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authorMatt Fleming <matt.fleming@intel.com>2014-01-15 13:49:51 +0000
committerMark Brown <broonie@linaro.org>2014-08-08 20:20:30 +0100
commitfe23789ddbdb7e8c8a3da4a5ff40f1a1940146a5 (patch)
treeb9008cba45023e4bd8bb861a3551fad11ac6dc43 /arch/ia64/kernel
parent1e7a3effc791805eb48403035df367e5ba3d9dd0 (diff)
ia64/efi: Implement efi_enabled()
There's no good reason to keep efi_enabled() under CONFIG_X86 anymore, since nothing about the implementation is specific to x86. Set EFI feature flags in the ia64 boot path instead of claiming to support all features. The old behaviour was actually buggy since efi.memmap never points to a valid memory map, so we shouldn't be claiming to support EFI_MEMMAP. Fortunately, this bug was never triggered because EFI_MEMMAP isn't used outside of arch/x86 currently, but that may not always be the case. Reviewed-and-tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com> (cherry picked from commit 092063808c498eccac8e891973bf143e7b60d723) Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/efi.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index da5b462e6de6..741b99c1a0b1 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -477,6 +477,9 @@ efi_init (void)
char *cp, vendor[100] = "unknown";
int i;
+ set_bit(EFI_BOOT, &efi.flags);
+ set_bit(EFI_64BIT, &efi.flags);
+
/*
* It's too early to be able to use the standard kernel command line
* support...
@@ -529,6 +532,8 @@ efi_init (void)
efi.systab->hdr.revision >> 16,
efi.systab->hdr.revision & 0xffff, vendor);
+ set_bit(EFI_SYSTEM_TABLES, &efi.flags);
+
palo_phys = EFI_INVALID_TABLE_ADDR;
if (efi_config_init(arch_tables) != 0)
@@ -657,6 +662,8 @@ efi_enter_virtual_mode (void)
return;
}
+ set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+
/*
* Now that EFI is in virtual mode, we call the EFI functions more
* efficiently: