Commit 62d7d7ed authored by Glauber de Oliveira Costa's avatar Glauber de Oliveira Costa Committed by Ingo Molnar

x86: move the definition of set_iopl_mask to common header

This patch moves the definition of set_iopl_mask to processor.h,
instead of letting it at processor_32.h.
For x86_64, nothing is done, as we don't really need such a function.
However, having it on both arches saves us from putting an ifdef in the
pv_cpu_ops struct.
Signed-off-by: default avatarGlauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 1b46cbe0
...@@ -78,6 +78,24 @@ static inline void native_set_debugreg(int regno, unsigned long value) ...@@ -78,6 +78,24 @@ static inline void native_set_debugreg(int regno, unsigned long value)
} }
} }
/*
* Set IOPL bits in EFLAGS from given mask
*/
static inline void native_set_iopl_mask(unsigned mask)
{
#ifdef CONFIG_X86_32
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
}
#ifndef CONFIG_PARAVIRT #ifndef CONFIG_PARAVIRT
#define __cpuid native_cpuid #define __cpuid native_cpuid
...@@ -91,6 +109,7 @@ static inline void native_set_debugreg(int regno, unsigned long value) ...@@ -91,6 +109,7 @@ static inline void native_set_debugreg(int regno, unsigned long value)
#define set_debugreg(value, register) \ #define set_debugreg(value, register) \
native_set_debugreg(register, value) native_set_debugreg(register, value)
#define set_iopl_mask native_set_iopl_mask
#endif /* CONFIG_PARAVIRT */ #endif /* CONFIG_PARAVIRT */
/* /*
......
...@@ -455,21 +455,6 @@ static inline void native_load_sp0(struct tss_struct *tss, struct thread_struct ...@@ -455,21 +455,6 @@ static inline void native_load_sp0(struct tss_struct *tss, struct thread_struct
wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0); wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
} }
} }
/*
* Set IOPL bits in EFLAGS from given mask
*/
static 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));
}
#ifdef CONFIG_PARAVIRT #ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h> #include <asm/paravirt.h>
...@@ -479,8 +464,6 @@ static inline void load_sp0(struct tss_struct *tss, struct thread_struct *thread ...@@ -479,8 +464,6 @@ static inline void load_sp0(struct tss_struct *tss, struct thread_struct *thread
{ {
native_load_sp0(tss, thread); native_load_sp0(tss, thread);
} }
#define set_iopl_mask native_set_iopl_mask
#endif /* CONFIG_PARAVIRT */ #endif /* CONFIG_PARAVIRT */
/* generic versions from gas */ /* generic versions from gas */
......
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