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vTPM: reformat event log to be byte-aligned

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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 <honclo@linux.vnet.ibm.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
This commit is contained in:
Hon Ching \(Vicky\) Lo 2015-10-07 20:11:53 -04:00 committed by Peter Huewe
parent 2f82e98265
commit b4ed0469d0
1 changed files with 12 additions and 1 deletions
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13
arch/powerpc/kernel/prom_init.c
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@ -1425,8 +1425,9 @@ static void __init prom_instantiate_sml(void)
{ {
phandle ibmvtpm_node; phandle ibmvtpm_node;
ihandle ibmvtpm_inst; ihandle ibmvtpm_inst;
u32 entry = 0, size = 0; u32 entry = 0, size = 0, succ = 0;
u64 base; u64 base;
__be32 val;
prom_debug("prom_instantiate_sml: start...\n"); prom_debug("prom_instantiate_sml: start...\n");
@ -1441,6 +1442,16 @@ static void __init prom_instantiate_sml(void)
return; 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) {
prom_printf("Reformat SML to EFI alignment failed\n");
return;
}
}
if (call_prom_ret("call-method", 2, 2, &size, if (call_prom_ret("call-method", 2, 2, &size,
ADDR("sml-get-handover-size"), ADDR("sml-get-handover-size"),
ibmvtpm_inst) != 0 || size == 0) { ibmvtpm_inst) != 0 || size == 0) {