From: Marc Zyngier <maz@kernel.org>
To: Alexandru Elisei <alexandru.elisei@arm.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH v3 0/2] KVM: arm64: Debug fixes
Date: Wed, 7 Apr 2021 16:58:48 +0100 [thread overview]
Message-ID: <161781112106.1984801.2208066478824922199.b4-ty@kernel.org> (raw)
In-Reply-To: <20210407144857.199746-1-alexandru.elisei@arm.com>
On Wed, 7 Apr 2021 15:48:55 +0100, Alexandru Elisei wrote:
> v2 can be found at [1]. Patch #1 in this series is new.
>
> Tested on an odroid-c4 with VHE. vcpu->arch.mdcr_el2 is calculated to be
> 0x84e66. Without this patch, reading MDCR_EL2 after the first vcpu_load() in
> kvm_arch_vcpu_ioctl_run() returns 0, subsequent reads return 0xe66
> (FEAT_TFF and FEAT_SPE are not implemented by the PE). With this patch, all
> reads, including the first time the VCPU is run, return 0xe66.
>
> [...]
Applied to kvm-arm64/debug-5.13, thanks!
[1/2] Documentation: KVM: Document KVM_GUESTDBG_USE_HW control flag for arm64
commit: feb5dc3de03711d846f0b729cb12fc05cbe49ccb
[2/2] KVM: arm64: Initialize VCPU mdcr_el2 before loading it
commit: 263d6287da1433aba11c5b4046388f2cdf49675c
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
_______________________________________________
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kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Alexandru Elisei <alexandru.elisei@arm.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH v3 0/2] KVM: arm64: Debug fixes
Date: Wed, 7 Apr 2021 16:58:48 +0100 [thread overview]
Message-ID: <161781112106.1984801.2208066478824922199.b4-ty@kernel.org> (raw)
In-Reply-To: <20210407144857.199746-1-alexandru.elisei@arm.com>
On Wed, 7 Apr 2021 15:48:55 +0100, Alexandru Elisei wrote:
> v2 can be found at [1]. Patch #1 in this series is new.
>
> Tested on an odroid-c4 with VHE. vcpu->arch.mdcr_el2 is calculated to be
> 0x84e66. Without this patch, reading MDCR_EL2 after the first vcpu_load() in
> kvm_arch_vcpu_ioctl_run() returns 0, subsequent reads return 0xe66
> (FEAT_TFF and FEAT_SPE are not implemented by the PE). With this patch, all
> reads, including the first time the VCPU is run, return 0xe66.
>
> [...]
Applied to kvm-arm64/debug-5.13, thanks!
[1/2] Documentation: KVM: Document KVM_GUESTDBG_USE_HW control flag for arm64
commit: feb5dc3de03711d846f0b729cb12fc05cbe49ccb
[2/2] KVM: arm64: Initialize VCPU mdcr_el2 before loading it
commit: 263d6287da1433aba11c5b4046388f2cdf49675c
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
_______________________________________________
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:[~2021-04-07 15:59 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-07 14:48 [PATCH v3 0/2] KVM: arm64: Debug fixes Alexandru Elisei
2021-04-07 14:48 ` Alexandru Elisei
2021-04-07 14:48 ` [PATCH v3 1/2] Documentation: KVM: Document KVM_GUESTDBG_USE_HW control flag for arm64 Alexandru Elisei
2021-04-07 14:48 ` Alexandru Elisei
2021-04-07 15:50 ` Marc Zyngier
2021-04-07 15:50 ` Marc Zyngier
2021-04-07 14:48 ` [PATCH v3 2/2] KVM: arm64: Initialize VCPU mdcr_el2 before loading it Alexandru Elisei
2021-04-07 14:48 ` Alexandru Elisei
2021-04-07 15:58 ` Marc Zyngier [this message]
2021-04-07 15:58 ` [PATCH v3 0/2] KVM: arm64: Debug fixes Marc Zyngier
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