134bd6fc1a3236c266b5b xen-netback:
always fully coalesce guest Rx packets.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Wei Liu wei.l...@citrix.com
Cc: Ian Campbell
rx-status is an int16_t, print it using %d rather than %u in order to
have a meaningful value when the field is negative.
Also use %u rather than %x for rx-offset.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Konrad Rzeszutek Wilk
Hi,
The first 2 patches was originally part of the the Xen 64KB series [1].
Although, I think they can go, assuming everything will be acked/reviewed,
without waiting the rest of the 64KB series.
The third patch as been added in this version.
Regards,
Julien Grall (3):
net/xen-netfront
Append 0x to all %x in order to avoid while reading when there is other
decimal value in the log.
Also replace some of the hexadecimal print to decimal to uniformize the
format with netfront.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Wei Liu wei.l...@citrix.com
Cc: Ian Campbell
The variables old_req_cons and ring_slots_used are assigned but never
used since commit 1650d5455bd2dc6b5ee134bd6fc1a3236c266b5b xen-netback:
always fully coalesce guest Rx packets.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Wei Liu wei.l...@citrix.com
Cc: Ian Campbell
rx-status is an int16_t, print it using %d rather than %u in order to
have a meaningful value when the field is negative.
Also use %u rather than %x for rx-offset.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Konrad Rzeszutek Wilk
Prepend 0x to all %x in order to avoid confusion while reading when there is
other decimal value in the log.
Also replace some of the hexadecimal print to decimal to uniformize the
format with netfront.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Ian Campbell ian.campb
david.vra...@citrix.com
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: net...@vger.kernel.org
[1] http://lkml.org/lkml/2015/5/14/533
Julien Grall (3):
net/xen-netfront: Correct printf format in xennet_get_responses
net/xen-netback: Remove unused
Hi Ian,
On 17/06/2015 10:25, Ian Campbell wrote:
On Tue, 2015-06-16 at 20:10 +0100, Julien Grall wrote:
Append 0x to all %x in order to avoid while reading when there is other
decimal value in the log.
Also replace some of the hexadecimal print to decimal to uniformize the
format
SPP was used by the grant table v2 code which has been removed in
commit 438b33c7145ca8a5131a30c36d8f59bce119a19a xen/grant-table:
remove support for V2 tables.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Konrad Rzeszutek Wilk konrad.w
From: Julien Grall julien.gr...@linaro.org
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Roger Pau Monné roger@citrix.com
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: David Vrabel david.vra...@citrix.com
---
Changes
From: Julien Grall julien.gr...@linaro.org
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
arch/arm/include/asm/xen/page.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen
don't use it later.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Wei Liu wei.l...@citrix.com
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
---
Changes in v2:
- Remove the cast
stefano.stabell...@eu.citrix.com
Cc: Wei Liu wei.l...@citrix.com
Julien Grall (7):
xen: Include xen/page.h rather than asm/xen/page.h
xen/xenbus: client: Fix call of virt_to_mfn in xenbus_grant_ring
xen/grant-table: Remove unused macro SPP
arm/xen: Drop duplicate define mfn_to_virt
block
Using xen/page.h will be necessary later for using common xen page
helpers.
As xen/page.h already include asm/xen/page.h, always use the later.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Stefano Stabellini stefano.stabell
From: Julien Grall julien.gr...@linaro.org
Make the code less confusing to read now that Linux may not have the
same page size as Xen.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Roger Pau Monné roger@citrix.com
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
From: Julien Grall julien.gr...@linaro.org
Since commit b764915 xen-blkfront: use a different scatterlist for each
request, biovec has been replaced by scatterlist when copying back the
data during a completion request.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Roger Pau
On 04/06/15 13:46, David Vrabel wrote:
On 04/06/15 13:45, Julien Grall wrote:
On 03/06/15 18:06, Joe Perches wrote:
On Wed, 2015-06-03 at 17:55 +0100, Julien Grall wrote:
rx-status is an int16_t, print it using %d rather than %u in order to
have a meaningful value when the field is negative
On 03/06/15 18:06, Joe Perches wrote:
On Wed, 2015-06-03 at 17:55 +0100, Julien Grall wrote:
rx-status is an int16_t, print it using %d rather than %u in order to
have a meaningful value when the field is negative.
[]
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
netdevice using
ipv6 and bridge.
Spotted while trying to destroy a Xen guest on the upstream Linux:
unregister_netdevice: waiting for vif1.0 to become free. Usage count = 1
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Bernhard Thaler bernhard.tha...@wvnet.at
Cc: Pablo Neira Ayuso pa
Hi,
On 03/07/15 21:42, Florian Westphal wrote:
Julien Grall julien.gr...@citrix.com wrote:
The commit efb6de9b4ba0092b2c55f6a52d16294a8a698edd netfilter: bridge:
forward IPv6 fragmented packets introduced a new function
br_validate_ipv6 which take a reference on the inet6 device. Although
On 06/07/15 12:19, Florian Westphal wrote:
Julien Grall julien.gr...@citrix.com wrote:
On 03/07/15 21:42, Florian Westphal wrote:
I think it makes more sense to use __in6_dev_get() instead which doesn't
take a reference.
__in6_dev_get requires to hold rcu_read_lock or RTNL. My knowledge
On 19/05/15 23:56, Julien Grall wrote:
If you're wgetting from another host, I would suggest wgetting from Dom0
to limit the problem between Dom0 and DomU.
Thanks to Wei, I was able to narrow the problem. It looks like the
problem is not coming from netback but somewhere else down
On 20/05/15 09:26, Wei Liu wrote:
On Tue, May 19, 2015 at 11:56:39PM +0100, Julien Grall wrote:
diff --git a/drivers/net/xen-netback/common.h
b/drivers/net/xen-netback/common.h
index 0eda6e9..c2a5402 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
On 20/05/15 15:56, Roger Pau Monné wrote:
El 20/05/15 a les 15.21, Julien Grall ha escrit:
Hi,
On 20/05/15 14:10, Bob Liu wrote:
---
drivers/block/xen-blkback/blkback.c | 12
drivers/block/xen-blkback/common.h | 3 +-
drivers/block/xen-blkback/xenbus.c | 85
is
not enabled on my config.
Reviewed-by: Julien Grall julien.gr...@citrix.com
Regards,
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.
Regards,
On 07/08/2015 09:46, Julien Grall wrote:
Hi all,
ARM64 Linux is supporting both 4KB and 64KB page granularity. Although, Xen
hypercall interface and PV protocol are always based on 4KB page granularity.
Any attempt to boot a Linux guest with 64KB pages enabled will result to a
guest
On 20/08/2015 03:11, David Vrabel wrote:
On 20/08/15 01:40, Julien Grall wrote:
Hi,
Ping? I'm missing some reviews on block and netfront code.
We'd like to see this series going in Linux 4.3. Some distributions
plans to use this version for aarch64 support. If we miss it, we won't
have any
or not. It will always return
1 on ARM and keep the same behavior on x86.
This is also allow us to drop the usage of xen_have_vector_callback
entirely in the ARM code.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Stefano Stabellini stefano.stabell
foreign page and
another using Linux memory.
Lastly, the helper mfn_to_local_pfn has been renamed to dnf_to_local_pfn
given that the only usage was in swiotlb.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li
it.
[1] Xen tree: e758ed14f390342513405dd766e874934573e6cb
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
arbitrary_virt_to_machine is only used in PV specific code.
Therefore we should never call the function.
Add a BUG() in this helper and drop all the others.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
All the caller of xen_tmem_{get,put}_page have a struct page * in hand
and call pfn_to_gfn for the only benefits of these 2 functions.
Rather than passing the pfn in parameter, pass directly the page and use
directly page_to_gfn.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Konrad
HVM_PARAM_CONSOLE_PFN is used to retrieved the console PFN for HVM
guest. It returns a PFN (aka GFN) and not a MFN.
Furthermore, use directly virt_to_gfn for both PV and HVM domain rather
than doing a special case for each of the them.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Greg
foreign change has been left unchanged
given that the userspace is using it. Nonetheless, add a comment to
explain the expected value within the mfn field.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
Hi David,
On 28/07/15 16:52, David Vrabel wrote:
On 28/07/15 16:02, Julien Grall wrote:
+/* Pseudo-physical - DMA conversion */
+static inline unsigned long pfn_to_dfn(unsigned long pfn)
Use BFN for bus frame number. This is the terminology that is used in
the (proposed) pv-iommu
to rename pfn_to_mfn to a suitable
name.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc: linux-arm-ker...@lists.infradead.org
---
arch/arm/include/asm/xen/page.h | 8
1 file changed, 8
roger@citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Thomas Gleixner t...@linutronix.de
Cc: Tomi Valkeinen tomi.valkei...@ti.com
Cc: Wei Liu wei.l...@citrix.com
Cc: x...@kernel.org
Julien Grall (8):
arm/xen: Remove helpers which
The PV driver xen-fbfront is only dealing with GFN and not MFN. Rename
all the occurence of MFN to GFN.
Also take the opportunity to replace to usage of pfn_to_gfn by
page_to_pfn.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Jean-Christophe Plagniol-Villard plagn...@jcrosoft.com
Cc
On 28/07/15 16:02, Julien Grall wrote:
Hi all,
This patch series aims to use the memory terminologies described in
include/linux/mm.h [1] for Linux xen code.
I mistakenly wrote the wrong include here. It should be include/xen/mm.h
from the Xen tree:
http://xenbits.xen.org/gitweb/?p=xen.git
I'd suggest ...replace any reference to mfn with gfn...
[...]
Thanks for telling me the typoes. I will fix it in the next version of
this series.
Regards,
--
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Hi Boris,
On 28/07/15 20:12, Boris Ostrovsky wrote:
On 07/28/2015 11:02 AM, Julien Grall wrote:
Based on include/xen/mm.h [1], Linux is mistakenly using MFN when GFN
is meant, I suspect this is because the first support for Xen was for
PV. This brough some misimplementation of helpers on ARM
Hi Wei,
On 29/07/15 11:13, Wei Liu wrote:
On Tue, Jul 28, 2015 at 04:02:45PM +0100, Julien Grall wrote:
[...]
diff --git a/drivers/net/xen-netback/netback.c
b/drivers/net/xen-netback/netback.c
index 7d50711..3b7b7c3 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen
On 28/07/15 18:16, David Vrabel wrote:
On 28/07/15 16:02, Julien Grall wrote:
Based on include/xen/mm.h [1], Linux is mistakenly using MFN when GFN
is meant, I suspect this is because the first support for Xen was for
PV. This brough some misimplementation of helpers on ARM and make
sending the patch. I will
fix it in the next version.
Aside from those and the commit message error:
Reviewed-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
Thank you!
Regards,
--
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the body
Hi Boris,
On 05/08/15 00:16, Boris Ostrovsky wrote:
On 08/04/2015 02:12 PM, Julien Grall wrote:
/*
* We detect special mappings in one of two ways:
@@ -217,9 +232,13 @@ static inline unsigned long
bfn_to_local_pfn(unsigned long mfn)
/* VIRT - MACHINE conversion */
#define
On 05/08/15 13:19, Boris Ostrovsky wrote:
On 08/05/2015 06:51 AM, Julien Grall wrote:
diff --git a/drivers/video/fbdev/xen-fbfront.c
b/drivers/video/fbdev/xen-fbfront.c
index 09dc447..25e3cce 100644
--- a/drivers/video/fbdev/xen-fbfront.c
+++ b/drivers/video/fbdev/xen-fbfront.c
@@ -539,7
Hi David,
On 24/07/15 11:10, David Vrabel wrote:
On 24/07/15 10:54, Julien Grall wrote:
On 24/07/15 10:31, David Vrabel wrote:
On 09/07/15 21:42, Julien Grall wrote:
The Xen interface is always using 4KB page. This means that a Linux page
may be split across multiple Xen page when the page
concept.
Regards,
--
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mfn == gfn */ for every use of mfn =
pfn_to_gfn(...).
Regards,
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Hi,
On 04/08/15 19:12, Julien Grall wrote:
diff --git a/include/xen/page.h b/include/xen/page.h
index c5ed20b..e7e1425 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -3,9 +3,9 @@
#include asm/xen/page.h
-static inline unsigned long page_to_mfn(struct page *page
On 06/08/15 12:06, Stefano Stabellini wrote:
On Thu, 6 Aug 2015, Julien Grall wrote:
Hi,
On 04/08/15 19:12, Julien Grall wrote:
diff --git a/include/xen/page.h b/include/xen/page.h
index c5ed20b..e7e1425 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -3,9 +3,9
foreign page and
another using Linux memory.
Lastly, the helper mfn_to_local_pfn has been renamed to dnf_to_local_pfn
given that the only usage was in swiotlb.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li
complex clean up
will come in follow-up patches.
[1]
http://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=e758ed14f390342513405dd766e874934573e6cb
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc
The PV driver xen-fbfront is only dealing with GFN and not MFN. Rename
all the occurence of MFN to GFN.
Also take the opportunity to replace to usage of pfn_to_gfn by
page_to_pfn.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Jean
HVM_PARAM_CONSOLE_PFN is used to retrieved the console PFN for HVM
guest. It returns a PFN (aka GFN) and not a MFN.
Furthermore, use directly virt_to_gfn for both PV and HVM domain rather
than doing a special case for each of the them.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed
to rename pfn_to_mfn to a suitable
name.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc: linux-arm-ker...@lists.infradead.org
---
arch/arm/include/asm/xen/page.h | 8
1 file changed, 8
is only used in PV specific code.
Therefore we should never call the function.
Add a BUG() in this helper and drop all the others.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc: linux-arm
I really meant to say was that assimilated doesn't make sense
in this context either. I think maybe what was meant is ARM guests are
always HVM.
Yes. I will update the commit message too.
Regards,
--
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...@citrix.com
Cc: x...@kernel.org
Julien Grall (8):
arm/xen: Remove helpers which are PV specific
xen: Make clear that swiotlb and biomerge are dealing with DMA address
arm/xen: implement correctly pfn_to_mfn
xen: Use the correctly the Xen memory terminologies
xen/tmem: Use page_to_gfn rather
foreign change has been left unchanged
given that the userspace is using it. Nonetheless, add a comment to
explain the expected value within the mfn field.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Cc: Stefano Stabellini stefano.stabell
All the caller of xen_tmem_{get,put}_page have a struct page * in hand
and call pfn_to_gfn for the only benefits of these 2 functions.
Rather than passing the pfn in parameter, pass directly the page and use
directly page_to_gfn.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Cc: Konrad
foreign change has been left unchanged
given that the userspace is using it. Nonetheless, add a comment to
explain the expected value within the mfn field.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
---
Cc: Stefano Stabellini stefano.stabell
...@vger.kernel.org
Cc: Roger Pau Monné roger@citrix.com
Cc: Russell King li...@arm.linux.org.uk
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc: Thomas Gleixner t...@linutronix.de
Cc: Tomi Valkeinen tomi.valkei...@ti.com
Cc: Wei Liu wei.l...@citrix.com
Cc: x...@kernel.org
Julien Grall (9
The variable xen_store_mfn is effectively storing a GFN and not an MFN.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: David Vrabel david.vra...@citrix.com
I think
The PV driver xen-fbfront is only dealing with GFN and not MFN. Rename
all the occurence of MFN to GFN.
Also take the opportunity to replace to usage of pfn_to_gfn by
xen_page_to_gfn.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
---
Cc
also the opportunity to simplify simple construction such
as pfn_to_mfn(page_to_pfn(page)) into xen_page_to_gfn. More complex clean up
will come in follow-up patches.
[1]
http://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=e758ed14f390342513405dd766e874934573e6cb
Signed-off-by: Julien Grall
is only used in PV specific code.
Therefore we should never call the function.
Add a BUG() in this helper and drop all the others.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
Cc: Russell King li...@arm.linux.org.uk
Cc: linux
-function-declaration]
ret = HYPERVISOR_dom0_op(xs-op);
^
DOM0 op doesn't exists for ARM and xensyms is not even plumbed. I would
make sure that XEN_SYMS is not enabled for ARM maybe adding the line
below in the kconfig?
depends on X86 XEN_DOM0 XENFS
Regards,
--
Julien Grall
HVM_PARAM_CONSOLE_PFN is used to retrieved the console PFN for HVM
guest. It returns a PFN (aka GFN) and not a MFN.
Furthermore, use directly virt_to_gfn for both PV and HVM domain rather
than doing a special case for each of the them.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed
foreign page and
another using Linux memory.
Lastly, the helper mfn_to_local_pfn has been renamed to bfn_to_local_pfn
given that the only usage was in swiotlb.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
Cc: Russell King
All the caller of xen_tmem_{get,put}_page have a struct page * in hand
and call pfn_to_gfn for the only benefits of these 2 functions.
Rather than passing the pfn in parameter, pass directly the page and use
directly xen_page_to_gfn.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed
to rename pfn_to_mfn to a suitable
name.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
Cc: Russell King li...@arm.linux.org.uk
Cc: linux-arm-ker...@lists.infradead.org
Changes in v3:
- Typoes in the commit
with multiple
grant. It will require some care with the {Set,Clear}ForeignPage macro.
Note that no changes has been made in the x86 code because both Linux
and Xen will only use 4KB page granularity.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Reviewed
on the grant table code.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Ian Campbell ian.campb...@citrix.com
Cc: Wei Liu wei.l...@citrix.com
Cc: net...@vger.kernel.org
Improvement such as support of 64KB grant is not taken into
consideration in this patch because we have
The console ring is always based on the page granularity of Xen.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
Cc: Greg Kroah-Hartman gre...@linuxfoundation.org
Cc: Jiri Slaby jsl...@suse.cz
Cc: David Vrabel david.vra
They are not used in common code expect in one place in balloon.c which is
only compiled when Linux is using PV MMU. It's not the case on ARM.
Rather than worrying how to handle the 64KB case, drop them.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Stefano Stabellini stefano.stabell
On 07/08/15 17:46, Julien Grall wrote:
Hi all,
ARM64 Linux is supporting both 4KB and 64KB page granularity. Although, Xen
hypercall interface and PV protocol are always based on 4KB page granularity.
Any attempt to boot a Linux guest with 64KB pages enabled will result to a
guest crash
execution path, separate
the function in 2. This will also remove one level of tabulation.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: Roger Pau Monné roger@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc
The skb doesn't change within the function. Therefore it's only
necessary to check if we need GSO once at the beginning.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Ian Campbell ian.campb...@citrix.com
Cc: Wei Liu wei.l...@citrix.com
Cc: net...@vger.kernel.org
Changes in v2
the compilation. Furthermore, only definition in
interface/grant_table.h was required.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: David Vrabel david.vra...@citrix.com
Cc: Thomas Gleixner t
All the usage of the field pfn are done using the same idiom:
pfn_to_page(grant-pfn)
This will return always the same page. Store directly the page in the
grant to clean up the code.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Acked-by: Roger Pau Monné roger@citrix.com
Reviewed
definition. They have exactly the same name but prefixed with
XEN_/xen_ prefix.
Also modify xen_page_to_gfn to use new Xen page definition.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w
be found here:
git://xenbits.xen.org/people/julieng/linux-arm.git branch xen-64k-v3
Comments, suggestions are welcomed.
Sincerely yours,
Cc: david.vra...@citrix.com
Cc: konrad.w...@oracle.com
Cc: boris.ostrov...@oracle.com
Cc: wei.l...@citrix.com
Cc: roger@citrix.com
Julien Grall (20):
net/xen
on the grant table code.
Note that we allocate a Linux page for each rx skb but only the first
4KB is used. We may improve the memory usage by extending the size of
the rx skb.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky
page even though only the
first 4KB is used. I don't think this is really important for now as it
helps to have the pointer 4KB aligned (XENMEM_add_to_physmap is taking a
Xen PFN).
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Stefano Stabellini stefano.stabell...@eu.citrix.com
Cc
on the grant table
code.
Note that the grant table code is allocating a Linux page per grant
which will result to waste 6OKB for every grant when Linux is using 64KB
page granularity. This could be improved by sharing the page between
multiple grants.
Signed-off-by: Julien Grall julien.gr
of the
extent_order field to directly allocate/free chunk of the Linux page
size.
Note that PVMMU is only used for PV guest (which is x86) and the page
granularity is always 4KB. Some BUILD_BUG_ON has been added to ensure
that because the code has not been modified.
Signed-off-by: Julien Grall
which result
to page_mfn not being defined when necessary.
Signed-off-by: Julien Grall julien.gr...@linaro.org
Reviewed-by: David Vrabel david.vra...@citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell...@eu.citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky
to copy
data from persistent grant or indirect grant. Avoid to set it for other
use case as it will have no meaning given the page will be split in
multiple grant.
Provide 2 functions, to setup indirect grant, the other for bio page.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc
-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: David Vrabel david.vra...@citrix.com
There is some ideas to check whether two biovec could be merged
(see [1]) but it's not critical and can
granularity).
Futhermore, in the case of persistent grant we allocate one Linux page
per grant although only the 4KB of the page will be effectively use.
This could be improved by share the page with multiple grants.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Konrad Rzeszutek
will have
to map multiple Xen PFN in a single Linux page.
Note that this solution works on page granularity which is a multiple of
4KB.
Signed-off-by: Julien Grall julien.gr...@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
Cc: David
chunk). That would require more care when we fail to expand the
event channel.
Signed-off-by: Julien Grall julien.gr...@citrix.com
Reviewed-by: David Vrabel david.vra...@citrix.com
Reviewed-by: Stefano Stabellini stefano.stabell...@citrix.com
---
Cc: Konrad Rzeszutek Wilk konrad.w
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