From mboxrd@z Thu Jan 1 00:00:00 1970 From: ldufour@linux.vnet.ibm.com (Laurent Dufour) Date: Wed, 2 May 2018 11:00:55 +0200 Subject: [PATCH 1/2] arm64/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT In-Reply-To: <1525247672-2165-1-git-send-email-opensource.ganesh@gmail.com> References: <1525247672-2165-1-git-send-email-opensource.ganesh@gmail.com> Message-ID: <15c56137-e7c4-dbfa-ce5d-f5feeea79e98@linux.vnet.ibm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > --- > 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. >