diff options
| -rw-r--r-- | include/asm-x86/Kbuild | 2 | ||||
| -rw-r--r-- | include/asm-x86/debugreg.h | 79 | ||||
| -rw-r--r-- | include/asm-x86/debugreg_32.h | 64 | ||||
| -rw-r--r-- | include/asm-x86/debugreg_64.h | 65 |
4 files changed, 68 insertions, 142 deletions
diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild index 24bbde8c1b72..559830ece755 100644 --- a/include/asm-x86/Kbuild +++ b/include/asm-x86/Kbuild | |||
| @@ -1,8 +1,6 @@ | |||
| 1 | include include/asm-generic/Kbuild.asm | 1 | include include/asm-generic/Kbuild.asm |
| 2 | 2 | ||
| 3 | header-y += boot.h | 3 | header-y += boot.h |
| 4 | header-y += debugreg_32.h | ||
| 5 | header-y += debugreg_64.h | ||
| 6 | header-y += debugreg.h | 4 | header-y += debugreg.h |
| 7 | header-y += ldt.h | 5 | header-y += ldt.h |
| 8 | header-y += msr-index.h | 6 | header-y += msr-index.h |
diff --git a/include/asm-x86/debugreg.h b/include/asm-x86/debugreg.h index b6ce7e4fa002..c6344d572b03 100644 --- a/include/asm-x86/debugreg.h +++ b/include/asm-x86/debugreg.h | |||
| @@ -1,13 +1,70 @@ | |||
| 1 | #ifdef __KERNEL__ | 1 | #ifndef _ASM_X86_DEBUGREG_H |
| 2 | # ifdef CONFIG_X86_32 | 2 | #define _ASM_X86_DEBUGREG_H |
| 3 | # include "debugreg_32.h" | 3 | |
| 4 | # else | 4 | |
| 5 | # include "debugreg_64.h" | 5 | /* Indicate the register numbers for a number of the specific |
| 6 | # endif | 6 | debug registers. Registers 0-3 contain the addresses we wish to trap on */ |
| 7 | #define DR_FIRSTADDR 0 /* u_debugreg[DR_FIRSTADDR] */ | ||
| 8 | #define DR_LASTADDR 3 /* u_debugreg[DR_LASTADDR] */ | ||
| 9 | |||
| 10 | #define DR_STATUS 6 /* u_debugreg[DR_STATUS] */ | ||
| 11 | #define DR_CONTROL 7 /* u_debugreg[DR_CONTROL] */ | ||
| 12 | |||
| 13 | /* Define a few things for the status register. We can use this to determine | ||
| 14 | which debugging register was responsible for the trap. The other bits | ||
| 15 | are either reserved or not of interest to us. */ | ||
| 16 | |||
| 17 | #define DR_TRAP0 (0x1) /* db0 */ | ||
| 18 | #define DR_TRAP1 (0x2) /* db1 */ | ||
| 19 | #define DR_TRAP2 (0x4) /* db2 */ | ||
| 20 | #define DR_TRAP3 (0x8) /* db3 */ | ||
| 21 | |||
| 22 | #define DR_STEP (0x4000) /* single-step */ | ||
| 23 | #define DR_SWITCH (0x8000) /* task switch */ | ||
| 24 | |||
| 25 | /* Now define a bunch of things for manipulating the control register. | ||
| 26 | The top two bytes of the control register consist of 4 fields of 4 | ||
| 27 | bits - each field corresponds to one of the four debug registers, | ||
| 28 | and indicates what types of access we trap on, and how large the data | ||
| 29 | field is that we are looking at */ | ||
| 30 | |||
| 31 | #define DR_CONTROL_SHIFT 16 /* Skip this many bits in ctl register */ | ||
| 32 | #define DR_CONTROL_SIZE 4 /* 4 control bits per register */ | ||
| 33 | |||
| 34 | #define DR_RW_EXECUTE (0x0) /* Settings for the access types to trap on */ | ||
| 35 | #define DR_RW_WRITE (0x1) | ||
| 36 | #define DR_RW_READ (0x3) | ||
| 37 | |||
| 38 | #define DR_LEN_1 (0x0) /* Settings for data length to trap on */ | ||
| 39 | #define DR_LEN_2 (0x4) | ||
| 40 | #define DR_LEN_4 (0xC) | ||
| 41 | #define DR_LEN_8 (0x8) | ||
| 42 | |||
| 43 | /* The low byte to the control register determine which registers are | ||
| 44 | enabled. There are 4 fields of two bits. One bit is "local", meaning | ||
| 45 | that the processor will reset the bit after a task switch and the other | ||
| 46 | is global meaning that we have to explicitly reset the bit. With linux, | ||
| 47 | you can use either one, since we explicitly zero the register when we enter | ||
| 48 | kernel mode. */ | ||
| 49 | |||
| 50 | #define DR_LOCAL_ENABLE_SHIFT 0 /* Extra shift to the local enable bit */ | ||
| 51 | #define DR_GLOBAL_ENABLE_SHIFT 1 /* Extra shift to the global enable bit */ | ||
| 52 | #define DR_ENABLE_SIZE 2 /* 2 enable bits per register */ | ||
| 53 | |||
| 54 | #define DR_LOCAL_ENABLE_MASK (0x55) /* Set local bits for all 4 regs */ | ||
| 55 | #define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */ | ||
| 56 | |||
| 57 | /* The second byte to the control register has a few special things. | ||
| 58 | We can slow the instruction pipeline for instructions coming via the | ||
| 59 | gdt or the ldt if we want to. I am not sure why this is an advantage */ | ||
| 60 | |||
| 61 | #ifdef __i386__ | ||
| 62 | #define DR_CONTROL_RESERVED (0xFC00) /* Reserved by Intel */ | ||
| 7 | #else | 63 | #else |
| 8 | # ifdef __i386__ | 64 | #define DR_CONTROL_RESERVED (0xFFFFFFFF0000FC00UL) /* Reserved */ |
| 9 | # include "debugreg_32.h" | 65 | #endif |
| 10 | # else | 66 | |
| 11 | # include "debugreg_64.h" | 67 | #define DR_LOCAL_SLOWDOWN (0x100) /* Local slow the pipeline */ |
| 12 | # endif | 68 | #define DR_GLOBAL_SLOWDOWN (0x200) /* Global slow the pipeline */ |
| 69 | |||
| 13 | #endif | 70 | #endif |
diff --git a/include/asm-x86/debugreg_32.h b/include/asm-x86/debugreg_32.h deleted file mode 100644 index f0b2b06ae0f7..000000000000 --- a/include/asm-x86/debugreg_32.h +++ /dev/null | |||
| @@ -1,64 +0,0 @@ | |||
| 1 | #ifndef _I386_DEBUGREG_H | ||
| 2 | #define _I386_DEBUGREG_H | ||
| 3 | |||
| 4 | |||
| 5 | /* Indicate the register numbers for a number of the specific | ||
| 6 | debug registers. Registers 0-3 contain the addresses we wish to trap on */ | ||
| 7 | #define DR_FIRSTADDR 0 /* u_debugreg[DR_FIRSTADDR] */ | ||
| 8 | #define DR_LASTADDR 3 /* u_debugreg[DR_LASTADDR] */ | ||
| 9 | |||
| 10 | #define DR_STATUS 6 /* u_debugreg[DR_STATUS] */ | ||
| 11 | #define DR_CONTROL 7 /* u_debugreg[DR_CONTROL] */ | ||
| 12 | |||
| 13 | /* Define a few things for the status register. We can use this to determine | ||
| 14 | which debugging register was responsible for the trap. The other bits | ||
| 15 | are either reserved or not of interest to us. */ | ||
| 16 | |||
| 17 | #define DR_TRAP0 (0x1) /* db0 */ | ||
| 18 | #define DR_TRAP1 (0x2) /* db1 */ | ||
| 19 | #define DR_TRAP2 (0x4) /* db2 */ | ||
| 20 | #define DR_TRAP3 (0x8) /* db3 */ | ||
| 21 | |||
| 22 | #define DR_STEP (0x4000) /* single-step */ | ||
| 23 | #define DR_SWITCH (0x8000) /* task switch */ | ||
| 24 | |||
| 25 | /* Now define a bunch of things for manipulating the control register. | ||
| 26 | The top two bytes of the control register consist of 4 fields of 4 | ||
| 27 | bits - each field corresponds to one of the four debug registers, | ||
| 28 | and indicates what types of access we trap on, and how large the data | ||
| 29 | field is that we are looking at */ | ||
| 30 | |||
| 31 | #define DR_CONTROL_SHIFT 16 /* Skip this many bits in ctl register */ | ||
| 32 | #define DR_CONTROL_SIZE 4 /* 4 control bits per register */ | ||
| 33 | |||
| 34 | #define DR_RW_EXECUTE (0x0) /* Settings for the access types to trap on */ | ||
| 35 | #define DR_RW_WRITE (0x1) | ||
| 36 | #define DR_RW_READ (0x3) | ||
| 37 | |||
| 38 | #define DR_LEN_1 (0x0) /* Settings for data length to trap on */ | ||
| 39 | #define DR_LEN_2 (0x4) | ||
| 40 | #define DR_LEN_4 (0xC) | ||
| 41 | |||
| 42 | /* The low byte to the control register determine which registers are | ||
| 43 | enabled. There are 4 fields of two bits. One bit is "local", meaning | ||
| 44 | that the processor will reset the bit after a task switch and the other | ||
| 45 | is global meaning that we have to explicitly reset the bit. With linux, | ||
| 46 | you can use either one, since we explicitly zero the register when we enter | ||
| 47 | kernel mode. */ | ||
| 48 | |||
| 49 | #define DR_LOCAL_ENABLE_SHIFT 0 /* Extra shift to the local enable bit */ | ||
| 50 | #define DR_GLOBAL_ENABLE_SHIFT 1 /* Extra shift to the global enable bit */ | ||
| 51 | #define DR_ENABLE_SIZE 2 /* 2 enable bits per register */ | ||
| 52 | |||
| 53 | #define DR_LOCAL_ENABLE_MASK (0x55) /* Set local bits for all 4 regs */ | ||
| 54 | #define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */ | ||
| 55 | |||
| 56 | /* The second byte to the control register has a few special things. | ||
| 57 | We can slow the instruction pipeline for instructions coming via the | ||
| 58 | gdt or the ldt if we want to. I am not sure why this is an advantage */ | ||
| 59 | |||
| 60 | #define DR_CONTROL_RESERVED (0xFC00) /* Reserved by Intel */ | ||
| 61 | #define DR_LOCAL_SLOWDOWN (0x100) /* Local slow the pipeline */ | ||
| 62 | #define DR_GLOBAL_SLOWDOWN (0x200) /* Global slow the pipeline */ | ||
| 63 | |||
| 64 | #endif | ||
diff --git a/include/asm-x86/debugreg_64.h b/include/asm-x86/debugreg_64.h deleted file mode 100644 index bd1aab1d8c4a..000000000000 --- a/include/asm-x86/debugreg_64.h +++ /dev/null | |||
| @@ -1,65 +0,0 @@ | |||
| 1 | #ifndef _X86_64_DEBUGREG_H | ||
| 2 | #define _X86_64_DEBUGREG_H | ||
| 3 | |||
| 4 | |||
| 5 | /* Indicate the register numbers for a number of the specific | ||
| 6 | debug registers. Registers 0-3 contain the addresses we wish to trap on */ | ||
| 7 | #define DR_FIRSTADDR 0 /* u_debugreg[DR_FIRSTADDR] */ | ||
| 8 | #define DR_LASTADDR 3 /* u_debugreg[DR_LASTADDR] */ | ||
| 9 | |||
| 10 | #define DR_STATUS 6 /* u_debugreg[DR_STATUS] */ | ||
| 11 | #define DR_CONTROL 7 /* u_debugreg[DR_CONTROL] */ | ||
| 12 | |||
| 13 | /* Define a few things for the status register. We can use this to determine | ||
| 14 | which debugging register was responsible for the trap. The other bits | ||
| 15 | are either reserved or not of interest to us. */ | ||
| 16 | |||
| 17 | #define DR_TRAP0 (0x1) /* db0 */ | ||
| 18 | #define DR_TRAP1 (0x2) /* db1 */ | ||
| 19 | #define DR_TRAP2 (0x4) /* db2 */ | ||
| 20 | #define DR_TRAP3 (0x8) /* db3 */ | ||
| 21 | |||
| 22 | #define DR_STEP (0x4000) /* single-step */ | ||
| 23 | #define DR_SWITCH (0x8000) /* task switch */ | ||
| 24 | |||
| 25 | /* Now define a bunch of things for manipulating the control register. | ||
| 26 | The top two bytes of the control register consist of 4 fields of 4 | ||
| 27 | bits - each field corresponds to one of the four debug registers, | ||
| 28 | and indicates what types of access we trap on, and how large the data | ||
| 29 | field is that we are looking at */ | ||
| 30 | |||
| 31 | #define DR_CONTROL_SHIFT 16 /* Skip this many bits in ctl register */ | ||
| 32 | #define DR_CONTROL_SIZE 4 /* 4 control bits per register */ | ||
| 33 | |||
| 34 | #define DR_RW_EXECUTE (0x0) /* Settings for the access types to trap on */ | ||
| 35 | #define DR_RW_WRITE (0x1) | ||
| 36 | #define DR_RW_READ (0x3) | ||
| 37 | |||
| 38 | #define DR_LEN_1 (0x0) /* Settings for data length to trap on */ | ||
| 39 | #define DR_LEN_2 (0x4) | ||
| 40 | #define DR_LEN_4 (0xC) | ||
| 41 | #define DR_LEN_8 (0x8) | ||
| 42 | |||
| 43 | /* The low byte to the control register determine which registers are | ||
| 44 | enabled. There are 4 fields of two bits. One bit is "local", meaning | ||
| 45 | that the processor will reset the bit after a task switch and the other | ||
| 46 | is global meaning that we have to explicitly reset the bit. With linux, | ||
| 47 | you can use either one, since we explicitly zero the register when we enter | ||
| 48 | kernel mode. */ | ||
| 49 | |||
| 50 | #define DR_LOCAL_ENABLE_SHIFT 0 /* Extra shift to the local enable bit */ | ||
| 51 | #define DR_GLOBAL_ENABLE_SHIFT 1 /* Extra shift to the global enable bit */ | ||
| 52 | #define DR_ENABLE_SIZE 2 /* 2 enable bits per register */ | ||
| 53 | |||
| 54 | #define DR_LOCAL_ENABLE_MASK (0x55) /* Set local bits for all 4 regs */ | ||
| 55 | #define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */ | ||
| 56 | |||
| 57 | /* The second byte to the control register has a few special things. | ||
| 58 | We can slow the instruction pipeline for instructions coming via the | ||
| 59 | gdt or the ldt if we want to. I am not sure why this is an advantage */ | ||
| 60 | |||
| 61 | #define DR_CONTROL_RESERVED (0xFFFFFFFF0000FC00UL) /* Reserved */ | ||
| 62 | #define DR_LOCAL_SLOWDOWN (0x100) /* Local slow the pipeline */ | ||
| 63 | #define DR_GLOBAL_SLOWDOWN (0x200) /* Global slow the pipeline */ | ||
| 64 | |||
| 65 | #endif | ||
