On Tue, 2009-07-07 at 16:17 +0200, Alexander Graf wrote: > +.macro to_phys dest_reg, source_reg > +#if PAGE_OFFSET == 0xc000000000000000 > + clrldi \dest_reg, \source_reg, 2 > +#else > + #error Unknown PAGE_OFFSET > +#endif
We already have tophys() for that in ppc_asm.h BTW. We prefer using C-style #define for asm macros ... bad habit maybe but at least it's consistent :-) > +.endm > + > +.macro loadimm reg, imm > + lis \reg, \...@highest > + ori \reg, \reg, \...@higher > + rldicr \reg, \reg, 32, 31 > + oris \reg, \reg, \...@h > + ori \reg, \reg, \...@l > +.endm We already have LOAD_REG_IMMEDIATE() in ppc_asm.h :-) > +.macro setmagc reg > + ori \reg, r13, 1 /* r3 = PACA | 1 */ > + mtspr SPRN_SPRG3, \reg /* SPRG3 =PACA | 1 */ > +.endm Fun :-) So you set the PACA low bit to indicate you are running in the guest ? That's a pretty good way to do it I suppose. > +#define HOST_STACK_R1 (0 * ULONG_SIZE) > +/* We need to keep some space here that the C function */ > +/* we jump into later can clobber */ > +#define HOST_STACK_LR (8 * ULONG_SIZE) > +#define HOST_STACK_RUN (9 * ULONG_SIZE) > +#define HOST_STACK_VCPU (10 * ULONG_SIZE) > +#define HOST_STACK_R14 (14 * ULONG_SIZE) > +#define HOST_STACK_R15 (15 * ULONG_SIZE) > +#define HOST_STACK_R16 (16 * ULONG_SIZE) > +#define HOST_STACK_R17 (17 * ULONG_SIZE) > +#define HOST_STACK_R18 (18 * ULONG_SIZE) > +#define HOST_STACK_R19 (19 * ULONG_SIZE) > +#define HOST_STACK_R20 (20 * ULONG_SIZE) > +#define HOST_STACK_R21 (21 * ULONG_SIZE) > +#define HOST_STACK_R22 (22 * ULONG_SIZE) > +#define HOST_STACK_R23 (23 * ULONG_SIZE) > +#define HOST_STACK_R24 (24 * ULONG_SIZE) > +#define HOST_STACK_R25 (25 * ULONG_SIZE) > +#define HOST_STACK_R26 (26 * ULONG_SIZE) > +#define HOST_STACK_R27 (27 * ULONG_SIZE) > +#define HOST_STACK_R28 (28 * ULONG_SIZE) > +#define HOST_STACK_R29 (29 * ULONG_SIZE) > +#define HOST_STACK_R30 (30 * ULONG_SIZE) > +#define HOST_STACK_R31 (31 * ULONG_SIZE) > +#define HOST_STACK_MIN_SIZE (HOST_STACK_R31 + ULONG_SIZE) > +#define HOST_STACK_SIZE (((HOST_STACK_MIN_SIZE + 15) / 16) * 16) /* Align. */ > +#define VCPU_GPR(n) (VCPU_GPRS + (n * ULONG_SIZE)) Can't you define a C structure and generate offsets in asm-offsets.h using asm-offsets.c like we do for most other stuff ? Cheers, Ben. > +.macro mfpaca tmp_reg, src_reg, offset, vcpu_reg > + ld \tmp_reg, (PACA_EXMC+\offset)(r13) > + std \tmp_reg, VCPU_GPR(\src_reg)(\vcpu_reg) > +.endm > + > + > +.macro DO_KVM intno > + .if (\intno == PPC970_INTERRUPT_SYSTEM_RESET) || \ > + (\intno == PPC970_INTERRUPT_MACHINE_CHECK) || \ > + (\intno == PPC970_INTERRUPT_DATA_STORAGE) || \ > + (\intno == PPC970_INTERRUPT_INST_STORAGE) || \ > + (\intno == PPC970_INTERRUPT_DATA_SEGMENT) || \ > + (\intno == PPC970_INTERRUPT_INST_SEGMENT) || \ > + (\intno == PPC970_INTERRUPT_EXTERNAL) || \ > + (\intno == PPC970_INTERRUPT_ALIGNMENT) || \ > + (\intno == PPC970_INTERRUPT_PROGRAM) || \ > + (\intno == PPC970_INTERRUPT_FP_UNAVAIL) || \ > + (\intno == PPC970_INTERRUPT_DECREMENTER) || \ > + (\intno == PPC970_INTERRUPT_SYSCALL) || \ > + (\intno == PPC970_INTERRUPT_TRACE) || \ > + (\intno == PPC970_INTERRUPT_PERFMON) || \ > + (\intno == PPC970_INTERRUPT_ALTIVEC) || \ > + (\intno == PPC970_INTERRUPT_VSX) > + > + b kvmppc_trampoline_\intno > +kvmppc_resume_\intno: > + > + .endif > +.endm > + > +#else > + > +.macro DO_KVM intno > +.endm > + > +#endif /* CONFIG_KVM_970_HANDLER */ > + > +#endif /* __ASM_KVM_970_ASM_H__ */ -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
