From: Alexandru Elisei <alexandru.elisei@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
Andre Przywara <andre.przywara@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Jintack Lim <jintack@cs.columbia.edu>,
Haibo Xu <haibo.xu@linaro.org>,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
Chase Conklin <chase.conklin@arm.com>,
"Russell King (Oracle)" <linux@armlinux.org.uk>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
karl.heubaum@oracle.com, mihai.carabas@oracle.com,
miguel.luis@oracle.com, kernel-team@android.com
Subject: Re: [PATCH v6 20/64] KVM: arm64: nv: Trap CPACR_EL1 access in virtual EL2
Date: Fri, 4 Feb 2022 11:10:35 +0000 [thread overview]
Message-ID: <Yf0Jm4vUNrnTcylS@monolith.localdoman> (raw)
In-Reply-To: <20220128121912.509006-21-maz@kernel.org>
Hi Marc,
This also what Arm ARM recommends for a guest with HCR_EL2.E2H = 0 in section
D5.7.1 "Armv8.3 nested virtualization functionality".
The L1 guest hypervisor running at virtual EL2 is restoring the guest context at
EL1, but the host is actually running in hardware EL1 and the register access
needs to be trapped because it affects the guest hypervisor. And because the L0
host is running with HCR_EL2.E2H = 1, writes to CPACR_EL1 are redirected to
CPTR_EL2.
Also the reset value is correct, as CPACR_EL1 either has RES0 or UNKNOWN fields
are reset.
Looks good to me:
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Thanks,
Alex
On Fri, Jan 28, 2022 at 12:18:28PM +0000, Marc Zyngier wrote:
> From: Jintack Lim <jintack.lim@linaro.org>
>
> For the same reason we trap virtual memory register accesses in virtual
> EL2, we trap CPACR_EL1 access too; We allow the virtual EL2 mode to
> access EL1 system register state instead of the virtual EL2 one.
>
> Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/kvm/hyp/vhe/switch.c | 3 +++
> arch/arm64/kvm/sys_regs.c | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
> index 6ed9e4893a02..1e6a00e7bfb3 100644
> --- a/arch/arm64/kvm/hyp/vhe/switch.c
> +++ b/arch/arm64/kvm/hyp/vhe/switch.c
> @@ -64,6 +64,9 @@ static void __activate_traps(struct kvm_vcpu *vcpu)
> __activate_traps_fpsimd32(vcpu);
> }
>
> + if (vcpu_is_el2(vcpu) && !vcpu_el2_e2h_is_set(vcpu))
> + val |= CPTR_EL2_TCPAC;
> +
> write_sysreg(val, cpacr_el1);
>
> write_sysreg(__this_cpu_read(kvm_hyp_vector), vbar_el1);
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index 4f2bcc1e0c25..7f074a7f6eb3 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -1819,7 +1819,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
>
> { SYS_DESC(SYS_SCTLR_EL1), access_vm_reg, reset_val, SCTLR_EL1, 0x00C50078 },
> { SYS_DESC(SYS_ACTLR_EL1), access_actlr, reset_actlr, ACTLR_EL1 },
> - { SYS_DESC(SYS_CPACR_EL1), NULL, reset_val, CPACR_EL1, 0 },
> + { SYS_DESC(SYS_CPACR_EL1), access_rw, reset_val, CPACR_EL1, 0 },
>
> MTE_REG(RGSR_EL1),
> MTE_REG(GCR_EL1),
> --
> 2.30.2
>
WARNING: multiple messages have this Message-ID (diff)
From: Alexandru Elisei <alexandru.elisei@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: kernel-team@android.com, kvm@vger.kernel.org,
Andre Przywara <andre.przywara@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Chase Conklin <chase.conklin@arm.com>,
kvmarm@lists.cs.columbia.edu, mihai.carabas@oracle.com,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
"Russell King \(Oracle\)" <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v6 20/64] KVM: arm64: nv: Trap CPACR_EL1 access in virtual EL2
Date: Fri, 4 Feb 2022 11:10:35 +0000 [thread overview]
Message-ID: <Yf0Jm4vUNrnTcylS@monolith.localdoman> (raw)
In-Reply-To: <20220128121912.509006-21-maz@kernel.org>
Hi Marc,
This also what Arm ARM recommends for a guest with HCR_EL2.E2H = 0 in section
D5.7.1 "Armv8.3 nested virtualization functionality".
The L1 guest hypervisor running at virtual EL2 is restoring the guest context at
EL1, but the host is actually running in hardware EL1 and the register access
needs to be trapped because it affects the guest hypervisor. And because the L0
host is running with HCR_EL2.E2H = 1, writes to CPACR_EL1 are redirected to
CPTR_EL2.
Also the reset value is correct, as CPACR_EL1 either has RES0 or UNKNOWN fields
are reset.
Looks good to me:
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Thanks,
Alex
On Fri, Jan 28, 2022 at 12:18:28PM +0000, Marc Zyngier wrote:
> From: Jintack Lim <jintack.lim@linaro.org>
>
> For the same reason we trap virtual memory register accesses in virtual
> EL2, we trap CPACR_EL1 access too; We allow the virtual EL2 mode to
> access EL1 system register state instead of the virtual EL2 one.
>
> Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/kvm/hyp/vhe/switch.c | 3 +++
> arch/arm64/kvm/sys_regs.c | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
> index 6ed9e4893a02..1e6a00e7bfb3 100644
> --- a/arch/arm64/kvm/hyp/vhe/switch.c
> +++ b/arch/arm64/kvm/hyp/vhe/switch.c
> @@ -64,6 +64,9 @@ static void __activate_traps(struct kvm_vcpu *vcpu)
> __activate_traps_fpsimd32(vcpu);
> }
>
> + if (vcpu_is_el2(vcpu) && !vcpu_el2_e2h_is_set(vcpu))
> + val |= CPTR_EL2_TCPAC;
> +
> write_sysreg(val, cpacr_el1);
>
> write_sysreg(__this_cpu_read(kvm_hyp_vector), vbar_el1);
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index 4f2bcc1e0c25..7f074a7f6eb3 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -1819,7 +1819,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
>
> { SYS_DESC(SYS_SCTLR_EL1), access_vm_reg, reset_val, SCTLR_EL1, 0x00C50078 },
> { SYS_DESC(SYS_ACTLR_EL1), access_actlr, reset_actlr, ACTLR_EL1 },
> - { SYS_DESC(SYS_CPACR_EL1), NULL, reset_val, CPACR_EL1, 0 },
> + { SYS_DESC(SYS_CPACR_EL1), access_rw, reset_val, CPACR_EL1, 0 },
>
> MTE_REG(RGSR_EL1),
> MTE_REG(GCR_EL1),
> --
> 2.30.2
>
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Alexandru Elisei <alexandru.elisei@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
Andre Przywara <andre.przywara@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Jintack Lim <jintack@cs.columbia.edu>,
Haibo Xu <haibo.xu@linaro.org>,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
Chase Conklin <chase.conklin@arm.com>,
"Russell King (Oracle)" <linux@armlinux.org.uk>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
karl.heubaum@oracle.com, mihai.carabas@oracle.com,
miguel.luis@oracle.com, kernel-team@android.com
Subject: Re: [PATCH v6 20/64] KVM: arm64: nv: Trap CPACR_EL1 access in virtual EL2
Date: Fri, 4 Feb 2022 11:10:35 +0000 [thread overview]
Message-ID: <Yf0Jm4vUNrnTcylS@monolith.localdoman> (raw)
In-Reply-To: <20220128121912.509006-21-maz@kernel.org>
Hi Marc,
This also what Arm ARM recommends for a guest with HCR_EL2.E2H = 0 in section
D5.7.1 "Armv8.3 nested virtualization functionality".
The L1 guest hypervisor running at virtual EL2 is restoring the guest context at
EL1, but the host is actually running in hardware EL1 and the register access
needs to be trapped because it affects the guest hypervisor. And because the L0
host is running with HCR_EL2.E2H = 1, writes to CPACR_EL1 are redirected to
CPTR_EL2.
Also the reset value is correct, as CPACR_EL1 either has RES0 or UNKNOWN fields
are reset.
Looks good to me:
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Thanks,
Alex
On Fri, Jan 28, 2022 at 12:18:28PM +0000, Marc Zyngier wrote:
> From: Jintack Lim <jintack.lim@linaro.org>
>
> For the same reason we trap virtual memory register accesses in virtual
> EL2, we trap CPACR_EL1 access too; We allow the virtual EL2 mode to
> access EL1 system register state instead of the virtual EL2 one.
>
> Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/kvm/hyp/vhe/switch.c | 3 +++
> arch/arm64/kvm/sys_regs.c | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
> index 6ed9e4893a02..1e6a00e7bfb3 100644
> --- a/arch/arm64/kvm/hyp/vhe/switch.c
> +++ b/arch/arm64/kvm/hyp/vhe/switch.c
> @@ -64,6 +64,9 @@ static void __activate_traps(struct kvm_vcpu *vcpu)
> __activate_traps_fpsimd32(vcpu);
> }
>
> + if (vcpu_is_el2(vcpu) && !vcpu_el2_e2h_is_set(vcpu))
> + val |= CPTR_EL2_TCPAC;
> +
> write_sysreg(val, cpacr_el1);
>
> write_sysreg(__this_cpu_read(kvm_hyp_vector), vbar_el1);
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index 4f2bcc1e0c25..7f074a7f6eb3 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -1819,7 +1819,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
>
> { SYS_DESC(SYS_SCTLR_EL1), access_vm_reg, reset_val, SCTLR_EL1, 0x00C50078 },
> { SYS_DESC(SYS_ACTLR_EL1), access_actlr, reset_actlr, ACTLR_EL1 },
> - { SYS_DESC(SYS_CPACR_EL1), NULL, reset_val, CPACR_EL1, 0 },
> + { SYS_DESC(SYS_CPACR_EL1), access_rw, reset_val, CPACR_EL1, 0 },
>
> MTE_REG(RGSR_EL1),
> MTE_REG(GCR_EL1),
> --
> 2.30.2
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-02-04 11:10 UTC|newest]
Thread overview: 378+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-28 12:18 [PATCH v6 00/64] KVM: arm64: ARMv8.3/8.4 Nested Virtualization support Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 01/64] arm64: Add ARM64_HAS_NESTED_VIRT cpufeature Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 14:22 ` Russell King (Oracle)
2022-02-01 14:22 ` Russell King (Oracle)
2022-02-01 14:22 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 02/64] KVM: arm64: nv: Introduce nested virtualization VCPU feature Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 03/64] KVM: arm64: nv: Reset VCPU to EL2 registers if VCPU nested virt is set Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 11:40 ` Alexandru Elisei
2022-02-02 11:40 ` Alexandru Elisei
2022-02-02 11:40 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 04/64] KVM: arm64: nv: Allow userspace to set PSR_MODE_EL2x Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 11:53 ` Alexandru Elisei
2022-02-02 11:53 ` Alexandru Elisei
2022-02-02 11:53 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 05/64] KVM: arm64: nv: Add EL2 system registers to vcpu context Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-11 16:35 ` Miguel Luis
2022-02-11 16:35 ` Miguel Luis
2022-02-11 16:35 ` Miguel Luis
2022-01-28 12:18 ` [PATCH v6 06/64] KVM: arm64: nv: Add nested virt VCPU primitives for vEL2 VCPU state Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 12:10 ` Alexandru Elisei
2022-02-02 12:10 ` Alexandru Elisei
2022-02-02 12:10 ` Alexandru Elisei
2022-02-14 12:39 ` Miguel Luis
2022-02-14 12:39 ` Miguel Luis
2022-02-14 12:39 ` Miguel Luis
2022-02-14 14:20 ` Marc Zyngier
2022-02-14 14:20 ` Marc Zyngier
2022-02-14 14:20 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 07/64] KVM: arm64: nv: Handle HCR_EL2.NV system register traps Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 14:32 ` Russell King (Oracle)
2022-02-01 14:32 ` Russell King (Oracle)
2022-02-01 14:32 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 08/64] KVM: arm64: nv: Reset VMPIDR_EL2 and VPIDR_EL2 to sane values Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 09/64] KVM: arm64: nv: Support virtual EL2 exceptions Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 15:23 ` Alexandru Elisei
2022-02-02 15:23 ` Alexandru Elisei
2022-02-02 15:23 ` Alexandru Elisei
2022-02-03 17:43 ` Marc Zyngier
2022-02-03 17:43 ` Marc Zyngier
2022-02-03 17:43 ` Marc Zyngier
2022-02-04 11:47 ` Alexandru Elisei
2022-02-04 11:47 ` Alexandru Elisei
2022-02-04 11:47 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 10/64] KVM: arm64: nv: Inject HVC exceptions to the virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 11/64] KVM: arm64: nv: Handle trapped ERET from " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 12/64] KVM: arm64: nv: Add non-VHE-EL2->EL1 translation helpers Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:37 ` Russell King (Oracle)
2022-02-01 16:37 ` Russell King (Oracle)
2022-02-01 16:37 ` Russell King (Oracle)
2022-02-02 17:08 ` Alexandru Elisei
2022-02-02 17:08 ` Alexandru Elisei
2022-02-02 17:08 ` Alexandru Elisei
2022-02-03 18:29 ` Marc Zyngier
2022-02-03 18:29 ` Marc Zyngier
2022-02-03 18:29 ` Marc Zyngier
2022-02-04 12:05 ` Alexandru Elisei
2022-02-04 12:05 ` Alexandru Elisei
2022-02-04 12:05 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 13/64] KVM: arm64: nv: Handle virtual EL2 registers in vcpu_read/write_sys_reg() Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:40 ` Russell King (Oracle)
2022-02-01 16:40 ` Russell King (Oracle)
2022-02-01 16:40 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 14/64] KVM: arm64: nv: Handle SPSR_EL2 specially Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:43 ` Russell King (Oracle)
2022-02-01 16:43 ` Russell King (Oracle)
2022-02-01 16:43 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 15/64] KVM: arm64: nv: Handle HCR_EL2.E2H specially Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:51 ` Russell King (Oracle)
2022-02-01 16:51 ` Russell King (Oracle)
2022-02-01 16:51 ` Russell King (Oracle)
2022-02-01 18:17 ` Marc Zyngier
2022-02-01 18:17 ` Marc Zyngier
2022-02-01 18:17 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 16/64] KVM: arm64: nv: Save/Restore vEL2 sysregs Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-03 15:14 ` Alexandru Elisei
2022-02-03 15:14 ` Alexandru Elisei
2022-02-03 15:14 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 17/64] KVM: arm64: nv: Emulate PSTATE.M for a guest hypervisor Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 18:06 ` Russell King (Oracle)
2022-02-01 18:06 ` Russell King (Oracle)
2022-02-01 18:06 ` Russell King (Oracle)
2022-02-03 15:53 ` Alexandru Elisei
2022-02-03 15:53 ` Alexandru Elisei
2022-02-03 15:53 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 18/64] KVM: arm64: nv: Trap EL1 VM register accesses in virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 18:08 ` Russell King (Oracle)
2022-02-01 18:08 ` Russell King (Oracle)
2022-02-01 18:08 ` Russell King (Oracle)
2022-02-03 17:11 ` Alexandru Elisei
2022-02-03 17:11 ` Alexandru Elisei
2022-02-03 17:11 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 19/64] KVM: arm64: nv: Trap SPSR_EL1, ELR_EL1 and VBAR_EL1 from " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 18:13 ` Russell King (Oracle)
2022-02-01 18:13 ` Russell King (Oracle)
2022-02-01 18:13 ` Russell King (Oracle)
2022-02-03 17:27 ` Alexandru Elisei
2022-02-03 17:27 ` Alexandru Elisei
2022-02-03 17:27 ` Alexandru Elisei
2022-02-04 10:58 ` Alexandru Elisei
2022-02-04 10:58 ` Alexandru Elisei
2022-02-04 10:58 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 20/64] KVM: arm64: nv: Trap CPACR_EL1 access in " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-04 11:10 ` Alexandru Elisei [this message]
2022-02-04 11:10 ` Alexandru Elisei
2022-02-04 11:10 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 21/64] KVM: arm64: nv: Handle PSCI call via smc from the guest Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-04 14:02 ` Alexandru Elisei
2022-02-04 14:02 ` Alexandru Elisei
2022-02-04 14:02 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 22/64] KVM: arm64: nv: Respect virtual HCR_EL2.TWX setting Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-04 15:40 ` Alexandru Elisei
2022-02-04 15:40 ` Alexandru Elisei
2022-02-04 15:40 ` Alexandru Elisei
2022-02-04 16:01 ` Alexandru Elisei
2022-02-04 16:01 ` Alexandru Elisei
2022-02-04 16:01 ` Alexandru Elisei
2022-02-07 15:38 ` Alexandru Elisei
2022-02-07 15:38 ` Alexandru Elisei
2022-02-07 15:38 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 23/64] KVM: arm64: nv: Respect virtual CPTR_EL2.{TFP,FPEN} settings Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 23/64] KVM: arm64: nv: Respect virtual CPTR_EL2.{TFP, FPEN} settings Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 24/64] KVM: arm64: nv: Respect the virtual HCR_EL2.NV bit setting Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-07 15:33 ` Alexandru Elisei
2022-02-07 15:33 ` Alexandru Elisei
2022-02-07 15:33 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 25/64] KVM: arm64: nv: Respect virtual HCR_EL2.TVM and TRVM settings Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-07 16:18 ` Alexandru Elisei
2022-02-07 16:18 ` Alexandru Elisei
2022-02-07 16:18 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 26/64] KVM: arm64: nv: Respect the virtual HCR_EL2.NV1 bit setting Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-07 16:36 ` Alexandru Elisei
2022-02-07 16:36 ` Alexandru Elisei
2022-02-07 16:36 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 27/64] KVM: arm64: nv: Allow a sysreg to be hidden from userspace only Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-08 14:36 ` Alexandru Elisei
2022-02-08 14:36 ` Alexandru Elisei
2022-02-08 14:36 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 28/64] KVM: arm64: nv: Emulate EL12 register accesses from the virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-08 15:35 ` Alexandru Elisei
2022-02-08 15:35 ` Alexandru Elisei
2022-02-08 15:35 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 29/64] KVM: arm64: nv: Forward debug traps to the nested guest Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 11:04 ` Alexandru Elisei
2022-02-09 11:04 ` Alexandru Elisei
2022-02-09 11:04 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 30/64] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 16:41 ` Alexandru Elisei
2022-02-09 16:41 ` Alexandru Elisei
2022-02-09 16:41 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 31/64] KVM: arm64: nv: Only toggle cache for virtual EL2 when SCTLR_EL2 changes Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 16:56 ` Alexandru Elisei
2022-02-09 16:56 ` Alexandru Elisei
2022-02-09 16:56 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 32/64] KVM: arm64: nv: Filter out unsupported features from ID regs Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 17:33 ` Alexandru Elisei
2022-02-09 17:33 ` Alexandru Elisei
2022-02-09 17:33 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 33/64] KVM: arm64: nv: Hide RAS from nested guests Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 34/64] KVM: arm64: nv: Support multiple nested Stage-2 mmu structures Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-16 16:12 ` Alexandru Elisei
2022-02-16 16:12 ` Alexandru Elisei
2022-02-16 16:12 ` Alexandru Elisei
2022-02-24 14:25 ` Alexandru Elisei
2022-02-24 14:25 ` Alexandru Elisei
2022-02-24 14:25 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 35/64] KVM: arm64: nv: Implement nested Stage-2 page table walk logic Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 36/64] KVM: arm64: nv: Handle shadow stage 2 page faults Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-17 15:23 ` Alexandru Elisei
2022-02-17 15:23 ` Alexandru Elisei
2022-02-17 15:23 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 37/64] KVM: arm64: nv: Restrict S2 RD/WR permissions to match the guest's Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-17 16:29 ` Alexandru Elisei
2022-02-17 16:29 ` Alexandru Elisei
2022-02-17 16:29 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 38/64] KVM: arm64: nv: Unmap/flush shadow stage 2 page tables Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-22 16:13 ` Alexandru Elisei
2022-02-22 16:13 ` Alexandru Elisei
2022-02-22 16:13 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 39/64] KVM: arm64: nv: Set a handler for the system instruction traps Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-24 11:59 ` Alexandru Elisei
2022-02-24 11:59 ` Alexandru Elisei
2022-02-24 11:59 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 40/64] KVM: arm64: nv: Trap and emulate AT instructions from virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-24 15:39 ` Alexandru Elisei
2022-02-24 15:39 ` Alexandru Elisei
2022-02-24 15:39 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 41/64] KVM: arm64: nv: Trap and emulate TLBI " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-24 15:56 ` Alexandru Elisei
2022-02-24 15:56 ` Alexandru Elisei
2022-02-24 15:56 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 42/64] KVM: arm64: nv: Fold guest's HCR_EL2 configuration into the host's Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-25 13:45 ` Alexandru Elisei
2022-02-25 13:45 ` Alexandru Elisei
2022-02-25 13:45 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 43/64] KVM: arm64: nv: arch_timer: Support hyp timer emulation Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-03-07 14:52 ` Alexandru Elisei
2022-03-07 14:52 ` Alexandru Elisei
2022-03-07 14:52 ` Alexandru Elisei
2022-03-07 15:48 ` Marc Zyngier
2022-03-07 15:48 ` Marc Zyngier
2022-03-07 15:48 ` Marc Zyngier
2022-03-07 16:28 ` Alexandru Elisei
2022-03-07 16:28 ` Alexandru Elisei
2022-03-07 16:28 ` Alexandru Elisei
2022-03-07 16:52 ` Marc Zyngier
2022-03-07 16:52 ` Marc Zyngier
2022-03-07 16:52 ` Marc Zyngier
2022-03-07 17:13 ` Alexandru Elisei
2022-03-07 17:13 ` Alexandru Elisei
2022-03-07 17:13 ` Alexandru Elisei
2022-03-07 15:23 ` Alexandru Elisei
2022-03-07 15:23 ` Alexandru Elisei
2022-03-07 15:23 ` Alexandru Elisei
2022-03-07 15:44 ` Marc Zyngier
2022-03-07 15:44 ` Marc Zyngier
2022-03-07 15:44 ` Marc Zyngier
2022-03-07 16:24 ` Alexandru Elisei
2022-03-07 16:24 ` Alexandru Elisei
2022-03-07 16:24 ` Alexandru Elisei
2022-03-07 16:40 ` Marc Zyngier
2022-03-07 16:40 ` Marc Zyngier
2022-03-07 16:40 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 44/64] KVM: arm64: nv: Add handling of EL2-specific timer registers Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-03-07 16:01 ` Alexandru Elisei
2022-03-07 16:01 ` Alexandru Elisei
2022-03-07 16:01 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 45/64] KVM: arm64: nv: Load timer before the GIC Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 46/64] KVM: arm64: nv: Nested GICv3 Support Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 47/64] KVM: arm64: nv: Don't load the GICv4 context on entering a nested guest Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 48/64] KVM: arm64: nv: vgic: Emulate the HW bit in software Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 49/64] KVM: arm64: nv: vgic: Allow userland to set VGIC maintenance IRQ Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 50/64] KVM: arm64: nv: Implement maintenance interrupt forwarding Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 51/64] KVM: arm64: nv: Add nested GICv3 tracepoints Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 52/64] KVM: arm64: nv: Allow userspace to request KVM_ARM_VCPU_NESTED_VIRT Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 53/64] KVM: arm64: nv: Add handling of ARMv8.4-TTL TLB invalidation Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 54/64] KVM: arm64: nv: Invalidate TLBs based on shadow S2 TTL-like information Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 55/64] KVM: arm64: nv: Tag shadow S2 entries with nested level Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 56/64] KVM: arm64: nv: Add include containing the VNCR_EL2 offsets Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 57/64] KVM: arm64: nv: Map VNCR-capable registers to a separate page Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 58/64] KVM: arm64: nv: Move nested vgic state into the sysreg file Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 59/64] KVM: arm64: Add ARMv8.4 Enhanced Nested Virt cpufeature Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 60/64] KVM: arm64: nv: Sync nested timer state with ARMv8.4 Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-04-01 17:51 ` Chase Conklin
2022-04-01 17:51 ` Chase Conklin
2022-04-01 17:51 ` Chase Conklin
2022-01-28 12:19 ` [PATCH v6 61/64] KVM: arm64: nv: Allocate VNCR page when required Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 62/64] KVM: arm64: nv: Enable ARMv8.4-NV support Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 63/64] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 64/64] KVM: arm64: nv: Fast-track EL1 TLBIs for VHE guests Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
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