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[for-4.19?,v6,9/9] tools/ocaml: Add altp2m_count parameter

Message ID f6fdce2ec0eb88a61be980b6eca55b543630118e.1718038855.git.w1benny@gmail.com (mailing list archive)
State New, archived
Headers show
Series x86: Make MAX_ALTP2M configurable | expand

Commit Message

Petr Beneš June 10, 2024, 5:10 p.m. UTC 
From: Petr Beneš <w1benny@gmail.com>

Allow developers using the OCaml bindings to set the altp2m_count parameter.

Signed-off-by: Petr Beneš <w1benny@gmail.com>
Acked-by: Christian Lindig <christian.lindig@cloud.com>
---
 tools/ocaml/libs/xc/xenctrl.ml      |  1 +
 tools/ocaml/libs/xc/xenctrl.mli     |  1 +
 tools/ocaml/libs/xc/xenctrl_stubs.c | 19 +++++++++++++++----
 3 files changed, 17 insertions(+), 4 deletions(-)

--
2.34.1
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Patch

diff --git a/tools/ocaml/libs/xc/xenctrl.ml b/tools/ocaml/libs/xc/xenctrl.ml
index 2690f9a923..a3e50ac394 100644
--- a/tools/ocaml/libs/xc/xenctrl.ml
+++ b/tools/ocaml/libs/xc/xenctrl.ml
@@ -86,6 +86,7 @@  type domctl_create_config =
     max_maptrack_frames: int;
     max_grant_version: int;
     altp2m_opts: int32;
+    altp2m_count: int32;
     vmtrace_buf_kb: int32;
     cpupool_id: int32;
     arch: arch_domainconfig;
diff --git a/tools/ocaml/libs/xc/xenctrl.mli b/tools/ocaml/libs/xc/xenctrl.mli
index febbe1f6ae..b97021d3d2 100644
--- a/tools/ocaml/libs/xc/xenctrl.mli
+++ b/tools/ocaml/libs/xc/xenctrl.mli
@@ -78,6 +78,7 @@  type domctl_create_config = {
   max_maptrack_frames: int;
   max_grant_version: int;
   altp2m_opts: int32;
+  altp2m_count: int32;
   vmtrace_buf_kb: int32;
   cpupool_id: int32;
   arch: arch_domainconfig;
diff --git a/tools/ocaml/libs/xc/xenctrl_stubs.c b/tools/ocaml/libs/xc/xenctrl_stubs.c
index e6c977521f..78ae4967e6 100644
--- a/tools/ocaml/libs/xc/xenctrl_stubs.c
+++ b/tools/ocaml/libs/xc/xenctrl_stubs.c
@@ -211,13 +211,22 @@  CAMLprim value stub_xc_domain_create(value xch_val, value wanted_domid, value co
 #define VAL_MAX_MAPTRACK_FRAMES Field(config, 7)
 #define VAL_MAX_GRANT_VERSION   Field(config, 8)
 #define VAL_ALTP2M_OPTS         Field(config, 9)
-#define VAL_VMTRACE_BUF_KB      Field(config, 10)
-#define VAL_CPUPOOL_ID          Field(config, 11)
-#define VAL_ARCH                Field(config, 12)
+#define VAL_ALTP2M_COUNT        Field(config, 10)
+#define VAL_VMTRACE_BUF_KB      Field(config, 11)
+#define VAL_CPUPOOL_ID          Field(config, 12)
+#define VAL_ARCH                Field(config, 13)

 	uint32_t domid = Int_val(wanted_domid);
+	uint32_t altp2m_opts = Int32_val(VAL_ALTP2M_OPTS);
+	uint32_t altp2m_nr = Int32_val(VAL_ALTP2M_COUNT);
 	uint64_t vmtrace_size = Int32_val(VAL_VMTRACE_BUF_KB);

+	if ( altp2m_opts != (uint16_t)altp2m_opts )
+		caml_invalid_argument("altp2m_opts");
+
+	if ( altp2m_nr != (uint16_t)altp2m_nr )
+		caml_invalid_argument("altp2m_count");
+
 	vmtrace_size = ROUNDUP(vmtrace_size << 10, XC_PAGE_SHIFT);
 	if ( vmtrace_size != (uint32_t)vmtrace_size )
 		caml_invalid_argument("vmtrace_buf_kb");
@@ -232,7 +241,8 @@  CAMLprim value stub_xc_domain_create(value xch_val, value wanted_domid, value co
 		.grant_opts =
 		    XEN_DOMCTL_GRANT_version(Int_val(VAL_MAX_GRANT_VERSION)),
 		.altp2m = {
-			.opts = Int32_val(VAL_ALTP2M_OPTS),
+			.opts = altp2m_opts,
+			.nr = altp2m_nr,
 		},
 		.vmtrace_size = vmtrace_size,
 		.cpupool_id = Int32_val(VAL_CPUPOOL_ID),
@@ -292,6 +302,7 @@  CAMLprim value stub_xc_domain_create(value xch_val, value wanted_domid, value co
 #undef VAL_ARCH
 #undef VAL_CPUPOOL_ID
 #undef VAL_VMTRACE_BUF_KB
+#undef VAL_ALTP2M_COUNT
 #undef VAL_ALTP2M_OPTS
 #undef VAL_MAX_GRANT_VERSION
 #undef VAL_MAX_MAPTRACK_FRAMES