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Re: [Qemu-devel] [PATCH 12/18] Insert event_tap_mmio() to cpu_physical_m
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [PATCH 12/18] Insert event_tap_mmio() to cpu_physical_memory_rw() in exec.c. |
Date: |
Mon, 25 Apr 2011 13:46:34 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2011-04-25 13:00, OHMURA Kei wrote:
> From: Yoshiaki Tamura <address@hidden>
>
> Record mmio write event to replay it upon failover.
>
> Signed-off-by: Yoshiaki Tamura <address@hidden>
> Signed-off-by: OHMURA Kei <address@hidden>
> ---
> exec.c | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index c3dc68a..3c3cece 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -33,6 +33,7 @@
> #include "osdep.h"
> #include "kvm.h"
> #include "qemu-timer.h"
> +#include "event-tap.h"
> #if defined(CONFIG_USER_ONLY)
> #include <qemu.h>
> #include <signal.h>
> @@ -3736,6 +3737,9 @@ void cpu_physical_memory_rw(target_phys_addr_t addr,
> uint8_t *buf,
> io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
> if (p)
> addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset;
> +
> + event_tap_mmio(addr, buf, len);
> +
You know that this is incomplete? A few devices are calling st*_phys
directly, specifically virtio.
What kind of mmio should be traced here, device or CPU originated? Or both?
Jan
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- [Qemu-devel] [PATCH 00/18] Kemari for KVM v0.2.14, OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 05/18] vl.c: add deleted flag for deleting the handler., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 11/18] ioport: insert event_tap_ioport() to ioport_write()., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 13/18] net: insert event-tap to qemu_send_packet() and qemu_sendv_packet_async()., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 08/18] savevm: introduce util functions to control ft_trans_file from savevm layer., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 06/18] virtio: decrement last_avail_idx with inuse before saving., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 15/18] savevm: introduce qemu_savevm_trans_{begin, commit}., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 17/18] migration-tcp: modify tcp_accept_incoming_migration() to handle ft_mode, and add a hack not to close fd when ft_mode is enabled., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 03/18] Introduce qemu_loadvm_state_no_header() and make qemu_loadvm_state() a wrapper., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 12/18] Insert event_tap_mmio() to cpu_physical_memory_rw() in exec.c., OHMURA Kei, 2011/04/25
- Re: [Qemu-devel] [PATCH 12/18] Insert event_tap_mmio() to cpu_physical_memory_rw() in exec.c.,
Jan Kiszka <=
- [Qemu-devel] [PATCH 18/18] Introduce "kemari:" to enable FT migration mode (Kemari)., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 10/18] Call init handler of event-tap at main() in vl.c., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 02/18] Introduce read() to FdMigrationState., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 16/18] migration: introduce migrate_ft_trans_{put, get}_ready(), and modify migrate_fd_put_ready() when ft_mode is on., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 07/18] Introduce fault tolerant VM transaction QEMUFile and ft_mode., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 01/18] Make QEMUFile buf expandable, and introduce qemu_realloc_buffer() and qemu_clear_buffer()., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 04/18] qemu-char: export socket_set_nodelay()., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 09/18] Introduce event-tap., OHMURA Kei, 2011/04/25
- [Qemu-devel] [PATCH 14/18] block: insert event-tap to bdrv_aio_writev(), bdrv_aio_flush() and bdrv_flush()., OHMURA Kei, 2011/04/25