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[Qemu-devel] [PATCH for-4.0 2/3] monitor: Use address_space_read() to re
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH for-4.0 2/3] monitor: Use address_space_read() to read memory |
Date: |
Thu, 22 Nov 2018 11:29:46 +0000 |
Currently monitor.c reads physical memory using
cpu_physical_memory_read(). This effectively hard-codes
assuming that all CPUs have the same view of physical
memory. Switch to address_space_read() instead, which
lets us use the AddressSpace for the CPU we're
reading memory for (falling back to address_space_memory
if there is no CPU, as happens with the "none" board).
As a bonus, this allows us to detect failures to read memory.
Signed-off-by: Peter Maydell <address@hidden>
---
monitor.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/monitor.c b/monitor.c
index d39390c2f2f..b0e8f2c490a 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1604,7 +1604,13 @@ static void memory_dump(Monitor *mon, int count, int
format, int wsize,
if (l > line_size)
l = line_size;
if (is_physical) {
- cpu_physical_memory_read(addr, buf, l);
+ AddressSpace *as = cs ? cs->as : &address_space_memory;
+ MemTxResult r = address_space_read(as, addr,
+ MEMTXATTRS_UNSPECIFIED, buf, l);
+ if (r != MEMTX_OK) {
+ monitor_printf(mon, " Cannot access memory\n");
+ break;
+ }
} else {
if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
monitor_printf(mon, " Cannot access memory\n");
--
2.19.1