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awilliam@xenbuild2.aw
8a9e0cc712
ia64 specific parts of mini-os. Minimal config: # Kernel image file. kernel = "mini-os.gz" # Initial memory allocation (in megabytes) for the new domain. memory = 64 # A name for your domain. name = "Mini-OS" Signed-off-by: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
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/*
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* Copyright (C) 2005 Hewlett-Packard Co
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* Dan Magenheimer <dan.magenheimer@hp.com>
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*
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* Paravirtualizations of privileged operations for Xen/ia64
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*
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*/
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#ifndef _PRIVOP_H_
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#define _PRIVOP_H_
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#include <xen/arch-ia64.h>
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#define IA64_PARAVIRTUALIZED
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/* At 1 MB, before per-cpu space but still addressable using addl instead
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of movl. */
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#define XSI_BASE 0xfffffffffff00000
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/* Address of mapped regs. */
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#define XMAPPEDREGS_BASE (XSI_BASE + XSI_SIZE)
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#ifdef __ASSEMBLY__
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#define XEN_HYPER_RFI break HYPERPRIVOP_RFI
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#define XEN_HYPER_RSM_PSR_DT break HYPERPRIVOP_RSM_DT
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#define XEN_HYPER_SSM_PSR_DT break HYPERPRIVOP_SSM_DT
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#define XEN_HYPER_COVER break HYPERPRIVOP_COVER
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#define XEN_HYPER_ITC_D break HYPERPRIVOP_ITC_D
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#define XEN_HYPER_ITC_I break HYPERPRIVOP_ITC_I
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#define XEN_HYPER_SSM_I break HYPERPRIVOP_SSM_I
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#define XEN_HYPER_GET_IVR break HYPERPRIVOP_GET_IVR
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#define XEN_HYPER_GET_TPR break HYPERPRIVOP_GET_TPR
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#define XEN_HYPER_SET_TPR break HYPERPRIVOP_SET_TPR
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#define XEN_HYPER_EOI break HYPERPRIVOP_EOI
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#define XEN_HYPER_SET_ITM break HYPERPRIVOP_SET_ITM
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#define XEN_HYPER_THASH break HYPERPRIVOP_THASH
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#define XEN_HYPER_PTC_GA break HYPERPRIVOP_PTC_GA
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#define XEN_HYPER_ITR_D break HYPERPRIVOP_ITR_D
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#define XEN_HYPER_GET_RR break HYPERPRIVOP_GET_RR
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#define XEN_HYPER_SET_RR break HYPERPRIVOP_SET_RR
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#define XEN_HYPER_SET_KR break HYPERPRIVOP_SET_KR
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#define XEN_HYPER_FC break HYPERPRIVOP_FC
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#define XEN_HYPER_GET_CPUID break HYPERPRIVOP_GET_CPUID
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#define XEN_HYPER_GET_PMD break HYPERPRIVOP_GET_PMD
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#define XEN_HYPER_GET_EFLAG break HYPERPRIVOP_GET_EFLAG
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#define XEN_HYPER_SET_EFLAG break HYPERPRIVOP_SET_EFLAG
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#define XEN_HYPER_RSM_BE break HYPERPRIVOP_RSM_BE
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#define XEN_HYPER_GET_PSR break HYPERPRIVOP_GET_PSR
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#define XSI_IFS (XSI_BASE + XSI_IFS_OFS)
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#define XSI_PRECOVER_IFS (XSI_BASE + XSI_PRECOVER_IFS_OFS)
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#define XSI_INCOMPL_REGFR (XSI_BASE + XSI_INCOMPL_REGFR_OFS)
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#define XSI_IFA (XSI_BASE + XSI_IFA_OFS)
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#define XSI_ISR (XSI_BASE + XSI_ISR_OFS)
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#define XSI_IIM (XSI_BASE + XSI_IIM_OFS)
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#define XSI_ITIR (XSI_BASE + XSI_ITIR_OFS)
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#define XSI_PSR_I_ADDR (XSI_BASE + XSI_PSR_I_ADDR_OFS)
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#define XSI_PSR_IC (XSI_BASE + XSI_PSR_IC_OFS)
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#define XSI_IPSR (XSI_BASE + XSI_IPSR_OFS)
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#define XSI_IIP (XSI_BASE + XSI_IIP_OFS)
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#define XSI_BANK1_R16 (XSI_BASE + XSI_BANK1_R16_OFS)
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#define XSI_BANKNUM (XSI_BASE + XSI_BANKNUM_OFS)
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#define XSI_IHA (XSI_BASE + XSI_IHA_OFS)
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#endif
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#ifndef __ASSEMBLY__
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#define XEN_HYPER_SSM_I asm("break %0" : : "i" (HYPERPRIVOP_SSM_I))
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#define XEN_HYPER_GET_IVR asm("break %0" : : "i" (HYPERPRIVOP_GET_IVR))
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/************************************************/
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/* Instructions paravirtualized for performance */
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/************************************************/
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/* Xen uses memory-mapped virtual privileged registers for access to many
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* performance-sensitive privileged registers. Some, like the processor
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* status register (psr), are broken up into multiple memory locations.
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* Others, like "pend", are abstractions based on privileged registers.
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* "Pend" is guaranteed to be set if reading cr.ivr would return a
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* (non-spurious) interrupt. */
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#define XEN_MAPPEDREGS ((struct mapped_regs *)XMAPPEDREGS_BASE)
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#define XSI_PSR_I \
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(*XEN_MAPPEDREGS->interrupt_mask_addr)
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#define xen_get_virtual_psr_i() \
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(!XSI_PSR_I)
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#define xen_set_virtual_psr_i(_val) \
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({ XSI_PSR_I = (uint8_t)(_val) ? 0 : 1; })
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#define xen_get_virtual_psr_ic() \
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( XEN_MAPPEDREGS->interrupt_collection_enabled )
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#define xen_set_virtual_psr_ic(_val) \
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({ XEN_MAPPEDREGS->interrupt_collection_enabled = _val ? 1 : 0; })
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#define xen_get_virtual_pend() (XEN_MAPPEDREGS->pending_interruption)
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#endif /* __ASSEMBLY__ */
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#endif /* _PRIVOP_H_ */
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