diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2018-07-13 16:23:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-15 18:14:49 +0200 |
| commit | 80e55b5ea4e9dbc049594bf357b1a9b0347bb584 (patch) | |
| tree | 71d3650121badbbd5fd0856a765d818c8532add6 /arch/x86/include/asm | |
| parent | e7cda2ffe1279bcf63f1dd8bbc3c7b818a9ba457 (diff) | |
x86/litf: Introduce vmx status variable
commit 72c6d2db64fa18c996ece8f06e499509e6c9a37e upstream
Store the effective mitigation of VMX in a status variable and use it to
report the VMX state in the l1tf sysfs file.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20180713142322.433098358@linutronix.de
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/vmx.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h index 9cbfbef6a115..c5639c139732 100644 --- a/arch/x86/include/asm/vmx.h +++ b/arch/x86/include/asm/vmx.h @@ -499,4 +499,13 @@ enum vm_instruction_error_number { VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID = 28, }; +enum vmx_l1d_flush_state { + VMENTER_L1D_FLUSH_AUTO, + VMENTER_L1D_FLUSH_NEVER, + VMENTER_L1D_FLUSH_COND, + VMENTER_L1D_FLUSH_ALWAYS, +}; + +extern enum vmx_l1d_flush_state l1tf_vmx_mitigation; + #endif |