[PATCH v2 stable v4.4 1/2] powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg
commit e59f5bd759b7dee57593c5b6c0441609bda5d530 upstream.
Signed-off-by: Diana Craciun diana.craciun@nxp.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au --- Documentation/kernel-parameters.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index da515c535e62..f0bdf78420a0 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2450,7 +2450,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
nohugeiomap [KNL,x86] Disable kernel huge I/O mappings.
- nospectre_v2 [X86] Disable all mitigations for the Spectre variant 2 + nospectre_v2 [X86,PPC_FSL_BOOK3E] Disable all mitigations for the Spectre variant 2 (indirect branch prediction) vulnerability. System may allow data leaks with this option, which is equivalent to spectre_v2=off.
commit 26cb1f36c43ee6e89d2a9f48a5a7500d5248f836 upstream.
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(+)
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
On Tue, Apr 30, 2019 at 03:42:27PM +0300, Diana Craciun wrote:
commit 26cb1f36c43ee6e89d2a9f48a5a7500d5248f836 upstream.
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(+)
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.
Trailing whitespace :(
Fix up your editor to flag this as RED or something. I'll go fix it up...
On Tue, Apr 30, 2019 at 03:42:27PM +0300, Diana Craciun wrote:
commit 26cb1f36c43ee6e89d2a9f48a5a7500d5248f836 upstream.
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(+)
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 possiblein the system.nospectre_v2 [X86,PPC_FSL_BOOK3E] Disable all mitigations for the Spectre variant 2 (indirect branch prediction) vulnerability. System may -- 2.17.1
Both of these patches needed to be added to a bunch of the stable trees, so I've now done that.
thanks,
greg k-h
linux-stable-mirror@lists.linaro.org
-
Diana Craciun -
Greg KH