diff options
| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2015-02-24 15:54:47 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-11-30 12:47:11 +0100 |
| commit | 7f16d7e787b731d9db273b822b4b8069102e57a6 (patch) | |
| tree | 0012fd4f28ccb75065f5da8b40dd8235b790665d /arch/s390/kernel/processor.c | |
| parent | 8dfd523f8523779210038264259546299a8398e9 (diff) | |
| download | op-kernel-dev-7f16d7e787b731d9db273b822b4b8069102e57a6.zip op-kernel-dev-7f16d7e787b731d9db273b822b4b8069102e57a6.tar.gz | |
s390: show virtualization support in /proc/cpuinfo
This patch exposes the SIE capability (aka virtualization support) via
/proc/cpuinfo -> "features" as "sie".
As we don't want to expose this hwcap via elf, let's add a second,
"internal"/non-elf capability list. The content is simply concatenated
to the existing features when printing /proc/cpuinfo.
We also add the defines to elf.h to keep the hwcap stuff at a common
place.
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/processor.c')
| -rw-r--r-- | arch/s390/kernel/processor.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 7ce00e7..647128d 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -61,6 +61,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp", "edat", "etf3eh", "highgprs", "te", "vx" }; + static const char * const int_hwcap_str[] = { + "sie" + }; unsigned long n = (unsigned long) v - 1; int i; @@ -75,6 +78,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) for (i = 0; i < ARRAY_SIZE(hwcap_str); i++) if (hwcap_str[i] && (elf_hwcap & (1UL << i))) seq_printf(m, "%s ", hwcap_str[i]); + for (i = 0; i < ARRAY_SIZE(int_hwcap_str); i++) + if (int_hwcap_str[i] && (int_hwcap & (1UL << i))) + seq_printf(m, "%s ", int_hwcap_str[i]); seq_puts(m, "\n"); show_cacheinfo(m); } |
