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From: Jan Kiszka <jan.kiszka@web.de>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Avi Kivity <avi@redhat.com>, kvm@vger.kernel.org, qemu-devel@nongnu.org
Subject: Re: [PATCH 04/15] Improve vm_stop reason declarations
Date: Wed, 09 Feb 2011 09:07:01 +0100	[thread overview]
Message-ID: <4D524B25.80907@web.de> (raw)
In-Reply-To: <20110208185932.GB13617@amt.cnet>

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On 2011-02-08 19:59, Marcelo Tosatti wrote:
> On Mon, Feb 07, 2011 at 12:19:15PM +0100, Jan Kiszka wrote:
>> index d6556c9..3397566 100644
>> --- a/gdbstub.c
>> +++ b/gdbstub.c
>> @@ -2194,14 +2194,14 @@ static void gdb_vm_state_change(void *opaque, int running, int reason)
>>      const char *type;
>>      int ret;
>>  
>> -    if (running || (reason != EXCP_DEBUG && reason != EXCP_INTERRUPT) ||
>> -        s->state == RS_INACTIVE || s->state == RS_SYSCALL)
>> +    if (running || (reason != VMSTOP_DEBUG && reason != VMSTOP_INTERRUPT) ||
>> +        s->state == RS_INACTIVE || s->state == RS_SYSCALL) {
>>          return;
> 
> What about VMSTOP_USER ?
> 
> VMSTOP_INTERRUPT -> "the VM is stopped by an interrupt".
> 
> VMSTOP_USER -> "the VM is stopped by the user".

Makes a lot of sense, will change.

> 
>> diff --git a/migration.c b/migration.c
>> index 3612572..20ea113 100644
>> --- a/migration.c
>> +++ b/migration.c
>> @@ -378,7 +378,7 @@ void migrate_fd_put_ready(void *opaque)
>>          int old_vm_running = vm_running;
>>  
>>          DPRINTF("done iterating\n");
>> -        vm_stop(0);
>> +        vm_stop(VMSTOP_RWSTATE);
> 
> VMSTOP_RWSTATE is cryptic. What about VMSTOP_SAVEVM, MIGRATE, etc.

Both alternatives are not completely accurate as we also stop of vmload.
What about VMSTOP_SYNC_STATE or UPDATE_STATE?

Jan


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WARNING: multiple messages have this Message-ID (diff)
From: Jan Kiszka <jan.kiszka@web.de>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Avi Kivity <avi@redhat.com>, kvm@vger.kernel.org, qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: [PATCH 04/15] Improve vm_stop reason declarations
Date: Wed, 09 Feb 2011 09:07:01 +0100	[thread overview]
Message-ID: <4D524B25.80907@web.de> (raw)
In-Reply-To: <20110208185932.GB13617@amt.cnet>

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On 2011-02-08 19:59, Marcelo Tosatti wrote:
> On Mon, Feb 07, 2011 at 12:19:15PM +0100, Jan Kiszka wrote:
>> index d6556c9..3397566 100644
>> --- a/gdbstub.c
>> +++ b/gdbstub.c
>> @@ -2194,14 +2194,14 @@ static void gdb_vm_state_change(void *opaque, int running, int reason)
>>      const char *type;
>>      int ret;
>>  
>> -    if (running || (reason != EXCP_DEBUG && reason != EXCP_INTERRUPT) ||
>> -        s->state == RS_INACTIVE || s->state == RS_SYSCALL)
>> +    if (running || (reason != VMSTOP_DEBUG && reason != VMSTOP_INTERRUPT) ||
>> +        s->state == RS_INACTIVE || s->state == RS_SYSCALL) {
>>          return;
> 
> What about VMSTOP_USER ?
> 
> VMSTOP_INTERRUPT -> "the VM is stopped by an interrupt".
> 
> VMSTOP_USER -> "the VM is stopped by the user".

Makes a lot of sense, will change.

> 
>> diff --git a/migration.c b/migration.c
>> index 3612572..20ea113 100644
>> --- a/migration.c
>> +++ b/migration.c
>> @@ -378,7 +378,7 @@ void migrate_fd_put_ready(void *opaque)
>>          int old_vm_running = vm_running;
>>  
>>          DPRINTF("done iterating\n");
>> -        vm_stop(0);
>> +        vm_stop(VMSTOP_RWSTATE);
> 
> VMSTOP_RWSTATE is cryptic. What about VMSTOP_SAVEVM, MIGRATE, etc.

Both alternatives are not completely accurate as we also stop of vmload.
What about VMSTOP_SYNC_STATE or UPDATE_STATE?

Jan


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  reply	other threads:[~2011-02-09  8:07 UTC|newest]

Thread overview: 90+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-07 11:19 [PATCH 00/15] [uq/master] Patch queue, part III Jan Kiszka
2011-02-07 11:19 ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 01/15] Refactor kvm&tcg function names in cpus.c Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 02/15] Refactor cpu_has_work/any_cpu_has_work " Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-08 18:50   ` Marcelo Tosatti
2011-02-08 18:50     ` [Qemu-devel] " Marcelo Tosatti
2011-02-09  8:07     ` Jan Kiszka
2011-02-09  8:07       ` [Qemu-devel] " Jan Kiszka
2011-02-09 13:54       ` Marcelo Tosatti
2011-02-09 13:54         ` [Qemu-devel] " Marcelo Tosatti
2011-02-09 15:29   ` [PATCH v2 " Jan Kiszka
2011-02-09 15:29     ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 03/15] Fix a few coding style violations " Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 04/15] Improve vm_stop reason declarations Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-08 18:59   ` Marcelo Tosatti
2011-02-08 18:59     ` [Qemu-devel] " Marcelo Tosatti
2011-02-09  8:07     ` Jan Kiszka [this message]
2011-02-09  8:07       ` Jan Kiszka
2011-02-09 14:17       ` Marcelo Tosatti
2011-02-09 14:17         ` [Qemu-devel] " Marcelo Tosatti
2011-02-09 14:51         ` Jan Kiszka
2011-02-09 14:51           ` [Qemu-devel] " Jan Kiszka
2011-02-09 15:29   ` [PATCH v2 " Jan Kiszka
2011-02-09 15:29     ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 05/15] Refactor debug and vmstop request interface Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 06/15] Move debug exception handling out of cpu_exec Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 07/15] kvm: Separate TCG from KVM cpu execution Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-08 23:39   ` Marcelo Tosatti
2011-02-08 23:39     ` [Qemu-devel] " Marcelo Tosatti
2011-02-09  7:59     ` Jan Kiszka
2011-02-09  7:59       ` [Qemu-devel] " Jan Kiszka
2011-02-09 14:44       ` Marcelo Tosatti
2011-02-09 14:44         ` [Qemu-devel] " Marcelo Tosatti
2011-02-09 14:53         ` Jan Kiszka
2011-02-09 14:53           ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 08/15] kvm: x86: Prepare VCPU loop for in-kernel irqchip Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 09/15] kvm: Drop return values from kvm_arch_pre/post_run Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 12:54   ` Alexander Graf
2011-02-07 12:54     ` [Qemu-devel] " Alexander Graf
2011-02-17 21:01   ` [PATCH] kvm: ppc: Fix breakage of kvm_arch_pre_run/process_irqchip_events Jan Kiszka
2011-02-17 21:01     ` [Qemu-devel] " Jan Kiszka
2011-03-11  5:55     ` Alexander Graf
2011-03-11  5:55       ` [Qemu-devel] " Alexander Graf
2011-03-11  6:26       ` Stefan Hajnoczi
2011-03-11  6:26         ` [Qemu-devel] " Stefan Hajnoczi
2011-03-11  7:02         ` Alexander Graf
2011-03-11  7:02           ` [Qemu-devel] " Alexander Graf
2011-02-07 11:19 ` [PATCH 10/15] kvm: x86: Catch and report failing IRQ and NMI injections Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 11/15] kvm: Remove unneeded memory slot reservation Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 15:26   ` Alex Williamson
2011-02-07 15:26     ` [Qemu-devel] " Alex Williamson
2011-02-07 11:19 ` [PATCH 12/15] Introduce log_start/log_stop in CPUPhysMemoryClient Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 13/15] cirrus: Remove obsolete kvm.h include Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 14/15] kvm: Make kvm_state globally available Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 11:19 ` [PATCH 15/15] kvm: x86: Introduce kvmclock device to save/restore its state Jan Kiszka
2011-02-07 11:19   ` [Qemu-devel] " Jan Kiszka
2011-02-07 12:27   ` Glauber Costa
2011-02-07 12:27     ` [Qemu-devel] " Glauber Costa
2011-02-07 12:36     ` Jan Kiszka
2011-02-07 12:36       ` [Qemu-devel] " Jan Kiszka
2011-02-07 13:40       ` Glauber Costa
2011-02-07 13:40         ` [Qemu-devel] " Glauber Costa
2011-02-07 14:03         ` Jan Kiszka
2011-02-07 14:03           ` [Qemu-devel] " Jan Kiszka
2011-02-07 18:04           ` Glauber Costa
2011-02-07 18:04             ` [Qemu-devel] " Glauber Costa
2011-02-07 18:12             ` Jan Kiszka
2011-02-07 18:12               ` [Qemu-devel] " Jan Kiszka
2011-02-07 18:26               ` Glauber Costa
2011-02-07 18:26                 ` [Qemu-devel] " Glauber Costa
2011-02-07 12:44     ` Avi Kivity
2011-02-07 12:44       ` [Qemu-devel] " Avi Kivity
2011-02-07 19:39   ` [Qemu-devel] " Blue Swirl
2011-02-07 19:39     ` Blue Swirl
2011-02-07 21:48     ` Jan Kiszka
2011-02-07 21:48       ` Jan Kiszka

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