[RFC PATCH v2 36/45] arm64/efi: Add ALLINT to IRQ flags checks

[Vladimir Murzin]

EFI is not expected to modify PSTATE.ALLINT, so check that it remains
unchanged across EFI runtime calls.

Signed-off-by: Vladimir Murzin <vladimir.murzin at arm.com>
Reviewed-by: Jinjie Ruan <ruanjinjie at huawei.com>
---
 arch/arm64/include/asm/efi.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index 0fc5a8cd5850..c7fb21c00690 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -78,6 +78,10 @@ do {															\
 		pr_err_ratelimited(FW_BUG "DAIF+PMR corrupted (0x%x + 0x%x=>0x%x + 0x%x) by EFI call from %pS\n",	\
 				   __expected.daif, __expected.pmr, __actual.daif, __actual.pmr,			\
 				   caller ?: __builtin_return_address(0));						\
+	} else if (system_uses_nmi()) {											\
+		pr_err_ratelimited(FW_BUG "DAIF+ALLINT corrupted (0x%x + 0x%x=>0x%x + 0x%x) by EFI call from %pS\n",	\
+				   __expected.daif, __expected.allint, __actual.daif, __actual.allint,			\
+				   caller ?: __builtin_return_address(0));						\
 	} else {													\
 		pr_err_ratelimited(FW_BUG "DAIF corrupted (0x%x=>0x%x) by EFI call from %pS\n",				\
 				   __expected.daif, __actual.daif,							\
-- 
2.34.1