From: Peter Maydell <peter.maydell@linaro.org>
To: Alexander Graf <agraf@csgraf.de>
Cc: Eduardo Habkost <ehabkost@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
QEMU Developers <qemu-devel@nongnu.org>,
Cameron Esfahani <dirty@apple.com>,
Roman Bolshakov <r.bolshakov@yadro.com>,
qemu-arm <qemu-arm@nongnu.org>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH 8/8] hw/arm/virt: Disable highmem when on hypervisor.framework
Date: Thu, 26 Nov 2020 22:33:21 +0000 [thread overview]
Message-ID: <CAFEAcA-qiyJmuU+sAGM3F5XiXo+oUktBF+Da8NV1CfaqXrzqow@mail.gmail.com> (raw)
In-Reply-To: <54b287f7-5240-5e98-d5d8-581cccb14b82@csgraf.de>
On Thu, 26 Nov 2020 at 22:17, Alexander Graf <agraf@csgraf.de> wrote:
> Are you suggesting that on boot, we start a tiny mini-VM to enumerate
> the PARange and set highmem based on it? That sounds like absolute
> overkill to me ...
You'll likely want that for a bunch of other information too.
The KVM version of this is kvm_arm_create_scratch_host_vcpu().
In particular you must populate the ID register information
correctly because target/arm code is steadily migrating
towards "don't have ARM_FEATURE_* bits, just look at ID
register fields". You'll want some equivalent of
kvm_arm_get_host_cpu_features(), I expect.
thanks
-- PMM
next prev parent reply other threads:[~2020-11-26 22:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20201126213600.40654-1-agraf@csgraf.de>
[not found] ` <20201126213600.40654-5-agraf@csgraf.de>
2020-11-26 21:47 ` [PATCH 4/8] arm: Synchronize CPU on PSCI on Peter Maydell
2020-11-26 22:16 ` Alexander Graf
2020-11-26 22:26 ` Peter Maydell
2020-11-26 23:32 ` Alexander Graf
2020-11-27 4:41 ` Paolo Bonzini
2020-11-27 10:58 ` Alexander Graf
2020-11-27 11:21 ` Paolo Bonzini
[not found] ` <20201126213600.40654-9-agraf@csgraf.de>
2020-11-26 21:54 ` [PATCH 8/8] hw/arm/virt: Disable highmem when on hypervisor.framework Peter Maydell
2020-11-26 22:17 ` Alexander Graf
2020-11-26 22:33 ` Peter Maydell [this message]
2020-11-26 21:50 [PATCH 0/8] hvf: Implement Apple Silicon Support Alexander Graf
2020-11-26 21:50 ` [PATCH 8/8] hw/arm/virt: Disable highmem when on hypervisor.framework Alexander Graf
2020-11-26 22:14 ` Eduardo Habkost
2020-11-26 22:29 ` Peter Maydell
2020-11-27 16:26 ` Eduardo Habkost
2020-11-27 16:38 ` Peter Maydell
2020-11-27 16:47 ` Eduardo Habkost
2020-11-27 16:53 ` Peter Maydell
2020-11-27 17:17 ` Eduardo Habkost
2020-11-27 18:16 ` Peter Maydell
2020-11-27 18:20 ` Eduardo Habkost
2020-11-27 16:47 ` Peter Maydell
2020-11-30 2:40 ` Alexander Graf
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