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-rw-r--r--include/asm-um/desc.h12
-rw-r--r--include/asm-um/host_ldt-i386.h34
-rw-r--r--include/asm-um/host_ldt-x86_64.h (renamed from include/asm-um/ldt-x86_64.h)39
-rw-r--r--include/asm-um/ldt-i386.h69
-rw-r--r--include/asm-um/ldt.h41
-rw-r--r--include/asm-um/processor-i386.h35
-rw-r--r--include/asm-um/processor-x86_64.h9
-rw-r--r--include/asm-um/ptrace-generic.h16
-rw-r--r--include/asm-um/ptrace-i386.h44
-rw-r--r--include/asm-um/ptrace-x86_64.h35
-rw-r--r--include/asm-um/segment.h6
-rw-r--r--include/asm-um/thread_info.h16
-rw-r--r--include/asm-um/uaccess.h2
13 files changed, 204 insertions, 154 deletions
diff --git a/include/asm-um/desc.h b/include/asm-um/desc.h
index ac1d2a20d178..4ec34a51b62c 100644
--- a/include/asm-um/desc.h
+++ b/include/asm-um/desc.h
@@ -1,6 +1,16 @@
1#ifndef __UM_DESC_H 1#ifndef __UM_DESC_H
2#define __UM_DESC_H 2#define __UM_DESC_H
3 3
4#include "asm/arch/desc.h" 4/* Taken from asm-i386/desc.h, it's the only thing we need. The rest wouldn't
5 * compile, and has never been used. */
6#define LDT_empty(info) (\
7 (info)->base_addr == 0 && \
8 (info)->limit == 0 && \
9 (info)->contents == 0 && \
10 (info)->read_exec_only == 1 && \
11 (info)->seg_32bit == 0 && \
12 (info)->limit_in_pages == 0 && \
13 (info)->seg_not_present == 1 && \
14 (info)->useable == 0 )
5 15
6#endif 16#endif
diff --git a/include/asm-um/host_ldt-i386.h b/include/asm-um/host_ldt-i386.h
new file mode 100644
index 000000000000..b27cb0a9dd30
--- /dev/null
+++ b/include/asm-um/host_ldt-i386.h
@@ -0,0 +1,34 @@
1#ifndef __ASM_HOST_LDT_I386_H
2#define __ASM_HOST_LDT_I386_H
3
4#include "asm/arch/ldt.h"
5
6/*
7 * macros stolen from include/asm-i386/desc.h
8 */
9#define LDT_entry_a(info) \
10 ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
11
12#define LDT_entry_b(info) \
13 (((info)->base_addr & 0xff000000) | \
14 (((info)->base_addr & 0x00ff0000) >> 16) | \
15 ((info)->limit & 0xf0000) | \
16 (((info)->read_exec_only ^ 1) << 9) | \
17 ((info)->contents << 10) | \
18 (((info)->seg_not_present ^ 1) << 15) | \
19 ((info)->seg_32bit << 22) | \
20 ((info)->limit_in_pages << 23) | \
21 ((info)->useable << 20) | \
22 0x7000)
23
24#define LDT_empty(info) (\
25 (info)->base_addr == 0 && \
26 (info)->limit == 0 && \
27 (info)->contents == 0 && \
28 (info)->read_exec_only == 1 && \
29 (info)->seg_32bit == 0 && \
30 (info)->limit_in_pages == 0 && \
31 (info)->seg_not_present == 1 && \
32 (info)->useable == 0 )
33
34#endif
diff --git a/include/asm-um/ldt-x86_64.h b/include/asm-um/host_ldt-x86_64.h
index 96b35aada79a..74a63f7d9a90 100644
--- a/include/asm-um/ldt-x86_64.h
+++ b/include/asm-um/host_ldt-x86_64.h
@@ -1,43 +1,8 @@
1/* 1#ifndef __ASM_HOST_LDT_X86_64_H
2 * Copyright (C) 2004 Fujitsu Siemens Computers GmbH 2#define __ASM_HOST_LDT_X86_64_H
3 * Licensed under the GPL
4 *
5 * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
6 */
7 3
8#ifndef __ASM_LDT_X86_64_H
9#define __ASM_LDT_X86_64_H
10
11#include "asm/semaphore.h"
12#include "asm/arch/ldt.h" 4#include "asm/arch/ldt.h"
13 5
14struct mmu_context_skas;
15extern void ldt_host_info(void);
16extern long init_new_ldt(struct mmu_context_skas * to_mm,
17 struct mmu_context_skas * from_mm);
18extern void free_ldt(struct mmu_context_skas * mm);
19
20#define LDT_PAGES_MAX \
21 ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
22#define LDT_ENTRIES_PER_PAGE \
23 (PAGE_SIZE/LDT_ENTRY_SIZE)
24#define LDT_DIRECT_ENTRIES \
25 ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
26
27struct ldt_entry {
28 __u32 a;
29 __u32 b;
30};
31
32typedef struct uml_ldt {
33 int entry_count;
34 struct semaphore semaphore;
35 union {
36 struct ldt_entry * pages[LDT_PAGES_MAX];
37 struct ldt_entry entries[LDT_DIRECT_ENTRIES];
38 } u;
39} uml_ldt_t;
40
41/* 6/*
42 * macros stolen from include/asm-x86_64/desc.h 7 * macros stolen from include/asm-x86_64/desc.h
43 */ 8 */
diff --git a/include/asm-um/ldt-i386.h b/include/asm-um/ldt-i386.h
deleted file mode 100644
index 175722a91164..000000000000
--- a/include/asm-um/ldt-i386.h
+++ /dev/null
@@ -1,69 +0,0 @@
1/*
2 * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
3 * Licensed under the GPL
4 *
5 * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
6 */
7
8#ifndef __ASM_LDT_I386_H
9#define __ASM_LDT_I386_H
10
11#include "asm/semaphore.h"
12#include "asm/arch/ldt.h"
13
14struct mmu_context_skas;
15extern void ldt_host_info(void);
16extern long init_new_ldt(struct mmu_context_skas * to_mm,
17 struct mmu_context_skas * from_mm);
18extern void free_ldt(struct mmu_context_skas * mm);
19
20#define LDT_PAGES_MAX \
21 ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
22#define LDT_ENTRIES_PER_PAGE \
23 (PAGE_SIZE/LDT_ENTRY_SIZE)
24#define LDT_DIRECT_ENTRIES \
25 ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
26
27struct ldt_entry {
28 __u32 a;
29 __u32 b;
30};
31
32typedef struct uml_ldt {
33 int entry_count;
34 struct semaphore semaphore;
35 union {
36 struct ldt_entry * pages[LDT_PAGES_MAX];
37 struct ldt_entry entries[LDT_DIRECT_ENTRIES];
38 } u;
39} uml_ldt_t;
40
41/*
42 * macros stolen from include/asm-i386/desc.h
43 */
44#define LDT_entry_a(info) \
45 ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
46
47#define LDT_entry_b(info) \
48 (((info)->base_addr & 0xff000000) | \
49 (((info)->base_addr & 0x00ff0000) >> 16) | \
50 ((info)->limit & 0xf0000) | \
51 (((info)->read_exec_only ^ 1) << 9) | \
52 ((info)->contents << 10) | \
53 (((info)->seg_not_present ^ 1) << 15) | \
54 ((info)->seg_32bit << 22) | \
55 ((info)->limit_in_pages << 23) | \
56 ((info)->useable << 20) | \
57 0x7000)
58
59#define LDT_empty(info) (\
60 (info)->base_addr == 0 && \
61 (info)->limit == 0 && \
62 (info)->contents == 0 && \
63 (info)->read_exec_only == 1 && \
64 (info)->seg_32bit == 0 && \
65 (info)->limit_in_pages == 0 && \
66 (info)->seg_not_present == 1 && \
67 (info)->useable == 0 )
68
69#endif
diff --git a/include/asm-um/ldt.h b/include/asm-um/ldt.h
new file mode 100644
index 000000000000..96f82a456ce6
--- /dev/null
+++ b/include/asm-um/ldt.h
@@ -0,0 +1,41 @@
1/*
2 * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
3 * Licensed under the GPL
4 *
5 * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
6 */
7
8#ifndef __ASM_LDT_H
9#define __ASM_LDT_H
10
11#include "asm/semaphore.h"
12#include "asm/host_ldt.h"
13
14struct mmu_context_skas;
15extern void ldt_host_info(void);
16extern long init_new_ldt(struct mmu_context_skas * to_mm,
17 struct mmu_context_skas * from_mm);
18extern void free_ldt(struct mmu_context_skas * mm);
19
20#define LDT_PAGES_MAX \
21 ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
22#define LDT_ENTRIES_PER_PAGE \
23 (PAGE_SIZE/LDT_ENTRY_SIZE)
24#define LDT_DIRECT_ENTRIES \
25 ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
26
27struct ldt_entry {
28 __u32 a;
29 __u32 b;
30};
31
32typedef struct uml_ldt {
33 int entry_count;
34 struct semaphore semaphore;
35 union {
36 struct ldt_entry * pages[LDT_PAGES_MAX];
37 struct ldt_entry entries[LDT_DIRECT_ENTRIES];
38 } u;
39} uml_ldt_t;
40
41#endif
diff --git a/include/asm-um/processor-i386.h b/include/asm-um/processor-i386.h
index 4108a579eb92..595f1c3e1e40 100644
--- a/include/asm-um/processor-i386.h
+++ b/include/asm-um/processor-i386.h
@@ -1,4 +1,4 @@
1/* 1/*
2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) 2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL 3 * Licensed under the GPL
4 */ 4 */
@@ -6,21 +6,48 @@
6#ifndef __UM_PROCESSOR_I386_H 6#ifndef __UM_PROCESSOR_I386_H
7#define __UM_PROCESSOR_I386_H 7#define __UM_PROCESSOR_I386_H
8 8
9#include "linux/string.h"
10#include "asm/host_ldt.h"
11#include "asm/segment.h"
12
9extern int host_has_xmm; 13extern int host_has_xmm;
10extern int host_has_cmov; 14extern int host_has_cmov;
11 15
12/* include faultinfo structure */ 16/* include faultinfo structure */
13#include "sysdep/faultinfo.h" 17#include "sysdep/faultinfo.h"
14 18
19struct uml_tls_struct {
20 struct user_desc tls;
21 unsigned flushed:1;
22 unsigned present:1;
23};
24
15struct arch_thread { 25struct arch_thread {
26 struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
16 unsigned long debugregs[8]; 27 unsigned long debugregs[8];
17 int debugregs_seq; 28 int debugregs_seq;
18 struct faultinfo faultinfo; 29 struct faultinfo faultinfo;
19}; 30};
20 31
21#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \ 32#define INIT_ARCH_THREAD { \
22 .debugregs_seq = 0, \ 33 .tls_array = { [ 0 ... GDT_ENTRY_TLS_ENTRIES - 1 ] = \
23 .faultinfo = { 0, 0, 0 } } 34 { .present = 0, .flushed = 0 } }, \
35 .debugregs = { [ 0 ... 7 ] = 0 }, \
36 .debugregs_seq = 0, \
37 .faultinfo = { 0, 0, 0 } \
38}
39
40static inline void arch_flush_thread(struct arch_thread *thread)
41{
42 /* Clear any TLS still hanging */
43 memset(&thread->tls_array, 0, sizeof(thread->tls_array));
44}
45
46static inline void arch_copy_thread(struct arch_thread *from,
47 struct arch_thread *to)
48{
49 memcpy(&to->tls_array, &from->tls_array, sizeof(from->tls_array));
50}
24 51
25#include "asm/arch/user.h" 52#include "asm/arch/user.h"
26 53
diff --git a/include/asm-um/processor-x86_64.h b/include/asm-um/processor-x86_64.h
index e1e1255a1d36..10609af376c0 100644
--- a/include/asm-um/processor-x86_64.h
+++ b/include/asm-um/processor-x86_64.h
@@ -28,6 +28,15 @@ extern inline void rep_nop(void)
28 .debugregs_seq = 0, \ 28 .debugregs_seq = 0, \
29 .faultinfo = { 0, 0, 0 } } 29 .faultinfo = { 0, 0, 0 } }
30 30
31static inline void arch_flush_thread(struct arch_thread *thread)
32{
33}
34
35static inline void arch_copy_thread(struct arch_thread *from,
36 struct arch_thread *to)
37{
38}
39
31#include "asm/arch/user.h" 40#include "asm/arch/user.h"
32 41
33#define current_text_addr() \ 42#define current_text_addr() \
diff --git a/include/asm-um/ptrace-generic.h b/include/asm-um/ptrace-generic.h
index 46599ac44037..503484305e67 100644
--- a/include/asm-um/ptrace-generic.h
+++ b/include/asm-um/ptrace-generic.h
@@ -28,7 +28,7 @@ struct pt_regs {
28 union uml_pt_regs regs; 28 union uml_pt_regs regs;
29}; 29};
30 30
31#define EMPTY_REGS { regs : EMPTY_UML_PT_REGS } 31#define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS }
32 32
33#define PT_REGS_IP(r) UPT_IP(&(r)->regs) 33#define PT_REGS_IP(r) UPT_IP(&(r)->regs)
34#define PT_REGS_SP(r) UPT_SP(&(r)->regs) 34#define PT_REGS_SP(r) UPT_SP(&(r)->regs)
@@ -60,17 +60,9 @@ extern void show_regs(struct pt_regs *regs);
60extern void send_sigtrap(struct task_struct *tsk, union uml_pt_regs *regs, 60extern void send_sigtrap(struct task_struct *tsk, union uml_pt_regs *regs,
61 int error_code); 61 int error_code);
62 62
63#endif 63extern int arch_copy_tls(struct task_struct *new);
64extern void clear_flushed_tls(struct task_struct *task);
64 65
65#endif 66#endif
66 67
67/* 68#endif
68 * Overrides for Emacs so that we follow Linus's tabbing style.
69 * Emacs will notice this stuff at the end of the file and automatically
70 * adjust the settings for this buffer only. This must remain at the end
71 * of the file.
72 * ---------------------------------------------------------------------------
73 * Local variables:
74 * c-file-style: "linux"
75 * End:
76 */
diff --git a/include/asm-um/ptrace-i386.h b/include/asm-um/ptrace-i386.h
index fe882b9d917e..6e2528bb0083 100644
--- a/include/asm-um/ptrace-i386.h
+++ b/include/asm-um/ptrace-i386.h
@@ -8,8 +8,11 @@
8 8
9#define HOST_AUDIT_ARCH AUDIT_ARCH_I386 9#define HOST_AUDIT_ARCH AUDIT_ARCH_I386
10 10
11#include "linux/compiler.h"
11#include "sysdep/ptrace.h" 12#include "sysdep/ptrace.h"
12#include "asm/ptrace-generic.h" 13#include "asm/ptrace-generic.h"
14#include "asm/host_ldt.h"
15#include "choose-mode.h"
13 16
14#define PT_REGS_EAX(r) UPT_EAX(&(r)->regs) 17#define PT_REGS_EAX(r) UPT_EAX(&(r)->regs)
15#define PT_REGS_EBX(r) UPT_EBX(&(r)->regs) 18#define PT_REGS_EBX(r) UPT_EBX(&(r)->regs)
@@ -38,15 +41,34 @@
38 41
39#define user_mode(r) UPT_IS_USER(&(r)->regs) 42#define user_mode(r) UPT_IS_USER(&(r)->regs)
40 43
41#endif 44extern int ptrace_get_thread_area(struct task_struct *child, int idx,
45 struct user_desc __user *user_desc);
42 46
43/* 47extern int ptrace_set_thread_area(struct task_struct *child, int idx,
44 * Overrides for Emacs so that we follow Linus's tabbing style. 48 struct user_desc __user *user_desc);
45 * Emacs will notice this stuff at the end of the file and automatically 49
46 * adjust the settings for this buffer only. This must remain at the end 50extern int do_set_thread_area_skas(struct user_desc *info);
47 * of the file. 51extern int do_get_thread_area_skas(struct user_desc *info);
48 * --------------------------------------------------------------------------- 52
49 * Local variables: 53extern int do_set_thread_area_tt(struct user_desc *info);
50 * c-file-style: "linux" 54extern int do_get_thread_area_tt(struct user_desc *info);
51 * End: 55
52 */ 56extern int arch_switch_tls_skas(struct task_struct *from, struct task_struct *to);
57extern int arch_switch_tls_tt(struct task_struct *from, struct task_struct *to);
58
59extern void arch_switch_to_tt(struct task_struct *from, struct task_struct *to);
60extern void arch_switch_to_skas(struct task_struct *from, struct task_struct *to);
61
62static inline int do_get_thread_area(struct user_desc *info)
63{
64 return CHOOSE_MODE_PROC(do_get_thread_area_tt, do_get_thread_area_skas, info);
65}
66
67static inline int do_set_thread_area(struct user_desc *info)
68{
69 return CHOOSE_MODE_PROC(do_set_thread_area_tt, do_set_thread_area_skas, info);
70}
71
72struct task_struct;
73
74#endif
diff --git a/include/asm-um/ptrace-x86_64.h b/include/asm-um/ptrace-x86_64.h
index be51219a8ffe..c894e68b1f96 100644
--- a/include/asm-um/ptrace-x86_64.h
+++ b/include/asm-um/ptrace-x86_64.h
@@ -8,6 +8,8 @@
8#define __UM_PTRACE_X86_64_H 8#define __UM_PTRACE_X86_64_H
9 9
10#include "linux/compiler.h" 10#include "linux/compiler.h"
11#include "asm/errno.h"
12#include "asm/host_ldt.h"
11 13
12#define signal_fault signal_fault_x86_64 14#define signal_fault signal_fault_x86_64
13#define __FRAME_OFFSETS /* Needed to get the R* macros */ 15#define __FRAME_OFFSETS /* Needed to get the R* macros */
@@ -63,15 +65,26 @@ void signal_fault(struct pt_regs_subarch *regs, void *frame, char *where);
63 65
64#define profile_pc(regs) PT_REGS_IP(regs) 66#define profile_pc(regs) PT_REGS_IP(regs)
65 67
66#endif 68static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
69 struct user_desc __user *user_desc)
70{
71 return -ENOSYS;
72}
67 73
68/* 74static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
69 * Overrides for Emacs so that we follow Linus's tabbing style. 75 struct user_desc __user *user_desc)
70 * Emacs will notice this stuff at the end of the file and automatically 76{
71 * adjust the settings for this buffer only. This must remain at the end 77 return -ENOSYS;
72 * of the file. 78}
73 * --------------------------------------------------------------------------- 79
74 * Local variables: 80static inline void arch_switch_to_tt(struct task_struct *from,
75 * c-file-style: "linux" 81 struct task_struct *to)
76 * End: 82{
77 */ 83}
84
85static inline void arch_switch_to_skas(struct task_struct *from,
86 struct task_struct *to)
87{
88}
89
90#endif
diff --git a/include/asm-um/segment.h b/include/asm-um/segment.h
index 55e40301f625..45183fcd10b6 100644
--- a/include/asm-um/segment.h
+++ b/include/asm-um/segment.h
@@ -1,4 +1,10 @@
1#ifndef __UM_SEGMENT_H 1#ifndef __UM_SEGMENT_H
2#define __UM_SEGMENT_H 2#define __UM_SEGMENT_H
3 3
4extern int host_gdt_entry_tls_min;
5
6#define GDT_ENTRY_TLS_ENTRIES 3
7#define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min
8#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
9
4#endif 10#endif
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
index 17b6b07c4332..f166b9837c6a 100644
--- a/include/asm-um/thread_info.h
+++ b/include/asm-um/thread_info.h
@@ -27,14 +27,14 @@ struct thread_info {
27 27
28#define INIT_THREAD_INFO(tsk) \ 28#define INIT_THREAD_INFO(tsk) \
29{ \ 29{ \
30 task: &tsk, \ 30 .task = &tsk, \
31 exec_domain: &default_exec_domain, \ 31 .exec_domain = &default_exec_domain, \
32 flags: 0, \ 32 .flags = 0, \
33 cpu: 0, \ 33 .cpu = 0, \
34 preempt_count: 1, \ 34 .preempt_count = 1, \
35 addr_limit: KERNEL_DS, \ 35 .addr_limit = KERNEL_DS, \
36 restart_block: { \ 36 .restart_block = { \
37 fn: do_no_restart_syscall, \ 37 .fn = do_no_restart_syscall, \
38 }, \ 38 }, \
39} 39}
40 40
diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h
index 4e460d6f5ac8..bea5a015f667 100644
--- a/include/asm-um/uaccess.h
+++ b/include/asm-um/uaccess.h
@@ -57,7 +57,7 @@
57({ \ 57({ \
58 const __typeof__((*(ptr))) __user *private_ptr = (ptr); \ 58 const __typeof__((*(ptr))) __user *private_ptr = (ptr); \
59 (access_ok(VERIFY_READ, private_ptr, sizeof(*private_ptr)) ? \ 59 (access_ok(VERIFY_READ, private_ptr, sizeof(*private_ptr)) ? \
60 __get_user(x, private_ptr) : ((x) = 0, -EFAULT)); \ 60 __get_user(x, private_ptr) : ((x) = (__typeof__(*ptr))0, -EFAULT)); \
61}) 61})
62 62
63#define __put_user(x, ptr) \ 63#define __put_user(x, ptr) \
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 00:08:16 -0500