From: "Andreas Färber" <afaerber@suse.de>
To: Xin Tong <xerox.time.tech@gmail.com>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] cpu_regs in target-i386
Date: Sun, 27 Nov 2011 15:12:21 +0100 [thread overview]
Message-ID: <4ED24545.1060902@suse.de> (raw)
In-Reply-To: <CALKntY1cFmpT_Vcgb_dx5+7Qe8fYxvNnLd1e9mPq5YsDChaASg@mail.gmail.com>
Am 27.11.2011 14:46, schrieb Xin Tong:
> When the x86 vcpu is initialized, a CPUX86State is qemu_mallocz'ed.
> env is used to point to it and modifications to the CPUX86State can
> thereby be done via the register that contains the env. I do not get
> what the cpu_regs[CPU_NB_REGS] are for, do not we already have a set
> of emulated x86 registers when we allocate the CPUX86State ?
I assume in i386, too, it will be a TCGv array and will be initialized
to point to individual memory offsets inside CPU*State.
So they're for convenience and readability.
HTE,
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
next prev parent reply other threads:[~2011-11-27 14:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-27 13:46 [Qemu-devel] cpu_regs in target-i386 Xin Tong
2011-11-27 14:12 ` Andreas Färber [this message]
2011-11-27 14:36 ` Xin Tong
2011-11-27 14:53 ` Andreas Färber
2011-11-27 15:23 ` Xin Tong
2011-11-27 15:43 ` Peter Maydell
2011-11-27 16:17 ` Xin Tong
2011-11-27 20:59 ` Peter Maydell
2011-11-27 23:07 ` Xin Tong
2011-11-27 23:33 ` Peter Maydell
2011-11-28 0:32 ` Xin Tong
2011-11-28 1:00 ` Xin Tong
2011-11-27 16:10 ` Andreas Färber
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