A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 12:58:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

Minidump: Dump only accessible pages data

Browse source 
Check for accessible pages, before capturing the
page context, while dumping pointer data, for
CPU registers.

Change-Id: If7f38f0e3cb12e5c0ad85f8ed3140ce098108f62
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
This commit is contained in:
Neeraj Upadhyay 2020-07-30 16:05:44 +05:30
commit b6e6912193
1 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
drivers/soc/qcom/minidump_log.c
View file

@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/thread_info.h>
#include <soc/qcom/minidump.h>
#include <soc/qcom/secure_buffer.h>
#include <asm/page.h>
#include <asm/memory.h>
#include <asm/sections.h>
@ -830,10 +831,14 @@ static void md_dump_data(unsigned long addr, int nbytes, const char *name)
for (j = 0; j < 8; j++) {
u32 data;
if (probe_kernel_address(p, data))
seq_buf_printf(md_cntxt_seq_buf, " ********");
if (__is_lm_address(p) &&
kern_addr_valid((unsigned long)p) &&
page_accessible(page_to_pfn(virt_to_page(p))) &&
!probe_kernel_address(p, data))
seq_buf_printf(md_cntxt_seq_buf, " %08x",
data);
else
seq_buf_printf(md_cntxt_seq_buf, " %08x", data);
seq_buf_printf(md_cntxt_seq_buf, " ********");
++p;
}
seq_buf_printf(md_cntxt_seq_buf, "\n");