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[stable,v4.4,8/8] Documentation: Add nospectre_v1 parameter

Message ID 1556552948-24957-9-git-send-email-diana.craciun@nxp.com (mailing list archive)
State Not Applicable
Headers show
Series missing powerpc spectre backports for 4.4 | expand

Commit Message

Diana Craciun April 29, 2019, 3:49 p.m. UTC 
Currently only supported on powerpc.

Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 Documentation/kernel-parameters.txt | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Greg KH April 30, 2019, 10:38 a.m. UTC | #1 
On Mon, Apr 29, 2019 at 06:49:08PM +0300, Diana Craciun wrote:
> Currently only supported on powerpc.

No upstream git commit id for this one?

thanks,

greg k-h
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Patch

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f0bdf78420a0..3ff87d5d6fea 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2449,6 +2449,10 @@  bytes respectively. Such letter suffixes can also be entirely omitted.
 			legacy floating-point registers on task switch.
 
 	nohugeiomap	[KNL,x86] Disable kernel huge I/O mappings.
+	
+	nospectre_v1	[PPC] Disable mitigations for Spectre Variant 1 (bounds
+			check bypass). With this option data leaks are possible
+			in the system.
 
 	nospectre_v2	[X86,PPC_FSL_BOOK3E] Disable all mitigations for the Spectre variant 2
 			(indirect branch prediction) vulnerability. System may