clear-pkgs-linux-iot-lts2018/0913-trusty-Add-VMM-PANIC-d...

67 lines
1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "Yan, Xiangyang" <xiangyangx.yan@intel.com>
Date: Wed, 11 Jan 2017 01:26:27 +0000
Subject: [PATCH] trusty: Add VMM PANIC dump data.
1. Increase the alloced size of dump data field to 4 page;
2. Kick off '\r' character in dump data which is outputted
from mon_vsprintf_s() in evmm code;
Change-Id: I255d97c2a7e898c8d4e1f15777ddd7f7c11af2b0
Tracked-On: OAM-34720
Signed-off-by: Yan, Xiangyang <xiangyangx.yan@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
---
drivers/trusty/trusty-log.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/trusty/trusty-log.c b/drivers/trusty/trusty-log.c
index a066481..8091a59 100644
--- a/drivers/trusty/trusty-log.c
+++ b/drivers/trusty/trusty-log.c
@@ -154,15 +154,28 @@ static void trusty_vmm_dump_header(struct deadloop_dump *dump)
static void trusty_vmm_dump_data(struct deadloop_dump *dump)
{
struct dump_data *dump_data;
- int i;
+ char *p, *pstr;
if (!dump)
return;
dump_data = &(dump->data);
- for (i = 0; i < dump_data->length; i++)
- pr_info("%c", dump_data->data[i]);
+ pstr = (char *)dump_data->data;
+ for (p = pstr; p < ((char *)dump_data->data + dump_data->length); p++) {
+ if (*p == '\r') {
+ *p = 0x00;
+ } else if (*p == '\n') {
+ *p = 0x00;
+ pr_info("%s\n", pstr);
+ pstr = (char *)(p + 1);
+ }
+ }
+ /* dump the characters in the last line */
+ if ((pstr - (char *)(dump_data->data)) < dump_data->length) {
+ *p = 0x00;
+ pr_info("%s\n", pstr);
+ }
}
static int trusty_vmm_panic_notify(struct notifier_block *nb,
@@ -287,7 +300,7 @@ static int trusty_log_probe(struct platform_device *pdev)
}
/* allocate debug buffer for vmm panic dump */
- g_vmm_debug_buf = get_zeroed_page(GFP_KERNEL);
+ g_vmm_debug_buf = __get_free_pages(GFP_KERNEL | __GFP_ZERO, 2);
if (!g_vmm_debug_buf) {
result = -ENOMEM;
goto error_alloc_vmm;
--
2.21.0