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ia64/pv_ops/bp/xen: implemented binary patchable pv_cpu_ops.

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implemented xen binary patch for pv_cpu_ops.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Isaku Yamahata
2009-03-04 21:06:55 +09:00
committed by Tony Luck
parent dae17da60d
commit 0a7d324402
3 changed files with 671 additions and 0 deletions
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4
arch/ia64/include/asm/xen/privop.h
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@@ -82,8 +82,10 @@ extern unsigned long xen_thash(unsigned long addr);
extern unsigned long xen_get_cpuid(int index);
extern unsigned long xen_get_pmd(int index);
#ifndef ASM_SUPPORTED
extern unsigned long xen_get_eflag(void); /* see xen_ia64_getreg */
extern void xen_set_eflag(unsigned long); /* see xen_ia64_setreg */
#endif
/************************************************/
/* Instructions paravirtualized for performance */
@@ -108,6 +110,7 @@ extern void xen_set_eflag(unsigned long); /* see xen_ia64_setreg */
#define xen_get_virtual_pend() \
(*(((uint8_t *)XEN_MAPPEDREGS->interrupt_mask_addr) - 1))
#ifndef ASM_SUPPORTED
/* Although all privileged operations can be left to trap and will
* be properly handled by Xen, some are frequent enough that we use
* hyperprivops for performance. */
@@ -125,6 +128,7 @@ extern void xen_set_rr0_to_rr4(unsigned long val0, unsigned long val1,
unsigned long val4);
extern void xen_set_kr(unsigned long index, unsigned long val);
extern void xen_ptcga(unsigned long addr, unsigned long size);
#endif /* !ASM_SUPPORTED */
#endif /* !__ASSEMBLY__ */