diff options
| author | Tom Hromatka <tom.hromatka@oracle.com> | 2018-04-26 10:54:08 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-05 11:24:55 -0700 |
| commit | 873c38a4249c9204f7b13e782d1ad0d8767aa22a (patch) | |
| tree | f400e648aa7da5f5e0654b00fcf6be16603a597e /drivers/char/Kconfig | |
| parent | fff75eb2a08c2ac96404a2d79685668f3cf5a7a3 (diff) | |
char: sparc64: Add privileged ADI driver
SPARC M7 and newer processors utilize ADI to version and
protect memory. This driver is capable of reading/writing
ADI/MCD versions from privileged user space processes.
Addresses in the adi file are mapped linearly to physical
memory at a ratio of 1:adi_blksz. Thus, a read (or write)
of offset K in the file operates upon the ADI version at
physical address K * adi_blksz. The version information
is encoded as one version per byte. Intended consumers
are makedumpfile and crash.
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/char/Kconfig')
| -rw-r--r-- | drivers/char/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index e538061eadcb..410c30c42120 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -540,5 +540,17 @@ source "drivers/s390/char/Kconfig" source "drivers/char/xillybus/Kconfig" +config ADI + tristate "SPARC Privileged ADI driver" + depends on SPARC64 + default m + help + SPARC M7 and newer processors utilize ADI (Application Data + Integrity) to version and protect memory. This driver provides + read/write access to the ADI versions for privileged processes. + This feature is also known as MCD (Memory Corruption Detection) + and SSM (Silicon Secured Memory). Intended consumers of this + driver include crash and makedumpfile. + endmenu |