diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-06-25 00:19:32 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 13:15:58 +0200 |
| commit | 9f9d489a3e78b49d897734eaaf9dea568dbea66e (patch) | |
| tree | 5c3b851701817af0937225bd38602e54ca960868 /include/asm-x86 | |
| parent | fab58420ac0007a452b540cfb07923225ea4f48d (diff) | |
x86/paravirt, 64-bit: make load_gs_index() a paravirt operation
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/elf.h | 2 | ||||
| -rw-r--r-- | include/asm-x86/paravirt.h | 10 | ||||
| -rw-r--r-- | include/asm-x86/system.h | 3 |
3 files changed, 13 insertions, 2 deletions
diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h index 8f232dc5b5f..7be4733c793 100644 --- a/include/asm-x86/elf.h +++ b/include/asm-x86/elf.h @@ -83,9 +83,9 @@ extern unsigned int vdso_enabled; (((x)->e_machine == EM_386) || ((x)->e_machine == EM_486)) #include <asm/processor.h> +#include <asm/system.h> #ifdef CONFIG_X86_32 -#include <asm/system.h> /* for savesegment */ #include <asm/desc.h> #define elf_check_arch(x) elf_check_arch_ia32(x) diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 3dc223da200..6d8966f9d19 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -115,6 +115,9 @@ struct pv_cpu_ops { void (*set_ldt)(const void *desc, unsigned entries); unsigned long (*store_tr)(void); void (*load_tls)(struct thread_struct *t, unsigned int cpu); +#ifdef CONFIG_X86_64 + void (*load_gs_index)(unsigned int idx); +#endif void (*write_ldt_entry)(struct desc_struct *ldt, int entrynum, const void *desc); void (*write_gdt_entry)(struct desc_struct *, @@ -845,6 +848,13 @@ static inline void load_TLS(struct thread_struct *t, unsigned cpu) PVOP_VCALL2(pv_cpu_ops.load_tls, t, cpu); } +#ifdef CONFIG_X86_64 +static inline void load_gs_index(unsigned int gs) +{ + PVOP_VCALL1(pv_cpu_ops.load_gs_index, gs); +} +#endif + static inline void write_ldt_entry(struct desc_struct *dt, int entry, const void *desc) { diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h index f686aa6abfe..c4946c5964b 100644 --- a/include/asm-x86/system.h +++ b/include/asm-x86/system.h @@ -136,7 +136,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ #define set_base(ldt, base) _set_base(((char *)&(ldt)) , (base)) #define set_limit(ldt, limit) _set_limit(((char *)&(ldt)) , ((limit)-1)) -extern void load_gs_index(unsigned); +extern void native_load_gs_index(unsigned); /* * Load a segment. Fall back on loading the zero @@ -282,6 +282,7 @@ static inline void native_wbinvd(void) #ifdef CONFIG_X86_64 #define read_cr8() (native_read_cr8()) #define write_cr8(x) (native_write_cr8(x)) +#define load_gs_index native_load_gs_index #endif /* Clear the 'TS' bit */ |