lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 12 Nov 2010 18:00:29 +0000 From: Catalin Marinas <catalin.marinas@....com> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH v2 09/20] ARM: LPAE: Change setup_mm_for_reboot() to work with LPAE This function was assuming that there are only two levels of page tables. The patch changes looping over the PMD entries to make it compatible with LPAE. Signed-off-by: Catalin Marinas <catalin.marinas@....com> --- arch/arm/mm/mmu.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 4147cc6..3784acc 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1098,13 +1098,16 @@ void setup_mm_for_reboot(char mode) if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale()) base_pmdval |= PMD_BIT4; - for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++, pgd++) { + for (i = 0; i < TASK_SIZE >> PMD_SHIFT; i++) { unsigned long pmdval = (i << PMD_SHIFT) | base_pmdval; pmd_t *pmd; + unsigned long addr = i << PMD_SHIFT; - pmd = pmd_off(pgd, i << PMD_SHIFT); + pmd = pmd_off(pgd + pgd_index(addr), addr); pmd[0] = __pmd(pmdval); +#ifndef CONFIG_ARM_LPAE pmd[1] = __pmd(pmdval + (1 << (PMD_SHIFT - 1))); +#endif flush_pmd_entry(pmd); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists