From: Dave Martin <Dave.Martin@arm.com>
To: Kristina Martsenko <kristina.martsenko@arm.com>
Cc: Amit Daniel Kachhap <amit.kachhap@arm.com>,
linux-arm-kernel@lists.infradead.org,
Marc Zyngier <marc.zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
kvmarm@lists.cs.columbia.edu,
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 9/10] KVM: arm64: docs: document KVM support of pointer authentication
Date: Wed, 27 Mar 2019 10:44:29 +0000 [thread overview]
Message-ID: <20190327104428.GV3567@e103592.cambridge.arm.com> (raw)
In-Reply-To: <23e4a9d4-e9e1-2c1f-32ce-e7fd96080437@arm.com>
On Mon, Mar 25, 2019 at 08:05:49PM +0000, Kristina Martsenko wrote:
> On 19/03/2019 08:30, Amit Daniel Kachhap wrote:
> > This adds sections for KVM API extension for pointer authentication.
> > A brief description about usage of pointer authentication for KVM guests
> > is added in the arm64 documentations.
> >
> > Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Cc: Christoffer Dall <christoffer.dall@arm.com>
> > Cc: Marc Zyngier <marc.zyngier@arm.com>
> > Cc: kvmarm@lists.cs.columbia.edu
>
> I think it makes sense to also update the Kconfig symbol description for
> CONFIG_ARM64_PTR_AUTH, since it currently only mentions userspace
> support, but now the option also enables KVM guest support.
>
> It's also worth mentioning that CONFIG_ARM64_VHE=y is required for guest
> support.
Is it worth making this dependency explicit in Kconfig?
For SVE, I have
config ARM64_SVE
depends on !KVM || ARM64_VHE
to implement this.
Cheers
---Dave
WARNING: multiple messages have this Message-ID (diff)
From: Dave Martin <Dave.Martin@arm.com>
To: Kristina Martsenko <kristina.martsenko@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
linux-kernel@vger.kernel.org,
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v7 9/10] KVM: arm64: docs: document KVM support of pointer authentication
Date: Wed, 27 Mar 2019 10:44:29 +0000 [thread overview]
Message-ID: <20190327104428.GV3567@e103592.cambridge.arm.com> (raw)
In-Reply-To: <23e4a9d4-e9e1-2c1f-32ce-e7fd96080437@arm.com>
On Mon, Mar 25, 2019 at 08:05:49PM +0000, Kristina Martsenko wrote:
> On 19/03/2019 08:30, Amit Daniel Kachhap wrote:
> > This adds sections for KVM API extension for pointer authentication.
> > A brief description about usage of pointer authentication for KVM guests
> > is added in the arm64 documentations.
> >
> > Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Cc: Christoffer Dall <christoffer.dall@arm.com>
> > Cc: Marc Zyngier <marc.zyngier@arm.com>
> > Cc: kvmarm@lists.cs.columbia.edu
>
> I think it makes sense to also update the Kconfig symbol description for
> CONFIG_ARM64_PTR_AUTH, since it currently only mentions userspace
> support, but now the option also enables KVM guest support.
>
> It's also worth mentioning that CONFIG_ARM64_VHE=y is required for guest
> support.
Is it worth making this dependency explicit in Kconfig?
For SVE, I have
config ARM64_SVE
depends on !KVM || ARM64_VHE
to implement this.
Cheers
---Dave
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-03-27 10:44 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-19 8:30 [PATCH v7 0/10] Add ARMv8.3 pointer authentication for kvm guest Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 1/10] KVM: arm64: Propagate vcpu into read_id_reg() Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 2/10] KVM: arm64: Support runtime sysreg visibility filtering Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 3/10] KVM: arm64: Move hyp_symbol_addr to fix dependency Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-20 8:49 ` Julien Thierry
2019-03-20 8:49 ` Julien Thierry
2019-03-21 5:29 ` Amit Daniel Kachhap
2019-03-21 5:29 ` Amit Daniel Kachhap
2019-03-21 5:29 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 4/10] KVM: arm/arm64: preserve host HCR_EL2 value Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 5/10] KVM: arm/arm64: preserve host MDCR_EL2 value Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-25 20:04 ` Kristina Martsenko
2019-03-25 20:04 ` Kristina Martsenko
2019-03-26 3:55 ` Amit Daniel Kachhap
2019-03-26 3:55 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 6/10] KVM: arm64: Add vcpu feature flags to control ptrauth accessibility Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 7/10] KVM: arm/arm64: context-switch ptrauth registers Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-20 12:13 ` Julien Thierry
2019-03-20 12:13 ` Julien Thierry
2019-03-21 6:08 ` Amit Daniel Kachhap
2019-03-21 6:08 ` Amit Daniel Kachhap
2019-03-21 8:29 ` Julien Thierry
2019-03-21 8:29 ` Julien Thierry
2019-03-25 20:04 ` Kristina Martsenko
2019-03-25 20:04 ` Kristina Martsenko
2019-03-26 4:03 ` Amit Daniel Kachhap
2019-03-26 4:03 ` Amit Daniel Kachhap
2019-03-26 18:01 ` Kristina Martsenko
2019-03-26 18:01 ` Kristina Martsenko
2019-03-27 3:21 ` Amit Daniel Kachhap
2019-03-27 3:21 ` Amit Daniel Kachhap
2019-03-27 3:21 ` Amit Daniel Kachhap
2019-03-27 18:16 ` James Morse
2019-03-27 18:16 ` James Morse
2019-03-27 18:16 ` James Morse
2019-03-28 11:29 ` Amit Daniel Kachhap
2019-03-28 11:29 ` Amit Daniel Kachhap
2019-03-28 18:51 ` James Morse
2019-03-28 18:51 ` James Morse
2019-03-29 5:54 ` Amit Daniel Kachhap
2019-03-29 5:54 ` Amit Daniel Kachhap
2019-03-29 5:54 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 8/10] KVM: arm64: Add capability to advertise ptrauth for guest Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-25 20:05 ` Kristina Martsenko
2019-03-25 20:05 ` Kristina Martsenko
2019-03-26 4:12 ` Amit Daniel Kachhap
2019-03-26 4:12 ` Amit Daniel Kachhap
2019-03-26 4:12 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [PATCH v7 9/10] KVM: arm64: docs: document KVM support of pointer authentication Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
2019-03-20 13:37 ` Julien Thierry
2019-03-20 13:37 ` Julien Thierry
2019-03-20 15:04 ` Kristina Martsenko
2019-03-20 15:04 ` Kristina Martsenko
2019-03-20 18:06 ` Julien Thierry
2019-03-20 18:06 ` Julien Thierry
2019-03-20 20:56 ` Kristina Martsenko
2019-03-20 20:56 ` Kristina Martsenko
2019-03-21 6:41 ` Amit Daniel Kachhap
2019-03-21 6:41 ` Amit Daniel Kachhap
2019-03-25 20:05 ` Kristina Martsenko
2019-03-25 20:05 ` Kristina Martsenko
2019-03-27 10:44 ` Dave Martin [this message]
2019-03-27 10:44 ` Dave Martin
2019-03-27 11:49 ` Amit Daniel Kachhap
2019-03-27 11:49 ` Amit Daniel Kachhap
2019-03-27 13:50 ` Dave Martin
2019-03-27 13:50 ` Dave Martin
2019-03-28 10:13 ` Amit Daniel Kachhap
2019-03-28 10:13 ` Amit Daniel Kachhap
2019-03-19 8:30 ` [kvmtool PATCH v7 10/10] KVM: arm/arm64: Add a vcpu feature for " Amit Daniel Kachhap
2019-03-19 8:30 ` Amit Daniel Kachhap
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