On Tue, Sep 26, 2017 at 1:08 PM, Mihail Abakumov
<mikhail.abaku...@ispras.ru> wrote:
> Signed-off-by: Mihail Abakumov <mikhail.abaku...@ispras.ru>
> Signed-off-by: Pavel Dovgalyuk <dovga...@ispras.ru>
> Signed-off-by: Dmitriy Koltunov <koltu...@ispras.ru>
> ---
> include/exec/windbgstub-utils.h | 1 +
> windbgstub-utils.c | 36 ++++++++++++++++++++++++++++++++++++
> windbgstub.c | 4 ++++
> 3 files changed, 41 insertions(+)
>
> diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h
> index ba001ddb42..d1a10c862e 100755
> --- a/include/exec/windbgstub-utils.h
> +++ b/include/exec/windbgstub-utils.h
> @@ -119,6 +119,7 @@ void kd_api_get_version(CPUState *cpu, PacketData *pd);
> void kd_api_read_msr(CPUState *cpu, PacketData *pd);
> void kd_api_write_msr(CPUState *cpu, PacketData *pd);
> void kd_api_search_memory(CPUState *cpu, PacketData *pd);
> +void kd_api_fill_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 2d3fbcc41c..3832e0b116 100755
> --- a/windbgstub-utils.c
> +++ b/windbgstub-utils.c
> @@ -1570,6 +1570,42 @@ void kd_api_search_memory(CPUState *cpu, PacketData
> *pd)
> pd->extra_size = 0;
> }
>
> +void kd_api_fill_memory(CPUState *cpu, PacketData *pd)
> +{
> + DBGKD_FILL_MEMORY *m64c = &pd->m64.u.FillMemory;
> +
> + uint32_t len = ldl_p(&m64c->Length);
> + target_ulong addr = ldq_p(&m64c->Address);
> + uint16_t pattern = ldl_p(&m64c->PatternLength);
> + uint16_t flags = ldl_p(&m64c->Flags);
> +
> + uint8_t mem[len];
Same as patch 41, break len into, say, page-sized regions and call
cpu_memory_rw_debug in a loop.
> + int i, err;
> + for (i = 0; i < len; ++i) {
> + mem[i] = pd->extra[i % pattern];
> + }
> +
> + switch (flags) {
> + case DBGKD_FILL_MEMORY_VIRTUAL:
> + err = cpu_memory_rw_debug(cpu, addr, mem, len, 1);
> + if (err) {
> + pd->m64.ReturnStatus = STATUS_UNSUCCESSFUL;
> + WINDBG_DEBUG("fill_memory: No physical page mapped: " FMT_ADDR,
> + addr);
> + }
> + break;
> +
> + case DBGKD_FILL_MEMORY_PHYSICAL:
> + cpu_physical_memory_rw(addr, mem, len, 1);
> + break;
> +
> + default:
> + break;
> + }
> +
> + pd->extra_size = 0;
> +}
> +
> void kd_api_unsupported(CPUState *cpu, PacketData *pd)
> {
> WINDBG_ERROR("Catched unimplemented api %s",
> diff --git a/windbgstub.c b/windbgstub.c
> index 7cff6bc514..b01ddcf009 100755
> --- a/windbgstub.c
> +++ b/windbgstub.c
> @@ -209,6 +209,10 @@ static void
> windbg_process_manipulate_packet(ParsingContext *ctx)
> kd_api_search_memory(cpu, &ctx->data);
> break;
>
> + case DbgKdFillMemoryApi:
> + kd_api_fill_memory(cpu, &ctx->data);
> + break;
> +
> default:
> kd_api_unsupported(cpu, &ctx->data);
> break;
>
