Module Name: src Committed By: jmcneill Date: Sat Jan 9 13:42:25 UTC 2021
Modified Files: src/sys/arch/aarch64/aarch64: pmapboot.c Log Message: Fix a potential issue in pmapboot_enter_range and pmapboot_enter where if the va and size are not page aligned, there is a possibility of the last page not being taken into consideration. To generate a diff of this commit: cvs rdiff -u -r1.14 -r1.15 src/sys/arch/aarch64/aarch64/pmapboot.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/aarch64/aarch64/pmapboot.c diff -u src/sys/arch/aarch64/aarch64/pmapboot.c:1.14 src/sys/arch/aarch64/aarch64/pmapboot.c:1.15 --- src/sys/arch/aarch64/aarch64/pmapboot.c:1.14 Fri Dec 11 18:03:33 2020 +++ src/sys/arch/aarch64/aarch64/pmapboot.c Sat Jan 9 13:42:25 2021 @@ -1,4 +1,4 @@ -/* $NetBSD: pmapboot.c,v 1.14 2020/12/11 18:03:33 skrll Exp $ */ +/* $NetBSD: pmapboot.c,v 1.15 2021/01/09 13:42:25 jmcneill Exp $ */ /* * Copyright (c) 2018 Ryo Shimizu <r...@nerv.org> @@ -27,7 +27,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: pmapboot.c,v 1.14 2020/12/11 18:03:33 skrll Exp $"); +__KERNEL_RCSID(0, "$NetBSD: pmapboot.c,v 1.15 2021/01/09 13:42:25 jmcneill Exp $"); #include "opt_arm_debug.h" #include "opt_ddb.h" @@ -240,8 +240,8 @@ pmapboot_enter(vaddr_t va, paddr_t pa, p va, pa, size, blocksize, attr); pa &= ~(blocksize - 1); + va_end = (va + size + blocksize - 1) & ~(blocksize - 1); va &= ~(blocksize - 1); - va_end = (va + size + blocksize- 1) & ~(blocksize - 1); #ifdef OPTIMIZE_TLB_CONTIG va_start = va; #endif @@ -473,8 +473,8 @@ pmapboot_enter_range(vaddr_t va, paddr_t vsize_t left, mapsize, nblocks; int nskip = 0; - va = trunc_page(va); vend = round_page(va + size); + va = trunc_page(va); left = vend - va; /* align the start address to L2 blocksize */