132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
/* $NetBSD: frameasm.h,v 1.2 2005/03/09 22:39:20 bouyer Exp $ */
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/* NetBSD: frameasm.h,v 1.4 2004/02/20 17:35:01 yamt Exp */
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#ifndef _I386_FRAMEASM_H_
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#define _I386_FRAMEASM_H_
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#ifdef _KERNEL_OPT
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#include "opt_multiprocessor.h"
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#endif
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/* XXX assym.h */
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#define TRAP_INSTR int $0x82
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#define __HYPERVISOR_stack_switch 4
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#define __HYPERVISOR_fpu_taskswitch 7
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#define __HYPERVISOR_physdev_op 19
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#ifndef TRAPLOG
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#define TLOG /**/
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#else
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/*
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* Fill in trap record
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*/
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#define TLOG \
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9: \
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movl %fs:CPU_TLOG_OFFSET, %eax; \
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movl %fs:CPU_TLOG_BASE, %ebx; \
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addl $SIZEOF_TREC,%eax; \
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andl $SIZEOF_TLOG-1,%eax; \
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addl %eax,%ebx; \
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movl %eax,%fs:CPU_TLOG_OFFSET; \
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movl %esp,TREC_SP(%ebx); \
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movl $9b,TREC_HPC(%ebx); \
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movl TF_EIP(%esp),%eax; \
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movl %eax,TREC_IPC(%ebx); \
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rdtsc ; \
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movl %eax,TREC_TSC(%ebx); \
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movl $MSR_LASTBRANCHFROMIP,%ecx; \
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rdmsr ; \
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movl %eax,TREC_LBF(%ebx); \
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incl %ecx ; \
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rdmsr ; \
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movl %eax,TREC_LBT(%ebx); \
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incl %ecx ; \
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rdmsr ; \
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movl %eax,TREC_IBF(%ebx); \
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incl %ecx ; \
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rdmsr ; \
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movl %eax,TREC_IBT(%ebx)
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#endif
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/*
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* These are used on interrupt or trap entry or exit.
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*/
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#define INTRENTRY \
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cld; \
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subl $TF_PUSHSIZE,%esp ; \
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movl %gs,TF_GS(%esp) ; \
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movl %fs,TF_FS(%esp) ; \
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movl %eax,TF_EAX(%esp) ; \
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movl %es,TF_ES(%esp) ; \
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movl %ds,TF_DS(%esp) ; \
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movl $GSEL(GDATA_SEL, SEL_KPL),%eax ; \
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movl %edi,TF_EDI(%esp) ; \
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movl %esi,TF_ESI(%esp) ; \
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movl %eax,%ds ; \
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movl %ebp,TF_EBP(%esp) ; \
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movl %eax,%es ; \
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movl %ebx,TF_EBX(%esp) ; \
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movl %eax,%gs ; \
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movl %edx,TF_EDX(%esp) ; \
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movl $GSEL(GCPU_SEL, SEL_KPL),%eax ; \
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movl %ecx,TF_ECX(%esp) ; \
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movl %eax,%fs ; \
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TLOG
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#define INTRFASTEXIT \
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movl TF_GS(%esp),%gs ; \
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movl TF_FS(%esp),%fs ; \
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movl TF_ES(%esp),%es ; \
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movl TF_DS(%esp),%ds ; \
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movl TF_EDI(%esp),%edi ; \
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movl TF_ESI(%esp),%esi ; \
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movl TF_EBP(%esp),%ebp ; \
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movl TF_EBX(%esp),%ebx ; \
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movl TF_EDX(%esp),%edx ; \
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movl TF_ECX(%esp),%ecx ; \
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movl TF_EAX(%esp),%eax ; \
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addl $(TF_PUSHSIZE+8),%esp ; \
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iret
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#define DO_DEFERRED_SWITCH(reg) \
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cmpl $0, CPUVAR(WANT_PMAPLOAD) ; \
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jz 1f ; \
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call _C_LABEL(pmap_load) ; \
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1:
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#define CHECK_DEFERRED_SWITCH(reg) \
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cmpl $0, CPUVAR(WANT_PMAPLOAD)
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#define CHECK_ASTPENDING(reg) movl CPUVAR(CURLWP),reg ; \
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cmpl $0, reg ; \
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je 1f ; \
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movl L_PROC(reg),reg ; \
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cmpl $0, P_MD_ASTPENDING(reg); \
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1:
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#define CLEAR_ASTPENDING(reg) movl $0, P_MD_ASTPENDING(reg)
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#if !defined(XEN)
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#define CLI(reg) cli
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#define STI(reg) sti
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#else
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/* XXX assym.h */
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#define EVENTS_MASK 136
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/* Offsets into shared_info_t. */
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#define evtchn_upcall_pending /* 0 */
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#define evtchn_upcall_mask 1
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#define XEN_BLOCK_EVENTS(reg) movb $1,evtchn_upcall_mask(reg)
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#define XEN_UNBLOCK_EVENTS(reg) movb $0,evtchn_upcall_mask(reg)
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#define XEN_TEST_PENDING(reg) testb $0xFF,evtchn_upcall_pending(%reg)
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#define CLI(reg) movl _C_LABEL(HYPERVISOR_shared_info),reg ; \
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XEN_BLOCK_EVENTS(reg)
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#define STI(reg) movl _C_LABEL(HYPERVISOR_shared_info),reg ; \
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XEN_UNBLOCK_EVENTS(reg)
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#define STIC(reg) movl _C_LABEL(HYPERVISOR_shared_info),reg ; \
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XEN_UNBLOCK_EVENTS(reg) ; \
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testb $1,evtchn_upcall_pending(reg)
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#endif
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#endif /* _I386_FRAMEASM_H_ */
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