From: Paul Durrant <Paul.Durrant@citrix.com>
To: 'Christopher Clark' <christopher.w.clark@gmail.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Wei Liu <wei.liu2@citrix.com>,
Ross Philipson <ross.philipson@gmail.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Daniel Smith <dpsmith@apertussolutions.com>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
Jason Andryuk <jandryuk@gmail.com>, "Tim (Xen.org)" <tim@xen.org>,
George Dunlap <George.Dunlap@citrix.com>,
Rich Persaud <persaur@gmail.com>,
James McKenzie <voreekf@madingley.org>,
Julien Grall <julien.grall@arm.com>,
Jan Beulich <jbeulich@suse.com>,
Ian Jackson <Ian.Jackson@citrix.com>,
Eric Chanudet <eric.chanudet@gmail.com>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: Re: [PATCH 03/25] argo: introduce the argo_message_op hypercall boilerplate
Date: Tue, 4 Dec 2018 09:44:26 +0000 [thread overview]
Message-ID: <fc376b38bb6e46099f047b480c9c19cf@AMSPEX02CL03.citrite.net> (raw)
In-Reply-To: <1543627984-21394-4-git-send-email-christopher.w.clark@gmail.com>
> -----Original Message-----
> From: Christopher Clark [mailto:christopher.w.clark@gmail.com]
> Sent: 01 December 2018 01:33
> To: xen-devel@lists.xenproject.org
> Cc: Jan Beulich <jbeulich@suse.com>; Andrew Cooper
> <Andrew.Cooper3@citrix.com>; Wei Liu <wei.liu2@citrix.com>; Roger Pau
> Monne <roger.pau@citrix.com>; George Dunlap <George.Dunlap@citrix.com>;
> Ian Jackson <Ian.Jackson@citrix.com>; Julien Grall <julien.grall@arm.com>;
> Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>; Paul Durrant
> <Paul.Durrant@citrix.com>; Stefano Stabellini <sstabellini@kernel.org>;
> Tim (Xen.org) <tim@xen.org>; Rich Persaud <persaur@gmail.com>; Ross
> Philipson <ross.philipson@gmail.com>; Eric Chanudet
> <eric.chanudet@gmail.com>; James McKenzie <voreekf@madingley.org>; Jason
> Andryuk <jandryuk@gmail.com>; Daniel Smith <dpsmith@apertussolutions.com>
> Subject: [PATCH 03/25] argo: introduce the argo_message_op hypercall
> boilerplate
>
> 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.
You appear to be using handles, so will you not need compat code to deal with those?
Paul
>
> Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
> ---
> xen/arch/x86/guest/hypercall_page.S | 2 +-
> xen/arch/x86/hvm/hypercall.c | 3 +++
> xen/arch/x86/hypercall.c | 3 +++
> xen/arch/x86/pv/hypercall.c | 3 +++
> xen/common/Makefile | 1 +
> xen/common/argo.c | 28 ++++++++++++++++++++++++++++
> xen/include/public/xen.h | 2 +-
> xen/include/xen/hypercall.h | 9 +++++++++
> 8 files changed, 49 insertions(+), 2 deletions(-)
> create mode 100644 xen/common/argo.c
>
> diff --git a/xen/arch/x86/guest/hypercall_page.S
> b/xen/arch/x86/guest/hypercall_page.S
> index fdd2e72..6c56d66 100644
> --- a/xen/arch/x86/guest/hypercall_page.S
> +++ b/xen/arch/x86/guest/hypercall_page.S
> @@ -59,7 +59,7 @@ DECLARE_HYPERCALL(sysctl)
> DECLARE_HYPERCALL(domctl)
> DECLARE_HYPERCALL(kexec_op)
> DECLARE_HYPERCALL(tmem_op)
> -DECLARE_HYPERCALL(xc_reserved_op)
> +DECLARE_HYPERCALL(argo_message_op)
> DECLARE_HYPERCALL(xenpmu_op)
>
> DECLARE_HYPERCALL(arch_0)
> diff --git a/xen/arch/x86/hvm/hypercall.c b/xen/arch/x86/hvm/hypercall.c
> index 19d1263..ee3c9f1 100644
> --- a/xen/arch/x86/hvm/hypercall.c
> +++ b/xen/arch/x86/hvm/hypercall.c
> @@ -134,6 +134,9 @@ static const hypercall_table_t hvm_hypercall_table[] =
> {
> #ifdef CONFIG_TMEM
> HYPERCALL(tmem_op),
> #endif
> +#ifdef CONFIG_ARGO
> + HYPERCALL(argo_message_op),
> +#endif
> COMPAT_CALL(platform_op),
> #ifdef CONFIG_PV
> COMPAT_CALL(mmuext_op),
> diff --git a/xen/arch/x86/hypercall.c b/xen/arch/x86/hypercall.c
> index 032de8f..7da7e89 100644
> --- a/xen/arch/x86/hypercall.c
> +++ b/xen/arch/x86/hypercall.c
> @@ -64,6 +64,9 @@ const hypercall_args_t
> hypercall_args_table[NR_hypercalls] =
> ARGS(domctl, 1),
> ARGS(kexec_op, 2),
> ARGS(tmem_op, 1),
> +#ifdef CONFIG_ARGO
> + ARGS(argo_message_op, 5),
> +#endif
> ARGS(xenpmu_op, 2),
> #ifdef CONFIG_HVM
> ARGS(hvm_op, 2),
> diff --git a/xen/arch/x86/pv/hypercall.c b/xen/arch/x86/pv/hypercall.c
> index 5d11911..c3fd555 100644
> --- a/xen/arch/x86/pv/hypercall.c
> +++ b/xen/arch/x86/pv/hypercall.c
> @@ -77,6 +77,9 @@ const hypercall_table_t pv_hypercall_table[] = {
> #ifdef CONFIG_TMEM
> HYPERCALL(tmem_op),
> #endif
> +#ifdef CONFIG_ARGO
> + HYPERCALL(argo_message_op),
> +#endif
> HYPERCALL(xenpmu_op),
> #ifdef CONFIG_HVM
> HYPERCALL(hvm_op),
> diff --git a/xen/common/Makefile b/xen/common/Makefile
> index ffdfb74..8c65c6f 100644
> --- a/xen/common/Makefile
> +++ b/xen/common/Makefile
> @@ -1,3 +1,4 @@
> +obj-$(CONFIG_ARGO) += argo.o
> obj-y += bitmap.o
> obj-y += bsearch.o
> obj-$(CONFIG_CORE_PARKING) += core_parking.o
> diff --git a/xen/common/argo.c b/xen/common/argo.c
> new file mode 100644
> index 0000000..76017d4
> --- /dev/null
> +++ b/xen/common/argo.c
> @@ -0,0 +1,28 @@
> +/************************************************************************
> ******
> + * Argo : Hypervisor-Mediated data eXchange
> + *
> + * Derived from v4v, the version 2 of v2v.
> + *
> + * Copyright (c) 2010, Citrix Systems
> + * Copyright (c) 2018, BAE Systems
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
> USA
> + */
> +
> +#include <xen/errno.h>
> +#include <xen/guest_access.h>
> +
> +long
> +do_argo_message_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg1,
> + XEN_GUEST_HANDLE_PARAM(void) arg2,
> + uint32_t arg3, uint32_t arg4)
> +{
> + return -ENOSYS;
> +}
> diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h
> index 68ee098..0a27546 100644
> --- a/xen/include/public/xen.h
> +++ b/xen/include/public/xen.h
> @@ -118,7 +118,7 @@ DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
> #define __HYPERVISOR_domctl 36
> #define __HYPERVISOR_kexec_op 37
> #define __HYPERVISOR_tmem_op 38
> -#define __HYPERVISOR_xc_reserved_op 39 /* reserved for XenClient */
> +#define __HYPERVISOR_argo_message_op 39
> #define __HYPERVISOR_xenpmu_op 40
> #define __HYPERVISOR_dm_op 41
>
> diff --git a/xen/include/xen/hypercall.h b/xen/include/xen/hypercall.h
> index cc99aea..112514c 100644
> --- a/xen/include/xen/hypercall.h
> +++ b/xen/include/xen/hypercall.h
> @@ -136,6 +136,15 @@ do_tmem_op(
> XEN_GUEST_HANDLE_PARAM(tmem_op_t) uops);
> #endif
>
> +#ifdef CONFIG_ARGO
> +extern long do_argo_message_op(
> + int cmd,
> + XEN_GUEST_HANDLE_PARAM(void) arg1,
> + XEN_GUEST_HANDLE_PARAM(void) arg2,
> + uint32_t arg3,
> + uint32_t arg4);
> +#endif
> +
> extern long
> do_xenoprof_op(int op, XEN_GUEST_HANDLE_PARAM(void) arg);
>
> --
> 2.1.4
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next prev parent reply other threads:[~2018-12-04 9:44 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-01 1:32 [PATCH 00/25] Argo: hypervisor-mediated interdomain communication Christopher Clark
2018-12-01 1:32 ` [PATCH 01/25] xen/evtchn: expose evtchn_bind_ipi_vcpu0_domain for use within Xen Christopher Clark
2018-12-03 16:20 ` Jan Beulich
2018-12-04 9:17 ` Christopher Clark
2018-12-01 1:32 ` [PATCH 02/25] argo: Introduce the Kconfig option to govern inclusion of Argo Christopher Clark
2018-12-03 15:51 ` Jan Beulich
2018-12-04 9:12 ` Christopher Clark
2018-12-01 1:32 ` [PATCH 03/25] argo: introduce the argo_message_op hypercall boilerplate Christopher Clark
2018-12-04 9:44 ` Paul Durrant [this message]
2018-12-20 5:13 ` Christopher Clark
2018-12-01 1:32 ` [PATCH 04/25] argo: define argo_dprintk for subsystem debugging Christopher Clark
2018-12-03 15:59 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 05/25] argo: Add initial argo_init and argo_destroy Christopher Clark
2018-12-04 9:12 ` Paul Durrant
2018-12-13 13:16 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 06/25] argo: Xen command line parameter 'argo': bool to enable/disable Christopher Clark
2018-12-04 9:18 ` Paul Durrant
2018-12-04 11:35 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 07/25] xen (ARM, x86): add errno-returning functions for copy Christopher Clark
2018-12-04 9:35 ` Paul Durrant
2018-12-12 16:01 ` Roger Pau Monné
2018-12-20 5:16 ` Christopher Clark
2018-12-20 8:45 ` Jan Beulich
2018-12-20 12:57 ` Roger Pau Monné
2018-12-01 1:32 ` [PATCH 08/25] xen: define XEN_GUEST_HANDLE_NULL as null XEN_GUEST_HANDLE Christopher Clark
2018-12-04 11:39 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 09/25] errno: add POSIX error codes EMSGSIZE, ECONNREFUSED to the ABI Christopher Clark
2018-12-03 15:42 ` Jan Beulich
2018-12-04 9:10 ` Christopher Clark
2018-12-04 10:04 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 10/25] arm: introduce guest_handle_for_field() Christopher Clark
2018-12-04 9:46 ` Paul Durrant
2018-12-01 1:32 ` [PATCH 11/25] xsm, argo: XSM control for argo register operation, argo_mac bootparam Christopher Clark
2018-12-04 9:52 ` Paul Durrant
2018-12-20 5:19 ` Christopher Clark
2018-12-01 1:32 ` [PATCH 12/25] xsm, argo: XSM control for argo message send operation Christopher Clark
2018-12-04 9:53 ` Paul Durrant
2018-12-01 1:32 ` [PATCH 13/25] argo: implement the register op Christopher Clark
2018-12-02 20:10 ` Julien Grall
2018-12-04 9:08 ` Christopher Clark
2018-12-05 17:20 ` Julien Grall
2018-12-05 22:35 ` Christopher Clark
2018-12-11 13:51 ` Julien Grall
2018-12-04 10:57 ` Paul Durrant
2018-12-12 9:48 ` Jan Beulich
2018-12-20 5:29 ` Christopher Clark
2018-12-20 8:29 ` Jan Beulich
2018-12-21 1:25 ` Christopher Clark
2018-12-21 7:28 ` Jan Beulich
2018-12-21 8:16 ` Christopher Clark
2018-12-21 8:53 ` Jan Beulich
2018-12-21 23:28 ` Christopher Clark
2018-12-12 16:47 ` Roger Pau Monné
2018-12-20 5:41 ` Christopher Clark
2018-12-20 8:51 ` Jan Beulich
2018-12-20 12:52 ` Roger Pau Monné
2018-12-21 23:05 ` Christopher Clark
2019-01-04 8:57 ` Roger Pau Monné
2019-01-04 13:22 ` Jan Beulich
2019-01-04 15:35 ` Roger Pau Monné
2019-01-04 15:47 ` Jan Beulich
2019-01-07 9:00 ` Roger Pau Monné
2019-01-09 16:15 ` Tamas K Lengyel
2019-01-09 16:23 ` Razvan Cojocaru
2019-01-09 16:34 ` Roger Pau Monné
2019-01-09 16:48 ` Razvan Cojocaru
2019-01-09 16:50 ` Tamas K Lengyel
2019-01-09 16:59 ` Roger Pau Monné
2019-01-09 17:03 ` Fwd: " Roger Pau Monné
2019-01-09 17:03 ` Razvan Cojocaru
2018-12-01 1:32 ` [PATCH 14/25] argo: implement the unregister op Christopher Clark
2018-12-04 11:10 ` Paul Durrant
2018-12-12 9:51 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 15/25] argo: implement the sendv op Christopher Clark
2018-12-04 11:22 ` Paul Durrant
2018-12-12 11:52 ` Jan Beulich
2018-12-20 5:58 ` Christopher Clark
2018-12-20 8:33 ` Jan Beulich
2019-01-04 8:13 ` Christopher Clark
2019-01-04 8:43 ` Roger Pau Monné
2019-01-04 13:37 ` Jan Beulich
2019-01-07 20:54 ` Christopher Clark
2018-12-01 1:32 ` [PATCH 16/25] argo: implement the notify op Christopher Clark
2018-12-13 14:06 ` Jan Beulich
2018-12-20 6:12 ` Christopher Clark
2018-12-20 8:39 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 17/25] xsm, argo: XSM control for any access to argo by a domain Christopher Clark
2018-12-01 1:32 ` [PATCH 18/25] argo: limit the max number of rings that a domain may register Christopher Clark
2018-12-13 14:08 ` Jan Beulich
2018-12-01 1:32 ` [PATCH 19/25] argo: limit the max number of notify requests in a single operation Christopher Clark
2018-12-01 1:32 ` [PATCH 20/25] argo, xsm: notify: don't describe rings that cannot be sent to Christopher Clark
2018-12-01 1:33 ` [PATCH 21/25] argo: add array_index_nospec to guard the result of the hash func Christopher Clark
2018-12-13 14:10 ` Jan Beulich
2018-12-01 1:33 ` [PATCH 22/25] xen/evtchn: expose send_guest_global_virq for use within Xen Christopher Clark
2018-12-13 14:12 ` Jan Beulich
2018-12-01 1:33 ` [PATCH 23/25] argo: signal x86 HVM and ARM via VIRQ Christopher Clark
2018-12-02 19:55 ` Julien Grall
2018-12-04 9:03 ` Christopher Clark
2018-12-04 9:16 ` Paul Durrant
2018-12-12 14:49 ` James
2018-12-11 14:15 ` Julien Grall
2018-12-13 14:16 ` Jan Beulich
2018-12-20 6:20 ` Christopher Clark
2018-12-01 1:33 ` [PATCH 24/25] argo: unmap rings on suspend and send signal to ring-owners on resume Christopher Clark
2018-12-13 14:26 ` Jan Beulich
2018-12-20 6:25 ` Christopher Clark
2018-12-01 1:33 ` [PATCH 25/25] argo: implement the get_config op to query notification config Christopher Clark
2018-12-13 14:32 ` Jan Beulich
2018-12-03 16:49 ` [PATCH 00/25] Argo: hypervisor-mediated interdomain communication Chris Patterson
2018-12-04 9:00 ` Christopher Clark
2018-12-11 22:13 ` Chris Patterson
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