diff options
Diffstat (limited to 'arch/um/include')
-rw-r--r-- | arch/um/include/asm/archrandom.h | 25 | ||||
-rw-r--r-- | arch/um/include/asm/common.lds.S | 2 | ||||
-rw-r--r-- | arch/um/include/asm/kasan.h | 37 | ||||
-rw-r--r-- | arch/um/include/asm/pci.h | 24 | ||||
-rw-r--r-- | arch/um/include/asm/pgtable.h | 17 | ||||
-rw-r--r-- | arch/um/include/asm/processor-generic.h | 5 | ||||
-rw-r--r-- | arch/um/include/asm/xor.h | 2 | ||||
-rw-r--r-- | arch/um/include/shared/os.h | 7 | ||||
-rw-r--r-- | arch/um/include/shared/user.h | 3 |
9 files changed, 76 insertions, 46 deletions
diff --git a/arch/um/include/asm/archrandom.h b/arch/um/include/asm/archrandom.h new file mode 100644 index 000000000000..24e16c979c51 --- /dev/null +++ b/arch/um/include/asm/archrandom.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_UM_ARCHRANDOM_H__ +#define __ASM_UM_ARCHRANDOM_H__ + +#include <linux/types.h> + +/* This is from <os.h>, but better not to #include that in a global header here. */ +ssize_t os_getrandom(void *buf, size_t len, unsigned int flags); + +static inline size_t __must_check arch_get_random_longs(unsigned long *v, size_t max_longs) +{ + ssize_t ret; + + ret = os_getrandom(v, max_longs * sizeof(*v), 0); + if (ret < 0) + return 0; + return ret / sizeof(*v); +} + +static inline size_t __must_check arch_get_random_seed_longs(unsigned long *v, size_t max_longs) +{ + return 0; +} + +#endif diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S index eca6c452a41b..fd481ac371de 100644 --- a/arch/um/include/asm/common.lds.S +++ b/arch/um/include/asm/common.lds.S @@ -83,6 +83,8 @@ } .init_array : { __init_array_start = .; + *(.kasan_init) + *(.init_array.*) *(.init_array) __init_array_end = .; } diff --git a/arch/um/include/asm/kasan.h b/arch/um/include/asm/kasan.h new file mode 100644 index 000000000000..0d6547f4ec85 --- /dev/null +++ b/arch/um/include/asm/kasan.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_UM_KASAN_H +#define __ASM_UM_KASAN_H + +#include <linux/init.h> +#include <linux/const.h> + +#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL) + +/* used in kasan_mem_to_shadow to divide by 8 */ +#define KASAN_SHADOW_SCALE_SHIFT 3 + +#ifdef CONFIG_X86_64 +#define KASAN_HOST_USER_SPACE_END_ADDR 0x00007fffffffffffUL +/* KASAN_SHADOW_SIZE is the size of total address space divided by 8 */ +#define KASAN_SHADOW_SIZE ((KASAN_HOST_USER_SPACE_END_ADDR + 1) >> \ + KASAN_SHADOW_SCALE_SHIFT) +#else +#error "KASAN_SHADOW_SIZE is not defined for this sub-architecture" +#endif /* CONFIG_X86_64 */ + +#define KASAN_SHADOW_START (KASAN_SHADOW_OFFSET) +#define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE) + +#ifdef CONFIG_KASAN +void kasan_init(void); +void kasan_map_memory(void *start, unsigned long len); +extern int kasan_um_is_ready; + +#ifdef CONFIG_STATIC_LINK +#define kasan_arch_is_ready() (kasan_um_is_ready) +#endif +#else +static inline void kasan_init(void) { } +#endif /* CONFIG_KASAN */ + +#endif /* __ASM_UM_KASAN_H */ diff --git a/arch/um/include/asm/pci.h b/arch/um/include/asm/pci.h index da13fd5519ef..34fe4921b5fa 100644 --- a/arch/um/include/asm/pci.h +++ b/arch/um/include/asm/pci.h @@ -4,28 +4,8 @@ #include <linux/types.h> #include <asm/io.h> -#define PCIBIOS_MIN_IO 0 -#define PCIBIOS_MIN_MEM 0 - -#define pcibios_assign_all_busses() 1 - -extern int isa_dma_bridge_buggy; - -#ifdef CONFIG_PCI -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - /* no legacy IRQs */ - return -ENODEV; -} -#endif - -#ifdef CONFIG_PCI_DOMAINS -static inline int pci_proc_domain(struct pci_bus *bus) -{ - /* always show the domain in /proc */ - return 1; -} -#endif /* CONFIG_PCI */ +/* Generic PCI */ +#include <asm-generic/pci.h> #ifdef CONFIG_PCI_MSI_IRQ_DOMAIN /* diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h index 167e236d9bb8..66bc3f99d9be 100644 --- a/arch/um/include/asm/pgtable.h +++ b/arch/um/include/asm/pgtable.h @@ -68,23 +68,6 @@ extern unsigned long end_iomem; * Also, write permissions imply read permissions. This is the closest we can * get.. */ -#define __P000 PAGE_NONE -#define __P001 PAGE_READONLY -#define __P010 PAGE_COPY -#define __P011 PAGE_COPY -#define __P100 PAGE_READONLY -#define __P101 PAGE_READONLY -#define __P110 PAGE_COPY -#define __P111 PAGE_COPY - -#define __S000 PAGE_NONE -#define __S001 PAGE_READONLY -#define __S010 PAGE_SHARED -#define __S011 PAGE_SHARED -#define __S100 PAGE_READONLY -#define __S101 PAGE_READONLY -#define __S110 PAGE_SHARED -#define __S111 PAGE_SHARED /* * ZERO_PAGE is a global shared page that is always zero: used diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h index 6a4fe8b4e686..d0fc1862da95 100644 --- a/arch/um/include/asm/processor-generic.h +++ b/arch/um/include/asm/processor-generic.h @@ -59,11 +59,6 @@ static inline void release_thread(struct task_struct *task) { } -static inline void mm_copy_segments(struct mm_struct *from_mm, - struct mm_struct *new_mm) -{ -} - /* * User space process size: 3GB (default). */ diff --git a/arch/um/include/asm/xor.h b/arch/um/include/asm/xor.h index 22b39de73c24..647fae200c5d 100644 --- a/arch/um/include/asm/xor.h +++ b/arch/um/include/asm/xor.h @@ -18,7 +18,7 @@ #undef XOR_SELECT_TEMPLATE /* pick an arbitrary one - measuring isn't possible with inf-cpu */ #define XOR_SELECT_TEMPLATE(x) \ - (time_travel_mode == TT_MODE_INFCPU ? TT_CPU_INF_XOR_DEFAULT : x)) + (time_travel_mode == TT_MODE_INFCPU ? TT_CPU_INF_XOR_DEFAULT : x) #endif #endif diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h index fafde1d5416e..0df646c6651e 100644 --- a/arch/um/include/shared/os.h +++ b/arch/um/include/shared/os.h @@ -11,6 +11,12 @@ #include <irq_user.h> #include <longjmp.h> #include <mm_id.h> +/* This is to get size_t */ +#ifndef __UM_HOST__ +#include <linux/types.h> +#else +#include <sys/types.h> +#endif #define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR)) @@ -243,6 +249,7 @@ extern void stack_protections(unsigned long address); extern int raw(int fd); extern void setup_machinename(char *machine_out); extern void setup_hostinfo(char *buf, int len); +extern ssize_t os_getrandom(void *buf, size_t len, unsigned int flags); extern void os_dump_core(void) __attribute__ ((noreturn)); extern void um_early_printk(const char *s, unsigned int n); extern void os_fix_helper_signals(void); diff --git a/arch/um/include/shared/user.h b/arch/um/include/shared/user.h index dd4badffdeb3..bda66e5a9d4e 100644 --- a/arch/um/include/shared/user.h +++ b/arch/um/include/shared/user.h @@ -16,11 +16,12 @@ */ #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -/* This is to get size_t */ +/* This is to get size_t and NULL */ #ifndef __UM_HOST__ #include <linux/types.h> #else #include <stddef.h> +#include <sys/types.h> #endif extern void panic(const char *fmt, ...) |