[PATCH] powerpc/pseries/vas: Don't print an error when VAS is unavailable
Nicholas Piggin
npiggin at gmail.com
Fri Nov 26 16:21:33 AEDT 2021
KVM does not support VAS so guests always print a useless error on boot
vas: HCALL(398) error -2, query_type 0, result buffer 0x57f2000
Change this to only print the message if the error is not H_FUNCTION.
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
arch/powerpc/platforms/pseries/vas.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c
index b043e3936d21..734523e2272f 100644
--- a/arch/powerpc/platforms/pseries/vas.c
+++ b/arch/powerpc/platforms/pseries/vas.c
@@ -151,8 +151,15 @@ int h_query_vas_capabilities(const u64 hcall, u8 query_type, u64 result)
if (rc == H_SUCCESS)
return 0;
- pr_err("HCALL(%llx) error %ld, query_type %u, result buffer 0x%llx\n",
- hcall, rc, query_type, result);
+ /* H_FUNCTION means HV does not support VAS so don't print an error */
+ if (rc != H_FUNCTION) {
+ pr_err("%s error %ld, query_type %u, result buffer 0x%llx\n",
+ (hcall == H_QUERY_VAS_CAPABILITIES) ?
+ "H_QUERY_VAS_CAPABILITIES" :
+ "H_QUERY_NX_CAPABILITIES",
+ rc, query_type, result);
+ }
+
return -EIO;
}
EXPORT_SYMBOL_GPL(h_query_vas_capabilities);
--
2.23.0
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