From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53964) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlumA-00076F-NA for qemu-devel@nongnu.org; Wed, 05 Nov 2014 02:13:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xlum1-0001Pp-Rb for qemu-devel@nongnu.org; Wed, 05 Nov 2014 02:13:06 -0500 Received: from e38.co.us.ibm.com ([32.97.110.159]:44125) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xlum1-0001PX-IV for qemu-devel@nongnu.org; Wed, 05 Nov 2014 02:12:57 -0500 Received: from /spool/local by e38.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 5 Nov 2014 00:12:56 -0700 From: Aravinda Prasad Date: Wed, 05 Nov 2014 12:42:50 +0530 Message-ID: <20141105071250.26196.76240.stgit@aravindap> In-Reply-To: <20141105071019.26196.93729.stgit@aravindap> References: <20141105071019.26196.93729.stgit@aravindap> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH v3 2/4] target-ppc: Register and handle HCALL to receive updated RTAS region List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: aik@au1.ibm.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org Cc: benh@au1.ibm.com, paulus@samba.org Receive updates from SLOF about the updated rtas-base. A separate patch for SLOF [1] adds functionality to invoke a private HCALL whenever OS issues instantiate-rtas with a new rtas-base. This is required as qemu needs to know the updated rtas-base as it allocates error reporting structure in RTAS space upon a machine check exception. [1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-August/120386.html Signed-off-by: Aravinda Prasad --- hw/ppc/spapr_hcall.c | 8 ++++++++ include/hw/ppc/spapr.h | 3 ++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 8651447..01650ba 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -579,6 +579,13 @@ static target_ulong h_rtas(PowerPCCPU *cpu, sPAPREnvironment *spapr, nret, rtas_r3 + 12 + 4*nargs); } +static target_ulong h_rtas_update(PowerPCCPU *cpu, sPAPREnvironment *spapr, + target_ulong opcode, target_ulong *args) +{ + spapr->rtas_addr = args[0]; + return 0; +} + static target_ulong h_logical_load(PowerPCCPU *cpu, sPAPREnvironment *spapr, target_ulong opcode, target_ulong *args) { @@ -1003,6 +1010,7 @@ static void hypercall_register_types(void) /* qemu/KVM-PPC specific hcalls */ spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas); + spapr_register_hypercall(KVMPPC_H_RTAS_UPDATE, h_rtas_update); spapr_register_hypercall(H_SET_MODE, h_set_mode); diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index d08fcc2..ccf67ba 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -308,7 +308,8 @@ typedef struct sPAPREnvironment { #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_HCALL_MAX KVMPPC_H_RTAS_UPDATE extern sPAPREnvironment *spapr;