From: Richard Henderson <richard.henderson@linaro.org>
To: David Hildenbrand <david@redhat.com>, qemu-devel@nongnu.org
Cc: Thomas Huth <thuth@redhat.com>, Cornelia Huck <cohuck@redhat.com>,
Eduardo Habkost <ehabkost@redhat.com>,
Aleksandar Rikalo <arikalo@wavecomp.com>,
Riku Voipio <riku.voipio@iki.fi>,
qemu-s390x@nongnu.org,
Aleksandar Markovic <amarkovic@wavecomp.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Aurelien Jarno <aurelien@aurel32.net>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH v1 3/9] tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code
Date: Fri, 23 Aug 2019 08:22:43 -0700 [thread overview]
Message-ID: <de422b59-7e1c-3d51-573b-b15ee617f5d8@linaro.org> (raw)
In-Reply-To: <20190823100741.9621-4-david@redhat.com>
On 8/23/19 3:07 AM, David Hildenbrand wrote:
> +void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx,
> + uintptr_t retaddr)
> +{
> + CPUState *cpu = env_cpu(env);
> + CPUClass *cc;
> +
> + if (!guest_addr_valid(addr) ||
> + (size > 0 && !guest_addr_valid(addr + size - 1)) ||
I think the interface needs to remain the same between softmmu and linux-user,
and we should not allow size to cross a page here either. Which also means
that the second line here can go away -- we only need the one test vs the
single page.
r~
next prev parent reply other threads:[~2019-08-23 15:23 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-23 10:07 [Qemu-devel] [PATCH v1 0/9] tcg: probe_write() refactorings and watchpoints David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 1/9] s390x/tcg: Use guest_addr_valid() instead of h2g_valid() in probe_write_access() David Hildenbrand
2019-08-23 14:49 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 2/9] s390x/tcg: Fix length calculation " David Hildenbrand
2019-08-23 14:50 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 3/9] tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code David Hildenbrand
2019-08-23 15:17 ` Richard Henderson
2019-08-23 15:22 ` Richard Henderson [this message]
2019-08-23 15:49 ` David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 4/9] tcg: Enforce single page access in probe_write() for !CONFIG_USER_ONLY David Hildenbrand
2019-08-23 15:28 ` Richard Henderson
2019-08-23 15:29 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 5/9] mips/tcg: Call probe_write() for CONFIG_USER_ONLY as well David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 6/9] hppa/tcg: Call probe_write() also for CONFIG_USER_ONLY David Hildenbrand
2019-08-23 15:31 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 7/9] s390x/tcg: Pass a size to probe_write() in do_csst() David Hildenbrand
2019-08-23 15:32 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 8/9] exec.c: Factor out core logic of check_watchpoint() David Hildenbrand
2019-08-23 11:27 ` David Hildenbrand
2019-08-23 16:09 ` Richard Henderson
2019-08-23 18:25 ` David Hildenbrand
2019-08-24 15:27 ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 9/9] tcg: Check for watchpoints in probe_write() David Hildenbrand
2019-08-23 16:15 ` Richard Henderson
2019-08-24 19:45 ` Richard Henderson
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=de422b59-7e1c-3d51-573b-b15ee617f5d8@linaro.org \
--to=richard.henderson@linaro.org \
--cc=amarkovic@wavecomp.com \
--cc=arikalo@wavecomp.com \
--cc=aurelien@aurel32.net \
--cc=cohuck@redhat.com \
--cc=david@redhat.com \
--cc=ehabkost@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-s390x@nongnu.org \
--cc=riku.voipio@iki.fi \
--cc=rth@twiddle.net \
--cc=thuth@redhat.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).