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| author | Ingo Molnar <mingo@kernel.org> | 2020-01-20 08:42:47 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-01-20 08:42:47 +0100 |
| commit | 837171fe77d700222bb75ef5fe26f4785fcd9e99 (patch) | |
| tree | 3d73dc7328db9636f0ac0e11961ec031647ed39d /drivers/misc/lkdtm/bugs.c | |
| parent | x86/vdso: Enable sanitizers for vma.o (diff) | |
| parent | Linux 5.5-rc7 (diff) | |
| download | linux-837171fe77d700222bb75ef5fe26f4785fcd9e99.tar.xz linux-837171fe77d700222bb75ef5fe26f4785fcd9e99.zip | |
Merge tag 'v5.5-rc7' into locking/kcsan, to refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/misc/lkdtm/bugs.c')
| -rw-r--r-- | drivers/misc/lkdtm/bugs.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index a4fdad04809a..de87693cf557 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -278,7 +278,7 @@ void lkdtm_STACK_GUARD_PAGE_TRAILING(void) void lkdtm_UNSET_SMEP(void) { -#ifdef CONFIG_X86_64 +#if IS_ENABLED(CONFIG_X86_64) && !IS_ENABLED(CONFIG_UML) #define MOV_CR4_DEPTH 64 void (*direct_write_cr4)(unsigned long val); unsigned char *insn; @@ -338,13 +338,13 @@ void lkdtm_UNSET_SMEP(void) native_write_cr4(cr4); } #else - pr_err("FAIL: this test is x86_64-only\n"); + pr_err("XFAIL: this test is x86_64-only\n"); #endif } -#ifdef CONFIG_X86_32 void lkdtm_DOUBLE_FAULT(void) { +#ifdef CONFIG_X86_32 /* * Trigger #DF by setting the stack limit to zero. This clobbers * a GDT TLS slot, which is okay because the current task will die @@ -373,6 +373,8 @@ void lkdtm_DOUBLE_FAULT(void) asm volatile ("movw %0, %%ss; addl $0, (%%esp)" :: "r" ((unsigned short)(GDT_ENTRY_TLS_MIN << 3))); - panic("tried to double fault but didn't die\n"); -} + pr_err("FAIL: tried to double fault but didn't die\n"); +#else + pr_err("XFAIL: this test is ia32-only\n"); #endif +} |