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[Qemu-devel] [PATCH 04/51] memsave: Improve and disambiguate error messa
From: |
Michael Tokarev |
Subject: |
[Qemu-devel] [PATCH 04/51] memsave: Improve and disambiguate error message |
Date: |
Fri, 6 Mar 2015 23:18:47 +0300 |
From: Borislav Petkov <address@hidden>
When requesting a size which cannot be read, the error message shows
a different address which is misleading to the user and it looks like
something's wrong with the address parsing. This is because the input
@addr variable is incremented in the memory dumping loop:
(qemu) memsave 0xffffffff8418069c 0xb00000 mem
Invalid addr 0xffffffff849ffe9c specified
Fix that by saving the original address and size and use them in the
error message:
(qemu) memsave 0xffffffff8418069c 0xb00000 mem
Invalid addr 0xffffffff8418069c/size 11534336 specified
Signed-off-by: Borislav Petkov <address@hidden>
Signed-off-by: Michael Tokarev <address@hidden>
---
cpus.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/cpus.c b/cpus.c
index 0fac143..1ce90a1 100644
--- a/cpus.c
+++ b/cpus.c
@@ -1474,6 +1474,7 @@ void qmp_memsave(int64_t addr, int64_t size, const char
*filename,
uint32_t l;
CPUState *cpu;
uint8_t buf[1024];
+ int64_t orig_addr = addr, orig_size = size;
if (!has_cpu) {
cpu_index = 0;
@@ -1497,7 +1498,8 @@ void qmp_memsave(int64_t addr, int64_t size, const char
*filename,
if (l > size)
l = size;
if (cpu_memory_rw_debug(cpu, addr, buf, l, 0) != 0) {
- error_setg(errp, "Invalid addr 0x%016" PRIx64 "specified", addr);
+ error_setg(errp, "Invalid addr 0x%016" PRIx64 "/size %" PRId64
+ " specified", orig_addr, orig_size);
goto exit;
}
if (fwrite(buf, 1, l, f) != l) {
--
2.1.4
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