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Fix one thing in the documentation, I meant to say only SVS_UTLS.

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This commit is contained in:
maxv 2018-02-24 19:52:46 +00:00
parent bcdb0608f9
commit 9fd7163ce9
1 changed files with 7 additions and 7 deletions
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14
sys/arch/x86/x86/svs.c
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@ -1,4 +1,4 @@
/* $NetBSD: svs.c,v 1.10 2018/02/24 10:31:30 maxv Exp $ */
/* $NetBSD: svs.c,v 1.11 2018/02/24 19:52:46 maxv Exp $ */
/*
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: svs.c,v 1.10 2018/02/24 10:31:30 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: svs.c,v 1.11 2018/02/24 19:52:46 maxv Exp $");
#include "opt_svs.h"
@ -61,9 +61,9 @@ __KERNEL_RCSID(0, "$NetBSD: svs.c,v 1.10 2018/02/24 10:31:30 maxv Exp $");
* Storage. Each CPU has one UTLS page. This page has two VAs:
*
* o When the user page tables are loaded in CR3, the VA to access this
* page is &pcpuarea->utls, defined as SVS_UTLS+UTLS_KPDIRPA in assembly.
* This VA is _constant_ across CPUs, but in the user page tables this
* VA points to the physical page of the UTLS that is _local_ to the CPU.
* page is &pcpuarea->utls, defined as SVS_UTLS in assembly. This VA is
* _constant_ across CPUs, but in the user page tables this VA points to
* the physical page of the UTLS that is _local_ to the CPU.
*
* o When the kernel page tables are loaded in CR3, the VA to access this
* page is ci->ci_svs_utls.
@ -71,7 +71,7 @@ __KERNEL_RCSID(0, "$NetBSD: svs.c,v 1.10 2018/02/24 10:31:30 maxv Exp $");
* +----------------------------------------------------------------------+
* | CPU0 Local Data (Physical Page) |
* | +------------------+ +-------------+ |
* | | User Page Tables | SVS_UTLS+UTLS_KPDIRPA --------> | cpu0's UTLS | |
* | | User Page Tables | SVS_UTLS ---------------------> | cpu0's UTLS | |
* | +------------------+ +-------------+ |
* +-------------------------------------------------------------^--------+
* |
@ -80,7 +80,7 @@ __KERNEL_RCSID(0, "$NetBSD: svs.c,v 1.10 2018/02/24 10:31:30 maxv Exp $");
* +----------------------------------------------------------------------+ |
* | CPU1 Local Data (Physical Page) | |
* | +------------------+ +-------------+ | |
* | | User Page Tables | SVS_UTLS+UTLS_KPDIRPA --------> | cpu1's UTLS | | |
* | | User Page Tables | SVS_UTLS ---------------------> | cpu1's UTLS | | |
* | +------------------+ +-------------+ | |
* +-------------------------------------------------------------^--------+ |
* | |