From: Marc Zyngier <maz@kernel.org> To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: James Morse <james.morse@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Oliver Upton <oliver.upton@linux.dev>, Zenghui Yu <yuzenghui@huawei.com>, Joey Gouly <joey.gouly@arm.com>, Fuad Tabba <tabba@google.com>, Mostafa Saleh <smostafa@google.com>, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com> Subject: [PATCH v4 00/15] KVM/arm64: Add NV support for ERET and PAuth Date: Fri, 19 Apr 2024 11:29:20 +0100 [thread overview] Message-ID: <20240419102935.1935571-1-maz@kernel.org> (raw) This is the fourth version of this series introducing ERET and PAuth support for NV guests, and now the base prefix for the NV support series. Unless someone shouts, I intend to take this in for 6.10. * From v3 [3] - Check for NV support before checking for HCR_EL2.NV on vpcu exit - Rebased on 6.9-rc1 * From v2 [2] - Enforce that both Address and Generic authentication use the same algorithm - Reduce PAuth trapping by eagerly setting the HCR_EL2.API/APK bits - Collected RBs, with thanks - Rebased on kvmarm-6.9 * From v1 [1]: - Don't repaint the ISS_ERET* definitions, but provide reasonable helpers instead - Dropped superfluous VNCR_EL2 definition - Amended comments and creative spelling [1] https://lore.kernel.org/r/20240219092014.783809-1-maz@kernel.org [2] https://lore.kernel.org/r/20240226100601.2379693-1-maz@kernel.org [3] https://lore.kernel.org/r/20240321155356.3236459-1-maz@kernel.org Marc Zyngier (15): KVM: arm64: Harden __ctxt_sys_reg() against out-of-range values KVM: arm64: Add helpers for ESR_ELx_ERET_ISS_ERET* KVM: arm64: Constraint PAuth support to consistent implementations KVM: arm64: nv: Drop VCPU_HYP_CONTEXT flag KVM: arm64: nv: Configure HCR_EL2 for FEAT_NV2 KVM: arm64: nv: Add trap forwarding for ERET and SMC KVM: arm64: nv: Fast-track 'InHost' exception returns KVM: arm64: nv: Honor HFGITR_EL2.ERET being set KVM: arm64: nv: Handle HCR_EL2.{API,APK} independently KVM: arm64: nv: Reinject PAC exceptions caused by HCR_EL2.API==0 KVM: arm64: nv: Add kvm_has_pauth() helper KVM: arm64: nv: Add emulation for ERETAx instructions KVM: arm64: nv: Handle ERETA[AB] instructions KVM: arm64: nv: Advertise support for PAuth KVM: arm64: Drop trapping of PAuth instructions/keys arch/arm64/include/asm/esr.h | 12 ++ arch/arm64/include/asm/kvm_emulate.h | 10 -- arch/arm64/include/asm/kvm_host.h | 26 +++- arch/arm64/include/asm/kvm_nested.h | 13 ++ arch/arm64/include/asm/kvm_ptrauth.h | 21 +++ arch/arm64/include/asm/pgtable-hwdef.h | 1 + arch/arm64/kvm/Makefile | 1 + arch/arm64/kvm/arm.c | 83 +++++++++- arch/arm64/kvm/emulate-nested.c | 66 +++++--- arch/arm64/kvm/handle_exit.c | 36 ++++- arch/arm64/kvm/hyp/include/hyp/switch.h | 62 +------- arch/arm64/kvm/hyp/nvhe/switch.c | 4 +- arch/arm64/kvm/hyp/vhe/switch.c | 96 +++++++++++- arch/arm64/kvm/nested.c | 8 +- arch/arm64/kvm/pauth.c | 196 ++++++++++++++++++++++++ 15 files changed, 514 insertions(+), 121 deletions(-) create mode 100644 arch/arm64/kvm/pauth.c -- 2.39.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org> To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: James Morse <james.morse@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Oliver Upton <oliver.upton@linux.dev>, Zenghui Yu <yuzenghui@huawei.com>, Joey Gouly <joey.gouly@arm.com>, Fuad Tabba <tabba@google.com>, Mostafa Saleh <smostafa@google.com>, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com> Subject: [PATCH v4 00/15] KVM/arm64: Add NV support for ERET and PAuth Date: Fri, 19 Apr 2024 11:29:20 +0100 [thread overview] Message-ID: <20240419102935.1935571-1-maz@kernel.org> (raw) This is the fourth version of this series introducing ERET and PAuth support for NV guests, and now the base prefix for the NV support series. Unless someone shouts, I intend to take this in for 6.10. * From v3 [3] - Check for NV support before checking for HCR_EL2.NV on vpcu exit - Rebased on 6.9-rc1 * From v2 [2] - Enforce that both Address and Generic authentication use the same algorithm - Reduce PAuth trapping by eagerly setting the HCR_EL2.API/APK bits - Collected RBs, with thanks - Rebased on kvmarm-6.9 * From v1 [1]: - Don't repaint the ISS_ERET* definitions, but provide reasonable helpers instead - Dropped superfluous VNCR_EL2 definition - Amended comments and creative spelling [1] https://lore.kernel.org/r/20240219092014.783809-1-maz@kernel.org [2] https://lore.kernel.org/r/20240226100601.2379693-1-maz@kernel.org [3] https://lore.kernel.org/r/20240321155356.3236459-1-maz@kernel.org Marc Zyngier (15): KVM: arm64: Harden __ctxt_sys_reg() against out-of-range values KVM: arm64: Add helpers for ESR_ELx_ERET_ISS_ERET* KVM: arm64: Constraint PAuth support to consistent implementations KVM: arm64: nv: Drop VCPU_HYP_CONTEXT flag KVM: arm64: nv: Configure HCR_EL2 for FEAT_NV2 KVM: arm64: nv: Add trap forwarding for ERET and SMC KVM: arm64: nv: Fast-track 'InHost' exception returns KVM: arm64: nv: Honor HFGITR_EL2.ERET being set KVM: arm64: nv: Handle HCR_EL2.{API,APK} independently KVM: arm64: nv: Reinject PAC exceptions caused by HCR_EL2.API==0 KVM: arm64: nv: Add kvm_has_pauth() helper KVM: arm64: nv: Add emulation for ERETAx instructions KVM: arm64: nv: Handle ERETA[AB] instructions KVM: arm64: nv: Advertise support for PAuth KVM: arm64: Drop trapping of PAuth instructions/keys arch/arm64/include/asm/esr.h | 12 ++ arch/arm64/include/asm/kvm_emulate.h | 10 -- arch/arm64/include/asm/kvm_host.h | 26 +++- arch/arm64/include/asm/kvm_nested.h | 13 ++ arch/arm64/include/asm/kvm_ptrauth.h | 21 +++ arch/arm64/include/asm/pgtable-hwdef.h | 1 + arch/arm64/kvm/Makefile | 1 + arch/arm64/kvm/arm.c | 83 +++++++++- arch/arm64/kvm/emulate-nested.c | 66 +++++--- arch/arm64/kvm/handle_exit.c | 36 ++++- arch/arm64/kvm/hyp/include/hyp/switch.h | 62 +------- arch/arm64/kvm/hyp/nvhe/switch.c | 4 +- arch/arm64/kvm/hyp/vhe/switch.c | 96 +++++++++++- arch/arm64/kvm/nested.c | 8 +- arch/arm64/kvm/pauth.c | 196 ++++++++++++++++++++++++ 15 files changed, 514 insertions(+), 121 deletions(-) create mode 100644 arch/arm64/kvm/pauth.c -- 2.39.2
next reply other threads:[~2024-04-19 10:30 UTC|newest] Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-19 10:29 Marc Zyngier [this message] 2024-04-19 10:29 ` [PATCH v4 00/15] KVM/arm64: Add NV support for ERET and PAuth Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 01/15] KVM: arm64: Harden __ctxt_sys_reg() against out-of-range values Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 02/15] KVM: arm64: Add helpers for ESR_ELx_ERET_ISS_ERET* Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 03/15] KVM: arm64: Constraint PAuth support to consistent implementations Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 04/15] KVM: arm64: nv: Drop VCPU_HYP_CONTEXT flag Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 05/15] KVM: arm64: nv: Configure HCR_EL2 for FEAT_NV2 Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 06/15] KVM: arm64: nv: Add trap forwarding for ERET and SMC Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 07/15] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 08/15] KVM: arm64: nv: Honor HFGITR_EL2.ERET being set Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 09/15] KVM: arm64: nv: Handle HCR_EL2.{API,APK} independently Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 10/15] KVM: arm64: nv: Reinject PAC exceptions caused by HCR_EL2.API==0 Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 11/15] KVM: arm64: nv: Add kvm_has_pauth() helper Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 12/15] KVM: arm64: nv: Add emulation for ERETAx instructions Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-23 9:22 ` Jon Hunter 2024-04-23 9:22 ` Jon Hunter 2024-04-23 9:40 ` Zenghui Yu 2024-04-23 9:40 ` Zenghui Yu 2024-04-23 11:42 ` Marc Zyngier 2024-04-23 11:42 ` Marc Zyngier 2024-04-23 12:30 ` Jon Hunter 2024-04-23 12:30 ` Jon Hunter 2024-04-23 12:09 ` Jon Hunter 2024-04-23 12:09 ` Jon Hunter 2024-04-19 10:29 ` [PATCH v4 13/15] KVM: arm64: nv: Handle ERETA[AB] instructions Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 14/15] KVM: arm64: nv: Advertise support for PAuth Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 10:29 ` [PATCH v4 15/15] KVM: arm64: Drop trapping of PAuth instructions/keys Marc Zyngier 2024-04-19 10:29 ` Marc Zyngier 2024-04-19 17:59 ` [PATCH v4 00/15] KVM/arm64: Add NV support for ERET and PAuth Oliver Upton 2024-04-19 17:59 ` Oliver Upton 2024-04-20 11:49 ` Marc Zyngier 2024-04-20 11:49 ` Marc Zyngier 2024-04-20 12:18 ` Marc Zyngier 2024-04-20 12:18 ` Marc Zyngier
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