Hi,
On 18/07/17 12:41, vijay.kil...@gmail.com wrote:
From: Vijaya Kumar K <vijaya.ku...@cavium.com>
Delete numa-node-id and distance map from DOM0 DT
so that NUMA information is not exposed to DOM0.
This helps particularly to boot Node 1 devices
as if booting on Node0.
However this approach has limitation where memory allocation
for the devices should be local.
Also, do not expose numa distance node to DOM0.
Signed-off-by: Vijaya Kumar <vijaya.ku...@cavium.com>
---
xen/arch/arm/domain_build.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 1bec4fa..a7d6d3a 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -425,6 +425,10 @@ static int write_properties(struct domain *d, struct
kernel_info *kinfo,
}
}
+ /* Don't expose the property numa to the guest */
s/numa/NUMA/ and missing full stop.
+ if ( dt_property_name_is_equal(prop, "numa-node-id") )
+ continue;
+
/* Don't expose the property "xen,passthrough" to the guest */
if ( dt_property_name_is_equal(prop, "xen,passthrough") )
continue;
@@ -1177,6 +1181,11 @@ static int handle_node(struct domain *d, struct
kernel_info *kinfo,
DT_MATCH_TYPE("memory"),
/* The memory mapped timer is not supported by Xen. */
DT_MATCH_COMPATIBLE("arm,armv7-timer-mem"),
+ /*
+ * NUMA info is not exposed to Dom0.
Please use the term "hardware domain" and not Dom0 in new code.
+ * So, skip distance-map infomation
s/infomation/information/ and missing full stop.
+ */
+ DT_MATCH_COMPATIBLE("numa-distance-map-v1"),
{ /* sentinel */ },
};
static const struct dt_device_match timer_matches[] __initconst =
Cheers,
--
Julien Grall
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