From: Richard Henderson <rth@twiddle.net>
To: gchen gchen <xili_gchen_5257@hotmail.com>,
Riku Voipio <riku.voipio@iki.fi>, "agraf@suse.de" <agraf@suse.de>
Cc: QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH] linux-user: elfload: Still use TARGET_PAGE_SIZE for i386 guest
Date: Wed, 12 Aug 2015 08:06:59 -0700 [thread overview]
Message-ID: <55CB6113.5060907@twiddle.net> (raw)
In-Reply-To: <COL130-W43C7F9F40B37D5C7CBB57EB97E0@phx.gbl>
On 08/12/2015 12:59 AM, gchen gchen wrote:
>> Nack. There's 99 problems with host page size> guest page size. This
>> solves none of them, and in the hackiest way possible.
>>
>
> Under alpha virtual machine, if set i386 guest page size 8KB, it will
> cause failure directly (any dynamically linked binaries can not work).
Yes, I know. The same thing happens when running i386 guests on other
(non-virtual) hosts. E.g. Sparc64's 8kB page, PowerPC64's 64kB page.
> Do you have any other ideas for solving this issue?
The only complete solution that I see is to use softmmu with linux-user, so
that we properly emulate the guest pages. Yes, it will cause quite some
slow-down in emulation, but I believe it's the only reliable way.
r~
next prev parent reply other threads:[~2015-08-12 15:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <55CAE18F.9080004@hotmail.com>
2015-08-12 6:03 ` [Qemu-devel] [PATCH] linux-user: elfload: Still use TARGET_PAGE_SIZE for i386 guest gchen gchen
2015-08-12 6:45 ` Richard Henderson
[not found] ` <55CAFCD7.20405@hotmail.com>
2015-08-12 7:59 ` gchen gchen
[not found] ` <55CB0ADC.3050303@hotmail.com>
2015-08-12 9:00 ` gchen gchen
2015-09-11 4:06 ` Chen Gang
2015-08-12 15:06 ` Richard Henderson [this message]
[not found] ` <55CBF7B1.3060001@hotmail.com>
2015-08-13 1:50 ` gchen gchen
[not found] ` <55CBF7AA.2050507@hotmail.com>
2015-08-13 2:45 ` gchen gchen
2015-08-13 3:00 ` Alexander Graf
[not found] ` <55CC11C7.5070308@hotmail.com>
[not found] ` <COL130-W265E4C6CD5E6E855799910B97D0@phx.gbl>
[not found] ` <55CC44BF.3010503@hotmail.com>
[not found] ` <COL130-W43A734B70892EBF38C8CD8B97D0@phx.gbl>
[not found] ` <55CCA422.80706@twiddle.net>
[not found] ` <BLU436-SMTP24171B64C1E70913A13FD0DB97D0@phx.gbl>
2015-08-13 16:55 ` [Qemu-devel] Plan for using softmmu with linux-user Richard Henderson
[not found] ` <55CD5ECA.6090705@hotmail.com>
2015-08-14 3:22 ` gchen gchen
[not found] ` <55CD5F09.8010704@hotmail.com>
2015-08-14 3:25 ` gchen gchen
2015-08-14 8:44 ` Peter Maydell
[not found] ` <55CDB679.6000806@hotmail.com>
2015-08-14 9:37 ` gchen gchen
2015-08-14 14:44 ` Richard Henderson
2015-08-14 20:45 ` Chen Gang
[not found] ` <55D43765.9010101@hotmail.com>
2015-08-19 8:01 ` gchen gchen
[not found] ` <55DE8C0B.40808@hotmail.com>
2015-08-27 4:04 ` Chen Gang
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