12b1143b28
On target-ppc, our table of CPU types and features encodes the features as found on the hardware, regardless of whether these features are actually usable under TCG or KVM. We already have cases where the information from the cpu table must be fixed up to account for limitations in the emulation method we're using. e.g. TCG does not support the DFP and VSX instructions and KVM needs different numbering of the CPUs in order to tell it the correct thread to core mappings. This patch cleans up these hacks to handle emulation limitations by consolidating them into a pair of functions specifically for the purpose. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [AF: Style and typo fixes, rename new functions and drop ppc_def_t arg] Signed-off-by: Andreas Färber <afaerber@suse.de>
129 lines
2.6 KiB
C
129 lines
2.6 KiB
C
/*
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* Copyright 2008 IBM Corporation.
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*
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* This work is licensed under the GNU GPL license version 2 or later.
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*
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*/
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#ifndef __KVM_PPC_H__
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#define __KVM_PPC_H__
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#include "memory.h"
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void kvmppc_init(void);
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#ifdef CONFIG_KVM
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uint32_t kvmppc_get_tbfreq(void);
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uint64_t kvmppc_get_clockfreq(void);
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uint32_t kvmppc_get_vmx(void);
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uint32_t kvmppc_get_dfp(void);
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int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len);
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int kvmppc_set_interrupt(CPUPPCState *env, int irq, int level);
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void kvmppc_set_papr(CPUPPCState *env);
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int kvmppc_smt_threads(void);
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#ifndef CONFIG_USER_ONLY
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off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem);
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void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd);
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int kvmppc_remove_spapr_tce(void *table, int pfd, uint32_t window_size);
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#endif /* !CONFIG_USER_ONLY */
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const ppc_def_t *kvmppc_host_cpu_def(void);
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int kvmppc_fixup_cpu(CPUPPCState *env);
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#else
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static inline uint32_t kvmppc_get_tbfreq(void)
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{
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return 0;
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}
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static inline uint64_t kvmppc_get_clockfreq(void)
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{
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return 0;
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}
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static inline uint32_t kvmppc_get_vmx(void)
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{
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return 0;
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}
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static inline uint32_t kvmppc_get_dfp(void)
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{
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return 0;
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}
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static inline int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len)
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{
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return -1;
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}
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static inline int kvmppc_set_interrupt(CPUPPCState *env, int irq, int level)
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{
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return -1;
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}
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static inline void kvmppc_set_papr(CPUPPCState *env)
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{
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}
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static inline int kvmppc_smt_threads(void)
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{
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return 1;
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}
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#ifndef CONFIG_USER_ONLY
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static inline off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem)
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{
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return 0;
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}
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static inline void *kvmppc_create_spapr_tce(uint32_t liobn,
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uint32_t window_size, int *fd)
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{
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return NULL;
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}
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static inline int kvmppc_remove_spapr_tce(void *table, int pfd,
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uint32_t window_size)
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{
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return -1;
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}
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#endif /* !CONFIG_USER_ONLY */
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static inline const ppc_def_t *kvmppc_host_cpu_def(void)
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{
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return NULL;
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}
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static inline int kvmppc_fixup_cpu(CPUPPCState *env)
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{
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return -1;
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}
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#endif
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#ifndef CONFIG_KVM
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#define kvmppc_eieio() do { } while (0)
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#else
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#define kvmppc_eieio() \
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do { \
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if (kvm_enabled()) { \
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asm volatile("eieio" : : : "memory"); \
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} \
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} while (0)
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#endif
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#ifndef KVM_INTERRUPT_SET
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#define KVM_INTERRUPT_SET -1
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#endif
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#ifndef KVM_INTERRUPT_UNSET
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#define KVM_INTERRUPT_UNSET -2
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#endif
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#ifndef KVM_INTERRUPT_SET_LEVEL
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#define KVM_INTERRUPT_SET_LEVEL -3
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#endif
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#endif /* __KVM_PPC_H__ */
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