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: Tue, 15 Sep 2015 16:41:14 +0100 From: "Suzuki K. Poulose" <suzuki.poulose@....com> To: linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.kernel.org, Catalin.Marinas@....com, Will.Deacon@....com, Mark.Rutland@....com, Marc.Zyngier@....com, kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org, ard.biesheuvel@...aro.org, suzuki.poulose@....com, Mark Rutland <mark.rutland@....com>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will.deacon@....com> Subject: [PATCH 05/15] arm64: Handle 4 level page table for swapper From: "Suzuki K. Poulose" <suzuki.poulose@....com> At the moment, we only support maximum of 3-level page table for swapper. With 48bit VA, 64K has only 3 levels and 4K uses section mapping. Add support for 4-level page table for swapper, needed by 16K pages. Cc: Ard Biesheuvel <ard.biesheuvel@...aro.org> Cc: Mark Rutland <mark.rutland@....com> Cc: Catalin Marinas <catalin.marinas@....com> Cc: Will Deacon <will.deacon@....com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@....com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@...aro.org> Tested-by: Ard Biesheuvel <ard.biesheuvel@...aro.org> --- arch/arm64/kernel/head.S | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 46670bf..01b8e58 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -271,7 +271,10 @@ ENDPROC(preserve_boot_args) */ .macro create_pgd_entry, tbl, virt, tmp1, tmp2 create_table_entry \tbl, \virt, PGDIR_SHIFT, PTRS_PER_PGD, \tmp1, \tmp2 -#if SWAPPER_PGTABLE_LEVELS == 3 +#if SWAPPER_PGTABLE_LEVELS > 3 + create_table_entry \tbl, \virt, PUD_SHIFT, PTRS_PER_PUD, \tmp1, \tmp2 +#endif +#if SWAPPER_PGTABLE_LEVELS > 2 create_table_entry \tbl, \virt, SWAPPER_TABLE_SHIFT, PTRS_PER_PTE, \tmp1, \tmp2 #endif .endm -- 1.7.9.5 -- 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