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| author |   Ram Pai <linuxram@us.ibm.com> | 2019-08-19 23:13:14 -0300 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-08-30 09:54:35 +1000 |
| commit | 6a9c930bd7751bf0630d8b9b73b07af5c6842da6 (patch) | |
| tree | cf608fdb3f15838e9e9f4014f354fdc49f97bf5c /Documentation/admin-guide | |
| parent | powerpc: Add support for adding an ESM blob to the zImage wrapper (diff) | |
| download | linux-dev-6a9c930bd7751bf0630d8b9b73b07af5c6842da6.tar.xz linux-dev-6a9c930bd7751bf0630d8b9b73b07af5c6842da6.zip | |
powerpc/prom_init: Add the ESM call to prom_init
Make the Enter-Secure-Mode (ESM) ultravisor call to switch the VM to secure
mode. Pass kernel base address and FDT address so that the Ultravisor is
able to verify the integrity of the VM using information from the ESM blob.
Add "svm=" command line option to turn on switching to secure mode.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
[ andmike: Generate an RTAS os-term hcall when the ESM ucall fails. ]
Signed-off-by: Michael Anderson <andmike@linux.ibm.com>
[ bauerman: Cleaned up the code a bit. ]
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820021326.6884-5-bauerman@linux.ibm.com
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 6d495aab4d0b..4923d8f726e8 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4620,6 +4620,11 @@ /sys/power/pm_test). Only available when CONFIG_PM_DEBUG is set. Default value is 5. + svm= [PPC] + Format: { on | off | y | n | 1 | 0 } + This parameter controls use of the Protected + Execution Facility on pSeries. + swapaccount=[0|1] [KNL] Enable accounting of swap in memory resource controller if no parameter or 1 is given or disable |