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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /include/xen/xen.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/xen/xen.h')
| -rw-r--r-- | include/xen/xen.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/include/xen/xen.h b/include/xen/xen.h new file mode 100644 index 000000000..5a6a2ab67 --- /dev/null +++ b/include/xen/xen.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _XEN_XEN_H +#define _XEN_XEN_H + +enum xen_domain_type { + XEN_NATIVE, /* running on bare hardware */ + XEN_PV_DOMAIN, /* running in a PV domain */ + XEN_HVM_DOMAIN, /* running in a Xen hvm domain */ +}; + +#ifdef CONFIG_XEN +extern enum xen_domain_type xen_domain_type; +#else +#define xen_domain_type XEN_NATIVE +#endif + +#ifdef CONFIG_XEN_PVH +extern bool xen_pvh; +#else +#define xen_pvh 0 +#endif + +#define xen_domain() (xen_domain_type != XEN_NATIVE) +#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) +#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) +#define xen_pvh_domain() (xen_pvh) + +#include <linux/types.h> + +extern uint32_t xen_start_flags; + +#include <xen/interface/hvm/start_info.h> +extern struct hvm_start_info pvh_start_info; + +#ifdef CONFIG_XEN_DOM0 +#include <xen/interface/xen.h> +#include <asm/xen/hypervisor.h> + +#define xen_initial_domain() (xen_domain() && \ + (xen_start_flags & SIF_INITDOMAIN)) +#else /* !CONFIG_XEN_DOM0 */ +#define xen_initial_domain() (0) +#endif /* CONFIG_XEN_DOM0 */ + +struct bio_vec; +struct page; + +bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, + const struct page *page); + +#if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON) +extern u64 xen_saved_max_mem_size; +#endif + +#ifdef CONFIG_XEN_UNPOPULATED_ALLOC +int xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages); +void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages); +#else +#define xen_alloc_unpopulated_pages alloc_xenballooned_pages +#define xen_free_unpopulated_pages free_xenballooned_pages +#include <xen/balloon.h> +#endif + +#if defined(CONFIG_XEN_DOM0) && defined(CONFIG_ACPI) && defined(CONFIG_X86) +bool __init xen_processor_present(uint32_t acpi_id); +#else +#include <linux/bug.h> +static inline bool xen_processor_present(uint32_t acpi_id) +{ + BUG(); + return false; +} +#endif + +#endif /* _XEN_XEN_H */ |