From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: Karel Zak <kzak@redhat.com>, util-linux@vger.kernel.org
Cc: Stewart Smith <stewart@linux.vnet.ibm.com>
Subject: [PATCH] lscpu: read_hypervisor_dmi: only fallback to memory scan on x86/x86_64
Date: Tue, 4 Mar 2014 15:39:41 +1100 [thread overview]
Message-ID: <1393907981-24298-1-git-send-email-stewart@linux.vnet.ibm.com> (raw)
As the comment in the code says, this method is really only valid
on x86 and x86_64, so add a #ifdef for those architectures around
that code block.
This was causing "Program lscpu tried to access /dev/mem between f0000->100000."
warnings on some ppc64 machines.
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
---
sys-utils/lscpu-dmi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sys-utils/lscpu-dmi.c b/sys-utils/lscpu-dmi.c
index c416f8e..c82bfc1 100644
--- a/sys-utils/lscpu-dmi.c
+++ b/sys-utils/lscpu-dmi.c
@@ -258,6 +258,7 @@ int read_hypervisor_dmi(void)
free(buf);
memory_scan:
+#if defined(__x86_64__) || defined(__i386__)
/* Fallback to memory scan (x86, x86_64) */
buf = get_mem_chunk(0xF0000, 0x10000, _PATH_DEV_MEM);
if (!buf)
@@ -275,7 +276,7 @@ memory_scan:
if (rc >= 0)
break;
}
-
+#endif
done:
free(buf);
return rc;
--
1.8.5.3
next reply other threads:[~2014-03-04 4:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-04 4:39 Stewart Smith [this message]
2014-03-04 10:51 ` [PATCH] lscpu: read_hypervisor_dmi: only fallback to memory scan on x86/x86_64 Karel Zak
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