From: Peter Maydell <peter.maydell@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: vincenzo.frascino@arm.com, QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [PATCH for-5.1 0/3] target/arm: mte+pauth fixes
Date: Mon, 27 Jul 2020 15:59:39 +0100 [thread overview]
Message-ID: <CAFEAcA9AzZ3RiGDoHCdo09=+EMcMrVG=0_ePBcxcZ6zdfOPWfg@mail.gmail.com> (raw)
In-Reply-To: <20200724163853.504655-1-richard.henderson@linaro.org>
On Fri, 24 Jul 2020 at 17:38, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> A couple of last minute fixes for MTE:
>
> (1) Peter pointed out that EL3's SCR.ATA needs to be set when
> we're booting a kernel directly. Similarly for API & APK.
>
> (2) Vincenzo pointed out that with RRND=1, we can't rely on
> RGSR having being initialized.
>
> I suppose the only follow-on question here is whether it is
> better to minimize the number of calls to qemu_guest_getrandom,
> or instead to name that our IMPDEF algorithm and use it for
> every call to IRG. We already have other user-space available
> RNG instructions that can drain the entropy pool, so this is
> not really different.
>
Applied to target-arm.next, thanks.
-- PMM
prev parent reply other threads:[~2020-07-27 15:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-24 16:38 [PATCH for-5.1 0/3] target/arm: mte+pauth fixes Richard Henderson
2020-07-24 16:38 ` [PATCH 1/3] hw/arm/boot: Fix PAUTH for EL3 direct kernel boot Richard Henderson
2020-07-24 16:38 ` [PATCH 2/3] hw/arm/boot: Fix MTE " Richard Henderson
2020-07-24 16:38 ` [PATCH 3/3] target/arm: Improve IMPDEF algorithm for IRG Richard Henderson
2020-07-27 14:59 ` Peter Maydell [this message]
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