On 10/07/2015 07:11 PM, Hon Ching(Vicky) Lo wrote:
The event log generated by OpenFirmware in PowerPC is 4-byte aligned.
This patch reformats the log to be byte-aligned for the Linux client.
Signed-off-by: Hon Ching(Vicky) Lo <[email protected]>
---
arch/powerpc/kernel/prom_init.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index b9b6bb1..8a5c248 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1417,8 +1417,9 @@ static void __init prom_instantiate_sml(void)
{
phandle ibmvtpm_node;
ihandle ibmvtpm_inst;
- u32 entry = 0, size = 0;
+ u32 entry = 0, size = 0, succ = 0;
u64 base;
+ __be32 val;
prom_debug("prom_instantiate_sml: start...\n");
@@ -1433,6 +1434,16 @@ static void __init prom_instantiate_sml(void)
return;
}
+ if (prom_getprop(ibmvtpm_node, "ibm,sml-efi-reformat-supported",
+ &val, sizeof(val)) != PROM_ERROR) {
+ if (call_prom_ret("call-method", 2, 2, &succ,
+ ADDR("reformat-sml-to-efi-alignment"),
+ ibmvtpm_inst) != 0 || succ == 0) {
reformat-sml-to-efi-alignment is something new just added in the firmware? I
don't remember seeing it before.
+ prom_printf("Reformat SML to EFI alignment failed\n");
+ return;
+ }
+ }
+
if (call_prom_ret("call-method", 2, 2, &size,
ADDR("sml-get-handover-size"),
ibmvtpm_inst) != 0 || size == 0) {
--
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