From: Thomas Huth <thuth@redhat.com>
To: Joelle van Dyne <j@getutm.app>,
qemu-devel@nongnu.org, Peter Maydell <peter.maydell@linaro.org>
Subject: Re: [PATCH v2 0/9] iOS and Apple Silicon host support
Date: Mon, 19 Oct 2020 10:29:52 +0200 [thread overview]
Message-ID: <e96f95a1-70ae-b64f-3208-6cdbdef46ec5@redhat.com> (raw)
In-Reply-To: <20201019013928.72770-1-j@getutm.app>
On 19/10/2020 03.39, Joelle van Dyne wrote:
> These set of changes brings QEMU TCG to iOS devices and future Apple Silicon
> devices. They were originally developed last year and have been working in the
> UTM app. Recently, we ported the changes to master, re-wrote a lot of the build
> script changes for meson, and broke up the patches into more distinct units.
>
> A summary of the changes:
>
> * `CONFIG_IOS` and `CONFIG_IOS_JIT` defined when building for iOS and
> iOS specific changes (as well as unsupported code) are gated behind it.
> * A new dependency, libucontext is added since iOS does not have native ucontext
> and broken support for sigaltstack. libucontext is available as a new option
> for coroutine backend.
> * On stock iOS devices, there is a workaround for running JIT code without
> any special entitlement. It requires the JIT region to be mirror mapped with
> one region RW and another one RX. To support this style of JIT, TCG is changed
> to support writing to a different code_ptr. These changes are gated by the
> `CONFIG_IOS_JIT`.
> * For (recent) jailbroken iOS devices as well as upcoming Apple Silicon devices,
> there are new rules for applications supporting JIT (with the proper
> entitlement). These rules are implemented as well.
>
> Since v2:
>
> * Changed getting mirror pointer from a macro to inline functions
> * Split constification of TCG code pointers to separate patch
> * Removed slirp updates (will send future patch once slirp changes are in)
> * Removed shared library patch (will send future patch)
>
> -j
>
> osy (9):
> configure: option to disable host block devices
> configure: cross-compiling without cross_prefix
> qemu: add support for iOS host
> coroutine: add libucontext as external library
> tcg: add const hints for code pointers
> tcg: implement mirror mapped JIT for iOS
> tcg: mirror mapping RWX pages for iOS optional
> tcg: support JIT on Apple Silicon
> block: check availablity for preadv/pwritev on mac
Is there maybe also a way to compile-test this automatically in a macOS
container on Cirrus-CI or Travis, too? ... otherwise I'm a little bit afraid
that this support might bit-rot quite fast again, since most developers
don't have the corresponding setup...
Thomas
next prev parent reply other threads:[~2020-10-19 8:31 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-19 1:39 [PATCH v2 0/9] iOS and Apple Silicon host support Joelle van Dyne
2020-10-19 1:39 ` [PATCH v2 1/9] configure: option to disable host block devices Joelle van Dyne
2020-10-19 1:39 ` [PATCH v2 2/9] configure: cross-compiling without cross_prefix Joelle van Dyne
2020-10-19 8:07 ` Thomas Huth
2020-10-19 8:09 ` Thomas Huth
2020-10-19 11:24 ` BALATON Zoltan via
2020-10-19 22:24 ` Joelle van Dyne
2020-10-20 5:15 ` Thomas Huth
2020-10-20 8:34 ` Paolo Bonzini
2020-10-25 19:24 ` Joelle van Dyne
2020-10-26 7:54 ` Paolo Bonzini
2020-10-26 15:33 ` Joelle van Dyne
2020-10-26 16:15 ` Paolo Bonzini
2020-10-26 18:51 ` Thomas Huth
2020-10-19 1:39 ` [PATCH v2 3/9] qemu: add support for iOS host Joelle van Dyne
2020-10-19 1:39 ` [PATCH v2 4/9] coroutine: add libucontext as external library Joelle van Dyne
2020-10-19 1:39 ` [PATCH v2 5/9] tcg: add const hints for code pointers Joelle van Dyne
2020-10-19 23:19 ` Richard Henderson
2020-10-19 23:26 ` Joelle van Dyne
2020-10-19 23:27 ` Richard Henderson
2020-10-19 23:36 ` Joelle van Dyne
2020-10-19 23:41 ` Richard Henderson
2020-10-19 1:39 ` [PATCH v2 6/9] tcg: implement mirror mapped JIT for iOS Joelle van Dyne
2020-10-19 11:48 ` BALATON Zoltan via
2020-10-19 22:39 ` Joelle van Dyne
2020-10-19 23:45 ` BALATON Zoltan via
2020-10-20 0:19 ` Richard Henderson
2020-10-25 19:46 ` Joelle van Dyne
2020-10-25 20:51 ` Joelle van Dyne
2020-10-25 23:43 ` Alexander Bulekov
2020-10-19 1:39 ` [PATCH v2 7/9] tcg: mirror mapping RWX pages for iOS optional Joelle van Dyne
2020-10-20 1:27 ` Richard Henderson
2020-10-19 1:39 ` [PATCH v2 8/9] tcg: support JIT on Apple Silicon Joelle van Dyne
2020-10-19 1:39 ` [PATCH v2 9/9] block: check availablity for preadv/pwritev on mac Joelle van Dyne
2020-10-19 8:27 ` Thomas Huth
2020-10-19 22:20 ` Joelle van Dyne
2020-10-20 5:19 ` Thomas Huth
2020-10-19 8:29 ` Thomas Huth [this message]
2020-10-26 15:30 ` [PATCH v2 0/9] iOS and Apple Silicon host support Joelle van Dyne
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