From: Joey Gouly <joey.gouly@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Zenghui Yu <yuzenghui@huawei.com>, Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH v2 13/13] KVM: arm64: nv: Advertise support for PAuth
Date: Tue, 12 Mar 2024 11:21:16 +0000 [thread overview]
Message-ID: <20240312112116.GB1635791@e124191.cambridge.arm.com> (raw)
In-Reply-To: <20240226100601.2379693-14-maz@kernel.org>
On Mon, Feb 26, 2024 at 10:06:01AM +0000, Marc Zyngier wrote:
> Now that we (hopefully) correctly handle ERETAx, drop the masking
> of the PAuth feature (something that was not even complete, as
> APA3 and AGA3 were still exposed).
>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/kvm/nested.c | 8 ++------
> 1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index ced30c90521a..6813c7c7f00a 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -35,13 +35,9 @@ static u64 limit_nv_id_reg(u32 id, u64 val)
> break;
>
> case SYS_ID_AA64ISAR1_EL1:
> - /* Support everything but PtrAuth and Spec Invalidation */
> + /* Support everything but Spec Invalidation */
> val &= ~(GENMASK_ULL(63, 56) |
> - NV_FTR(ISAR1, SPECRES) |
> - NV_FTR(ISAR1, GPI) |
> - NV_FTR(ISAR1, GPA) |
> - NV_FTR(ISAR1, API) |
> - NV_FTR(ISAR1, APA));
> + NV_FTR(ISAR1, SPECRES));
> break;
>
> case SYS_ID_AA64PFR0_EL1:
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Thanks,
Joey
prev parent reply other threads:[~2024-03-12 11:21 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-26 10:05 [PATCH v2 00/13] KVM/arm64: Add NV support for ERET and PAuth Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 01/13] KVM: arm64: Harden __ctxt_sys_reg() against out-of-range values Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 02/13] KVM: arm64: Add helpers for ESR_ELx_ERET_ISS_ERET* Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 03/13] KVM: arm64: nv: Drop VCPU_HYP_CONTEXT flag Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 04/13] KVM: arm64: nv: Configure HCR_EL2 for FEAT_NV2 Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 05/13] KVM: arm64: nv: Add trap forwarding for ERET and SMC Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 06/13] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier
2024-02-28 16:08 ` Joey Gouly
2024-02-29 13:44 ` Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 07/13] KVM: arm64: nv: Honor HFGITR_EL2.ERET being set Marc Zyngier
2024-03-01 18:07 ` Joey Gouly
2024-03-01 19:14 ` Marc Zyngier
2024-03-01 20:15 ` Joey Gouly
2024-02-26 10:05 ` [PATCH v2 08/13] KVM: arm64: nv: Handle HCR_EL2.{API,APK} independently Marc Zyngier
2024-03-07 15:14 ` Joey Gouly
2024-03-07 15:58 ` Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 09/13] KVM: arm64: nv: Reinject PAC exceptions caused by HCR_EL2.API==0 Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 10/13] KVM: arm64: nv: Add kvm_has_pauth() helper Marc Zyngier
2024-02-26 10:05 ` [PATCH v2 11/13] KVM: arm64: nv: Add emulation for ERETAx instructions Marc Zyngier
2024-03-07 13:39 ` Joey Gouly
2024-03-07 14:24 ` Marc Zyngier
2024-03-08 17:20 ` Joey Gouly
2024-03-08 17:54 ` Marc Zyngier
2024-03-12 10:46 ` Joey Gouly
2024-02-26 10:06 ` [PATCH v2 12/13] KVM: arm64: nv: Handle ERETA[AB] instructions Marc Zyngier
2024-03-12 11:17 ` Joey Gouly
2024-02-26 10:06 ` [PATCH v2 13/13] KVM: arm64: nv: Advertise support for PAuth Marc Zyngier
2024-03-12 11:21 ` Joey Gouly [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240312112116.GB1635791@e124191.cambridge.arm.com \
--to=joey.gouly@arm.com \
--cc=catalin.marinas@arm.com \
--cc=james.morse@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=maz@kernel.org \
--cc=oliver.upton@linux.dev \
--cc=suzuki.poulose@arm.com \
--cc=will@kernel.org \
--cc=yuzenghui@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).