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| author |   Vasily Gorbik <gor@linux.ibm.com> | 2019-04-01 19:11:08 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-10 17:47:22 +0200 |
| commit | 093ddccb55157f909f203f9e50bce0c24431e791 (patch) | |
| tree | 6054e991d886fc21f2387fb66d7ed2f9640646b1 /arch/s390/boot/ipl_parm.c | |
| parent | s390/protvirt: add memory sharing for diag 308 set/store (diff) | |
| download | linux-dev-093ddccb55157f909f203f9e50bce0c24431e791.tar.xz linux-dev-093ddccb55157f909f203f9e50bce0c24431e791.zip | |
s390/protvirt: block kernel command line alteration
Disallow kernel command line alteration via ipl parameter block if
running in protected virtualization environment.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index 385d0c7a9635..1900670a83fd 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -144,7 +144,7 @@ void setup_boot_command_line(void) strcpy(early_command_line, strim(COMMAND_LINE)); /* append IPL PARM data to the boot command line */ - if (ipl_block_valid) + if (!is_prot_virt_guest() && ipl_block_valid) append_ipl_block_parm(); } |