[PATCH] powerpc/pseries: Report DLPAR capabilities

[PATCH] powerpc/pseries: Report DLPAR capabilities

[Nathan Fontenot]

As we add the ability to do DLPAR of additional devices through
the sysfs interface we need to know which devices are supported.
This adds the reporting of supported devices with a comma separated
list reported in the existing /sys/kernel/dlpar.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/dlpar.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 76caa4a..1152590 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -551,7 +551,13 @@ static ssize_t dlpar_store(struct class *class, struct class_attribute *attr,
 	return rc ? rc : count;
 }
 
-static CLASS_ATTR(dlpar, S_IWUSR, NULL, dlpar_store);
+static ssize_t dlpar_show(struct class *class, struct class_attribute *attr,
+			  char *buf)
+{
+	return sprintf(buf, "%s\n", "memory,cpu");
+}
+
+static CLASS_ATTR(dlpar, S_IWUSR | S_IRUSR, dlpar_show, dlpar_store);
 
 static int __init pseries_dlpar_init(void)
 {

Re: powerpc/pseries: Report DLPAR capabilities

[Michael Ellerman]

On Wed, 2017-01-11 at 17:00:58 UTC, Nathan Fontenot wrote:
> As we add the ability to do DLPAR of additional devices through
> the sysfs interface we need to know which devices are supported.
> This adds the reporting of supported devices with a comma separated
> list reported in the existing /sys/kernel/dlpar.
> 
> Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/673bc4354d42731018494bb69d63b6

cheers