diff options
Diffstat (limited to 'arch/x86/include/asm/xen')
| -rw-r--r-- | arch/x86/include/asm/xen/hypercall.h | 22 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/page.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/trace_types.h | 18 |
3 files changed, 42 insertions, 2 deletions
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index d240ea950519..417777de5a40 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -39,6 +39,8 @@ #include <linux/string.h> #include <linux/types.h> +#include <trace/events/xen.h> + #include <asm/page.h> #include <asm/pgtable.h> @@ -459,6 +461,8 @@ MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set) { mcl->op = __HYPERVISOR_fpu_taskswitch; mcl->args[0] = set; + + trace_xen_mc_entry(mcl, 1); } static inline void @@ -475,6 +479,8 @@ MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va, mcl->args[2] = new_val.pte >> 32; mcl->args[3] = flags; } + + trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 3 : 4); } static inline void @@ -485,6 +491,8 @@ MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd, mcl->args[0] = cmd; mcl->args[1] = (unsigned long)uop; mcl->args[2] = count; + + trace_xen_mc_entry(mcl, 3); } static inline void @@ -504,6 +512,8 @@ MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long v mcl->args[3] = flags; mcl->args[4] = domid; } + + trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 4 : 5); } static inline void @@ -520,6 +530,8 @@ MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr, mcl->args[2] = desc.a; mcl->args[3] = desc.b; } + + trace_xen_mc_entry(mcl, sizeof(maddr) == sizeof(long) ? 2 : 4); } static inline void @@ -528,6 +540,8 @@ MULTI_memory_op(struct multicall_entry *mcl, unsigned int cmd, void *arg) mcl->op = __HYPERVISOR_memory_op; mcl->args[0] = cmd; mcl->args[1] = (unsigned long)arg; + + trace_xen_mc_entry(mcl, 2); } static inline void @@ -539,6 +553,8 @@ MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req, mcl->args[1] = count; mcl->args[2] = (unsigned long)success_count; mcl->args[3] = domid; + + trace_xen_mc_entry(mcl, 4); } static inline void @@ -550,6 +566,8 @@ MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count, mcl->args[1] = count; mcl->args[2] = (unsigned long)success_count; mcl->args[3] = domid; + + trace_xen_mc_entry(mcl, 4); } static inline void @@ -558,6 +576,8 @@ MULTI_set_gdt(struct multicall_entry *mcl, unsigned long *frames, int entries) mcl->op = __HYPERVISOR_set_gdt; mcl->args[0] = (unsigned long)frames; mcl->args[1] = entries; + + trace_xen_mc_entry(mcl, 2); } static inline void @@ -567,6 +587,8 @@ MULTI_stack_switch(struct multicall_entry *mcl, mcl->op = __HYPERVISOR_stack_switch; mcl->args[0] = ss; mcl->args[1] = esp; + + trace_xen_mc_entry(mcl, 2); } #endif /* _ASM_X86_XEN_HYPERCALL_H */ diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index 64a619d47d34..7ff4669580cf 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -39,7 +39,7 @@ typedef struct xpaddr { ((unsigned long)((u64)CONFIG_XEN_MAX_DOMAIN_MEMORY * 1024 * 1024 * 1024 / PAGE_SIZE)) extern unsigned long *machine_to_phys_mapping; -extern unsigned int machine_to_phys_order; +extern unsigned long machine_to_phys_nr; extern unsigned long get_phys_to_machine(unsigned long pfn); extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn); @@ -87,7 +87,7 @@ static inline unsigned long mfn_to_pfn(unsigned long mfn) if (xen_feature(XENFEAT_auto_translated_physmap)) return mfn; - if (unlikely((mfn >> machine_to_phys_order) != 0)) { + if (unlikely(mfn >= machine_to_phys_nr)) { pfn = ~0; goto try_override; } diff --git a/arch/x86/include/asm/xen/trace_types.h b/arch/x86/include/asm/xen/trace_types.h new file mode 100644 index 000000000000..21e1874c0a0b --- /dev/null +++ b/arch/x86/include/asm/xen/trace_types.h @@ -0,0 +1,18 @@ +#ifndef _ASM_XEN_TRACE_TYPES_H +#define _ASM_XEN_TRACE_TYPES_H + +enum xen_mc_flush_reason { + XEN_MC_FL_NONE, /* explicit flush */ + XEN_MC_FL_BATCH, /* out of hypercall space */ + XEN_MC_FL_ARGS, /* out of argument space */ + XEN_MC_FL_CALLBACK, /* out of callback space */ +}; + +enum xen_mc_extend_args { + XEN_MC_XE_OK, + XEN_MC_XE_BAD_OP, + XEN_MC_XE_NO_SPACE +}; +typedef void (*xen_mc_callback_fn_t)(void *); + +#endif /* _ASM_XEN_TRACE_TYPES_H */ |
