/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2010 - 2011 Freescale Semiconductor , Inc .
*/
#ifndef ASM_KVM_BOOKE_HV_ASM_H
#define ASM_KVM_BOOKE_HV_ASM_H
#include <asm /feature-fixups.h>
#ifdef __ASSEMBLY__
/*
* All exceptions from guest state must go through KVM
* ( except for those which are delivered directly to the guest ) - -
* there are no exceptions for which we fall through directly to
* the normal host handler .
*
* 32 - bit host
* Expected inputs ( normal exceptions ) :
* SCRATCH0 = saved r10
* r10 = thread struct
* r11 = appropriate SRR1 variant ( currently used as scratch )
* r13 = saved CR
* * ( r10 + THREAD_NORMSAVE ( 0 ) ) = saved r11
* * ( r10 + THREAD_NORMSAVE ( 2 ) ) = saved r13
*
* Expected inputs ( crit / mcheck / debug exceptions ) :
* appropriate SCRATCH = saved r8
* r8 = exception level stack frame
* r9 = * ( r8 + _ CCR ) = saved CR
* r11 = appropriate SRR1 variant ( currently used as scratch )
* * ( r8 + GPR9 ) = saved r9
* * ( r8 + GPR10 ) = saved r10 ( r10 not yet clobbered )
* * ( r8 + GPR11 ) = saved r11
*
* 64 - bit host
* Expected inputs ( GEN / GDBELL / DBG / CRIT / MC exception types ) :
* r10 = saved CR
* r13 = PACA_POINTER
* * ( r13 + PACA_EX # # type + EX_R10 ) = saved r10
* * ( r13 + PACA_EX # # type + EX_R11 ) = saved r11
* SPRN_SPRG_ # # type # # _ SCRATCH = saved r13
*
* Expected inputs ( TLB exception type ) :
* r10 = saved CR
* r12 = extlb pointer
* r13 = PACA_POINTER
* * ( r12 + EX_TLB_R10 ) = saved r10
* * ( r12 + EX_TLB_R11 ) = saved r11
* * ( r12 + EX_TLB_R13 ) = saved r13
* SPRN_SPRG_GEN_SCRATCH = saved r12
*
* Only the bolted version of TLB miss exception handlers is supported now .
*/
.macro DO_KVM intno srr1
#ifdef CONFIG_KVM_BOOKE_HV
BEGIN_FTR_SECTION
mtocrf 0 x80, r11 /* check MSR[GS] without clobbering reg */
bf 3 , 1975 f
b kvmppc_handler_\intno\()_\srr1
1975 :
END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV)
#endif
.endm
#endif /*__ASSEMBLY__ */
#endif /* ASM_KVM_BOOKE_HV_ASM_H */
Messung V0.5 in Prozent C=92 H=-100 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-02)
¤
*© Formatika GbR, Deutschland