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[PATCH v4 15/44] x86/boot: introduce boot module interator
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 30 Aug 2024 17:47:00 -0400
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- Cc: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, jason.andryuk@xxxxxxx, christopher.w.clark@xxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivered-to: dpsmith@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Fri, 30 Aug 2024 21:56:14 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Provide an iterator to go through boot module array searching based on type.
Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
xen/arch/x86/include/asm/bootinfo.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/include/asm/bootinfo.h
b/xen/arch/x86/include/asm/bootinfo.h
index 37132afb4e6a..99f8c9b83b25 100644
--- a/xen/arch/x86/include/asm/bootinfo.h
+++ b/xen/arch/x86/include/asm/bootinfo.h
@@ -42,8 +42,24 @@ struct boot_info {
uint32_t mmap_length;
};
-#endif
+static inline int __init next_boot_module_index(
+ const struct boot_info *bi, enum bootmod_type t, int offset)
+{
+ int i;
+
+ for ( i = offset; i < bi->nr_mods; i++ )
+ {
+ if ( bi->mods[i].type == t )
+ return i;
+ }
+
+ return -1;
+}
+#define first_boot_module_index(bi, t) \
+ next_boot_module_index(bi, t, 0)
+
+#endif
/*
* Local variables:
* mode: C
--
2.30.2
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