aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLaurent Dufour <ldufour@linux.ibm.com>2019-10-01 15:29:28 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2019-10-09 17:16:59 +1100
commit4ab8a485f7bc69e04e3e8d75f62bdcac5f4ed02e (patch)
tree8485e7a614bf8aef882cb07f20d2c8fb312d046a
parent18217da36103c25d87870624dfa569e6b9906a90 (diff)
powerpc/pseries: Remove confusing warning message.
Since commit 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate Characteristics"), a warning message is displayed when booting a guest on top of KVM: lpar: arch/powerpc/platforms/pseries/lpar.c pseries_lpar_read_hblkrm_characteristics Error calling get-system-parameter (0xfffffffd) This message is displayed because this hypervisor is not supporting the H_BLOCK_REMOVE hcall and thus is not exposing the corresponding feature. Reading the TLB Block Invalidate Characteristics should not be done if the feature is not exposed. Fixes: 1211ee61b4a8 ("powerpc/pseries: Read TLB Block Invalidate Characteristics") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191001132928.72555-1-ldufour@linux.ibm.com
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index b53359258d99..f87a5c64e24d 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -1419,6 +1419,9 @@ void __init pseries_lpar_read_hblkrm_characteristics(void)
unsigned char local_buffer[SPLPAR_TLB_BIC_MAXLENGTH];
int call_status, len, idx, bpsize;
+ if (!firmware_has_feature(FW_FEATURE_BLOCK_REMOVE))
+ return;
+
spin_lock(&rtas_data_buf_lock);
memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,

Privacy Policy