From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: "He, Qing" <qing.he-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: [PATCH] vmx: enable io bitmaps to avoid IO port 0x80 VMEXITs
Date: Sun, 29 Apr 2007 12:23:51 +0300 [thread overview]
Message-ID: <46346427.1060807@qumranet.com> (raw)
In-Reply-To: <37E52D09333DE2469A03574C88DBF40F048D9E-wq7ZOvIWXbM/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
He, Qing wrote:
>
> +static char *vmx_io_bitmap;
>
If you write
static char vmx_io_bitmap[PAGE_SIZE*2] __aligned(PAGE_SIZE);
you can avoid the allocation and deallocation completely. But you have
to use vmalloc_to_page() instead of __pa().
--
error compiling committee.c: too many arguments to function
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prev parent reply other threads:[~2007-04-29 9:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-29 5:33 [PATCH] vmx: enable io bitmaps to avoid IO port 0x80 VMEXITs He, Qing
[not found] ` <37E52D09333DE2469A03574C88DBF40F048D9E-wq7ZOvIWXbM/UvCtAeCM4rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-04-29 6:35 ` Neo Jia
[not found] ` <5d649bdb0704282335h2ac4ac8cn77b2b32366cd7015-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-04-29 6:55 ` He, Qing
2007-04-29 8:40 ` Avi Kivity
2007-04-29 9:23 ` Avi Kivity [this message]
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