NTAINERS
- added comment explaining tx_ptr rounding after iovs processing
- BUILD_BUG_ON check for MAX_RING_SIZE align to PAGE_SIZE
- use gprintk for error on denied registration of existing ring
Christopher Clark (15):
argo: Introduce the Kconfig option to govern inclusion of Argo
argo: i
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-
option depends on EXPERT and Argo is currently an
experimental feature.
Signed-off-by: Christopher Clark
Acked-by: Jan Beulich
===
Jan's ack only stands for committing this together with at least one patch
actually using the CONFIG_ARGO symbol.
v3 added Jan's Ack
v2 #01 feedback, Ja
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
===
Jan's further remark given with the Ack:
"This would better be
se in this series (which is based on [1]).
Signed-off-by: Christopher Clark
Acked-by: Lars Kurth
Reviewed-by: Ross Philipson
v5 #04 Roger: tweak command line doc: remove statement about top level bool
v5: add compat validation macros to primary source file: common/argo.c
v5: dropped external file
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
v5: add EBUSY ent flag when too many domains are already on pending list
v5: reorder notify flags: error flags last, fixed state first
v5: add c
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
late hypercall args.
This hypercall op and its interface currently only supports 4K-sized pages.
Signed-off-by: Christopher Clark
v5 #07 Roger: add BUILD_BUG_ON for MAX_RING_SIZE, PAGE_SIZE
v5 #07 Roger: gprintk(XENLOG_ERR,.. for denied existing ring
v5: add compat validation macros to pr
Signed-off-by: Christopher Clark
v5 whitespace: tabs
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e99d39e..a0cda4f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -158,6 +158,13 @@ S: Supported
F: xen/arch/x86/hvm/svm/
F: xen
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 ba
L0/L1 nested hypervisor argo communication.
Signed-off-by: Christopher Clark
v5 #09 Roger: add comment explaining post-iovs tx_ptr round up + wrap
v5 #09 Roger: remove redundant len bounds check vs MAX_ARGO_MESSAGE_SIZE
v5 #09 Roger: ringbuf_insert: WARN not ERR on empty iovs
v5 #09 Roger: bugfix: set
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
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
v5: add compat validation macros to primary sour
On Thu, Jan 24, 2019 at 2:08 AM Julien Grall wrote:
>
> Hi,
>
> On 24/01/2019 02:04, Christopher Clark wrote:
> > Presence is gated upon CONFIG_ARGO.
> >
> > Registers the hypercall previously reserved for this.
> > Takes 5 arguments, does nothing and returns
On Fri, Jan 25, 2019 at 5:32 PM Chris Patterson wrote:
>
> On Wed, Jan 23, 2019 at 9:07 PM Christopher Clark
> wrote:
> >
> > Will inhibit initialization of the domain's argo data structure to
> > prevent receiving any messages or notifications and access
On Fri, Jan 25, 2019 at 5:34 PM Chris Patterson wrote:
>
> On Wed, Jan 23, 2019 at 9:07 PM Christopher Clark
> wrote:
> >
> > XSM controls for argo ring registration with two distinct cases
> > ---
> > diff --git a/xen/include/xsm/xsm.h b/xen/include/xsm/xsm.h
On Fri, Jan 25, 2019 at 6:10 PM Chris Patterson wrote:
>
> > -static int domain_has_perm(struct domain *dom1, struct domain *dom2,
> > +static int domain_has_perm(const struct domain *dom1,
> > + const struct domain *dom2,
> > u16 class, u32 pe
On Tue, Jan 22, 2019 at 6:19 AM Roger Pau Monné wrote:
>
> On Mon, Jan 21, 2019 at 01:59:40AM -0800, Christopher Clark wrote:
> > Version five of this patch series:
> >
> > * Changes are primarily addressing feedback from the v4 series reviews.
> > Many points
On Mon, Jan 21, 2019 at 9:55 AM Roger Pau Monné wrote:
>
> On Mon, Jan 21, 2019 at 01:59:44AM -0800, Christopher Clark wrote:
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> >
> > Inclusion of the Argo implementati
On Tue, Jan 22, 2019 at 1:59 AM Roger Pau Monné wrote:
>
> On Mon, Jan 21, 2019 at 01:59:47AM -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 22, 2019 at 4:08 AM Roger Pau Monné wrote:
>
> On Mon, Jan 21, 2019 at 01:59:49AM -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 22, 2019 at 6:14 AM Roger Pau Monné wrote:
>
> On Mon, Jan 21, 2019 at 01:59:50AM -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 28, 2019 at 3:16 AM Jan Beulich wrote:
>
> >>> On 24.01.19 at 03:04, wrote:
> > --- a/xen/include/xlat.lst
> > +++ b/xen/include/xlat.lst
> > @@ -148,3 +148,5 @@
> > ?flask_setenforcexsm/flask_op.h
> > !flask_sid_context xsm/flask_op.h
> > ?
On Fri, Jan 25, 2019 at 10:55 AM Christopher Clark
wrote:
>
> On Thu, Jan 24, 2019 at 2:08 AM Julien Grall wrote:
> >
> > Hi,
> >
> > On 24/01/2019 02:04, Christopher Clark wrote:
> > > Presence is gated upon CONFIG_ARGO.
> > >
> >
On Mon, Jan 28, 2019 at 3:19 AM Jan Beulich wrote:
>
> >>> On 24.01.19 at 03:04, wrote:
> > @@ -31,13 +32,27 @@
> > #ifdef CONFIG_COMPAT
> > #include
> > CHECK_argo_addr;
> > +CHECK_argo_register_ring;
> > CHECK_argo_ring;
> > #endif
>
> What about struct xen_argo_ring_message_header?
ack
On Mon, Jan 28, 2019 at 3:29 AM Jan Beulich wrote:
>
> >>> On 24.01.19 at 03:04, wrote:
> > --- a/xen/include/public/argo.h
> > +++ b/xen/include/public/argo.h
> > @@ -46,6 +46,34 @@ typedef uint32_t xen_argo_port_t;
> > /* gfn type: 64-bit on all architectures to aid avoiding a compat ABI */
>
Presence is gated upon CONFIG_ARGO.
Registers the hypercall previously reserved for this.
Takes 5 arguments, does nothing and returns -ENOSYS.
Implementation will provide a compat ABI so COMPAT_CALL is the
macro used in the hypercall tables.
Signed-off-by: Christopher Clark
---
v6 dropped Jan
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:
entry
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
errno: add POSIX error codes
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
Reviewed-by: Roger Pau Monné
Tested-by: Chris Pa
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
---
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
Tested-by: Chris Patterson
---
v6 Chris: apply const to avc_audit_data sdom and tdom struct members
v6 Chris: apply const to args in dummy.h fu
se in this series (which is based on [1]).
Signed-off-by: Christopher Clark
Acked-by: Lars Kurth
Reviewed-by: Ross Philipson
Tested-by: Chris Patterson
---
v6 #09 Jan: introduce compat ABI
v6 #04 Jan: xlat.lst: move argo struct entries to alphabetical position
v6 #04 Roger: use list_for_each_entry{
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
Tested-by: Chris Patterson
---
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
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
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'
1"
The p2m type of the memory supplied by the guest for the ring must be
p2m_ram_rw and the memory will be pinned as PGT_writable_page while the ring
is registered.
This hypercall op and its interface currently only supports 4K-sized pages.
Signed-off-by: Christopher Clark
Tested-by: C
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
Tested-by: Chris Patterson
---
v6 #09 Jan: add compat ABI
v6 #04 Jan: xlat.lst: move argo struct entries to alphabetical position
v6: rewrap co
Default policy: allow.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Acked-by: Daniel De Graaf
Tested-by: Chris Patterson
---
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 implementati
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
Tested-by: Chris Patterson
---
v6 #09 Jan: add compat ABI
v6
ed hypervisor argo communication.
Signed-off-by: Christopher Clark
Tested-by: Chris Patterson
---
v6 #09 Jan: introduce compat ABI
v6 : hoist read of iovs from guest from ringbuf_insert to do_argo_op
v6 : simplify init of the NULL_hnd in ringbuf_insert
v6 #09 Jan: xlat.lst remove argo_iov as genera
Signed-off-by: Christopher Clark
---
v5 whitespace: tabs
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e99d39e..a0cda4f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -158,6 +158,13 @@ S: Supported
F: xen/arch/x86/hvm/svm/
F: xen
On Thu, Jan 31, 2019 at 3:01 AM Roger Pau Monné wrote:
>
> On Thu, Jan 31, 2019 at 03:35:23AM -0700, Jan Beulich wrote:
> > >>> On 31.01.19 at 11:18, wrote:
> > > On Wed, Jan 30, 2019 at 08:10:28PM -0800, Christopher Clark wrote:
> > >> On Tu
On Thu, Jan 31, 2019 at 6:49 AM Roger Pau Monné wrote:
>
> On Wed, Jan 30, 2019 at 08:28:09PM -0800, Christopher Clark wrote:
> > Initialises basic data structures and performs teardown of argo state
> > for domain shutdown.
> >
> > Inclusion of the Argo implementati
On Thu, Jan 31, 2019 at 5:39 AM Roger Pau Monné wrote:
>
> On Wed, Jan 30, 2019 at 08:05:30PM -0800, Christopher Clark wrote:
> > On Tue, Jan 22, 2019 at 6:19 AM Roger Pau Monné
> > wrote:
> > >
> > > On Mon, Jan 21, 2019 at 01:59:40AM -0800, Christopher
n Thu, Jan 31, 2019 at 8:19 AM Roger Pau Monné wrote:
>
> On Wed, Jan 30, 2019 at 08:28:12PM -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 Thu, Jan 31, 2019 at 8:38 AM Roger Pau Monné wrote:
>
> On Wed, Jan 30, 2019 at 08:28:14PM -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 Thu, Jan 31, 2019 at 8:45 AM Roger Pau Monné wrote:
>
> On Wed, Jan 30, 2019 at 08:28:15PM -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 Wed, Jan 30, 2019 at 8:14 PM Christopher Clark
wrote:
>
> On Fri, Jan 25, 2019 at 10:55 AM Christopher Clark
> wrote:
> >
> > On Thu, Jan 24, 2019 at 2:08 AM Julien Grall wrote:
> > > [...]
> > > Sorry for noticing quite late in the process. Don'
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 Mon, Feb 4, 2019 at 6:41 AM Jan Beulich wrote:
>
> >>> On 31.01.19 at 05:28, wrote:
> > @@ -1237,6 +1864,54 @@ compat_argo_op(unsigned int cmd,
> > XEN_GUEST_HANDLE_PARAM(void) arg1,
> > break;
> > }
> >
> > +case XEN_ARGO_OP_sendv:
> > +{
> > +xen_argo_send_addr
On Mon, Feb 4, 2019 at 7:12 AM Jan Beulich wrote:
>
> >>> On 31.01.19 at 05:28, wrote:
> > @@ -1802,6 +2157,21 @@ do_argo_op(unsigned int cmd,
> > XEN_GUEST_HANDLE_PARAM(void) arg1,
> > break;
> > }
> >
> > +case XEN_ARGO_OP_notify:
> > +{
> > +XEN_GUEST_HANDLE_PARA
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
se in this series (which is based on [1]).
Signed-off-by: Christopher Clark
Acked-by: Lars Kurth
Reviewed-by: Ross Philipson
Tested-by: Chris Patterson
Reviewed-by: Roger Pau Monné
---
v7 #02 Julien/Jan/Stefano: apply range check to numeric hypercall args
v7 #10 Jan: avoid code duplication: forw
1"
The p2m type of the memory supplied by the guest for the ring must be
p2m_ram_rw and the memory will be pinned as PGT_writable_page while the ring
is registered.
This hypercall op and its interface currently only supports 4K-sized pages.
Signed-off-by: Christopher Clark
Tested-by: Chri
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:
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
---
Presence is gated upon CONFIG_ARGO.
Registers the hypercall previously reserved for this.
Takes 5 arguments, does nothing and returns -ENOSYS.
Implementation will provide a compat ABI so COMPAT_CALL is the selected
macro for the hypercall tables.
Signed-off-by: Christopher Clark
Acked-by: Jan
version of a design document for Argo
- based on work previously sent to the mailing list, covers
the implementation's granular locking
* Adds a SUPPORT.md section for the feature and Experimental statement
Christopher Clark (17):
argo: Introduce the Kconfig option to govern inclusi
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
Reviewed-by: Roger Pau Monné
Tested-by: Chris Pa
ed hypervisor argo communication.
Signed-off-by: Christopher Clark
Tested-by: Chris Patterson
Reviewed-by: Roger Pau Monné
---
v7 #09 Jan: avoid code duplication, forward compat ops to native
v7 self: tidy XEN_ARGO_MAX_RING_SIZE comment in the public header
v7 #09 Jan: drop stale XEN_ARGO_MAXIOV c
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
Tested-by: Chris Patterson
---
v6 Chris: apply const to avc_audit_data sdom and tdom struct members
v6 Chris: apply const to args in dummy.h fu
Default policy: allow.
Signed-off-by: Christopher Clark
Reviewed-by: Paul Durrant
Acked-by: Daniel De Graaf
Tested-by: Chris Patterson
---
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 implementati
Status: Experimental
Signed-off-by: Christopher Clark
---
SUPPORT.md | 4
1 file changed, 4 insertions(+)
diff --git a/SUPPORT.md b/SUPPORT.md
index 7c8493c..19fc8d7 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -617,6 +617,10 @@ Virtual Performance Management Unit for HVM guests
Disabled
Signed-off-by: Christopher Clark
Acked-by: Daniel De Graaf
Tested-by: Chris Patterson
---
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
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
Tested-by: Chris Patterson
Reviewed-by: Roger Pau Monné
---
v7 #09 Jan: avoid code duplication, forward compat ops to native
v7 #10
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
Tested-by: Chris Patterson
---
v7 self: fix return of check
Signed-off-by: Christopher Clark
Reviewed-by: Roger Pau Monné
---
v7 #015 Roger: Add Reviewed-by
v5 whitespace: tabs
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e99d39e..a0cda4f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -158,6
Document provides a brief introduction to the Argo interdomain
communication mechanism and a detailed description of the granular
locking used within the Argo implementation.
Signed-off-by: Christopher Clark
---
docs/designs/argo.pandoc | 448 +++
1
On Wed, Feb 6, 2019 at 10:28 AM Julien Grall wrote:
>
> Hi,
>
> On 2/6/19 8:55 AM, Christopher Clark wrote:
> > +/*
> > + * XEN_ARGO_OP_notify
> > + *
> > + * Asks Xen for information about other rings in the system.
> > + *
> > + * ent-&
On Wed, Feb 6, 2019 at 2:31 AM Roger Pau Monné wrote:
>
> On Wed, Feb 06, 2019 at 12:55:08AM -0800, Christopher Clark wrote:
> > Document provides a brief introduction to the Argo interdomain
> > communication mechanism and a detailed description of the granular
> > lock
On Wed, Nov 28, 2018 at 2:26 AM Juergen Gross wrote:
>
> = Projects =
>
> == Hypervisor ==
>
> * Argo (inter-VM communication)
I have a patch series for this that is approaching readiness to post.
It does touch ARM (slightly) so will be posted this week to meet the
ARM deadline.
Christopher
__
Applied to both x86 and ARM headers.
Signed-off-by: Christopher Clark
---
xen/include/asm-arm/guest_access.h | 25 +
xen/include/asm-x86/guest_access.h | 29 +
xen/include/xen/guest_access.h | 3 +++
3 files changed, 57 insertions
A convenience for working on development of the argo subsystem:
toggling a local #define variable turns on just the debug messages
in this subsystem.
printk("argo: " format, ## args )
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 13 +
1 file changed, 13
Takes a single argument: a handle to the registered ring.
The ring's entry is removed from the hashtable of registered rings;
any entries for pending notifications are removed; and the ring is
unmapped from Xen's address space.
Signed-off-by: Christopher Clark
---
xen/com
ative choice made to defer the need to
reason about the other p2m types with this commit.
argo_pfn_t type is introduced here to create a pfn_t type that is 64-bit on
all architectures, to assist with avoiding the need to add a compat ABI.
Signed-off-by: Christopher Clark
---
xen/common/a
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
---
xen/common/argo.c | 4 ++--
xen/include/xsm/dummy.h
Very basic implementation: a fixed limit of 128.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 17 +
1 file changed, 17 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index ca48032..cc908f4 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
descriptive strings in order
to make it obvious to an administrator that this has potential security impact.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 15 +++
xen/include/xsm/dummy.h | 15 +++
xen/include/xsm/xsm.h
introducing any
further changes to add another channel type.
In accordance with recent work on _domain_destroy, argo_destroy is idempotent.
Adds two new fields to struct domain:
rwlock_t argo_lock;
struct argo_domain *argo;
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 277
Signed-off-by: Christopher Clark
---
xen/common/Kconfig | 20
1 file changed, 20 insertions(+)
diff --git a/xen/common/Kconfig b/xen/common/Kconfig
index 68132a3..a06ddcb 100644
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -200,6 +200,26 @@ config LATE_HWDOM
Signed-off-by: Christopher Clark
---
xen/include/public/xen.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h
index 0a27546..8dc032b 100644
--- a/xen/include/public/xen.h
+++ b/xen/include/public/xen.h
@@ -982,6 +982,8 @@ typedef struct
ng integer overflow is important.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 528 ++
xen/include/public/argo.h | 59 ++
2 files changed, 587 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 387e650..0c39
reserved space intentionally to for future alternative
notification mechanism to return data about both an IRQ number and bound VCPU.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 57 +++
xen/include/public/argo.h | 28
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 0858fb2..39778fd 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -845,6 +845,17 @@ argo_fill_ring_data(struct domain
Presence is gated upon CONFIG_ARGO.
Registers the hypercall previously reserved for this.
Takes 5 arguments, does nothing and returns -ENOSYS.
Will be avoiding a compat ABI by using fixed-size types in hypercall ops.
Signed-off-by: Christopher Clark
---
xen/arch/x86/guest/hypercall_page.S
arm port of commit bb544585137259545d4adc9afe6eed8dc7c7376d
This helper turns a field of a GUEST_HANDLE into a GUEST_HANDLE.
Signed-off-by: Christopher Clark
---
xen/include/asm-arm/guest_access.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/include/asm-arm/guest_access.h
b/xen
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
describes these codes thus:
EMSGSIZE : "Message too large"
ECONNREFUSED : "Connection refused".
Signed-off-by: Christopher Clark
---
xen/include/public/errno.h | 2 ++
1 file changed, 2 inserti
Default policy: allow.
Signed-off-by: Christopher Clark
---
xen/include/xsm/dummy.h | 5 +
xen/include/xsm/xsm.h | 6 ++
xen/xsm/dummy.c | 1 +
xen/xsm/flask/hooks.c | 7 +++
xen/xsm/flask/policy/access_vectors | 2 ++
5
Allocates an IPI-bound event channel on vcpu0 for specified domain.
Is able to bypass the existence check on vcpu number since vcpu 0
should always exist. Bypass is required at the point of use by Argo.
Signed-off-by: Christopher Clark
---
xen/common/event_channel.c | 35
Default to disabled.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 19 +++
1 file changed, 19 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 1872d37..82fab36 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -28,6 +28,10
Very basic implementation: a fixed limit of 256.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index cc908f4..0858fb2 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -27,6 +27,7
rch to identify notification causes.
Additional items will be noted on the Xen wiki.
== Credits
Contributors to the design and implementation of this software include:
James McKenzie, Jean Guyader, Ross Philipson, Christopher Clark
with the support of the OpenXT Project.
Thanks are due f
so that the guest may re-register the rings on resume with current mappings.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 69 ++
xen/common/domain.c| 9 +++
xen/include/xen/argo.h | 2 ++
3 files changed, 80 insertions
software to be
installed within these guests in order to use Argo. VIRQ signalling is also
the method that has been in use for the longest period with this hypercall
in both XenClient and OpenXT.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 39
used as an
array index.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 39778fd..fa969ab 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -23,6 +23,7 @@
#include
quent notifications.
Signed-off-by: Christopher Clark
---
xen/common/argo.c | 326 ++
xen/include/public/argo.h | 62 +
2 files changed, 388 insertions(+)
diff --git a/xen/common/argo.c b/xen/common/argo.c
index 0c3972c..a171191 100644
To be used by Argo for delivery of notifications to some guests.
Signed-off-by: Christopher Clark
---
xen/common/event_channel.c | 2 +-
xen/include/xen/event.h| 7 +++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/xen/common/event_channel.c b/xen/common/event_channel.c
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