ions on -EAGAIN and
> still be alerted if the pending message fails to requeue.
>
> Signed-off-by: Nicholas Tsirakis
Thanks for the correct identification of the problem and the patch.
Reviewed-by: Christopher Clark
> ---
> xen/common/argo.c | 6 +-
> 1 file changed, 5 i
On Tue, Jun 11, 2019 at 10:11 AM Nicholas Tsirakis
wrote:
>
> When a message is requeue'd in Xen's internal queue, the queue
> entry contains the length of the message so that Xen knows to
> send a VIRQ to the respective domain when enough space frees up
> in the ring. Due to a small bug, however,
On Tue, Jun 11, 2019 at 12:16 PM Andrew Cooper
wrote:
>
> On 11/06/2019 19:43, Christopher Clark wrote:
> > On Tue, Jun 11, 2019 at 10:11 AM Nicholas Tsirakis
> > wrote:
> >> In its current state, if the destination ring is full, sendv()
> >> will requ
On Tue, Jun 11, 2019 at 12:55 PM Nicholas Tsirakis
wrote:
>
> On Tue, Jun 11, 2019 at 2:49 PM Christopher Clark
> wrote:
> >
> > On Tue, Jun 11, 2019 at 10:11 AM Nicholas Tsirakis
> > wrote:
> > >
> > > When a message is requeue'd in Xen&#x
On Tue, Jun 11, 2019 at 2:14 PM Nicholas Tsirakis
wrote:
>
> In its current state, if the destination ring is full, sendv()
> will requeue the message and return the rc of pending_requeue(),
> which will return 0 on success. This prevents the caller from
> distinguishing the difference between a s
On Tue, Jun 11, 2019 at 2:14 PM Nicholas Tsirakis
wrote:
>
> When a message is requeue'd in Xen's internal queue, the queue
> entry contains the length of the message so that Xen knows to
> send a VIRQ to the respective domain when enough space frees up
> in the ring. Due to a small bug, however,
iously"
> a domain even when the ring doesn't have enough space.
>
> This patch makes sure that the msg len is properly reported by
> populating it in the event of a write failure.
>
> Signed-off-by: Nicholas Tsirakis
Reviewed-by: Christopher Clark
> ---
> xen/
On Thu, Dec 20, 2018 at 12:33 AM Jan Beulich wrote:
>
> >>> On 20.12.18 at 06:58, wrote:
> > On Wed, Dec 12, 2018 at 3:53 AM Jan Beulich wrote:
> >> >>> On 01.12.18 at 02:32, wrote:
> >> > +static struct argo_ring_info *
> >> > +argo_ring_find_info_by_match(const struct domain *d, uint32_t port
Will inhibit initialization of the domain's argo data structure to
prevent receiving any messages or notifications and access to any of
the argo hypercall operations.
Signed-off-by: Christopher Clark
---
v2 self: fix xsm use in soft-reset prior to introduction
v1 #5 (#17) feedback Paul
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 31535bd..0dc064d 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -1172,6 +1172,17 @@ fill_ring_data(const struct domain
to be integer multiples of 32 bits in size. This means that the same
copy_to_guest and copy_from_guest logic can be relied upon to perform as
required without any further intervention. Testing communication with 32
and 64 bit guests has confirmed this works as intended.
Signed-off-by: Christopher
ARM port of c/s bb544585: "introduce guest_handle_for_field()"
This helper turns a field of a GUEST_HANDLE into a GUEST_HANDLE.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
---
xen/include/asm-arm/guest_access.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/x
structures; the coverage of offset of elements is still retained.
Signed-off-by: Christopher Clark
---
xen/common/Makefile | 2 +-
xen/common/compat/argo.c | 61
2 files changed, 62 insertions(+), 1 deletion(-)
create mode 100644 xen/com
A convenience for working on development of the argo subsystem:
setting a #define variable enables additional debug messages.
Signed-off-by: Christopher Clark
---
v2 #03 feedback, Jan: fix ifdef/define confusion error
v1 #04 feedback, Jan: fix dprintk implementation
xen/common/argo.c | 9
Default policy: allow.
Signed-off-by: Christopher Clark
---
v2: reordered commit sequence to after sendv implementation
v1 feedback Jan #16: apply const to function signatures
v1 version was:
Reviewed-by: Paul Durrant
xen/common/argo.c | 8
xen/include/xsm/dummy.h
via fixed constant value fields removed.
Christopher Clark (15):
argo: Introduce the Kconfig option to govern inclusion of Argo
argo: introduce the argo_op hypercall boilerplate
argo: define argo_dprintk for subsystem debugging
argo: init, destroy and soft-reset, with enable command line opt
ress space.
If the ring had been registered to communicate with a single specified
domain (ie. a non-wildcard ring) then the partner domain state is removed
from the partner domain's argo send_info hash table.
Signed-off-by: Christopher Clark
---
v2 feedback Jan: drop cookie, implement teard
e files in question is fully owned by
Citrix. The ACK also confirms that Citrix is happy for the header files to
be published under a BSD license in this series (which is based on [1]).
Signed-off-by: Christopher Clark
Acked-by: Lars Kurth
---
v2 rewrite locking explanation comment
v2 header copy
option depends on EXPERT and Argo is currently an
experimental feature.
Signed-off-by: Christopher Clark
---
v2 #01 feedback, Jan: replace def_bool/prompt with bool
v1 #02 feedback, Jan: default Kconfig off, use EXPERT, fix whitespace
xen/common/Kconfig | 19 +++
1 file changed
termine which
event channel notifications will be delivered on. This is also likely to
simplify establishing future L0/L1 nested hypervisor argo communication.
Signed-off-by: Christopher Clark
---
The previous double-read of iovs from guest memory has been removed.
v2 self: use ring_info b
quent notifications.
Limit the maximum number of notify requests in a single operation to a
simple fixed limit of 256.
Signed-off-by: Christopher Clark
---
v2 feedback Jan: drop cookie, implement teardown
v2 notify: add flag to indicate ring is shared
v2 argument name for fill_ring_data arg i
the guest just before
being used as an array index.
Signed-off-by: Christopher Clark
---
v2 self: disallow ring resize via reregister
v2 feedback Jan: drop cookie, implement teardown
v2 feedback Jan: drop message from argo_message_op
v2 self: move hash_index function below locking comment
v2 se
, which will allow or deny
registration of any-sender rings.
This commit modifies the signature of core XSM hook functions in order to
apply 'const' to arguments, needed in order for 'const' to be accepted in
signature of functions that invoke them.
Signed-off-by: Chris
EMSGSIZE : "Message too large"
ECONNREFUSED : "Connection refused".
The numeric values assigned to each are taken from Linux, as is the case
for the existing error codes.
EMSGSIZE : 90
ECONNREFUSED : 111
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
---
On Fri, Jan 4, 2019 at 5:37 AM Jan Beulich wrote:
>
> >>> On 04.01.19 at 09:13, wrote:
> > ok, I'm at the point where I'm close to having a version three of the
> > series to post that addresses all the feedback so far, plus some
> > additional improvements, with the following two items remaining
On Tue, Jan 8, 2019 at 2:09 PM Ross Philipson wrote:
>
> On 01/07/2019 02:42 AM, Christopher Clark wrote:
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> >
> > Inclusion of the Argo implementation is dependent on C
On Tue, Jan 8, 2019 at 2:54 PM Jason Andryuk wrote:
>
> On Mon, Jan 7, 2019 at 2:43 AM Christopher Clark
> wrote:
> >
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> >
> > Inclusion of the Argo imp
On Wed, Jan 9, 2019 at 7:56 AM Wei Liu wrote:
>
> On Sun, Jan 06, 2019 at 11:42:40PM -0800, Christopher Clark wrote:
> > The register op is used by a domain to register a region of memory for
> > receiving messages from either a specified other domain, or, if specifying a
> &
On Wed, Jan 9, 2019 at 10:14 AM Julien Grall wrote:
> On Wed, 9 Jan 2019, 12:18 Stefano Stabellini, wrote:
>> On Wed, 9 Jan 2019, Julien Grall wrote:
>> > Hi,
>> > Sorry for the formatting. Sending it from my phone.
>> >
>> > On Wed, 9 Ja
On Wed, Jan 9, 2019 at 10:28 AM Julien Grall wrote:
>
>
>
> On Wed, 9 Jan 2019, 12:54 Wei Liu, wrote:
>>
>> On Wed, Jan 09, 2019 at 12:02:34PM -0500, Julien Grall wrote:
>> > Hi,
>> >
>> > Sorry for the formatting. Sending it from my phone.
&g
On Wed, Jan 9, 2019 at 6:16 AM Jason Andryuk wrote:
> On Wed, Jan 9, 2019 at 1:48 AM Christopher Clark
> wrote:
> > On Tue, Jan 8, 2019 at 2:54 PM Jason Andryuk wrote:
> > > On Mon, Jan 7, 2019 at 2:43 AM Christopher Clark
> > > wrote:
>
> > > >
On Wed, Jan 9, 2019 at 10:05 AM Jason Andryuk wrote:
>
> On Mon, Jan 7, 2019 at 2:43 AM Christopher Clark
> wrote:
>
>
>
> > @@ -342,6 +357,413 @@ update_tx_ptr(struct argo_ring_info *ring_info,
> > uint32_t tx_ptr)
> > smp_wmb();
> > }
>
Thanks for the review, Roger. Replies inline below.
On Wed, Jan 9, 2019 at 10:57 AM Roger Pau Monné wrote:
>
> to.On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> wrote:
> >
> > sendv operation is invoked to perform a synchronous send of buffers
> > contained i
On Mon, Jan 7, 2019 at 3:07 PM DeGraaf, Daniel G wrote:
>
> > From: Christopher Clark
> > Subject: [PATCH v3 11/15] xsm, argo: XSM control for argo register
> >
> > XSM controls for argo ring registration with two distinct cases, where
> > the ring being regist
On Wed, Jan 9, 2019 at 6:38 AM Jan Beulich wrote:
>
> >>> On 09.01.19 at 15:26, wrote:
> > On Wed, Jan 9, 2019 at 4:35 AM Jan Beulich wrote:
> >> >>> On 08.01.19 at 23:54, wrote:
> >> > On Mon, Jan 7, 2019 at 2:43 AM Christopher Clark
On Thu, Jan 10, 2019 at 2:19 AM Roger Pau Monné wrote:
>
> On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> wrote:
> >
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> > diff --git a/xen/common/argo.c b/xe
On Thu, Jan 10, 2019 at 8:16 AM Eric Chanudet wrote:
>
> On 06/01/19 at 11:42pm, Christopher Clark wrote:
> >+partner_rings_remove(struct domain *src_d)
>
> >+ring_info = ring_find_info(dst_d, &send_info->id);
> ring_find_info is defined later (PATC
On Thu, Jan 10, 2019 at 12:11 PM Eric Chanudet wrote:
>
> On 06/01/19 at 11:42pm, Christopher Clark wrote:
> >+/*
> >+ * The maximum size of an Argo ring is defined to be: 16GB
> >+ * -- which is 0x100 bytes.
> >+ * A byte index into the ring is at mos
On Thu, Jan 10, 2019 at 3:25 AM Roger Pau Monné wrote:
>
> On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> wrote:
> >
> > The register op is used by a domain to register a region of memory for
> > receiving messages from either a specified other domain, or, if spe
On Thu, Jan 10, 2019 at 3:57 AM Jan Beulich wrote:
>
> >>> On 10.01.19 at 12:24, wrote:
> > On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> > wrote:
> >> +static long
> >> +register_ring(struct domain *currd,
> >
> > If this is
On Thu, Jan 10, 2019 at 4:53 AM Jan Beulich wrote:
>
> >>> On 10.01.19 at 13:40, wrote:
> > On Thu, Jan 10, 2019 at 1:13 PM Jan Beulich wrote:
> >>
> >> >>> On 10.01.19 at 13:01, wrote:
> >> > On Thu, Jan 10, 2019 at 4:10 AM Christ
On Thu, Jan 10, 2019 at 1:41 PM Eric Chanudet wrote:
>
> On 06/01/19 at 11:42pm, Christopher Clark wrote:
> >+memcpy_to_guest_ring(struct argo_ring_info *ring_info, uint32_t offset,
> >+ const void *src, XEN_GUEST_HANDLE(uint8_t) src_hnd,
> >+
On Fri, Jan 11, 2019 at 1:27 AM Roger Pau Monné wrote:
> On Fri, Jan 11, 2019 at 7:04 AM Christopher Clark
> wrote:
> >
> > On Thu, Jan 10, 2019 at 2:19 AM Roger Pau Monné wrote:
> > >
> > > On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> > &g
On Fri, Jan 11, 2019 at 3:54 AM Jan Beulich wrote:
>
> >>> On 07.01.19 at 08:42, wrote:
> > --- a/xen/common/argo.c
> > +++ b/xen/common/argo.c
> > @@ -17,7 +17,177 @@
> > */
> >
> > #include
> > +#include
> > +#include
> > +#include
> > +#include
> > +#include
> > #include
> > +#inclu
On Mon, Jan 14, 2019 at 6:47 AM Wei Liu wrote:
>
> Hi all
>
> The locking scheme seems to be remaining sticking point. The rest are
> mostly cosmetic issues (FAOD, they still need to be addressed). Frankly
> I don't think there is enough time to address all the technical details,
> but let me sum
On Thu, Jan 10, 2019 at 4:22 AM Roger Pau Monné wrote:
>
> On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> wrote:
> >
> > Queries for data about space availability in registered rings and
> > causes notification to be sent when space has become available.
> >
On Mon, Jan 14, 2019 at 6:58 AM Andrew Cooper wrote:
>
> On 07/01/2019 07:42, Christopher Clark wrote:
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> >
> > Inclusion of the Argo implementation is dependent on CON
On Mon, Jan 14, 2019 at 7:12 AM Jan Beulich wrote:
>
> >>> On 14.01.19 at 15:58, wrote:
> > On 07/01/2019 07:42, Christopher Clark wrote:
> >> --- a/xen/common/argo.c
> >> +++ b/xen/common/argo.c
> >> long
> >> do_argo_op(unsigned int c
On Mon, Jan 14, 2019 at 6:19 AM Jan Beulich wrote:
>
> >>> On 07.01.19 at 08:42, wrote:
> > --- a/xen/common/argo.c
> > +++ b/xen/common/argo.c
> > @@ -23,16 +23,41 @@
> > #include
> > #include
> > #include
> > +#include
> > +#include
> > #include
> > #include
> >
> > +#define MAX_RIN
On Mon, Jan 14, 2019 at 7:31 AM Andrew Cooper wrote:
>
> On 07/01/2019 07:42, Christopher Clark wrote:
> > diff --git a/docs/misc/xen-command-line.pandoc
> > b/docs/misc/xen-command-line.pandoc
> > index aea13eb..68d4415 100644
> > --- a/docs/misc/xen-command-line.
On Thu, Jan 10, 2019 at 3:40 AM Roger Pau Monné wrote:
>
> On Mon, Jan 7, 2019 at 8:44 AM Christopher Clark
> wrote:
> >
> > Takes a single argument: a handle to the ring unregistration struct,
> > which specifies the port and partner domain id or wildcard.
> >
On Mon, Jan 14, 2019 at 7:06 AM Jan Beulich wrote:
>
> >>> On 07.01.19 at 08:42, wrote:
> > @@ -666,6 +667,105 @@ ring_find_info(const struct domain *d, const struct
> > argo_ring_id *id)
> > return NULL;
> > }
> >
> > +static struct argo_send_info *
> > +send_find_info(const struct domain
On Tue, Jan 15, 2019 at 12:06 AM Roger Pau Monné wrote:
>
> On Mon, Jan 14, 2019 at 10:53:54PM -0800, Christopher Clark wrote:
> > On Thu, Jan 10, 2019 at 4:22 AM Roger Pau Monné wrote:
> > >
> > > On Mon, Jan 7, 2019 at 8:44 AM
On Tue, Jan 15, 2019 at 12:36 AM Jan Beulich wrote:
>
> >>> On 15.01.19 at 08:56, wrote:
> > On Mon, Jan 14, 2019 at 6:19 AM Jan Beulich wrote:
> >> >>> On 07.01.19 at 08:42, wrote:
> >> > +/*
> >> > + * A ring must be large enough to transmit messages, so requires
> >> > space for:
>
to be integer multiples of 32 bits in size. This means that the same
copy_to_guest and copy_from_guest logic can be relied upon to perform as
required without any further intervention. Testing communication with 32
and 64 bit guests has confirmed this works as intended.
Signed-off-by: Christopher
A convenience for working on development of the argo subsystem:
setting a #define variable enables additional debug messages.
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
Reviewed-by: Roger Pau Monné
---
v3 added Roger's Reviewed-by
v3 added Jan's Ack
v2 #03 feedback, Jan:
remaining to be addressed have been noted with
comments in the commit message and at the location in the code.
Christopher Clark (14):
argo: Introduce the Kconfig option to govern inclusion of Argo
argo: introduce the argo_op hypercall boilerplate
argo: define argo_dprintk for subsystem debugging
option depends on EXPERT and Argo is currently an
experimental feature.
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
---
(Jan's ack applies for committing together with at least one patch
using the CONFIG_ARGO symbol.)
v3 added Jan's Ack
v2 #01 feedback, Jan: replace def_b
, which will allow or deny
registration of any-sender rings.
This commit modifies the signature of core XSM hook functions in order to
apply 'const' to arguments, needed in order for 'const' to be accepted in
signature of functions that invoke them.
Signed-off-by: Christo
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
---
v3 #10 Roger: drop out label, use return -EFAULT in fill_ring_data
v3: Add Daniel's Acked-by
xen/common/argo.c | 12
1 file changed, 12 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 23
ader files to
be published under a BSD license in this series (which is based on [1]).
Signed-off-by: Christopher Clark
Acked-by: Lars Kurth
Reviewed-by: Ross Philipson
This version contains FIXMEs for 4.12:
* Replace the hash function to get better distribution across buckets.
- Don'
ARM port of c/s bb544585: "introduce guest_handle_for_field()"
This helper turns a field of a GUEST_HANDLE into a GUEST_HANDLE.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Reviewed-by: Stefano Stabellini
---
v3: Added Stefano's Reviewed-by
v2: Added Paul'
Will inhibit initialization of the domain's argo data structure to
prevent receiving any messages or notifications and access to any of
the argo hypercall operations.
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
---
v3 Daniel/Jan: add to the default xsm policy for enable
v
of the ring id hash function.
This is out of an abundance of caution, since this is a very basic hash
function and it operates upon values supplied by the guest just before
being used as an array index.
Signed-off-by: Christopher Clark
-This version contains FIXMEs for 4.12:
* find_ring_m
termine which
event channel notifications will be delivered on. This is also likely to
simplify establishing future L0/L1 nested hypervisor argo communication.
Signed-off-by: Christopher Clark
---
v3 #07 Jan: rename ring_find_info* to find_ring_info*
v3 #07 Jan: fix numeric entries in printk form
k and consequent notifications.
Limit the maximum number of notify requests in a single operation to a
simple fixed limit of 256.
Signed-off-by: Christopher Clark
---
v3 #07 Jan: fix format string indention in printks
v3 (general) Jan: drop fixed width types for ringbuf_payload_space
v3 #07 Jan: r
EMSGSIZE : "Message too large"
ECONNREFUSED : "Connection refused".
The numeric values assigned to each are taken from Linux, as is the case
for the existing error codes.
EMSGSIZE : 90
ECONNREFUSED : 111
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
---
Default policy: allow.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Acked-by: Daniel De Graaf
---
v3 Daniel/Jan: add to the default xsm policy for the send op
v3 Add Daniel's Acked-by
v2: reordered commit sequence to after sendv implementation
v1 feedback Jan #16: apply con
ress space.
If the ring had been registered to communicate with a single specified
domain (ie. a non-wildcard ring) then the partner domain state is removed
from the partner domain's argo send_info hash table.
Signed-off-by: Christopher Clark
---
v3 #08 Jan: pull xfree out of exclusive criti
On Tue, Jan 15, 2019 at 6:41 AM Roger Pau Monné wrote:
>
> On Tue, Jan 15, 2019 at 01:27:39AM -0800, Christopher Clark wrote:
> > The register op is used by a domain to register a region of memory for
> > receiving messages from either a specified other domain, or, if specify
On Tue, Jan 15, 2019 at 8:34 AM Roger Pau Monné wrote:
>
> On Tue, Jan 15, 2019 at 01:27:32AM -0800, Christopher Clark wrote:
> > Version four of this patch series.
> >
> > * Changes are primarily addressing feedback from the v3 series reviews.
> > Many points
On Tue, Jan 15, 2019 at 4:29 AM Roger Pau Monné wrote:
>
> On Tue, Jan 15, 2019 at 01:27:36AM -0800, Christopher Clark wrote:
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> > +
> > +/*
> > + * The value of
On Tue, Jan 15, 2019 at 7:07 AM Roger Pau Monné wrote:
>
> On Tue, Jan 15, 2019 at 01:27:40AM -0800, Christopher Clark wrote:
> > Takes a single argument: a handle to the ring unregistration struct,
> > which specifies the port and partner domain id or wildcard.
> >
On Tue, Jan 15, 2019 at 7:49 AM Roger Pau Monné wrote:
>
> On Tue, Jan 15, 2019 at 01:27:41AM -0800, Christopher Clark wrote:
> > sendv operation is invoked to perform a synchronous send of buffers
> > contained in iovs to a remote domain's registered ring.
> >
>
On Tue, Jan 15, 2019 at 8:19 AM Roger Pau Monné wrote:
>
> On Tue, Jan 15, 2019 at 01:27:42AM -0800, Christopher Clark wrote:
> > Queries for data about space availability in registered rings and
> > causes notification to be sent when space has become available.
> &
On Mon, Jan 14, 2019 at 4:57 AM Jan Beulich wrote:
>
> >>> On 07.01.19 at 08:42, wrote:
> > Argo doesn't use compat hypercall or argument translation but can use some
> > of the infrastructure for validating the hypercall argument structures to
> > ensure that the struct sizes, offsets and compos
On Thu, Jan 17, 2019 at 3:12 AM Roger Pau Monné wrote:
>
> On Wed, Jan 16, 2019 at 10:54:48PM -0800, Christopher Clark wrote:
> > On Tue, Jan 15, 2019 at 8:19 AM Roger Pau Monné
> > wrote:
> > >
> > > On Tue, Jan 15, 2019 at 01:27:42AM -0800, Christopher C
On Fri, Jan 18, 2019 at 1:44 AM Roger Pau Monné wrote:
>
> On Thu, Jan 17, 2019 at 01:44:32PM -0800, Christopher Clark wrote:
> > On Thu, Jan 17, 2019 at 3:12 AM Roger Pau Monné
> > wrote:
> > >
> > > On Wed, Jan 16, 2019 at 10:54:48PM -0800, Christopher
On Fri, Jan 18, 2019 at 3:54 PM Christopher Clark
wrote:
>
> On Fri, Jan 18, 2019 at 1:44 AM Roger Pau Monné wrote:
> >
> > On Thu, Jan 17, 2019 at 01:44:32PM -0800, Christopher Clark wrote:
> > > On Thu, Jan 17, 2019 at 3:12 AM Roger Pau Monné
> > > wrote:
On Thu, Jan 17, 2019 at 3:25 AM Jan Beulich wrote:
>
> >>> On 17.01.19 at 08:22, wrote:
> > Some details of the problem:
> >
> > Without the macro overrides in place (ie. using the existing
> > definitions) the build fails on CHECK_argo_send_addr because this
> > struct is defined with types tha
On Sat, Jan 19, 2019 at 4:06 AM Roger Pau Monné wrote:
>
> On Fri, Jan 18, 2019 at 03:54:14PM -0800, Christopher Clark wrote:
> > On Fri, Jan 18, 2019 at 1:44 AM Roger Pau Monné
> > wrote:
> > >
> > > On Thu, Jan 17, 2019 at 01:44:32PM -0800, Christopher
Signed-off-by: Christopher Clark
---
MAINTAINERS | 8
1 file changed, 8 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 96a0518..c4f5316 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -158,6 +158,14 @@ S: Supported
F: xen/arch/x86/hvm/svm/
F: xen/arch/x86/cpu
rings
- command line doc edit: no "CONFIG_ARGO" but refers to build config
* Switched to use the standard list data structures used by Xen's
common code.
* Further removal of uses of fixed-width types.
* Added a new patch to add Argo to the MAINTAINERS file.
Christopher Cla
ARM port of c/s bb544585: "introduce guest_handle_for_field()"
This helper turns a field of a GUEST_HANDLE into a GUEST_HANDLE.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Reviewed-by: Stefano Stabellini
---
v3: Added Stefano's Reviewed-by
v2: Added Paul'
option depends on EXPERT and Argo is currently an
experimental feature.
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
---
v3 added Jan's Ack
v2 #01 feedback, Jan: replace def_bool/prompt with bool
v1 #02 feedback, Jan: default Kconfig off, use EXPERT, fix whitespace
xen/common/Kc
A convenience for working on development of the argo subsystem:
setting a #define variable enables additional debug messages.
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
Reviewed-by: Roger Pau Monné
---
v3 added Roger's Reviewed-by
v3 added Jan's Ack
v2 #03 feedback, Jan:
to be integer multiples of 32 bits in size. This means that the same
copy_to_guest and copy_from_guest logic can be relied upon to perform as
required without any further intervention. Testing communication with 32
and 64 bit guests has confirmed this works as intended.
Signed-off-by: Christopher
se in this series (which is based on [1]).
Signed-off-by: Christopher Clark
Acked-by: Lars Kurth
Reviewed-by: Ross Philipson
---
v4 Jan: amend the command line doc text referring to build configuration
v4 feedback: use standard data structures as per common code
v4 Jan: replace hash_index with dj
quent notifications.
Limit the maximum number of notify requests in a single operation to a
simple fixed limit of 256.
Signed-off-by: Christopher Clark
---
v4 #10 Roger: consolidate notify flags; infer pending notify if needed
v4 bugfix: take L3 before accessing ring_info in fill_ring_data
v
Will inhibit initialization of the domain's argo data structure to
prevent receiving any messages or notifications and access to any of
the argo hypercall operations.
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
---
v3 Daniel/Jan: add to the default xsm policy for enable
v
d in order for 'const' to be accepted in
signature of functions that invoke them.
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
---
v3 Daniel/Jan: add to the default xsm policy for the register op
v3 hoist opt_argo_mac_permissive check to allow default policy to match non-
late hypercall args.
This hypercall op and its interface currently only supports 4K-sized pages.
Signed-off-by: Christopher Clark
---
v4 v3#07 Jan: shrink critical sections in register_ring
v4 v3#07 Jan: revise register flag MASK in header, note 32-bitness of args
v4 feedback: use standard data s
EMSGSIZE : "Message too large"
ECONNREFUSED : "Connection refused".
The numeric values assigned to each are taken from Linux, as is the case
for the existing error codes.
EMSGSIZE : 90
ECONNREFUSED : 111
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
---
Default policy: allow.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Acked-by: Daniel De Graaf
---
v3 Daniel/Jan: add to the default xsm policy for the send op
v3 Add Daniel's Acked-by
v2: reordered commit sequence to after sendv implementation
v1 feedback Jan #16: apply con
ress space.
If the ring had been registered to communicate with a single specified
domain (ie. a non-wildcard ring) then the partner domain state is removed
from the partner domain's argo send_info hash table.
Signed-off-by: Christopher Clark
---
The logic in unregister_ring got pretty heavi
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
---
v3 #10 Roger: drop out label, use return -EFAULT in fill_ring_data
v3: Add Daniel's Acked-by
xen/common/argo.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 46
L0/L1 nested hypervisor argo communication.
Signed-off-by: Christopher Clark
---
v4 Jan: remove use of fixed-width types from iov_count, ringbuf_insert
v4 #07 Jan: shrink critical sections in sendv
v3 #07 Jan: header: note 32-bitness of hypercall message tuype arg
v4 : use standard data structures
On Mon, Jan 21, 2019 at 4:03 AM Jan Beulich wrote:
>
> >>> On 20.01.19 at 22:18, wrote:
> > On Thu, Jan 17, 2019 at 3:25 AM Jan Beulich wrote:
> >>
> >> >>> On 17.01.19 at 08:22, wrote:
> >
> > 3. A challenge with using the "struct" form, following from the result
> > of point 2, occurs when it
to be integer multiples of 32 bits in size. This means that the same
copy_to_guest and copy_from_guest logic can be relied upon to perform as
required without any further intervention. Testing communication with 32
and 64 bit guests has confirmed this works as intended.
Signed-off-by: Christopher
ARM port of c/s bb544585: "introduce guest_handle_for_field()"
This helper turns a field of a GUEST_HANDLE into a GUEST_HANDLE.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Reviewed-by: Stefano Stabellini
===
v3: Added Stefano's Reviewed-by
v2: Added Paul's
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