search for: pushfl

...signed long get_limit(unsigned long segment) { unsigned long __limit; @@ -518,16 +459,7 @@ struct alt_instr { #define set_wmb(var, value) do { var = value; wmb(); } while (0) -/* interrupt control.. */ -#define local_save_flags(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */); } while (0) -#define local_irq_restore(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory", "cc"); } while (0) -#define local_irq_disable() __asm...

...signed long get_limit(unsigned long segment) { unsigned long __limit; @@ -518,16 +459,7 @@ struct alt_instr { #define set_wmb(var, value) do { var = value; wmb(); } while (0) -/* interrupt control.. */ -#define local_save_flags(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */); } while (0) -#define local_irq_restore(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory", "cc"); } while (0) -#define local_irq_disable() __asm...

...+505,12 @@ device_not_available_emulate: * the instruction that would have done it for sysenter. */ #define FIX_STACK(offset, ok, label) \ - cmpw $__KERNEL_CS,4(%esp); \ + COMPARE_SEGMENT_STACK(__KERNEL_CS, 4); \ jne ok; \ label: \ movl TSS_sysenter_esp0+offset(%esp),%esp; \ pushfl; \ - pushl $__KERNEL_CS; \ + push %cs; \ pushl $sysenter_past_esp KPROBE_ENTRY(debug) @@ -534,10 +534,7 @@ debug_stack_correct: * fault happened on the sysenter path. */ ENTRY(nmi) - pushl %eax - movl %ss, %eax - cmpw $__ESPFIX_SS, %ax - popl %eax + COMPARE_SEGMENT_REG(__ESPFIX_...

...+505,12 @@ device_not_available_emulate: * the instruction that would have done it for sysenter. */ #define FIX_STACK(offset, ok, label) \ - cmpw $__KERNEL_CS,4(%esp); \ + COMPARE_SEGMENT_STACK(__KERNEL_CS, 4); \ jne ok; \ label: \ movl TSS_sysenter_esp0+offset(%esp),%esp; \ pushfl; \ - pushl $__KERNEL_CS; \ + push %cs; \ pushl $sysenter_past_esp KPROBE_ENTRY(debug) @@ -534,10 +534,7 @@ debug_stack_correct: * fault happened on the sysenter path. */ ENTRY(nmi) - pushl %eax - movl %ss, %eax - cmpw $__ESPFIX_SS, %ax - popl %eax + COMPARE_SEGMENT_REG(__ESPFIX_...

...efine set_debugreg(value, register) \ - __asm__("movl %0,%%db" #register \ - : /* no output */ \ - :"r" (value)) - -/* - * Set IOPL bits in EFLAGS from given mask - */ -static inline void set_iopl_mask(unsigned mask) -{ - unsigned int reg; - __asm__ __volatile__ ("pushfl;" - "popl %0;" - "andl %1, %0;" - "orl %2, %0;" - "pushl %0;" - "popfl" - : "=&r" (reg) - : "i" (~X86_EFLAGS_IOPL), "r" (mask)); -} - /* Forward declaration, a str...

...efine set_debugreg(value, register) \ - __asm__("movl %0,%%db" #register \ - : /* no output */ \ - :"r" (value)) - -/* - * Set IOPL bits in EFLAGS from given mask - */ -static inline void set_iopl_mask(unsigned mask) -{ - unsigned int reg; - __asm__ __volatile__ ("pushfl;" - "popl %0;" - "andl %1, %0;" - "orl %2, %0;" - "pushl %0;" - "popfl" - : "=&r" (reg) - : "i" (~X86_EFLAGS_IOPL), "r" (mask)); -} - /* Forward declaration, a str...

...efine set_debugreg(value, register) \ + __asm__("movl %0,%%db" #register \ + : /* no output */ \ + :"r" (value)) + +/* + * Set IOPL bits in EFLAGS from given mask + */ +static inline void set_iopl_mask(unsigned mask) +{ + unsigned int reg; + __asm__ __volatile__ ("pushfl;" + "popl %0;" + "andl %1, %0;" + "orl %2, %0;" + "pushl %0;" + "popfl" + : "=&r" (reg) + : "i" (~X86_EFLAGS_IOPL), "r" (mask)); +} +#endif /* CONFIG_PARAVIRT */...

...efine set_debugreg(value, register) \ + __asm__("movl %0,%%db" #register \ + : /* no output */ \ + :"r" (value)) + +/* + * Set IOPL bits in EFLAGS from given mask + */ +static inline void set_iopl_mask(unsigned mask) +{ + unsigned int reg; + __asm__ __volatile__ ("pushfl;" + "popl %0;" + "andl %1, %0;" + "orl %2, %0;" + "pushl %0;" + "popfl" + : "=&r" (reg) + : "i" (~X86_EFLAGS_IOPL), "r" (mask)); +} +#endif /* CONFIG_PARAVIRT */...

...386/irqflags.h +++ b/include/asm-i386/irqflags.h @@ -9,62 +9,12 @@ */ #ifndef _ASM_IRQFLAGS_H #define _ASM_IRQFLAGS_H +#include <asm/paravirt.h> #ifndef __ASSEMBLY__ -static inline unsigned long __raw_local_save_flags(void) -{ - unsigned long flags; - - __asm__ __volatile__( - "pushfl ; popl %0" - : "=g" (flags) - : /* no input */ - ); - - return flags; -} - #define raw_local_save_flags(flags) \ do { (flags) = __raw_local_save_flags(); } while (0) - -static inline void raw_local_irq_restore(unsigned long flags) -{ - __asm__ __volatile__( - "pushl %0 ;...

...386/irqflags.h +++ b/include/asm-i386/irqflags.h @@ -9,62 +9,12 @@ */ #ifndef _ASM_IRQFLAGS_H #define _ASM_IRQFLAGS_H +#include <asm/paravirt.h> #ifndef __ASSEMBLY__ -static inline unsigned long __raw_local_save_flags(void) -{ - unsigned long flags; - - __asm__ __volatile__( - "pushfl ; popl %0" - : "=g" (flags) - : /* no input */ - ); - - return flags; -} - #define raw_local_save_flags(flags) \ do { (flags) = __raw_local_save_flags(); } while (0) - -static inline void raw_local_irq_restore(unsigned long flags) -{ - __asm__ __volatile__( - "pushl %0 ;...

...quot;=a" (eax), \ + "=r" (ebx), \ + "=c" (ecx), \ + "=d" (edx) \ + : "a" (op) \ + : "cc") + + asm volatile ("pushfl \n\t" + "pushfl \n\t" + "popl %0 \n\t" + "movl %0,%1 \n\t" + "xorl $0x200000,%0 \n\t" + "pushl %0 \n\t" +...

...quot;=a" (eax), \ + "=r" (ebx), \ + "=c" (ecx), \ + "=d" (edx) \ + : "a" (op) \ + : "cc") + + asm volatile ("pushfl \n\t" + "pushfl \n\t" + "popl %0 \n\t" + "movl %0,%1 \n\t" + "xorl $0x200000,%0 \n\t" + "pushl %0 \n\t" +...

...14-zach-work.orig/arch/i386/kernel/cpu/common.c 2005-11-04 17:45:05.000000000 -0800 +++ linux-2.6.14-zach-work/arch/i386/kernel/cpu/common.c 2005-11-05 00:28:08.000000000 -0800 @@ -617,11 +617,6 @@ void __devinit cpu_init(void) load_idt(&idt_descr); /* - * Delete NT - */ - __asm__("pushfl ; andl $0xffffbfff,(%esp) ; popfl"); - - /* * Set up and load the per-CPU TSS and LDT */ atomic_inc(&init_mm.mm_count);

...14-zach-work.orig/arch/i386/kernel/cpu/common.c 2005-11-04 17:45:05.000000000 -0800 +++ linux-2.6.14-zach-work/arch/i386/kernel/cpu/common.c 2005-11-05 00:28:08.000000000 -0800 @@ -617,11 +617,6 @@ void __devinit cpu_init(void) load_idt(&idt_descr); /* - * Delete NT - */ - __asm__("pushfl ; andl $0xffffbfff,(%esp) ; popfl"); - - /* * Set up and load the per-CPU TSS and LDT */ atomic_inc(&init_mm.mm_count);

...uot;=r" (val): "0" (0)); + return val; +} + +static fastcall void nopara_write_cr4(unsigned int val) +{ + __asm__ __volatile__("movl %0,%%cr4": :"r" (val)); +} + +static fastcall unsigned long nopara_save_fl(void) +{ + unsigned long f; + __asm__ __volatile__("pushfl ; popl %0":"=g" (f): /* no input */); + return f; +} + +static fastcall unsigned long nopara_save_fl_irq_disable(void) +{ + unsigned long f; + __asm__ __volatile__("pushfl ; popl %0; cli":"=g" (f): : "memory"); + return f; +} + +static fastcall void nopa...

...: /* no output */ \ - :"r" (value)) - -#define set_iopl_mask native_set_iopl_mask -#endif /* CONFIG_PARAVIRT */ - -/* - * Set IOPL bits in EFLAGS from given mask - */ -static fastcall inline void native_set_iopl_mask(unsigned mask) -{ - unsigned int reg; - __asm__ __volatile__ ("pushfl;" - "popl %0;" - "andl %1, %0;" - "orl %2, %0;" - "pushl %0;" - "popfl" - : "=&r" (reg) - : "i" (~X86_EFLAGS_IOPL), "r" (mask)); -} - /* Forward declaration, a str...

...: /* no output */ \ - :"r" (value)) - -#define set_iopl_mask native_set_iopl_mask -#endif /* CONFIG_PARAVIRT */ - -/* - * Set IOPL bits in EFLAGS from given mask - */ -static fastcall inline void native_set_iopl_mask(unsigned mask) -{ - unsigned int reg; - __asm__ __volatile__ ("pushfl;" - "popl %0;" - "andl %1, %0;" - "orl %2, %0;" - "pushl %0;" - "popfl" - : "=&r" (reg) - : "i" (~X86_EFLAGS_IOPL), "r" (mask)); -} - /* Forward declaration, a str...

...RY(resume_kernel) - cli + CLI cmpl $0,TI_preempt_count(%ebp) # non-zero preempt_count ? jnz restore_nocheck need_resched: @@ -193,7 +194,7 @@ ENTRY(sysenter_entry) movl TSS_sysenter_esp0(%esp),%esp .globl sysenter_past_esp sysenter_past_esp: - sti + STI pushl $(__USER_DS) pushl %ebp pushfl @@ -223,7 +224,7 @@ sysenter_past_esp: jae syscall_badsys call *sys_call_table(,%eax,4) movl %eax,EAX(%esp) - cli + CLI movl TI_flags(%ebp), %ecx testw $_TIF_ALLWORK_MASK, %cx jne syscall_exit_work @@ -231,9 +232,7 @@ sysenter_past_esp: movl EIP(%esp), %edx movl OLDESP(%esp), %ecx...

...RY(resume_kernel) - cli + CLI cmpl $0,TI_preempt_count(%ebp) # non-zero preempt_count ? jnz restore_nocheck need_resched: @@ -193,7 +194,7 @@ ENTRY(sysenter_entry) movl TSS_sysenter_esp0(%esp),%esp .globl sysenter_past_esp sysenter_past_esp: - sti + STI pushl $(__USER_DS) pushl %ebp pushfl @@ -223,7 +224,7 @@ sysenter_past_esp: jae syscall_badsys call *sys_call_table(,%eax,4) movl %eax,EAX(%esp) - cli + CLI movl TI_flags(%ebp), %ecx testw $_TIF_ALLWORK_MASK, %cx jne syscall_exit_work @@ -231,9 +232,7 @@ sysenter_past_esp: movl EIP(%esp), %edx movl OLDESP(%esp), %ecx...

I got a qemu crash and errors reported in bochs while trying to get latest core32 branch working (pxelinux): qemu: fatal: Trying to execute code outside RAM or ROM at 0xe6e8aa07 EAX=6e0c7811 EBX=000034b3 ECX=ca68b338 EDX=00000048 ESI=750e3fff EDI=00000020 EBP=d07e4988 ESP=00102324 EIP=e6e8aa07 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0028 00000000 ffffffff 00cf9300 CS =0020