From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e39.co.us.ibm.com (e39.co.us.ibm.com [32.97.110.160]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 134DC1A0068 for ; Mon, 25 Aug 2014 23:00:26 +1000 (EST) Received: from /spool/local by e39.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 25 Aug 2014 07:00:24 -0600 Received: from b03cxnp08028.gho.boulder.ibm.com (b03cxnp08028.gho.boulder.ibm.com [9.17.130.20]) by d03dlp02.boulder.ibm.com (Postfix) with ESMTP id 93CFC3E40044 for ; Mon, 25 Aug 2014 07:00:23 -0600 (MDT) Received: from d03av01.boulder.ibm.com (b03eismtpcl100.ahe.boulder.ibm.com [9.17.195.167]) by b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id s7PD0Nal21496016 for ; Mon, 25 Aug 2014 15:00:23 +0200 Received: from d03av01.boulder.ibm.com (localhost [127.0.0.1]) by d03av01.boulder.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s7PD0NBL026302 for ; Mon, 25 Aug 2014 07:00:23 -0600 Subject: [PATCH] Add private HCALL to inform updated RTAS base and entry To: aik@au1.ibm.com, linuxppc-dev@lists.ozlabs.org From: Aravinda Prasad Date: Mon, 25 Aug 2014 18:30:10 +0530 Message-ID: <20140825130010.1029.65141.stgit@aravindap> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Cc: mahesh@linux.vnet.ibm.com, benh@au1.ibm.com, paulus@samba.org, "Nikunj A. Dadhania" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This patch adds a private HCALL to inform qemu the updated rtas-base and rtas-entry address when OS invokes the call "instantiate-rtas". This is required as qemu allocates the error reporting structure in RTAS space upon a machine check exception and hence needs to know the updated RTAS. Enhancements to qemu to handle the private HCALL, prepare error log and invoke machine check notification routine are in a separate patch. Signed-off-by: Nikunj A. Dadhania Signed-off-by: Aravinda Prasad --- board-qemu/slof/rtas.fs | 6 +++++- lib/libhvcall/hvcall.code | 6 ++++++ lib/libhvcall/hvcall.in | 1 + lib/libhvcall/libhvcall.h | 4 +++- 4 files changed, 15 insertions(+), 2 deletions(-) diff --git a/board-qemu/slof/rtas.fs b/board-qemu/slof/rtas.fs index 41e30c2..c081b57 100644 --- a/board-qemu/slof/rtas.fs +++ b/board-qemu/slof/rtas.fs @@ -174,7 +174,11 @@ rtas-node set-node : instantiate-rtas ( adr -- entry ) dup rtas-base swap rtas-size move - rtas-entry rtas-base - + + dup rtas-entry rtas-base - + + 2dup hv-rtas-update 0 <> IF + ." Failed to update RTAS " cr + THEN + nip ; device-end diff --git a/lib/libhvcall/hvcall.code b/lib/libhvcall/hvcall.code index 744469f..0ff50f2 100644 --- a/lib/libhvcall/hvcall.code +++ b/lib/libhvcall/hvcall.code @@ -111,6 +111,12 @@ PRIM(hv_X2d_cas) TOS.u = hv_cas(vec, buf, size); MIRP +PRIM(hv_X2d_rtas_X2d_update) + unsigned long rtas_entry = TOS.u; POP; + unsigned long rtas_base = TOS.u; + TOS.u = hv_generic(KVMPPC_H_RTAS_UPDATE, rtas_base, rtas_entry); +MIRP + PRIM(get_X2d_print_X2d_version) unsigned long addr = TOS.u; POP; get_print_banner(addr); diff --git a/lib/libhvcall/hvcall.in b/lib/libhvcall/hvcall.in index e99d6d1..4437b77 100644 --- a/lib/libhvcall/hvcall.in +++ b/lib/libhvcall/hvcall.in @@ -30,4 +30,5 @@ cod(RX!) cod(hv-logical-memop) cod(hv-cas) +cod(hv-rtas-update) cod(get-print-version) diff --git a/lib/libhvcall/libhvcall.h b/lib/libhvcall/libhvcall.h index 6356a62..193b738 100644 --- a/lib/libhvcall/libhvcall.h +++ b/lib/libhvcall/libhvcall.h @@ -24,7 +24,9 @@ #define KVMPPC_H_LOGICAL_MEMOP (KVMPPC_HCALL_BASE + 0x1) /* Client Architecture support */ #define KVMPPC_H_CAS (KVMPPC_HCALL_BASE + 0x2) -#define KVMPPC_HCALL_MAX KVMPPC_H_CAS +#define KVMPPC_H_RTAS_UPDATE (KVMPPC_HCALL_BASE + 0x3) +#define KVMPPC_H_REPORT_MC_ERR (KVMPPC_HCALL_BASE + 0x4) +#define KVMPPC_HCALL_MAX KVMPPC_H_NMI_MCE #ifndef __ASSEMBLY__