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-rw-r--r--drivers/firmware/efi/runtime-wrappers.c17
-rw-r--r--include/linux/efi.h5
2 files changed, 18 insertions, 4 deletions
diff --git a/drivers/firmware/efi/runtime-wrappers.c b/drivers/firmware/efi/runtime-wrappers.c
index 8903b9ccfc2b..c70df5ae7c4a 100644
--- a/drivers/firmware/efi/runtime-wrappers.c
+++ b/drivers/firmware/efi/runtime-wrappers.c
@@ -89,11 +89,24 @@ exit: \
efi_rts_work.status; \
})
+#ifndef arch_efi_save_flags
+#define arch_efi_save_flags(state_flags) local_save_flags(state_flags)
+#define arch_efi_restore_flags(state_flags) local_irq_restore(state_flags)
+#endif
+
+unsigned long efi_call_virt_save_flags(void)
+{
+ unsigned long flags;
+
+ arch_efi_save_flags(flags);
+ return flags;
+}
+
void efi_call_virt_check_flags(unsigned long flags, const char *call)
{
unsigned long cur_flags, mismatch;
- local_save_flags(cur_flags);
+ cur_flags = efi_call_virt_save_flags();
mismatch = flags ^ cur_flags;
if (!WARN_ON_ONCE(mismatch & ARCH_EFI_IRQ_FLAGS_MASK))
@@ -102,7 +115,7 @@ void efi_call_virt_check_flags(unsigned long flags, const char *call)
add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_NOW_UNRELIABLE);
pr_err_ratelimited(FW_BUG "IRQ flags corrupted (0x%08lx=>0x%08lx) by EFI %s\n",
flags, cur_flags, call);
- local_irq_restore(flags);
+ arch_efi_restore_flags(flags);
}
/*
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 45ff763fba76..bd80b7ec35db 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1607,6 +1607,7 @@ efi_status_t efi_setup_gop(efi_system_table_t *sys_table_arg,
bool efi_runtime_disabled(void);
extern void efi_call_virt_check_flags(unsigned long flags, const char *call);
+extern unsigned long efi_call_virt_save_flags(void);
enum efi_secureboot_mode {
efi_secureboot_mode_unset,
@@ -1652,7 +1653,7 @@ void efi_retrieve_tpm2_eventlog(efi_system_table_t *sys_table);
\
arch_efi_call_virt_setup(); \
\
- local_save_flags(__flags); \
+ __flags = efi_call_virt_save_flags(); \
__s = arch_efi_call_virt(p, f, args); \
efi_call_virt_check_flags(__flags, __stringify(f)); \
\
@@ -1667,7 +1668,7 @@ void efi_retrieve_tpm2_eventlog(efi_system_table_t *sys_table);
\
arch_efi_call_virt_setup(); \
\
- local_save_flags(__flags); \
+ __flags = efi_call_virt_save_flags(); \
arch_efi_call_virt(p, f, args); \
efi_call_virt_check_flags(__flags, __stringify(f)); \
\