[xen staging] x86/boot: Fix PVH boot following the start of the MBI->BI conversion

[patchbot@xxxxxxx]

commit 73785a4c7727cd7a888c7d16ca6a77c3ed0161d7
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Sat Oct 19 19:15:04 2024 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Sat Oct 19 19:25:36 2024 +0100

    x86/boot: Fix PVH boot following the start of the MBI->BI conversion
    
    pvh_init() sets up the mbi pointer, but leaves mbi_p at 0.  This isn't
    compatbile with multiboot_fill_boot_info() starting from the physical 
address,
    in order to remove the use of the mbi pointer.
    
    Fixes: 038826b61e85 ("x86/boot: move x86 boot module counting into a new 
boot_info struct")
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
 xen/arch/x86/setup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 6746ed8cce..bfede5064e 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1048,6 +1048,7 @@ void asmlinkage __init noreturn __start_xen(unsigned long 
mbi_p)
     {
         ASSERT(mbi_p == 0);
         pvh_init(&mbi, &mod);
+        mbi_p = __pa(mbi);
     }
     else
     {
--
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