From: Dave Martin <Dave.Martin@arm.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Christoffer Dall <cdall@kernel.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Andre Przywara <andre.przywara@arm.com>,
Will Deacon <will.deacon@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
Zhang Lei <zhang.lei@jp.fujitsu.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH kvmtool v4 3/8] update_headers.sh: arm64: Copy sve_context.h if available
Date: Fri, 7 Jun 2019 12:26:24 +0100 [thread overview]
Message-ID: <1559906789-20936-4-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1559906789-20936-1-git-send-email-Dave.Martin@arm.com>
The SVE KVM support for arm64 includes the additional backend
header <asm/sve_context.h> from <asm/kvm.h>.
So update this header if it is available.
To avoid creating a sudden dependency on a specific minimum kernel
version, ignore such optional headers if the source kernel tree
doesn't have them.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
---
Changes since v3:
* [Andre Przywara]: Quote argument to local (it turns out that some
shells, including dash, require this).
* [Andre Przywara]: Factor out copying of possibly-absent arch headers
as optional_arch, for easier reuse later.
---
| 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
--git a/util/update_headers.sh b/util/update_headers.sh
index a7e21b8..bf87ef6 100755
--- a/util/update_headers.sh
+++ b/util/update_headers.sh
@@ -25,11 +25,23 @@ fi
cp -- "$LINUX_ROOT/include/uapi/linux/kvm.h" include/linux
+unset KVMTOOL_PATH
+
+copy_optional_arch () {
+ local src="$LINUX_ROOT/arch/$arch/include/uapi/$1"
+
+ if [ -r "$src" ]
+ then
+ cp -- "$src" "$KVMTOOL_PATH/include/asm/"
+ fi
+}
+
for arch in arm arm64 mips powerpc x86
do
case "$arch" in
arm) KVMTOOL_PATH=arm/aarch32 ;;
- arm64) KVMTOOL_PATH=arm/aarch64 ;;
+ arm64) KVMTOOL_PATH=arm/aarch64
+ copy_optional_arch asm/sve_context.h ;;
*) KVMTOOL_PATH=$arch ;;
esac
cp -- "$LINUX_ROOT/arch/$arch/include/uapi/asm/kvm.h" \
--
2.1.4
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next prev parent reply other threads:[~2019-06-07 11:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-07 11:26 [PATCH kvmtool v4 0/8] arm64: Pointer Authentication and SVE support Dave Martin
2019-06-07 11:26 ` [PATCH kvmtool v4 1/8] update_headers.sh: Add missing shell quoting Dave Martin
2019-06-07 11:26 ` [PATCH kvmtool v4 2/8] update_headers.sh: Cleanly report failure on error Dave Martin
2019-06-07 11:26 ` Dave Martin [this message]
2019-06-07 11:26 ` [PATCH kvmtool v4 4/8] update_headers: Sync kvm UAPI headers with linux v5.2-rc1 Dave Martin
2019-06-07 11:26 ` [PATCH kvmtool v4 5/8] KVM: arm/arm64: Add a vcpu feature for pointer authentication Dave Martin
2019-06-07 11:26 ` [PATCH kvmtool v4 6/8] KVM: arm/arm64: Back out ptrauth command-line arguments Dave Martin
2019-07-18 13:00 ` Andre Przywara
2019-06-07 11:26 ` [PATCH kvmtool v4 7/8] arm/arm64: Factor out ptrauth vcpu feature setup Dave Martin
2019-06-07 11:26 ` [PATCH kvmtool v4 8/8] arm64: Add SVE support Dave Martin
2019-07-03 9:35 ` [PATCH kvmtool v4 0/8] arm64: Pointer Authentication and " Will Deacon
2019-07-03 11:07 ` Dave Martin
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