* [PATCH] xen/arm: domain_build: Add PSCI 1.0 compatibility
@ 2016-04-20 13:32 Dirk Behme
2016-04-20 13:43 ` Julien Grall
0 siblings, 1 reply; 2+ messages in thread
From: Dirk Behme @ 2016-04-20 13:32 UTC (permalink / raw)
To: xen-devel; +Cc: Dirk Behme, julien.grall, sstabellini
Add PSCI 1.0 compatibility strings to make Xen behave correctly with
device trees having
compatible = "arm,psci-1.0";
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
---
xen/arch/arm/domain_build.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index aba714c..f65bc46 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -666,6 +666,7 @@ static int make_psci_node(void *fdt, const struct dt_device_node *parent)
{
int res;
const char compat[] =
+ "arm,psci-1.0""\0"
"arm,psci-0.2""\0"
"arm,psci";
@@ -1190,6 +1191,7 @@ static int handle_node(struct domain *d, struct kernel_info *kinfo,
DT_MATCH_COMPATIBLE("multiboot,module"),
DT_MATCH_COMPATIBLE("arm,psci"),
DT_MATCH_COMPATIBLE("arm,psci-0.2"),
+ DT_MATCH_COMPATIBLE("arm,psci-1.0"),
DT_MATCH_COMPATIBLE("arm,cortex-a7-pmu"),
DT_MATCH_COMPATIBLE("arm,cortex-a15-pmu"),
DT_MATCH_COMPATIBLE("arm,armv8-pmuv3"),
--
2.8.0
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^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] xen/arm: domain_build: Add PSCI 1.0 compatibility
2016-04-20 13:32 [PATCH] xen/arm: domain_build: Add PSCI 1.0 compatibility Dirk Behme
@ 2016-04-20 13:43 ` Julien Grall
0 siblings, 0 replies; 2+ messages in thread
From: Julien Grall @ 2016-04-20 13:43 UTC (permalink / raw)
To: Dirk Behme, xen-devel; +Cc: sstabellini
Hello Dirk,
On 20/04/16 14:32, Dirk Behme wrote:
> Add PSCI 1.0 compatibility strings to make Xen behave correctly with
> device trees having
>
> compatible = "arm,psci-1.0";
You need to explain in the commit message what is the correct behavior.
I.e Xen needs to blacklist any PSCI 1.0 node as it will be recreated for
DOM0.
> Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
> ---
> xen/arch/arm/domain_build.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
> index aba714c..f65bc46 100644
> --- a/xen/arch/arm/domain_build.c
> +++ b/xen/arch/arm/domain_build.c
> @@ -666,6 +666,7 @@ static int make_psci_node(void *fdt, const struct dt_device_node *parent)
> {
> int res;
> const char compat[] =
> + "arm,psci-1.0""\0"
DOM0 will use the virtual PSCI implementation in Xen (see
arch/arm/vpsci.c). This implementation only supports v0.1 and v0.2.
> "arm,psci-0.2""\0"
> "arm,psci";
>
> @@ -1190,6 +1191,7 @@ static int handle_node(struct domain *d, struct kernel_info *kinfo,
> DT_MATCH_COMPATIBLE("multiboot,module"),
> DT_MATCH_COMPATIBLE("arm,psci"),
> DT_MATCH_COMPATIBLE("arm,psci-0.2"),
> + DT_MATCH_COMPATIBLE("arm,psci-1.0"),
> DT_MATCH_COMPATIBLE("arm,cortex-a7-pmu"),
> DT_MATCH_COMPATIBLE("arm,cortex-a15-pmu"),
> DT_MATCH_COMPATIBLE("arm,armv8-pmuv3"),
>
Regards,
--
Julien Grall
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