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feaa64c41f
Recent PowerKVM allows the kernel to intercept some RTAS calls from the guest directly. This is used to implement the more efficient in-kernel XICS for example. qemu is still responsible for assigning the RTAS token numbers however, and needs to tell the kernel which RTAS function name is assigned to a given token value. This patch adds a convenience wrapper for the KVM_PPC_RTAS_DEFINE_TOKEN ioctl() which is used for this purpose. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
217 lines
4.8 KiB
C
217 lines
4.8 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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#define TYPE_HOST_POWERPC_CPU "host-" TYPE_POWERPC_CPU
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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_hasidle(CPUPPCState *env);
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int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len);
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int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level);
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void kvmppc_set_papr(PowerPCCPU *cpu);
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void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
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int kvmppc_smt_threads(void);
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int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
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int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits);
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int kvmppc_set_tcr(PowerPCCPU *cpu);
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int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu);
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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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int kvmppc_reset_htab(int shift_hint);
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uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift);
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#endif /* !CONFIG_USER_ONLY */
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int kvmppc_fixup_cpu(PowerPCCPU *cpu);
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bool kvmppc_has_cap_epr(void);
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int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function);
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int kvmppc_get_htab_fd(bool write);
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int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize, int64_t max_ns);
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int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
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uint16_t n_valid, uint16_t n_invalid);
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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_hasidle(CPUPPCState *env)
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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_read_segment_page_sizes(uint32_t *prop, int maxcells)
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{
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return -1;
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}
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static inline int kvmppc_set_interrupt(PowerPCCPU *cpu, 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(PowerPCCPU *cpu)
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{
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}
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static inline void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
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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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static inline int kvmppc_or_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
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{
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return 0;
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}
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static inline int kvmppc_clear_tsr_bits(PowerPCCPU *cpu, uint32_t tsr_bits)
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{
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return 0;
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}
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static inline int kvmppc_set_tcr(PowerPCCPU *cpu)
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{
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return 0;
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}
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static inline int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu)
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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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static inline int kvmppc_reset_htab(int shift_hint)
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{
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return -1;
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}
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static inline uint64_t kvmppc_rma_size(uint64_t current_size,
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unsigned int hash_shift)
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{
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return ram_size;
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}
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static inline int kvmppc_update_sdr1(CPUPPCState *env)
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{
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return 0;
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}
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#endif /* !CONFIG_USER_ONLY */
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static inline int kvmppc_fixup_cpu(PowerPCCPU *cpu)
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{
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return -1;
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}
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static inline bool kvmppc_has_cap_epr(void)
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{
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return false;
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}
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static inline int kvmppc_define_rtas_kernel_token(uint32_t token,
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const char *function)
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{
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return -1;
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}
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static inline int kvmppc_get_htab_fd(bool write)
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{
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return -1;
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}
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static inline int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize,
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int64_t max_ns)
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{
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abort();
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}
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static inline int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index,
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uint16_t n_valid, uint16_t n_invalid)
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{
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abort();
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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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