| Message ID | 1525247672-2165-1-git-send-email-opensource.ganesh@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 02/05/2018 09:54, Ganesh Mahendran wrote: > Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT for arm64. This > enables Speculative Page Fault handler. > > Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com> > --- > This patch is on top of Laurent's v10 spf > --- > arch/arm64/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index eb2cf49..cd583a9 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -144,6 +144,7 @@ config ARM64 > select SPARSE_IRQ > select SYSCTL_EXCEPTION_TRACE > select THREAD_INFO_IN_TASK > + select ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT if SMP There is no need to depend on SMP here as the upper CONFIG_SPECULATIVE_PAGE_FAULT is depending on SMP. > help > ARM 64-bit (AArch64) Linux support. >
On Wed, May 02, 2018 at 11:00:55AM +0200, Laurent Dufour wrote: > On 02/05/2018 09:54, Ganesh Mahendran wrote: > > Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT for arm64. This > > enables Speculative Page Fault handler. > > > > Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com> > > --- > > This patch is on top of Laurent's v10 spf > > --- > > arch/arm64/Kconfig | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > > index eb2cf49..cd583a9 100644 > > --- a/arch/arm64/Kconfig > > +++ b/arch/arm64/Kconfig > > @@ -144,6 +144,7 @@ config ARM64 > > select SPARSE_IRQ > > select SYSCTL_EXCEPTION_TRACE > > select THREAD_INFO_IN_TASK > > + select ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT if SMP > > There is no need to depend on SMP here as the upper > CONFIG_SPECULATIVE_PAGE_FAULT is depending on SMP. Additionally, since commit: 4b3dc9679cf77933 ("arm64: force CONFIG_SMP=y and remove redundant #ifdefs") ... arm64 is always SMP. Thanks, Mark.
On 5/2/2018 1:24 PM, Ganesh Mahendran wrote: > Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT for arm64. This > enables Speculative Page Fault handler. > > Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com> > --- > This patch is on top of Laurent's v10 spf > --- > arch/arm64/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index eb2cf49..cd583a9 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -144,6 +144,7 @@ config ARM64 > select SPARSE_IRQ > select SYSCTL_EXCEPTION_TRACE > select THREAD_INFO_IN_TASK > + select ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT if SMP > help > ARM 64-bit (AArch64) Linux support. > > You may also consider re-ordering of patches in next version. Generally, config enablement assumes effectiveness of that config. Chintan
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index eb2cf49..cd583a9 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -144,6 +144,7 @@ config ARM64 select SPARSE_IRQ select SYSCTL_EXCEPTION_TRACE select THREAD_INFO_IN_TASK + select ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT if SMP help ARM 64-bit (AArch64) Linux support.
Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT for arm64. This enables Speculative Page Fault handler. Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com> --- This patch is on top of Laurent's v10 spf --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+)