powerpc/pseries: Remove confusing warning message.
Since commit1211ee61b4
("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:1211ee61b4
("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
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@ -1419,6 +1419,9 @@ void __init pseries_lpar_read_hblkrm_characteristics(void)
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unsigned char local_buffer[SPLPAR_TLB_BIC_MAXLENGTH];
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unsigned char local_buffer[SPLPAR_TLB_BIC_MAXLENGTH];
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int call_status, len, idx, bpsize;
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int call_status, len, idx, bpsize;
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if (!firmware_has_feature(FW_FEATURE_BLOCK_REMOVE))
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return;
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spin_lock(&rtas_data_buf_lock);
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spin_lock(&rtas_data_buf_lock);
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memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
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memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
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call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
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call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
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