From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Alexey Kardashevskiy <aik@ozlabs.ru>, qemu-devel@nongnu.org
Cc: David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [Qemu-devel] [PATCH qemu] loader: Trace loaded images
Date: Thu, 13 Jun 2019 15:08:37 +0200 [thread overview]
Message-ID: <35361394-42ba-dcf0-6fe2-5a0a538d1440@redhat.com> (raw)
In-Reply-To: <20190613050937.124903-1-aik@ozlabs.ru>
Hi Alexey,
On 6/13/19 7:09 AM, Alexey Kardashevskiy wrote:
> This adds a trace point which prints every loaded image. This includes
> bios/firmware/kernel/initradmdisk/pcirom.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
>
> The example for a pseries guest:
>
> loader_write_rom slof.bin: @0x0 size=0xe22e0 ROM=0
> loader_write_rom phdr #0: /home/aik/t/vml4120le: @0x400000 size=0x13df000 ROM=0
> loader_write_rom /home/aik/t/le.cpio: @0x1ad0000 size=0x9463a00 ROM=0
I find the "ROM=0" part confuse, maybe you can change to "ROM:false".
Regardless:
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
>
> Sadly "spapr-rtas.bin" does not show up because it is loaded from
> the spapr machine reset handler rather than via rom_reset(), may be needs
> to be fixed.
>
> ---
> Makefile.objs | 1 +
> hw/core/loader.c | 3 +++
> hw/core/trace-events | 2 ++
> 3 files changed, 6 insertions(+)
> create mode 100644 hw/core/trace-events
>
> diff --git a/Makefile.objs b/Makefile.objs
> index c8337fa34be8..036ca6752908 100644
> --- a/Makefile.objs
> +++ b/Makefile.objs
> @@ -200,6 +200,7 @@ trace-events-subdirs += target/riscv
> trace-events-subdirs += target/s390x
> trace-events-subdirs += target/sparc
> trace-events-subdirs += util
> +trace-events-subdirs += hw/core
>
> trace-events-files = $(SRC_PATH)/trace-events $(trace-events-subdirs:%=$(SRC_PATH)/%/trace-events)
>
> diff --git a/hw/core/loader.c b/hw/core/loader.c
> index a097bbe30a74..7fe083af492f 100644
> --- a/hw/core/loader.c
> +++ b/hw/core/loader.c
> @@ -44,6 +44,7 @@
>
> #include "qemu/osdep.h"
> #include "qapi/error.h"
> +#include "trace.h"
> #include "hw/hw.h"
> #include "disas/disas.h"
> #include "monitor/monitor.h"
> @@ -1114,6 +1115,8 @@ static void rom_reset(void *unused)
> * CPU definitely fetches its instructions from the just written data.
> */
> cpu_flush_icache_range(rom->addr, rom->datasize);
> +
> + trace_loader_write_rom(rom->name, rom->addr, rom->datasize, rom->isrom);
> }
> }
>
> diff --git a/hw/core/trace-events b/hw/core/trace-events
> new file mode 100644
> index 000000000000..fe47a9c8cb1f
> --- /dev/null
> +++ b/hw/core/trace-events
> @@ -0,0 +1,2 @@
> +# loader.c
> +loader_write_rom(const char *name, uint64_t gpa, uint64_t size, bool isrom) "%s: @0x%"PRIx64" size=0x%"PRIx64" ROM=%d"
>
next prev parent reply other threads:[~2019-06-13 14:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 5:09 [Qemu-devel] [PATCH qemu] loader: Trace loaded images Alexey Kardashevskiy
2019-06-13 5:59 ` no-reply
2019-06-13 13:08 ` Philippe Mathieu-Daudé [this message]
2019-06-14 0:13 ` Alexey Kardashevskiy
2019-06-14 9:33 ` Stefan Hajnoczi
2019-06-14 10:10 ` Philippe Mathieu-Daudé
2019-06-28 9:21 ` Stefan Hajnoczi
2019-06-17 1:25 ` Alexey Kardashevskiy
2019-06-17 4:56 ` Philippe Mathieu-Daudé
2019-06-20 5:50 ` Alexey Kardashevskiy
2019-06-20 8:53 ` Philippe Mathieu-Daudé
2019-09-12 15:09 ` Philippe Mathieu-Daudé
2019-09-16 15:50 ` Stefan Hajnoczi
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