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>, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com> Subject: [PATCH v3 00/15] KVM/arm64: Add NV support for ERET and PAuth Date: Thu, 21 Mar 2024 15:53:41 +0000 [thread overview] Message-ID: <20240321155356.3236459-1-maz@kernel.org> (raw) This is the third version of this series introducing ERET and PAuth support for NV guests, and now the base prefix for the NV support series. Thanks again to Joey for reviewing a large part of the series! * 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 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
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>, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com> Subject: [PATCH v3 00/15] KVM/arm64: Add NV support for ERET and PAuth Date: Thu, 21 Mar 2024 15:53:41 +0000 [thread overview] Message-ID: <20240321155356.3236459-1-maz@kernel.org> (raw) This is the third version of this series introducing ERET and PAuth support for NV guests, and now the base prefix for the NV support series. Thanks again to Joey for reviewing a large part of the series! * 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 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
next reply other threads:[~2024-03-21 15:54 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-21 15:53 Marc Zyngier [this message] 2024-03-21 15:53 ` [PATCH v3 00/15] KVM/arm64: Add NV support for ERET and PAuth Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 01/15] KVM: arm64: Harden __ctxt_sys_reg() against out-of-range values Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 02/15] KVM: arm64: Add helpers for ESR_ELx_ERET_ISS_ERET* Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 03/15] KVM: arm64: Constraint PAuth support to consistent implementations Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 04/15] KVM: arm64: nv: Drop VCPU_HYP_CONTEXT flag Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-04-16 20:06 ` Oliver Upton 2024-04-16 20:06 ` Oliver Upton 2024-04-17 7:51 ` Marc Zyngier 2024-04-17 7:51 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 05/15] KVM: arm64: nv: Configure HCR_EL2 for FEAT_NV2 Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 06/15] KVM: arm64: nv: Add trap forwarding for ERET and SMC Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 07/15] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 08/15] KVM: arm64: nv: Honor HFGITR_EL2.ERET being set Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 09/15] KVM: arm64: nv: Handle HCR_EL2.{API,APK} independently Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 10/15] KVM: arm64: nv: Reinject PAC exceptions caused by HCR_EL2.API==0 Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 11/15] KVM: arm64: nv: Add kvm_has_pauth() helper Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 12/15] KVM: arm64: nv: Add emulation for ERETAx instructions Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 13/15] KVM: arm64: nv: Handle ERETA[AB] instructions Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 14/15] KVM: arm64: nv: Advertise support for PAuth Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier 2024-03-21 15:53 ` [PATCH v3 15/15] KVM: arm64: Drop trapping of PAuth instructions/keys Marc Zyngier 2024-03-21 15:53 ` Marc Zyngier
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