| 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
| ||
|
Message-ID: <CAJF2gTSCdXtCib2Wv_DQQSJ5srhDwHH6B3xgdrr1-SQECUL1VA@mail.gmail.com> Date: Tue, 27 Feb 2024 08:49:18 +0800 From: Guo Ren <guoren@...nel.org> To: Arnd Bergmann <arnd@...nel.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Vincenzo Frascino <vincenzo.frascino@....com>, Kees Cook <keescook@...omium.org>, Anna-Maria Behnsen <anna-maria@...utronix.de>, Arnd Bergmann <arnd@...db.de>, Matt Turner <mattst88@...il.com>, Vineet Gupta <vgupta@...nel.org>, Russell King <linux@...linux.org.uk>, Catalin Marinas <catalin.marinas@....com>, Brian Cain <bcain@...cinc.com>, Huacai Chen <chenhuacai@...nel.org>, Geert Uytterhoeven <geert@...ux-m68k.org>, Michal Simek <monstr@...str.eu>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, Helge Deller <deller@....de>, Michael Ellerman <mpe@...erman.id.au>, Christophe Leroy <christophe.leroy@...roup.eu>, Palmer Dabbelt <palmer@...belt.com>, John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>, Andreas Larsson <andreas@...sler.com>, Richard Weinberger <richard@....at>, x86@...nel.org, Max Filippov <jcmvbkbc@...il.com>, Andy Lutomirski <luto@...nel.org>, Jan Kiszka <jan.kiszka@...mens.com>, Kieran Bingham <kbingham@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, linux-alpha@...r.kernel.org, linux-snps-arc@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, linux-csky@...r.kernel.org, linux-hexagon@...r.kernel.org, loongarch@...ts.linux.dev, linux-m68k@...ts.linux-m68k.org, linux-mips@...r.kernel.org, linux-openrisc@...r.kernel.org, linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org, linux-sh@...r.kernel.org, sparclinux@...r.kernel.org, linux-um@...ts.infradead.org Subject: Re: [PATCH 3/4] arch: define CONFIG_PAGE_SIZE_*KB on all architectures On Tue, Feb 27, 2024 at 12:15 AM Arnd Bergmann <arnd@...nel.org> wrote: > > From: Arnd Bergmann <arnd@...db.de> > > Most architectures only support a single hardcoded page size. In order > to ensure that each one of these sets the corresponding Kconfig symbols, > change over the PAGE_SHIFT definition to the common one and allow > only the hardware page size to be selected. > > Signed-off-by: Arnd Bergmann <arnd@...db.de> > --- > arch/alpha/Kconfig | 1 + > arch/alpha/include/asm/page.h | 2 +- > arch/arm/Kconfig | 1 + > arch/arm/include/asm/page.h | 2 +- > arch/csky/Kconfig | 1 + > arch/csky/include/asm/page.h | 2 +- > arch/m68k/Kconfig | 3 +++ > arch/m68k/Kconfig.cpu | 2 ++ > arch/m68k/include/asm/page.h | 6 +----- > arch/microblaze/Kconfig | 1 + > arch/microblaze/include/asm/page.h | 2 +- > arch/nios2/Kconfig | 1 + > arch/nios2/include/asm/page.h | 2 +- > arch/openrisc/Kconfig | 1 + > arch/openrisc/include/asm/page.h | 2 +- > arch/riscv/Kconfig | 1 + > arch/riscv/include/asm/page.h | 2 +- > arch/s390/Kconfig | 1 + > arch/s390/include/asm/page.h | 2 +- > arch/sparc/Kconfig | 2 ++ > arch/sparc/include/asm/page_32.h | 2 +- > arch/sparc/include/asm/page_64.h | 3 +-- > arch/um/Kconfig | 1 + > arch/um/include/asm/page.h | 2 +- > arch/x86/Kconfig | 1 + > arch/x86/include/asm/page_types.h | 2 +- > arch/xtensa/Kconfig | 1 + > arch/xtensa/include/asm/page.h | 2 +- > 28 files changed, 32 insertions(+), 19 deletions(-) > > diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig > index d6968d090d49..4f490250d323 100644 > --- a/arch/alpha/Kconfig > +++ b/arch/alpha/Kconfig > @@ -14,6 +14,7 @@ config ALPHA > select PCI_DOMAINS if PCI > select PCI_SYSCALL if PCI > select HAVE_ASM_MODVERSIONS > + select HAVE_PAGE_SIZE_8KB > select HAVE_PCSPKR_PLATFORM > select HAVE_PERF_EVENTS > select NEED_DMA_MAP_STATE > diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h > index 4db1ebc0ed99..70419e6be1a3 100644 > --- a/arch/alpha/include/asm/page.h > +++ b/arch/alpha/include/asm/page.h > @@ -6,7 +6,7 @@ > #include <asm/pal.h> > > /* PAGE_SHIFT determines the page size */ > -#define PAGE_SHIFT 13 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index 0af6709570d1..9d52ba3a8ad1 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -116,6 +116,7 @@ config ARM > select HAVE_MOD_ARCH_SPECIFIC > select HAVE_NMI > select HAVE_OPTPROBES if !THUMB2_KERNEL > + select HAVE_PAGE_SIZE_4KB > select HAVE_PCI if MMU > select HAVE_PERF_EVENTS > select HAVE_PERF_REGS > diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h > index 119aa85d1feb..62af9f7f9e96 100644 > --- a/arch/arm/include/asm/page.h > +++ b/arch/arm/include/asm/page.h > @@ -8,7 +8,7 @@ > #define _ASMARM_PAGE_H > > /* PAGE_SHIFT determines the page size */ > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) > #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) > > diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig > index cf2a6fd7dff8..9c2723ab1c94 100644 > --- a/arch/csky/Kconfig > +++ b/arch/csky/Kconfig > @@ -89,6 +89,7 @@ config CSKY > select HAVE_KPROBES if !CPU_CK610 > select HAVE_KPROBES_ON_FTRACE if !CPU_CK610 > select HAVE_KRETPROBES if !CPU_CK610 > + select HAVE_PAGE_SIZE_4KB > select HAVE_PERF_EVENTS > select HAVE_PERF_REGS > select HAVE_PERF_USER_STACK_DUMP > diff --git a/arch/csky/include/asm/page.h b/arch/csky/include/asm/page.h > index 4a0502e324a6..f70f37402d75 100644 > --- a/arch/csky/include/asm/page.h > +++ b/arch/csky/include/asm/page.h > @@ -10,7 +10,7 @@ > /* > * PAGE_SHIFT determines the page size: 4KB > */ > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT LGTM, thx. Acked-by: Guo Ren <guoren@...nel.org> > #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE - 1)) > #define THREAD_SIZE (PAGE_SIZE * 2) > diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig > index 4b3e93cac723..7b709453d5e7 100644 > --- a/arch/m68k/Kconfig > +++ b/arch/m68k/Kconfig > @@ -84,12 +84,15 @@ config MMU > > config MMU_MOTOROLA > bool > + select HAVE_PAGE_SIZE_4KB > > config MMU_COLDFIRE > + select HAVE_PAGE_SIZE_8KB > bool > > config MMU_SUN3 > bool > + select HAVE_PAGE_SIZE_8KB > depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE > > config ARCH_SUPPORTS_KEXEC > diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu > index 9dcf245c9cbf..c777a129768a 100644 > --- a/arch/m68k/Kconfig.cpu > +++ b/arch/m68k/Kconfig.cpu > @@ -30,6 +30,7 @@ config COLDFIRE > select GENERIC_CSUM > select GPIOLIB > select HAVE_LEGACY_CLK > + select HAVE_PAGE_SIZE_8KB if !MMU > > endchoice > > @@ -45,6 +46,7 @@ config M68000 > select GENERIC_CSUM > select CPU_NO_EFFICIENT_FFS > select HAVE_ARCH_HASH > + select HAVE_PAGE_SIZE_4KB > select LEGACY_TIMER_TICK > help > The Freescale (was Motorola) 68000 CPU is the first generation of > diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h > index a5993ad83ed8..8cfb84b49975 100644 > --- a/arch/m68k/include/asm/page.h > +++ b/arch/m68k/include/asm/page.h > @@ -7,11 +7,7 @@ > #include <asm/page_offset.h> > > /* PAGE_SHIFT determines the page size */ > -#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE) > -#define PAGE_SHIFT 13 > -#else > -#define PAGE_SHIFT 12 > -#endif > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > #define PAGE_OFFSET (PAGE_OFFSET_RAW) > diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig > index 211f338d6235..f18ec02ddeb2 100644 > --- a/arch/microblaze/Kconfig > +++ b/arch/microblaze/Kconfig > @@ -31,6 +31,7 @@ config MICROBLAZE > select HAVE_FTRACE_MCOUNT_RECORD > select HAVE_FUNCTION_GRAPH_TRACER > select HAVE_FUNCTION_TRACER > + select HAVE_PAGE_SIZE_4KB > select HAVE_PCI > select IRQ_DOMAIN > select XILINX_INTC > diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h > index 86a4ce07c192..8810f4f1c3b0 100644 > --- a/arch/microblaze/include/asm/page.h > +++ b/arch/microblaze/include/asm/page.h > @@ -20,7 +20,7 @@ > #ifdef __KERNEL__ > > /* PAGE_SHIFT determines the page size */ > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig > index 58d9565dc2c7..79d3039b29f1 100644 > --- a/arch/nios2/Kconfig > +++ b/arch/nios2/Kconfig > @@ -15,6 +15,7 @@ config NIOS2 > select GENERIC_IRQ_SHOW > select HAVE_ARCH_TRACEHOOK > select HAVE_ARCH_KGDB > + select HAVE_PAGE_SIZE_4KB > select IRQ_DOMAIN > select LOCK_MM_AND_FIND_VMA > select MODULES_USE_ELF_RELA > diff --git a/arch/nios2/include/asm/page.h b/arch/nios2/include/asm/page.h > index 0ae7d9ce369b..0722f88e63cc 100644 > --- a/arch/nios2/include/asm/page.h > +++ b/arch/nios2/include/asm/page.h > @@ -21,7 +21,7 @@ > /* > * PAGE_SHIFT determines the page size > */ > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE - 1)) > > diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig > index fd9bb76a610b..3586cda55bde 100644 > --- a/arch/openrisc/Kconfig > +++ b/arch/openrisc/Kconfig > @@ -25,6 +25,7 @@ config OPENRISC > select GENERIC_CPU_DEVICES > select HAVE_PCI > select HAVE_UID16 > + select HAVE_PAGE_SIZE_8KB > select GENERIC_ATOMIC64 > select GENERIC_CLOCKEVENTS_BROADCAST > select GENERIC_SMP_IDLE_THREAD > diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h > index 44fc1fd56717..7925ce09ab5a 100644 > --- a/arch/openrisc/include/asm/page.h > +++ b/arch/openrisc/include/asm/page.h > @@ -18,7 +18,7 @@ > > /* PAGE_SHIFT determines the page size */ > > -#define PAGE_SHIFT 13 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #ifdef __ASSEMBLY__ > #define PAGE_SIZE (1 << PAGE_SHIFT) > #else > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > index bffbd869a068..792a337548f6 100644 > --- a/arch/riscv/Kconfig > +++ b/arch/riscv/Kconfig > @@ -136,6 +136,7 @@ config RISCV > select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if !LD_IS_LLD > select HAVE_MOVE_PMD > select HAVE_MOVE_PUD > + select HAVE_PAGE_SIZE_4KB > select HAVE_PCI > select HAVE_PERF_EVENTS > select HAVE_PERF_REGS > diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h > index 57e887bfa34c..2947423b5082 100644 > --- a/arch/riscv/include/asm/page.h > +++ b/arch/riscv/include/asm/page.h > @@ -12,7 +12,7 @@ > #include <linux/pfn.h> > #include <linux/const.h> > > -#define PAGE_SHIFT (12) > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE - 1)) > > diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig > index fe565f3a3a91..b61c74c10050 100644 > --- a/arch/s390/Kconfig > +++ b/arch/s390/Kconfig > @@ -199,6 +199,7 @@ config S390 > select HAVE_MOD_ARCH_SPECIFIC > select HAVE_NMI > select HAVE_NOP_MCOUNT > + select HAVE_PAGE_SIZE_4KB > select HAVE_PCI > select HAVE_PERF_EVENTS > select HAVE_PERF_REGS > diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h > index 73b9c3bf377f..ded9548d11d9 100644 > --- a/arch/s390/include/asm/page.h > +++ b/arch/s390/include/asm/page.h > @@ -11,7 +11,7 @@ > #include <linux/const.h> > #include <asm/types.h> > > -#define _PAGE_SHIFT 12 > +#define _PAGE_SHIFT CONFIG_PAGE_SHIFT > #define _PAGE_SIZE (_AC(1, UL) << _PAGE_SHIFT) > #define _PAGE_MASK (~(_PAGE_SIZE - 1)) > > diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig > index 204c43cb3d43..7e6bc6fff76b 100644 > --- a/arch/sparc/Kconfig > +++ b/arch/sparc/Kconfig > @@ -58,6 +58,7 @@ config SPARC32 > select DMA_DIRECT_REMAP > select GENERIC_ATOMIC64 > select HAVE_UID16 > + select HAVE_PAGE_SIZE_4KB > select LOCK_MM_AND_FIND_VMA > select OLD_SIGACTION > select ZONE_DMA > @@ -75,6 +76,7 @@ config SPARC64 > select HAVE_ARCH_TRANSPARENT_HUGEPAGE > select HAVE_DYNAMIC_FTRACE > select HAVE_FTRACE_MCOUNT_RECORD > + select HAVE_PAGE_SIZE_8KB > select HAVE_SYSCALL_TRACEPOINTS > select HAVE_CONTEXT_TRACKING_USER > select HAVE_TIF_NOHZ > diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h > index 6be6f683f98f..9977c77374cd 100644 > --- a/arch/sparc/include/asm/page_32.h > +++ b/arch/sparc/include/asm/page_32.h > @@ -11,7 +11,7 @@ > > #include <linux/const.h> > > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h > index 254dffd85fb1..e9bd24821c93 100644 > --- a/arch/sparc/include/asm/page_64.h > +++ b/arch/sparc/include/asm/page_64.h > @@ -4,8 +4,7 @@ > > #include <linux/const.h> > > -#define PAGE_SHIFT 13 > - > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > diff --git a/arch/um/Kconfig b/arch/um/Kconfig > index b5e179360534..93a5a8999b07 100644 > --- a/arch/um/Kconfig > +++ b/arch/um/Kconfig > @@ -20,6 +20,7 @@ config UML > select HAVE_UID16 > select HAVE_DEBUG_KMEMLEAK > select HAVE_DEBUG_BUGVERBOSE > + select HAVE_PAGE_SIZE_4KB > select NO_DMA if !UML_DMA_EMULATION > select OF_EARLY_FLATTREE if OF > select GENERIC_IRQ_SHOW > diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h > index 84866127d074..9ef9a8aedfa6 100644 > --- a/arch/um/include/asm/page.h > +++ b/arch/um/include/asm/page.h > @@ -10,7 +10,7 @@ > #include <linux/const.h> > > /* PAGE_SHIFT determines the page size */ > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 5edec175b9bf..ba57eb362ec8 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -255,6 +255,7 @@ config X86 > select HAVE_NOINSTR_VALIDATION if HAVE_OBJTOOL > select HAVE_OBJTOOL if X86_64 > select HAVE_OPTPROBES > + select HAVE_PAGE_SIZE_4KB > select HAVE_PCSPKR_PLATFORM > select HAVE_PERF_EVENTS > select HAVE_PERF_EVENTS_NMI > diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h > index 86bd4311daf8..9da9c8a2f1df 100644 > --- a/arch/x86/include/asm/page_types.h > +++ b/arch/x86/include/asm/page_types.h > @@ -7,7 +7,7 @@ > #include <linux/mem_encrypt.h> > > /* PAGE_SHIFT determines the page size */ > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig > index 6f248d87e496..87ec35b3363b 100644 > --- a/arch/xtensa/Kconfig > +++ b/arch/xtensa/Kconfig > @@ -44,6 +44,7 @@ config XTENSA > select HAVE_GCC_PLUGINS if GCC_VERSION >= 120000 > select HAVE_HW_BREAKPOINT if PERF_EVENTS > select HAVE_IRQ_TIME_ACCOUNTING > + select HAVE_PAGE_SIZE_4KB > select HAVE_PCI > select HAVE_PERF_EVENTS > select HAVE_STACKPROTECTOR > diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h > index a77d04972eb9..4db56ef052d2 100644 > --- a/arch/xtensa/include/asm/page.h > +++ b/arch/xtensa/include/asm/page.h > @@ -22,7 +22,7 @@ > * PAGE_SHIFT determines the page size > */ > > -#define PAGE_SHIFT 12 > +#define PAGE_SHIFT CONFIG_PAGE_SHIFT > #define PAGE_SIZE (__XTENSA_UL_CONST(1) << PAGE_SHIFT) > #define PAGE_MASK (~(PAGE_SIZE-1)) > > -- > 2.39.2 > -- Best Regards Guo Ren
Powered by blists - more mailing lists