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[Qemu-devel] [PATCH 22/43] windbg: implemented kd_api_read_virtual_memor
From: |
Mihail Abakumov |
Subject: |
[Qemu-devel] [PATCH 22/43] windbg: implemented kd_api_read_virtual_memory and kd_api_read_virtual_memory |
Date: |
Tue, 26 Sep 2017 14:06:09 +0300 |
User-agent: |
StGit/0.17.1-dirty |
Signed-off-by: Mihail Abakumov <address@hidden>
Signed-off-by: Pavel Dovgalyuk <address@hidden>
Signed-off-by: Dmitriy Koltunov <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 ca21af7c91..c1ff1cec57 100755
--- a/include/exec/windbgstub-utils.h
+++ b/include/exec/windbgstub-utils.h
@@ -102,6 +102,8 @@ typedef struct SizedBuf {
buf.size = 0; \
} while (false)
+void kd_api_read_virtual_memory(CPUState *cpu, PacketData *pd);
+void kd_api_write_virtual_memory(CPUState *cpu, PacketData *pd);
void kd_api_unsupported(CPUState *cpu, PacketData *pd);
SizedBuf kd_gen_exception_sc(CPUState *cpu);
diff --git a/windbgstub-utils.c b/windbgstub-utils.c
index e7b381f829..1bde60a1e9 100755
--- a/windbgstub-utils.c
+++ b/windbgstub-utils.c
@@ -30,6 +30,53 @@ typedef struct KDData {
static KDData *kd;
+void kd_api_read_virtual_memory(CPUState *cpu, 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 - M64_SIZE);
+ addr = ldtul_p(&mem->TargetBaseAddress);
+ err = cpu_memory_rw_debug(cpu, addr, pd->extra, len, 0);
+
+ if (!err) {
+ pd->extra_size = len;
+ mem->ActualBytesRead = ldl_p(&len);
+ } else {
+ pd->extra_size = 0;
+ mem->ActualBytesRead = 0;
+ pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
+
+ WINDBG_DEBUG("read_virtual_memory: No physical page mapped: " FMT_ADDR,
+ (target_ulong) mem->TargetBaseAddress);
+ }
+}
+
+void kd_api_write_virtual_memory(CPUState *cpu, 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(cpu, addr, pd->extra, len, 1);
+
+ pd->extra_size = 0;
+ if (!err) {
+ mem->ActualBytesWritten = ldl_p(&len);
+ } else {
+ mem->ActualBytesWritten = 0;
+ pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
+
+ WINDBG_DEBUG("read_write_memory: No physical page mapped: " FMT_ADDR,
+ (target_ulong) mem->TargetBaseAddress);
+ }
+}
+
void kd_api_unsupported(CPUState *cpu, PacketData *pd)
{
WINDBG_ERROR("Catched unimplemented api %s",
diff --git a/windbgstub.c b/windbgstub.c
index 50b4ef0dea..327fe83f70 100755
--- a/windbgstub.c
+++ b/windbgstub.c
@@ -133,6 +133,14 @@ static void
windbg_process_manipulate_packet(ParsingContext *ctx)
switch (ctx->data.m64.ApiNumber) {
+ case DbgKdReadVirtualMemoryApi:
+ kd_api_read_virtual_memory(cpu, &ctx->data);
+ break;
+
+ case DbgKdWriteVirtualMemoryApi:
+ kd_api_write_virtual_memory(cpu, &ctx->data);
+ break;
+
default:
kd_api_unsupported(cpu, &ctx->data);
break;
- [Qemu-devel] [PATCH 13/43] windbg: handler of parsing context, (continued)
- [Qemu-devel] [PATCH 13/43] windbg: handler of parsing context, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 11/43] windbg: parsing data stream, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 14/43] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 15/43] windbg: sized data buffer, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 16/43] windbg: generate ExceptionStateChange, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 17/43] windbg: generate LoadSymbolsStateChange, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 18/43] windbg: windbg_vm_stop, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 19/43] windbg: implemented windbg_process_control_packet, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 20/43] windbg: implemented windbg_process_data_packet, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 21/43] windbg: implemented windbg_process_manipulate_packet, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 22/43] windbg: implemented kd_api_read_virtual_memory and kd_api_read_virtual_memory,
Mihail Abakumov <=
- [Qemu-devel] [PATCH 23/43] windbg: kernel's structures, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 24/43] windbg: implemented kd_api_get_context and kd_api_set_context, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 25/43] windbg: implemented kd_api_read_control_space and kd_api_write_control_space, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 26/43] windbg: implemented windbg_read_context, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 28/43] windbg: implemented windbg_read_ks_regs, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 27/43] windbg: implemented windbg_write_context, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 29/43] windbg: implemented windbg_write_ks_regs, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 30/43] windbg: implemented windbg_set_sr, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 31/43] windbg: implemented windbg_set_dr, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 32/43] windbg: implemented windbg_set_dr7, Mihail Abakumov, 2017/09/26