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From: Inochi Amaoto <inochiama@gmail.com>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Anup Patel <anup@brainfault.org>,
	Atish Patra <atish.patra@linux.dev>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Shuah Khan <shuah@kernel.org>, Thomas Huth <thuth@redhat.com>,
	Sergey Matyukevich <geomatsi@gmail.com>,
	Inochi Amaoto <inochiama@gmail.com>,
	Andy Chiu <andybnac@gmail.com>, Deepak Gupta <debug@rivosinc.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	linux-kselftest@vger.kernel.org, Yixun Lan <dlan@gentoo.org>,
	Longbin Li <looong.bin@gmail.com>,
	Quan Zhou <zhouquan@iscas.ac.cn>
Subject: [PATCH v4 3/8] RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM
Date: Wed,  1 Jul 2026 10:07:40 +0800	[thread overview]
Message-ID: <20260701020746.170157-4-inochiama@gmail.com> (raw)
In-Reply-To: <20260701020746.170157-1-inochiama@gmail.com>

Extend the KVM ISA extension array to allow KVM userspace to
detect and enable Zicfiss/Zicfilp extensions for Guest/VM.

Assisted-by: YuanSheng:claude-4.7-opus
Co-developed-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
 arch/riscv/include/uapi/asm/kvm.h | 2 ++
 arch/riscv/kvm/isa.c              | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 7bbea8812d92..a27de850fa4c 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -199,6 +199,8 @@ enum KVM_RISCV_ISA_EXT_ID {
 	KVM_RISCV_ISA_EXT_ZCLSD,
 	KVM_RISCV_ISA_EXT_ZILSD,
 	KVM_RISCV_ISA_EXT_ZALASR,
+	KVM_RISCV_ISA_EXT_ZICFILP,
+	KVM_RISCV_ISA_EXT_ZICFISS,
 	KVM_RISCV_ISA_EXT_MAX,
 };
 
diff --git a/arch/riscv/kvm/isa.c b/arch/riscv/kvm/isa.c
index 1132d909cc25..9852a91fdecc 100644
--- a/arch/riscv/kvm/isa.c
+++ b/arch/riscv/kvm/isa.c
@@ -65,6 +65,8 @@ static const unsigned long kvm_isa_ext_arr[] = {
 	KVM_ISA_EXT_ARR(ZICBOP),
 	KVM_ISA_EXT_ARR(ZICBOZ),
 	KVM_ISA_EXT_ARR(ZICCRSE),
+	KVM_ISA_EXT_ARR(ZICFILP),
+	KVM_ISA_EXT_ARR(ZICFISS),
 	KVM_ISA_EXT_ARR(ZICNTR),
 	KVM_ISA_EXT_ARR(ZICOND),
 	KVM_ISA_EXT_ARR(ZICSR),
-- 
2.55.0


WARNING: multiple messages have this Message-ID (diff)
From: Inochi Amaoto <inochiama@gmail.com>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Anup Patel <anup@brainfault.org>,
	Atish Patra <atish.patra@linux.dev>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Shuah Khan <shuah@kernel.org>, Thomas Huth <thuth@redhat.com>,
	Sergey Matyukevich <geomatsi@gmail.com>,
	Inochi Amaoto <inochiama@gmail.com>,
	Andy Chiu <andybnac@gmail.com>, Deepak Gupta <debug@rivosinc.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	linux-kselftest@vger.kernel.org, Yixun Lan <dlan@gentoo.org>,
	Longbin Li <looong.bin@gmail.com>,
	Quan Zhou <zhouquan@iscas.ac.cn>
Subject: [PATCH v4 3/8] RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM
Date: Wed,  1 Jul 2026 10:07:40 +0800	[thread overview]
Message-ID: <20260701020746.170157-4-inochiama@gmail.com> (raw)
In-Reply-To: <20260701020746.170157-1-inochiama@gmail.com>

Extend the KVM ISA extension array to allow KVM userspace to
detect and enable Zicfiss/Zicfilp extensions for Guest/VM.

Assisted-by: YuanSheng:claude-4.7-opus
Co-developed-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
 arch/riscv/include/uapi/asm/kvm.h | 2 ++
 arch/riscv/kvm/isa.c              | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 7bbea8812d92..a27de850fa4c 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -199,6 +199,8 @@ enum KVM_RISCV_ISA_EXT_ID {
 	KVM_RISCV_ISA_EXT_ZCLSD,
 	KVM_RISCV_ISA_EXT_ZILSD,
 	KVM_RISCV_ISA_EXT_ZALASR,
+	KVM_RISCV_ISA_EXT_ZICFILP,
+	KVM_RISCV_ISA_EXT_ZICFISS,
 	KVM_RISCV_ISA_EXT_MAX,
 };
 
diff --git a/arch/riscv/kvm/isa.c b/arch/riscv/kvm/isa.c
index 1132d909cc25..9852a91fdecc 100644
--- a/arch/riscv/kvm/isa.c
+++ b/arch/riscv/kvm/isa.c
@@ -65,6 +65,8 @@ static const unsigned long kvm_isa_ext_arr[] = {
 	KVM_ISA_EXT_ARR(ZICBOP),
 	KVM_ISA_EXT_ARR(ZICBOZ),
 	KVM_ISA_EXT_ARR(ZICCRSE),
+	KVM_ISA_EXT_ARR(ZICFILP),
+	KVM_ISA_EXT_ARR(ZICFISS),
 	KVM_ISA_EXT_ARR(ZICNTR),
 	KVM_ISA_EXT_ARR(ZICOND),
 	KVM_ISA_EXT_ARR(ZICSR),
-- 
2.55.0


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

WARNING: multiple messages have this Message-ID (diff)
From: Inochi Amaoto <inochiama@gmail.com>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Anup Patel <anup@brainfault.org>,
	Atish Patra <atish.patra@linux.dev>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Shuah Khan <shuah@kernel.org>, Thomas Huth <thuth@redhat.com>,
	Sergey Matyukevich <geomatsi@gmail.com>,
	Inochi Amaoto <inochiama@gmail.com>,
	Andy Chiu <andybnac@gmail.com>, Deepak Gupta <debug@rivosinc.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	linux-kselftest@vger.kernel.org, Yixun Lan <dlan@gentoo.org>,
	Longbin Li <looong.bin@gmail.com>,
	Quan Zhou <zhouquan@iscas.ac.cn>
Subject: [PATCH v4 3/8] RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM
Date: Wed,  1 Jul 2026 10:07:40 +0800	[thread overview]
Message-ID: <20260701020746.170157-4-inochiama@gmail.com> (raw)
In-Reply-To: <20260701020746.170157-1-inochiama@gmail.com>

Extend the KVM ISA extension array to allow KVM userspace to
detect and enable Zicfiss/Zicfilp extensions for Guest/VM.

Assisted-by: YuanSheng:claude-4.7-opus
Co-developed-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
 arch/riscv/include/uapi/asm/kvm.h | 2 ++
 arch/riscv/kvm/isa.c              | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 7bbea8812d92..a27de850fa4c 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -199,6 +199,8 @@ enum KVM_RISCV_ISA_EXT_ID {
 	KVM_RISCV_ISA_EXT_ZCLSD,
 	KVM_RISCV_ISA_EXT_ZILSD,
 	KVM_RISCV_ISA_EXT_ZALASR,
+	KVM_RISCV_ISA_EXT_ZICFILP,
+	KVM_RISCV_ISA_EXT_ZICFISS,
 	KVM_RISCV_ISA_EXT_MAX,
 };
 
diff --git a/arch/riscv/kvm/isa.c b/arch/riscv/kvm/isa.c
index 1132d909cc25..9852a91fdecc 100644
--- a/arch/riscv/kvm/isa.c
+++ b/arch/riscv/kvm/isa.c
@@ -65,6 +65,8 @@ static const unsigned long kvm_isa_ext_arr[] = {
 	KVM_ISA_EXT_ARR(ZICBOP),
 	KVM_ISA_EXT_ARR(ZICBOZ),
 	KVM_ISA_EXT_ARR(ZICCRSE),
+	KVM_ISA_EXT_ARR(ZICFILP),
+	KVM_ISA_EXT_ARR(ZICFISS),
 	KVM_ISA_EXT_ARR(ZICNTR),
 	KVM_ISA_EXT_ARR(ZICOND),
 	KVM_ISA_EXT_ARR(ZICSR),
-- 
2.55.0


-- 
kvm-riscv mailing list
kvm-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kvm-riscv

  parent reply	other threads:[~2026-07-01  2:08 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-01  2:07 [PATCH v4 0/8] RISC-V: KVM: Add Svadu/Zicfiss/Zicfilp FWFT support Inochi Amaoto
2026-07-01  2:07 ` Inochi Amaoto
2026-07-01  2:07 ` Inochi Amaoto
2026-07-01  2:07 ` [PATCH v4 1/8] RISC-V: KVM: Add support for Svadu FWFT features Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:30   ` sashiko-bot
2026-07-01  2:07 ` [PATCH v4 2/8] KVM: riscv: selftests: add Svadu FWFT extension to get-reg-list test Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07 ` Inochi Amaoto [this message]
2026-07-01  2:07   ` [PATCH v4 3/8] RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07 ` [PATCH v4 4/8] RISC-V: KVM: Add ssp context save/restore Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:28   ` sashiko-bot
2026-07-01  2:07 ` [PATCH v4 5/8] RISC-V: KVM: Handle software-check exits for VCPU Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:31   ` sashiko-bot
2026-07-01  2:07 ` [PATCH v4 6/8] RISC-V: KVM: Delegate SPELP bit to VS/VU mode if landing pad is enabled Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:20   ` sashiko-bot
2026-07-01  2:07 ` [PATCH v4 7/8] RISC-V: KVM: Add support for control-flow integrity FWFT features Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:33   ` sashiko-bot
2026-07-01  2:07 ` [PATCH v4 8/8] KVM: riscv: selftests: add Zicfiss/Zicfilp extension to get-reg-list test Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:07   ` Inochi Amaoto
2026-07-01  2:23   ` sashiko-bot

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