diff options
| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2015-02-24 17:54:47 +0300 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-11-30 14:47:11 +0300 |
| commit | 7f16d7e787b731d9db273b822b4b8069102e57a6 (patch) | |
| tree | 0012fd4f28ccb75065f5da8b40dd8235b790665d /arch/s390/include | |
| parent | 8dfd523f8523779210038264259546299a8398e9 (diff) | |
| download | linux-7f16d7e787b731d9db273b822b4b8069102e57a6.tar.xz | |
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/include')
| -rw-r--r-- | arch/s390/include/asm/elf.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index bab6739a1154..08e34a5dc909 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -104,6 +104,9 @@ #define HWCAP_S390_TE 1024 #define HWCAP_S390_VXRS 2048 +/* Internal bits, not exposed via elf */ +#define HWCAP_INT_SIE 1UL + /* * These are used to set parameters in the core dumps. */ @@ -169,6 +172,10 @@ extern unsigned int vdso_enabled; extern unsigned long elf_hwcap; #define ELF_HWCAP (elf_hwcap) +/* Internal hardware capabilities, not exposed via elf */ + +extern unsigned long int_hwcap; + /* This yields a string that ld.so will use to load implementation specific libraries for optimization. This is more specific in intent than poking at uname or /proc/cpuinfo. |