[xen master] xen/device-tree: use p2m_gpa_bits in common code

[patchbot@xxxxxxx]

commit b37c6c65c9213f3fb969c488e64f9189c700f97b
Author:     Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
AuthorDate: Thu May 7 10:58:44 2026 +0200
Commit:     Michal Orzel <michal.orzel@xxxxxxx>
CommitDate: Thu May 14 08:24:15 2026 +0200

    xen/device-tree: use p2m_gpa_bits in common code
    
    The IPA terminology is Arm-specific, so rename p2m_ipa_bits to
    p2m_gpa_bits to use architecture-neutral naming in
    xen/common/device-tree/ code.
    
    No functional changes.
    
    Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
    Acked-by: Michal Orzel <michal.orzel@xxxxxxx>
---
 xen/arch/arm/include/asm/p2m.h        | 3 +++
 xen/common/device-tree/domain-build.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/xen/arch/arm/include/asm/p2m.h b/xen/arch/arm/include/asm/p2m.h
index 010ce8c9eb..23500713a1 100644
--- a/xen/arch/arm/include/asm/p2m.h
+++ b/xen/arch/arm/include/asm/p2m.h
@@ -14,6 +14,9 @@
 /* Holds the bit size of IPAs in p2m tables.  */
 extern unsigned int p2m_ipa_bits;
 
+/* Common-code alias; ARM keeps the IPA spelling internally */
+#define p2m_gpa_bits p2m_ipa_bits
+
 #define MAX_VMID_8_BIT  (1UL << 8)
 #define MAX_VMID_16_BIT (1UL << 16)
 
diff --git a/xen/common/device-tree/domain-build.c 
b/xen/common/device-tree/domain-build.c
index 6949203dac..2a760b007b 100644
--- a/xen/common/device-tree/domain-build.c
+++ b/xen/common/device-tree/domain-build.c
@@ -221,7 +221,7 @@ int __init find_unallocated_memory(const struct kernel_info 
*kinfo,
     }
 
     start = 0;
-    end = (1ULL << p2m_ipa_bits) - 1;
+    end = (1ULL << p2m_gpa_bits) - 1;
     res = rangeset_report_ranges(unalloc_mem, PFN_DOWN(start), PFN_DOWN(end),
                                  cb, free_regions);
     if ( res )
--
generated by git-patchbot for /home/xen/git/xen.git#master