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[Qemu-devel] [PATCH 21/39] windbg: implement kd_api_read_virtual_memory
From: |
Mikhail Abakumov |
Subject: |
[Qemu-devel] [PATCH 21/39] windbg: implement kd_api_read_virtual_memory and kd_api_write_virtual_memory |
Date: |
Thu, 29 Nov 2018 17:29:28 +0300 |
User-agent: |
StGit/0.17.1-dirty |
Signed-off-by: Mikhail Abakumov <address@hidden>
Signed-off-by: Pavel Dovgalyuk <address@hidden>
---
include/exec/windbgstub-utils.h | 2 ++
windbgstub-utils.c | 47 +++++++++++++++++++++++++++++++++++++++
windbgstub.c | 8 +++++++
3 files changed, 57 insertions(+)
diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h
index 1c577ddd49..638b2b9a6f 100644
--- a/include/exec/windbgstub-utils.h
+++ b/include/exec/windbgstub-utils.h
@@ -67,6 +67,8 @@ typedef struct PacketData {
const char *kd_api_name(int id);
const char *kd_pkt_type_name(int id);
+void kd_api_read_virtual_memory(CPUState *cs, PacketData *pd);
+void kd_api_write_virtual_memory(CPUState *cs, PacketData *pd);
void kd_api_unsupported(CPUState *cs, PacketData *pd);
DBGKD_ANY_WAIT_STATE_CHANGE *kd_state_change_exc(CPUState *cs);
diff --git a/windbgstub-utils.c b/windbgstub-utils.c
index bbd95498f4..006101d8a1 100644
--- a/windbgstub-utils.c
+++ b/windbgstub-utils.c
@@ -197,6 +197,53 @@ InitedAddr windbg_search_vmaddr(CPUState *cs, target_ulong
start,
return ret;
}
+void kd_api_read_virtual_memory(CPUState *cs, PacketData *pd)
+{
+ DBGKD_READ_MEMORY64 *mem = &pd->m64.u.ReadMemory;
+ uint32_t len;
+ target_ulong addr;
+ int err;
+
+ len = MIN(ldl_p(&mem->TransferCount),
+ PACKET_MAX_SIZE - sizeof(DBGKD_MANIPULATE_STATE64));
+ addr = ldtul_p(&mem->TargetBaseAddress);
+ err = cpu_memory_rw_debug(cs, addr, pd->extra, len, 0);
+
+ if (err) {
+ len = 0;
+ pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
+
+ DPRINTF("read_virtual_memory: No physical page mapped: " FMT_ADDR "\n",
+ addr);
+ }
+
+ pd->extra_size = len;
+ stl_p(&mem->ActualBytesRead, len);
+}
+
+void kd_api_write_virtual_memory(CPUState *cs, PacketData *pd)
+{
+ DBGKD_WRITE_MEMORY64 *mem = &pd->m64.u.WriteMemory;
+ uint32_t len;
+ target_ulong addr;
+ int err;
+
+ len = MIN(ldl_p(&mem->TransferCount), pd->extra_size);
+ addr = ldtul_p(&mem->TargetBaseAddress);
+ err = cpu_memory_rw_debug(cs, addr, pd->extra, len, 1);
+
+ if (err) {
+ len = 0;
+ pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
+
+ DPRINTF("read_write_memory: No physical page mapped: " FMT_ADDR "\n",
+ addr);
+ }
+
+ pd->extra_size = 0;
+ stl_p(&mem->ActualBytesWritten, len);
+}
+
void kd_api_unsupported(CPUState *cs, PacketData *pd)
{
WINDBG_ERROR("Caught unimplemented api %s",
kd_api_name(pd->m64.ApiNumber));
diff --git a/windbgstub.c b/windbgstub.c
index 6ed93b8ce9..46400d9bad 100644
--- a/windbgstub.c
+++ b/windbgstub.c
@@ -149,6 +149,14 @@ static void windbg_process_manipulate_packet(WindbgState
*state)
}
switch (data->m64.ApiNumber) {
+ case DbgKdReadVirtualMemoryApi:
+ kd_api_read_virtual_memory(cs, data);
+ break;
+
+ case DbgKdWriteVirtualMemoryApi:
+ kd_api_write_virtual_memory(cs, data);
+ break;
+
default:
kd_api_unsupported(cs, data);
break;
- [Qemu-devel] [PATCH 11/39] windbg: add windbg_search_vmaddr, (continued)
- [Qemu-devel] [PATCH 11/39] windbg: add windbg_search_vmaddr, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 12/39] windbg: implement find_kdDebuggerDataBlock, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 13/39] windbg: parsing data stream, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 15/39] windbg: handler of parsing context, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 14/39] windbg: send data and control packets, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 16/39] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 17/39] windbg: generate ExceptionStateChange and LoadSymbolsStateChange, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 18/39] windbg: implement windbg_process_control_packet, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 20/39] windbg: implement windbg_process_manipulate_packet, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 19/39] windbg: implement windbg_process_data_packet, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 21/39] windbg: implement kd_api_read_virtual_memory and kd_api_write_virtual_memory,
Mikhail Abakumov <=
- [Qemu-devel] [PATCH 22/39] windbg: some kernel structures, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 23/39] windbg: add helper functions, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 24/39] windbg: [de]serialization cpu context, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 25/39] windbg: [de]serialization cpu spec registers, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 26/39] windbg: implement kd_api_get_context and kd_api_set_context, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 28/39] windbg: implement kd_api_read_control_space and kd_api_write_control_space, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 27/39] windbg: implement kd_api_get_context_ex and kd_api_set_context_ex, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 29/39] windbg: implement kd_api_write_breakpoint and kd_api_restore_breakpoint, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 30/39] windbg: debug exception subscribing, Mikhail Abakumov, 2018/11/29
- [Qemu-devel] [PATCH 31/39] windbg: implement kd_api_continue, Mikhail Abakumov, 2018/11/29