From: Dave Martin <Dave.Martin@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-arch@vger.kernel.org,
Okamoto Takayuki <tokamoto@jp.fujitsu.com>,
libc-alpha@sourceware.org,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
kvmarm@lists.cs.columbia.edu
Subject: [PATCH v5 05/30] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON
Date: Tue, 31 Oct 2017 15:50:57 +0000 [thread overview]
Message-ID: <1509465082-30427-6-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1509465082-30427-1-git-send-email-Dave.Martin@arm.com>
The EFI runtime services ABI permits calls to EFI to clobber
certain FPSIMD/NEON registers, as per the AArch64 procedure call
standard.
Saving/restoring the clobbered registers around such calls needs
KERNEL_MODE_NEON, but the dependency is missing from Kconfig.
This patch adds the missing dependency.
This will aid bisection of the patches implementing support for the
ARM Scalable Vector Extension (SVE).
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 05aa592..5cfb79d 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1064,6 +1064,7 @@ config EFI_STUB
config EFI
bool "UEFI runtime support"
depends on OF && !CPU_BIG_ENDIAN
+ depends on KERNEL_MODE_NEON
select LIBFDT
select UCS2_STRING
select EFI_PARAMS_FROM_FDT
--
2.1.4
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Martin <Dave.Martin@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: "Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"Ard Biesheuvel" <ard.biesheuvel@linaro.org>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Szabolcs Nagy" <szabolcs.nagy@arm.com>,
"Okamoto Takayuki" <tokamoto@jp.fujitsu.com>,
kvmarm@lists.cs.columbia.edu, libc-alpha@sourceware.org,
linux-arch@vger.kernel.org
Subject: [PATCH v5 05/30] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON
Date: Tue, 31 Oct 2017 15:50:57 +0000 [thread overview]
Message-ID: <1509465082-30427-6-git-send-email-Dave.Martin@arm.com> (raw)
Message-ID: <20171031155057.dyZaKtMv3bk-Vbul2uFe0SDNkf2qjktbzuCSmFWQjxs@z> (raw)
In-Reply-To: <1509465082-30427-1-git-send-email-Dave.Martin@arm.com>
The EFI runtime services ABI permits calls to EFI to clobber
certain FPSIMD/NEON registers, as per the AArch64 procedure call
standard.
Saving/restoring the clobbered registers around such calls needs
KERNEL_MODE_NEON, but the dependency is missing from Kconfig.
This patch adds the missing dependency.
This will aid bisection of the patches implementing support for the
ARM Scalable Vector Extension (SVE).
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 05aa592..5cfb79d 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1064,6 +1064,7 @@ config EFI_STUB
config EFI
bool "UEFI runtime support"
depends on OF && !CPU_BIG_ENDIAN
+ depends on KERNEL_MODE_NEON
select LIBFDT
select UCS2_STRING
select EFI_PARAMS_FROM_FDT
--
2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: Dave.Martin@arm.com (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 05/30] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON
Date: Tue, 31 Oct 2017 15:50:57 +0000 [thread overview]
Message-ID: <1509465082-30427-6-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1509465082-30427-1-git-send-email-Dave.Martin@arm.com>
The EFI runtime services ABI permits calls to EFI to clobber
certain FPSIMD/NEON registers, as per the AArch64 procedure call
standard.
Saving/restoring the clobbered registers around such calls needs
KERNEL_MODE_NEON, but the dependency is missing from Kconfig.
This patch adds the missing dependency.
This will aid bisection of the patches implementing support for the
ARM Scalable Vector Extension (SVE).
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Benn?e <alex.bennee@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 05aa592..5cfb79d 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1064,6 +1064,7 @@ config EFI_STUB
config EFI
bool "UEFI runtime support"
depends on OF && !CPU_BIG_ENDIAN
+ depends on KERNEL_MODE_NEON
select LIBFDT
select UCS2_STRING
select EFI_PARAMS_FROM_FDT
--
2.1.4
next prev parent reply other threads:[~2017-10-31 15:50 UTC|newest]
Thread overview: 174+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-31 15:50 [PATCH v5 00/30] ARM Scalable Vector Extension (SVE) Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-10-31 15:50 ` [PATCH v5 01/30] regset: Add support for dynamically sized regsets Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-11-01 11:42 ` Catalin Marinas
2017-11-01 11:42 ` Catalin Marinas
2017-11-01 13:16 ` Dave Martin
2017-11-01 13:16 ` Dave Martin
2017-11-08 11:50 ` Alex Bennée
2017-11-08 11:50 ` Alex Bennée
2017-11-08 11:50 ` Alex Bennée
2017-10-31 15:50 ` [PATCH v5 02/30] arm64: fpsimd: Correctly annotate exception helpers called from asm Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-11-01 11:42 ` Catalin Marinas
2017-11-01 11:42 ` Catalin Marinas
2017-10-31 15:50 ` [PATCH v5 03/30] arm64: signal: Verify extra data is user-readable in sys_rt_sigreturn Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-11-01 11:43 ` Catalin Marinas
2017-11-01 11:43 ` Catalin Marinas
2017-10-31 15:50 ` [PATCH v5 04/30] arm64: KVM: Hide unsupported AArch64 CPU features from guests Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-11-01 4:47 ` Christoffer Dall
2017-11-01 4:47 ` Christoffer Dall
2017-11-01 10:26 ` Dave Martin
2017-11-01 10:26 ` Dave Martin
2017-11-02 8:15 ` Christoffer Dall
2017-11-02 8:15 ` Christoffer Dall
2017-11-02 9:20 ` Dave Martin
2017-11-02 9:20 ` Dave Martin
2017-11-02 11:01 ` Dave Martin
2017-11-02 11:01 ` Dave Martin
2017-11-02 19:18 ` Christoffer Dall
2017-11-02 19:18 ` Christoffer Dall
2017-10-31 15:50 ` Dave Martin [this message]
2017-10-31 15:50 ` [PATCH v5 05/30] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-10-31 15:50 ` [PATCH v5 06/30] arm64: Port deprecated instruction emulation to new sysctl interface Dave Martin
2017-10-31 15:50 ` Dave Martin
2017-10-31 15:50 ` [PATCH v5 07/30] arm64: fpsimd: Simplify uses of {set,clear}_ti_thread_flag() Dave Martin
2017-10-31 15:50 ` [PATCH v5 07/30] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() Dave Martin
2017-10-31 15:51 ` [PATCH v5 08/30] arm64/sve: System register and exception syndrome definitions Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 09/30] arm64/sve: Low-level SVE architectural state manipulation functions Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 10/30] arm64/sve: Kconfig update and conditional compilation support Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 11/30] arm64/sve: Signal frame and context structure definition Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-11-08 16:34 ` Alex Bennée
2017-11-08 16:34 ` Alex Bennée
2017-11-08 16:34 ` Alex Bennée
2017-10-31 15:51 ` [PATCH v5 12/30] arm64/sve: Low-level CPU setup Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-11-08 16:37 ` Alex Bennée
2017-11-08 16:37 ` Alex Bennée
2017-11-08 16:37 ` Alex Bennée
2017-10-31 15:51 ` [PATCH v5 13/30] arm64/sve: Core task context handling Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-11-09 17:16 ` Alex Bennée
2017-11-09 17:16 ` Alex Bennée
2017-11-09 17:16 ` Alex Bennée
2017-11-09 17:56 ` Dave Martin
2017-11-09 17:56 ` Dave Martin
2017-11-09 18:06 ` Alex Bennée
2017-11-09 18:06 ` Alex Bennée
2017-11-09 18:06 ` Alex Bennée
2017-10-31 15:51 ` [PATCH v5 14/30] arm64/sve: Support vector length resetting for new processes Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 15/30] arm64/sve: Signal handling support Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-11-01 14:33 ` Catalin Marinas
2017-11-01 14:33 ` Catalin Marinas
2017-11-07 13:22 ` Alex Bennée
2017-11-07 13:22 ` Alex Bennée
2017-11-07 13:22 ` Alex Bennée
2017-11-08 16:11 ` Dave Martin
2017-11-08 16:11 ` Dave Martin
2017-12-06 19:56 ` Kees Cook
2017-12-06 19:56 ` Kees Cook
2017-12-07 10:49 ` Will Deacon
2017-12-07 10:49 ` Will Deacon
2017-12-07 12:03 ` Dave Martin
2017-12-07 12:03 ` Dave Martin
2017-12-07 18:50 ` Kees Cook
2017-12-07 18:50 ` Kees Cook
2017-12-11 14:07 ` Will Deacon
2017-12-11 14:07 ` Will Deacon
2017-12-11 19:23 ` Kees Cook
2017-12-11 19:23 ` Kees Cook
2017-12-12 10:40 ` Will Deacon
2017-12-12 10:40 ` Will Deacon
2017-12-12 11:11 ` Dave Martin
2017-12-12 11:11 ` Dave Martin
2017-12-12 19:36 ` Kees Cook
2017-12-12 19:36 ` Kees Cook
2017-12-12 19:36 ` Kees Cook
2017-10-31 15:51 ` [PATCH v5 16/30] arm64/sve: Backend logic for setting the vector length Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-11-10 10:27 ` Alex Bennée
2017-11-10 10:27 ` Alex Bennée
2017-11-10 10:27 ` Alex Bennée
2017-10-31 15:51 ` [PATCH v5 17/30] arm64: cpufeature: Move sys_caps_initialised declarations Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 18/30] arm64/sve: Probe SVE capabilities and usable vector lengths Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 19/30] arm64/sve: Preserve SVE registers around kernel-mode NEON use Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 20/30] arm64/sve: Preserve SVE registers around EFI runtime service calls Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 21/30] arm64/sve: ptrace and ELF coredump support Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 22/30] arm64/sve: Add prctl controls for userspace vector length management Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 23/30] arm64/sve: Add sysctl to set the default vector length for new processes Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 24/30] arm64/sve: KVM: Prevent guests from using SVE Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 25/30] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 26/30] arm64/sve: KVM: Hide SVE from CPU features exposed to guests Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [PATCH v5 27/30] arm64/sve: Detect SVE and activate runtime support Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [RFC PATCH v5 29/30] arm64: signal: Report signal frame size to userspace via auxv Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` [RFC PATCH v5 30/30] arm64/sve: signal: Include SVE when computing AT_MINSIGSTKSZ Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
[not found] ` <1509465082-30427-1-git-send-email-Dave.Martin-5wv7dgnIgG8@public.gmane.org>
2017-10-31 15:51 ` [PATCH v5 28/30] arm64/sve: Add documentation Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-10-31 15:51 ` Dave Martin
2017-11-02 16:32 ` [PATCH v5 00/30] ARM Scalable Vector Extension (SVE) Will Deacon
2017-11-02 16:32 ` Will Deacon
2017-11-02 16:32 ` Will Deacon
[not found] ` <20171102163248.GB595-5wv7dgnIgG8@public.gmane.org>
2017-11-02 17:04 ` Dave P Martin
2017-11-02 17:04 ` Dave P Martin
2017-11-02 17:04 ` Dave P Martin
2017-11-29 15:04 ` Alex Bennée
2017-11-29 15:04 ` Alex Bennée
2017-11-29 15:04 ` Alex Bennée
[not found] ` <877eu9dt3n.fsf-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-11-29 15:21 ` Will Deacon
2017-11-29 15:21 ` Will Deacon
2017-11-29 15:21 ` Will Deacon
[not found] ` <20171129152140.GD10650-5wv7dgnIgG8@public.gmane.org>
2017-11-29 15:37 ` Dave Martin
2017-11-29 15:37 ` Dave Martin
2017-11-29 15:37 ` Dave Martin
2018-01-08 14:49 ` Yury Norov
2018-01-08 14:49 ` Yury Norov
2018-01-08 14:49 ` Yury Norov
2018-01-09 16:51 ` Yury Norov
2018-01-09 16:51 ` Yury Norov
2018-01-09 16:51 ` Yury Norov
2018-01-15 17:22 ` Dave Martin
2018-01-15 17:22 ` Dave Martin
2018-01-15 17:22 ` Dave Martin
[not found] ` <20180115172201.GW22781-M5GwZQ6tE7x5pKCnmE3YQBJ8xKzm50AiAL8bYrjMMd8@public.gmane.org>
2018-01-16 10:11 ` Yury Norov
2018-01-16 10:11 ` Yury Norov
2018-01-16 16:05 ` Dave Martin
2018-01-16 16:05 ` Dave Martin
2018-01-15 16:55 ` Dave Martin
2018-01-15 16:55 ` Dave Martin
2018-01-15 16:55 ` Dave Martin
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