[Qemu-devel] [PATCH v2 1/4] target-ppc: Extend rtas-blob

From: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
To: aik@au1.ibm.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Cc: benh@au1.ibm.com, paulus@samba.org
Subject: [Qemu-devel] [PATCH v2 1/4] target-ppc: Extend rtas-blob
Date: Thu, 04 Sep 2014 16:43:28 +0530	[thread overview]
Message-ID: <20140904111328.20476.51234.stgit@aravindap> (raw)
In-Reply-To: <20140904111153.20476.58429.stgit@aravindap>

Extend rtas-blob to accommodate error log. Error log
structure is saved in rtas space upon a machine check
exception.

Signed-off-by: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
---
 hw/ppc/spapr.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 4b20e36..4a7c0ae 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1409,6 +1409,10 @@ static void ppc_spapr_init(MachineState *machine)
 
     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin");
     spapr->rtas_size = get_image_size(filename);
+
+    /* Resize blob to accommodate error log at a page aligned address */
+    spapr->rtas_size = TARGET_PAGE_ALIGN(spapr->rtas_size) + TARGET_PAGE_SIZE;
+
     spapr->rtas_blob = g_malloc(spapr->rtas_size);
     if (load_image_size(filename, spapr->rtas_blob, spapr->rtas_size) < 0) {
         hw_error("qemu: could not load LPAR rtas '%s'\n", filename);
