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From: Steffen Eiden <seiden@linux.ibm.com>
To: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
	Fuad Tabba <fuad.tabba@linux.dev>,
	Joey Gouly <joey.gouly@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Andreas Grapentin <gra@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Janosch Frank <frankja@linux.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	David Hildenbrand <david@kernel.org>,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Friedrich Welter <fritz@linux.ibm.com>,
	Gautam Gala <ggala@linux.ibm.com>,
	Hariharan Mari <hari55@linux.ibm.com>,
	Hendrik Brueckner <brueckner@linux.ibm.com>,
	Nico Boehr <nrb@linux.ibm.com>,
	Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	linux-s390@vger.kernel.org, Steffen Eiden <seiden@linux.ibm.com>
Subject: [PATCH v3 09/23] s390: tools: Share arm64/kvm headers
Date: Fri, 06 Nov 2026 17:07:42 +0100	[thread overview]
Message-ID: <20261106-sysreg-v3-9-75e95980fb10@linux.ibm.com> (raw)
In-Reply-To: <20261106-sysreg-v3-0-75e95980fb10@linux.ibm.com>

In addition to sharing headers in arch/arm64/include/{asm, uapi/asm}
also allow to share headers in arch/arm64/kvm which provide local KVM
definitions.

Co-developed-by: Andreas Grapentin <gra@linux.ibm.com>
Signed-off-by: Andreas Grapentin <gra@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
---
 arch/s390/tools/Makefile.arm64h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/s390/tools/Makefile.arm64h b/arch/s390/tools/Makefile.arm64h
index f3f8e9d9bdd8..88dcce26179c 100644
--- a/arch/s390/tools/Makefile.arm64h
+++ b/arch/s390/tools/Makefile.arm64h
@@ -7,10 +7,11 @@ arm64api := $(objtree)/arch/$(ARCH)/include/generated/arm64
 arm64uapi := $(objtree)/arch/$(ARCH)/include/generated/uapi/arm64
 
 # List of ARM64 headers to share with s390 KVM
-# Format: [uapi:]header.h or header-gen.h
+# Format: [uapi:|kvm:]header.h or header-gen.h
 #
 # * header.h - from arch/arm64/include/asm/ to arm64/
 # * uapi:header.h - from arch/arm64/include/uapi/asm/ to uapi/arm64/
+# * kvm:header.h - from arch/arm64/kvm/ to arm64/
 # * header-gen.h - generated as header-gen.h from ARM64 header header.h
 # If a header contains partial markers (#if ARM64_S390_COMMON == 1) only this part will be copied.
 # If the file does not contain any markers the whole file will be copied.
@@ -36,7 +37,9 @@ arm64-type = $(firstword $(subst :, ,$(1)))
 arm64-base = $(or $(word 2,$(subst :, ,$(1))),$(1))
 arm64-src-base = $(patsubst %-gen.h,%.h,$(call arm64-base,$(1)))
 
-arm64-src = $(srctree)/arch/arm64/include/$(if $(filter uapi,$(call arm64-type,$(1))),uapi/)asm/$(call arm64-src-base,$(1))
+arm64-src = $(if $(filter kvm,$(call arm64-type,$(1))),\
+		$(srctree)/arch/arm64/kvm/$(call arm64-src-base,$(1)),\
+		$(srctree)/arch/arm64/include/$(if $(filter uapi,$(call arm64-type,$(1))),uapi/)asm/$(call arm64-src-base,$(1)))
 arm64-dst = $(if $(filter uapi,$(call arm64-type,$(1))),$(arm64uapi),$(arm64api))/$(call arm64-base,$(1))
 
 $(foreach hdr,$(ARM64_SHARED_HEADERS),\

-- 
2.56.0


  parent reply	other threads:[~2026-11-06 16:08 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-06 16:07 [PATCH v3 00/23] KVM: arm64 on s390 System Register Handling Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 01/23] KVM: arm64: Refactor idreg caching into dedicated structure Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 02/23] KVM: arm64: Extract number of sys_reg_desc into a constant Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 03/23] arm64: sysreg: Convert OSLSR to automatic register generation Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 04/23] arm64: Prepare headers for sysreg sharing with s390 Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 05/23] arm64: Share system register related headers and functions " Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 06/23] KVM: s390: arm64: Prepare for sharing arm64 SVE and ftr-reg code Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 07/23] KVM: arm64: Prepare sys_regs.c for sharing with s390 Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 08/23] KVM: arm64: Share system register code " Steffen Eiden
2026-11-06 16:07 ` Steffen Eiden [this message]
2026-11-06 16:07 ` [PATCH v3 10/23] s390: Add range check asm macro Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 11/23] s390: Read/write ARM system registers Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 12/23] s390: Query arm guest time Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 13/23] KVM: s390: arm64: Query Available Arm features Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 14/23] KVM: s390: arm64: Verify machine feature set before loading Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 15/23] KVM: s390: arm64: Implement feature sanitisation Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 16/23] KVM: s390: arm64: Implement arm sysreg managing infrastructure Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 17/23] KVM: s390: arm64: Integrate sysreg into the host Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 18/23] KVM: s390: arm64: Use QAAF init save area Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 19/23] KVM: s390: arm64: Implement exception injection Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 20/23] KVM: s390: arm64: Finalize page fault handling Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 21/23] KVM: s390: arm64: Implement SVE for arm guests Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 22/23] KVM: s390: arm64: Promote PTRAUTH capability Steffen Eiden
2026-11-06 16:07 ` [PATCH v3 23/23] s390: Report AEF features to sysfs Steffen Eiden

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