view xen/include/asm-x86/delay.h @ 15812:86a154e1ef5d

[HVM] Shadow: don't shadow the p2m table.
For HVM vcpus with paging disabled, we used to shadow the p2m table,
and skip the p2m lookup to go from gfn to mfn. Instead, we now
provide a simple pagetable that gives a one-to-one mapping of 4GB, and
shadow that, making the translations from gfn to mfn via the p2m.
This removes the paging-disabled special-case code from the shadow
fault handler, and allows us to expand the p2m interface, since all HVM
translations now go through the same p2m lookups.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
author Tim Deegan <Tim.Deegan@xensource.com>
date Fri Aug 31 11:06:22 2007 +0100 (2007-08-31)
parents 41a5181f74df
line source
1 #ifndef _X86_DELAY_H
2 #define _X86_DELAY_H
4 /*
5 * Copyright (C) 1993 Linus Torvalds
6 *
7 * Delay routines calling functions in arch/i386/lib/delay.c
8 */
10 extern void __udelay(unsigned long usecs);
11 #define udelay(n) __udelay(n)
13 #endif /* defined(_X86_DELAY_H) */