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[Qemu-devel] [PATCH v2 22/43] windbg: implemented kd_api_read_virtual_me
From: |
Mihail Abakumov |
Subject: |
[Qemu-devel] [PATCH v2 22/43] windbg: implemented kd_api_read_virtual_memory and kd_api_write_virtual_memory |
Date: |
Tue, 17 Oct 2017 16:10:54 +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 01f115f091..552318ad05 100755
--- a/include/exec/windbgstub-utils.h
+++ b/include/exec/windbgstub-utils.h
@@ -93,6 +93,8 @@ typedef struct SizedBuf {
InitedAddr *windbg_get_KPCR(void);
InitedAddr *windbg_get_version(void);
+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 501a7435df..c363d905af 100755
--- a/windbgstub-utils.c
+++ b/windbgstub-utils.c
@@ -24,6 +24,53 @@ InitedAddr *windbg_get_version(void)
return &version;
}
+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 - sizeof(DBGKD_MANIPULATE_STATE64));
+ addr = ldtul_p(&mem->TargetBaseAddress);
+ err = cpu_memory_rw_debug(cpu, addr, pd->extra, len, 0);
+
+ if (err) {
+ len = 0;
+ pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
+
+ WINDBG_DEBUG("read_virtual_memory: No physical page mapped: " FMT_ADDR,
+ (target_ulong) mem->TargetBaseAddress);
+ }
+
+ pd->extra_size = len;
+ stl_p(&mem->ActualBytesRead, len);
+}
+
+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);
+
+ if (err) {
+ len = 0;
+ pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
+
+ WINDBG_DEBUG("read_write_memory: No physical page mapped: " FMT_ADDR,
+ (target_ulong) mem->TargetBaseAddress);
+ }
+
+ pd->extra_size = 0;
+ stl_p(&mem->ActualBytesWritten, len);
+}
+
void kd_api_unsupported(CPUState *cpu, PacketData *pd)
{
WINDBG_ERROR("Caught unimplemented api %s",
diff --git a/windbgstub.c b/windbgstub.c
index 2467d2d247..1725107722 100755
--- a/windbgstub.c
+++ b/windbgstub.c
@@ -140,6 +140,14 @@ 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 v2 12/43] windbg: send data and control packets, (continued)
- [Qemu-devel] [PATCH v2 12/43] windbg: send data and control packets, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 14/43] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 13/43] windbg: handler of parsing context, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 15/43] windbg: sized data buffer, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 16/43] windbg: generate ExceptionStateChange, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 17/43] windbg: generate LoadSymbolsStateChange, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 18/43] windbg: windbg_vm_stop, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 19/43] windbg: implemented windbg_process_control_packet, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 21/43] windbg: implemented windbg_process_manipulate_packet, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 20/43] windbg: implemented windbg_process_data_packet, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 22/43] windbg: implemented kd_api_read_virtual_memory and kd_api_write_virtual_memory,
Mihail Abakumov <=
- [Qemu-devel] [PATCH v2 23/43] windbg: kernel's structures, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 24/43] windbg: implemented kd_api_get_context and kd_api_set_context, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 25/43] windbg: implemented kd_api_read_control_space and kd_api_write_control_space, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 26/43] windbg: implemented windbg_read_context, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 27/43] windbg: implemented windbg_write_context, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 28/43] windbg: implemented windbg_read_ks_regs, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 29/43] windbg: implemented windbg_write_ks_regs, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 30/43] windbg: implemented windbg_set_sr, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 31/43] windbg: implemented windbg_set_dr, Mihail Abakumov, 2017/10/17
- [Qemu-devel] [PATCH v2 32/43] windbg: implemented windbg_set_dr7, Mihail Abakumov, 2017/10/17