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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen staging] argo: introduce the argo_op hypercall boilerplate
commit 1ddc0d43c20cb1c1125d4d6cefc78624b2a9ccb7
Author: Christopher Clark <christopher.w.clark@xxxxxxxxx>
AuthorDate: Wed Feb 6 09:55:00 2019 +0100
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Feb 7 14:19:39 2019 +0100
argo: introduce the argo_op hypercall boilerplate
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 <christopher.clark6@xxxxxxxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
---
xen/arch/arm/traps.c | 3 +++
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 | 38 +++++++++++++++++++++++++++++++++++++
xen/include/public/xen.h | 2 +-
xen/include/xen/hypercall.h | 18 ++++++++++++++++++
9 files changed, 71 insertions(+), 2 deletions(-)
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 64a78d83a5..8741aa1d59 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -1401,6 +1401,9 @@ static arm_hypercall_t arm_hypercall_table[] = {
HYPERCALL(platform_op, 1),
HYPERCALL_ARM(vcpu_op, 3),
HYPERCALL(vm_assist, 2),
+#ifdef CONFIG_ARGO
+ HYPERCALL(argo_op, 5),
+#endif
};
#ifndef NDEBUG
diff --git a/xen/arch/x86/guest/hypercall_page.S
b/xen/arch/x86/guest/hypercall_page.S
index fdd2e72272..26afabf909 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_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 19d126377a..5bb1750595 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
+ COMPAT_CALL(argo_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 032de8f8f8..93e78600da 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_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 5d11911735..f452dd5c04 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
+ COMPAT_CALL(argo_op),
+#endif
HYPERCALL(xenpmu_op),
#ifdef CONFIG_HVM
HYPERCALL(hvm_op),
diff --git a/xen/common/Makefile b/xen/common/Makefile
index 56fc201b6b..59ac7ded6e 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 0000000000..dd2390d3f3
--- /dev/null
+++ b/xen/common/argo.c
@@ -0,0 +1,38 @@
+/******************************************************************************
+ * Argo : Hypervisor-Mediated data eXchange
+ *
+ * Derived from v4v, the version 2 of v2v.
+ *
+ * Copyright (c) 2010, Citrix Systems
+ * Copyright (c) 2018-2019 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_op(unsigned int cmd, XEN_GUEST_HANDLE_PARAM(void) arg1,
+ XEN_GUEST_HANDLE_PARAM(void) arg2, unsigned long raw_arg3,
+ unsigned long raw_arg4)
+{
+ return -ENOSYS;
+}
+
+#ifdef CONFIG_COMPAT
+long
+compat_argo_op(unsigned int cmd, XEN_GUEST_HANDLE_PARAM(void) arg1,
+ XEN_GUEST_HANDLE_PARAM(void) arg2, unsigned long arg3,
+ unsigned long arg4)
+{
+ return -ENOSYS;
+}
+#endif
diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h
index 1a56871d5d..b3f6491764 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_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 cc99aea57d..6154c48cb8 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_op(
+ unsigned int cmd,
+ XEN_GUEST_HANDLE_PARAM(void) arg1,
+ XEN_GUEST_HANDLE_PARAM(void) arg2,
+ unsigned long arg3,
+ unsigned long arg4);
+#endif
+
extern long
do_xenoprof_op(int op, XEN_GUEST_HANDLE_PARAM(void) arg);
@@ -197,6 +206,15 @@ extern int compat_multicall(
XEN_GUEST_HANDLE_PARAM(multicall_entry_compat_t) call_list,
uint32_t nr_calls);
+#ifdef CONFIG_ARGO
+extern long compat_argo_op(
+ unsigned int cmd,
+ XEN_GUEST_HANDLE_PARAM(void) arg1,
+ XEN_GUEST_HANDLE_PARAM(void) arg2,
+ unsigned long arg3,
+ unsigned long arg4);
+#endif
+
#include <compat/hvm/dm_op.h>
extern int
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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