From: Marc Zyngier <maz@kernel.org>
To: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Andre Przywara <andre.przywara@arm.com>,
Will Deacon <will@kernel.org>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
kvm@vger.kernel.org, kvmarm@lists.linux.dev
Subject: Re: [PATCH kvmtool v3 6/6] arm64: Generate HYP timer interrupt specifiers
Date: Mon, 04 Aug 2025 19:15:10 +0100 [thread overview]
Message-ID: <878qjzt0lt.wl-maz@kernel.org> (raw)
In-Reply-To: <aJDIG8cJQjzbwj3w@raptor>
On Mon, 04 Aug 2025 15:47:55 +0100,
Alexandru Elisei <alexandru.elisei@arm.com> wrote:
>
> KVM doesn't allow FEAT_VHE and FEAT_E2H0 to coexist (in
> nested.c::limit_nv_id_reg()), to force E2H to be RES0. Assuming my interpretion
> is correct, shouldn't the check be:
>
> if (!kvm->cfg.arch.nested_virt || kvm->cfg.arch.e2h0)
> nr--;
>
And yet KVM exposes that timer, irrespective of FEAT_VHE. Probably
something that should be addressed.
M.
--
Jazz isn't dead. It just smells funny.
next prev parent reply other threads:[~2025-08-04 18:15 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-29 9:57 [PATCH kvmtool v3 0/6] arm64: Nested virtualization support Andre Przywara
2025-07-29 9:57 ` [PATCH kvmtool v3 1/6] Sync kernel UAPI headers with v6.16 Andre Przywara
2025-07-29 9:57 ` [PATCH kvmtool v3 2/6] arm64: Initial nested virt support Andre Przywara
2025-08-04 14:41 ` Alexandru Elisei
2025-08-04 17:45 ` Marc Zyngier
2025-09-16 12:15 ` Andre Przywara
2025-07-29 9:57 ` [PATCH kvmtool v3 3/6] arm64: nested: add support for setting maintenance IRQ Andre Przywara
2025-08-04 14:43 ` Alexandru Elisei
2025-08-04 17:51 ` Marc Zyngier
2025-09-16 12:16 ` Andre Przywara
2025-07-29 9:57 ` [PATCH kvmtool v3 4/6] arm64: add counter offset control Andre Przywara
2025-08-04 14:45 ` Alexandru Elisei
2025-08-04 17:57 ` Marc Zyngier
2025-09-16 12:17 ` Andre Przywara
2025-07-29 9:57 ` [PATCH kvmtool v3 5/6] arm64: add FEAT_E2H0 support Andre Przywara
2025-08-04 14:45 ` Alexandru Elisei
2025-08-04 18:11 ` Marc Zyngier
2025-07-29 9:57 ` [PATCH kvmtool v3 6/6] arm64: Generate HYP timer interrupt specifiers Andre Przywara
2025-08-04 14:47 ` Alexandru Elisei
2025-08-04 18:15 ` Marc Zyngier [this message]
2025-09-23 16:21 ` Andre Przywara
2025-09-23 18:16 ` Marc Zyngier
2025-07-29 10:03 ` [PATCH kvmtool v3 0/6] arm64: Nested virtualization support Marc Zyngier
2025-09-08 13:25 ` Will Deacon
2025-09-16 8:51 ` Andre Przywara
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=878qjzt0lt.wl-maz@kernel.org \
--to=maz@kernel.org \
--cc=alexandru.elisei@arm.com \
--cc=andre.przywara@arm.com \
--cc=julien.thierry.kdev@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=will@kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.