From: Richard Henderson <richard.henderson@linaro.org>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: kettenis@openbsd.org, "Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Cameron Esfahani" <dirty@apple.com>,
qemu-devel@nongnu.org, "Roman Bolshakov" <r.bolshakov@yadro.com>,
"Alexander Graf" <agraf@csgraf.de>,
"Paolo Bonzini" <pbonzini@redhat.com>
Subject: Re: [PATCH v2] hvf: arm: Ignore cache operations on MMIO
Date: Tue, 2 Nov 2021 06:01:50 -0400 [thread overview]
Message-ID: <47d35b2d-bfbf-6ee8-a004-ad74e713db13@linaro.org> (raw)
In-Reply-To: <CAFEAcA_wBCL++KREtW2COtDC8nHAD3DRsDbWBxPr0k7i8EWRnw@mail.gmail.com>
On 11/1/21 3:35 PM, Peter Maydell wrote:
> On Mon, 1 Nov 2021 at 19:28, Richard Henderson
> <richard.henderson@linaro.org> wrote:
>>
>> On 10/26/21 3:12 AM, Alexander Graf wrote:
>>> Apple's Hypervisor.Framework forwards cache operations as MMIO traps
>>> into user space. For MMIO however, these have no meaning: There is no
>>> cache attached to them.
>>>
>>> So let's just treat cache data exits as nops.
>>>
>>> This fixes OpenBSD booting as guest.
>>>
>>> Signed-off-by: Alexander Graf <agraf@csgraf.de>
>>> Reported-by: AJ Barris <AwlsomeAlex@github.com>
>>> Reference: https://github.com/utmapp/UTM/issues/3197
>>> ---
>>> target/arm/hvf/hvf.c | 7 +++++++
>>> 1 file changed, 7 insertions(+)
>>
>> Thanks, applied to target-arm.next
>
> ...did you see my email saying I think we also need
> to test S1PTW ?
That arrived afterward.
r~
next prev parent reply other threads:[~2021-11-02 10:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-26 7:12 [PATCH v2] hvf: arm: Ignore cache operations on MMIO Alexander Graf
2021-10-26 8:57 ` Philippe Mathieu-Daudé
2021-10-26 9:34 ` Mark Kettenis
2021-10-26 16:10 ` Richard Henderson
2021-10-26 16:38 ` Alexander Graf
2021-10-26 17:39 ` Richard Henderson
2021-11-01 18:03 ` Peter Maydell
2021-11-01 17:55 ` Peter Maydell
2021-11-01 18:04 ` Richard Henderson
2021-11-01 18:02 ` Richard Henderson
2021-11-01 19:35 ` Peter Maydell
2021-11-02 10:01 ` Richard Henderson [this message]
2021-11-02 10:42 ` Peter Maydell
2021-11-02 11:15 ` Richard Henderson
2021-11-02 18:19 ` Richard Henderson
2021-11-01 18:19 ` Peter Maydell
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