From: Fuad Tabba <fuad.tabba@linux.dev>
To: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>
Cc: Will Deacon <will@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Shuah Khan <shuah@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Steffen Eiden <seiden@linux.ibm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Vincent Donnefort <vdonnefort@google.com>,
Quentin Perret <qperret@google.com>,
Fuad Tabba <tabba@google.com>,
kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
kvm@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 03/16] tools: arm-smccc: Add the pKVM memory sharing function IDs
Date: Wed, 4 Nov 2026 08:48:29 +0000 [thread overview]
Message-ID: <20261104084842.132944-4-fuad.tabba@linux.dev> (raw)
In-Reply-To: <20261104084842.132944-1-fuad.tabba@linux.dev>
The tools copy of arm-smccc.h lacks the pKVM guest hypercalls that the
protected-VM selftests make.
The kernel's arm-smccc.h defines the vendor-hyp UID with UUID_INIT(),
which requires linux/uuid.h, and tools doesn't have one. So rather than
sync the whole header, copy the function numbers and IDs of HYP_MEMINFO,
MEM_SHARE and MEM_UNSHARE from include/linux/arm-smccc.h.
Signed-off-by: Fuad Tabba <fuad.tabba@linux.dev>
---
tools/include/linux/arm-smccc.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/tools/include/linux/arm-smccc.h b/tools/include/linux/arm-smccc.h
index 63ce9bebccd32..8c8f4ad639018 100644
--- a/tools/include/linux/arm-smccc.h
+++ b/tools/include/linux/arm-smccc.h
@@ -111,6 +111,10 @@
/* KVM "vendor specific" services */
#define ARM_SMCCC_KVM_FUNC_FEATURES 0
#define ARM_SMCCC_KVM_FUNC_PTP 1
+/* Start of pKVM hypercall range */
+#define ARM_SMCCC_KVM_FUNC_HYP_MEMINFO 2
+#define ARM_SMCCC_KVM_FUNC_MEM_SHARE 3
+#define ARM_SMCCC_KVM_FUNC_MEM_UNSHARE 4
#define ARM_SMCCC_KVM_FUNC_FEATURES_2 127
#define ARM_SMCCC_KVM_NUM_FUNCS 128
@@ -133,6 +137,24 @@
ARM_SMCCC_OWNER_VENDOR_HYP, \
ARM_SMCCC_KVM_FUNC_PTP)
+#define ARM_SMCCC_VENDOR_HYP_KVM_HYP_MEMINFO_FUNC_ID \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+ ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_VENDOR_HYP, \
+ ARM_SMCCC_KVM_FUNC_HYP_MEMINFO)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+ ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_VENDOR_HYP, \
+ ARM_SMCCC_KVM_FUNC_MEM_SHARE)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+ ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_VENDOR_HYP, \
+ ARM_SMCCC_KVM_FUNC_MEM_UNSHARE)
+
/* ptp_kvm counter type ID */
#define KVM_PTP_VIRT_COUNTER 0
#define KVM_PTP_PHYS_COUNTER 1
--
2.47.3
next prev parent reply other threads:[~2026-11-04 8:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-04 8:48 [PATCH 00/16] KVM: arm64: selftests: Tests for protected VMs Fuad Tabba
2026-11-04 8:48 ` [PATCH 01/16] KVM: arm64: selftests: Inject an abort before a vCPU's first run Fuad Tabba
2026-11-04 8:48 ` [PATCH 02/16] KVM: selftests: Allow arm64 tests to create protected VMs Fuad Tabba
2026-11-05 12:16 ` Joey Gouly
2026-11-04 8:48 ` Fuad Tabba [this message]
2026-11-04 8:48 ` [PATCH 04/16] KVM: selftests: Export the ucall pool's guest physical address Fuad Tabba
2026-11-04 8:48 ` [PATCH 05/16] KVM: arm64: selftests: Add protected-VM boot trampoline Fuad Tabba
2026-11-05 13:34 ` Joey Gouly
2026-11-04 8:48 ` [PATCH 06/16] KVM: arm64: selftests: Add protected-VM library helpers Fuad Tabba
2026-11-06 14:50 ` Joey Gouly
2026-11-06 15:35 ` Fuad Tabba
2026-11-04 8:48 ` [PATCH 07/16] KVM: arm64: selftests: Add pkvm_host_abi host-interface test Fuad Tabba
2026-11-04 8:48 ` [PATCH 08/16] KVM: arm64: selftests: Add pkvm_psci multi-vCPU PSCI test Fuad Tabba
2026-11-04 8:48 ` [PATCH 09/16] KVM: arm64: selftests: Add pkvm_mem_share hypercall test Fuad Tabba
2026-11-04 8:48 ` [PATCH 10/16] KVM: arm64: selftests: Add pkvm_smccc " Fuad Tabba
2026-11-04 8:48 ` [PATCH 11/16] KVM: arm64: selftests: Add pkvm_id_regs register and trap test Fuad Tabba
2026-11-04 8:48 ` [PATCH 12/16] KVM: arm64: selftests: Add pkvm_vcpu_regs register-state test Fuad Tabba
2026-11-04 8:48 ` [PATCH 13/16] KVM: arm64: selftests: Add pkvm_irq interrupt test Fuad Tabba
2026-11-04 8:48 ` [PATCH 14/16] KVM: arm64: selftests: Add pkvm_isolation host-access test Fuad Tabba
2026-11-04 8:48 ` [PATCH 15/16] KVM: arm64: selftests: Add pkvm_lifecycle teardown test Fuad Tabba
2026-11-04 8:48 ` [PATCH 16/16] KVM: arm64: selftests: Add pkvm_exceptions debug and SError test Fuad Tabba
2026-11-04 14:10 ` [PATCH 00/16] KVM: arm64: selftests: Tests for protected VMs Joey Gouly
2026-11-04 19:38 ` Fuad Tabba
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