| Message ID | 1529518101-6531-1-git-send-email-festevam@gmail.com |
|---|---|
| State | Accepted |
| Commit | ee322f3c79a86e6f26629f8535cddb2b844d5113 |
| Delegated to: | Tom Rini |
| Headers | show |
| Series | [U-Boot] mx5: Select ARM_CORTEX_A8_CVE_2017_5715 | expand |
Hi Tom and Stefano, On Wed, Jun 20, 2018 at 3:08 PM, Fabio Estevam <festevam@gmail.com> wrote: > From: Fabio Estevam <fabio.estevam@nxp.com> > > On a 4.18-rc1 kernel the following warning is seen on i.MX51 and > i.MX53: > > CPU0: Spectre v2: firmware did not set auxiliary control register IBE bit, system vulnerable > > Select the ARM_CORTEX_A8_CVE_2017_5715 workaround for i.MX51/i.MX53 > to fix the problem. > > With this patch applied the kernel reports: > > CPU0: Spectre v2: using BPIALL workaround > > Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> > --- > This depends on Nishanth Menon's series that introduces the > ARM_CORTEX_A8_CVE_2017_5715 Spectre workaround. I saw that Tom has just applied Nishanth Menon's series. Can this one also be applied for 2018.07? Thanks
On Fri, Jun 29, 2018 at 06:26:55PM -0300, Fabio Estevam wrote: > Hi Tom and Stefano, > > On Wed, Jun 20, 2018 at 3:08 PM, Fabio Estevam <festevam@gmail.com> wrote: > > From: Fabio Estevam <fabio.estevam@nxp.com> > > > > On a 4.18-rc1 kernel the following warning is seen on i.MX51 and > > i.MX53: > > > > CPU0: Spectre v2: firmware did not set auxiliary control register IBE bit, system vulnerable > > > > Select the ARM_CORTEX_A8_CVE_2017_5715 workaround for i.MX51/i.MX53 > > to fix the problem. > > > > With this patch applied the kernel reports: > > > > CPU0: Spectre v2: using BPIALL workaround > > > > Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> > > --- > > This depends on Nishanth Menon's series that introduces the > > ARM_CORTEX_A8_CVE_2017_5715 Spectre workaround. > > I saw that Tom has just applied Nishanth Menon's series. > > Can this one also be applied for 2018.07? I can pick it up, or it can be in a PR, thanks!
Hi Tom, On Fri, Jun 29, 2018 at 6:30 PM, Tom Rini <trini@konsulko.com> wrote: >> I saw that Tom has just applied Nishanth Menon's series. >> >> Can this one also be applied for 2018.07? > > I can pick it up, or it can be in a PR, thanks! As Stefano's tree do not contain Nishanth's series, maybe it would be easier if you could pick this one directly. Thanks
On Wed, Jun 20, 2018 at 03:08:21PM -0300, Fabio Estevam wrote: > From: Fabio Estevam <fabio.estevam@nxp.com> > > On a 4.18-rc1 kernel the following warning is seen on i.MX51 and > i.MX53: > > CPU0: Spectre v2: firmware did not set auxiliary control register IBE bit, system vulnerable > > Select the ARM_CORTEX_A8_CVE_2017_5715 workaround for i.MX51/i.MX53 > to fix the problem. > > With this patch applied the kernel reports: > > CPU0: Spectre v2: using BPIALL workaround > > Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Applied to u-boot/master, thanks!
diff --git a/arch/arm/mach-imx/mx5/Kconfig b/arch/arm/mach-imx/mx5/Kconfig index 06322b2..100257b 100644 --- a/arch/arm/mach-imx/mx5/Kconfig +++ b/arch/arm/mach-imx/mx5/Kconfig @@ -8,9 +8,11 @@ config MX5 config MX51 bool select SYS_FSL_ERRATUM_ESDHC_A001 + select ARM_CORTEX_A8_CVE_2017_5715 config MX53 bool + select ARM_CORTEX_A8_CVE_2017_5715 choice prompt "MX5 board select"