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These function are all called from assembler files, or from inline assembler, so there is no immediate need for a prototype in a header, but if -Wmissing-prototypes is enabled, the compiler warns about them: arch/x86/xen/efi.c:130:13: error: no previous prototype for 'xen_efi_init' [-Werror=missing-prototypes] arch/x86/platform/pvh/enlighten.c:120:13: error: no previous prototype for 'xen_prepare_pvh' [-Werror=missing-prototypes] arch/x86/xen/enlighten_pv.c:1233:34: error: no previous prototype for 'xen_start_kernel' [-Werror=missing-prototypes] arch/x86/xen/irq.c:22:14: error: no previous prototype for 'xen_force_evtchn_callback' [-Werror=missing-prototypes] arch/x86/entry/common.c:302:24: error: no previous prototype for 'xen_pv_evtchn_do_upcall' [-Werror=missing-prototypes] Declare all of them in an appropriate header file to avoid the warnings. For consistency, also move the asm_cpu_bringup_and_idle() declaration out of smp_pv.c. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20230614073501.10101-3-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _XEN_XEN_H
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#define _XEN_XEN_H
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#include <linux/types.h>
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enum xen_domain_type {
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XEN_NATIVE, /* running on bare hardware */
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XEN_PV_DOMAIN, /* running in a PV domain */
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XEN_HVM_DOMAIN, /* running in a Xen hvm domain */
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};
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#ifdef CONFIG_XEN
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extern enum xen_domain_type xen_domain_type;
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#else
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#define xen_domain_type XEN_NATIVE
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#endif
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#ifdef CONFIG_XEN_PVH
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extern bool xen_pvh;
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#else
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#define xen_pvh 0
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#endif
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#define xen_domain() (xen_domain_type != XEN_NATIVE)
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#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN)
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#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN)
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#define xen_pvh_domain() (xen_pvh)
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extern uint32_t xen_start_flags;
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#include <xen/interface/hvm/start_info.h>
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extern struct hvm_start_info pvh_start_info;
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void xen_prepare_pvh(void);
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struct pt_regs;
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void xen_pv_evtchn_do_upcall(struct pt_regs *regs);
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#ifdef CONFIG_XEN_DOM0
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#include <xen/interface/xen.h>
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#include <asm/xen/hypervisor.h>
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#define xen_initial_domain() (xen_domain() && \
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(xen_start_flags & SIF_INITDOMAIN))
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#else /* !CONFIG_XEN_DOM0 */
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#define xen_initial_domain() (0)
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#endif /* CONFIG_XEN_DOM0 */
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struct bio_vec;
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struct page;
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bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
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const struct page *page);
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#if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON)
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extern u64 xen_saved_max_mem_size;
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#endif
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#ifdef CONFIG_XEN_UNPOPULATED_ALLOC
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int xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages);
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void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages);
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#include <linux/ioport.h>
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int arch_xen_unpopulated_init(struct resource **res);
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#else
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#include <xen/balloon.h>
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static inline int xen_alloc_unpopulated_pages(unsigned int nr_pages,
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struct page **pages)
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{
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return xen_alloc_ballooned_pages(nr_pages, pages);
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}
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static inline void xen_free_unpopulated_pages(unsigned int nr_pages,
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struct page **pages)
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{
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xen_free_ballooned_pages(nr_pages, pages);
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}
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#endif
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#if defined(CONFIG_XEN_DOM0) && defined(CONFIG_ACPI) && defined(CONFIG_X86)
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bool __init xen_processor_present(uint32_t acpi_id);
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#else
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#include <linux/bug.h>
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static inline bool xen_processor_present(uint32_t acpi_id)
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{
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BUG();
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return false;
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}
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#endif
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#endif /* _XEN_XEN_H */
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