From 26bbcd97d817453a114a43b661bceff5aa0131f2 Mon Sep 17 00:00:00 2001 From: Stephen Cprek Date: Wed, 10 Jan 2018 16:51:09 -0600 Subject: Open Untrusted Communication for SP Change-Id: I87c7fe74349521eaec6ebf373e99f13eb1bf74f8 CQ:SW412793 Backport:release-fips910 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/51742 Reviewed-by: Nicholas E. Bofferding Tested-by: Jenkins Server Tested-by: Jenkins OP Build CI Tested-by: Jenkins OP HW Reviewed-by: Michael Baiocchi Reviewed-by: Daniel M. Crowell --- src/include/usr/runtime/runtime.H | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) (limited to 'src/include') diff --git a/src/include/usr/runtime/runtime.H b/src/include/usr/runtime/runtime.H index d8d22a8d5..f82bf63fe 100644 --- a/src/include/usr/runtime/runtime.H +++ b/src/include/usr/runtime/runtime.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2012,2017 */ +/* Contributors Listed Below - COPYRIGHT 2012,2018 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -163,7 +163,17 @@ enum SectionId RESERVED_MEM, //< Hostboot's Reserved Mainstore Memory HRMOR_STASH, //< Pointer to address in reserved memory // where PHYP can write HRMOR - LAST_SECTION = HRMOR_STASH //< Placeholder for arrays + CPU_CTRL, // Spira-H CPU controls area + LAST_SECTION = CPU_CTRL //< Placeholder for arrays +}; + +/** + * Range of SBE unsecure memory region to open + */ +enum SbeUnsecureMemoryRegions +{ + SP_HOST_UNTRUSTED_COMM_AREA_ADDR = 0, + SP_HOST_UNTRUSTED_COMM_AREA_SIZE = 64*MEGABYTE, }; /** @@ -249,6 +259,16 @@ void setPayloadBaseAddress(uint64_t i_payloadAddress); */ void rediscover_hdat( void ); +/** + * @brief Open necessary unsecure SBE windows for SP -> host communication + * Currently opens two windows + * 1. CPU controls SP ATTN areas + * 2. SP_HOST_UNTRUSTED_COMM_AREA_ADDR + * + * @return errlHndl_t Returns nullptr on success; otherwise errlog + */ +errlHndl_t openUntrustedSpCommArea(); + } #endif -- cgit v1.2.1