Re: [Qemu-devel] [PATCH 02/16] vl: set default ram_size during variable initialization

2013-09-09 Thread Igor Mammedov
On Fri, 02 Aug 2013 22:33:24 +0200
Andreas Färber afaer...@suse.de wrote:

 Am 23.07.2013 18:22, schrieb Igor Mammedov:
  Signed-off-by: Igor Mammedov imamm...@redhat.com
  ---
   vl.c |7 +--
   1 files changed, 1 insertions(+), 6 deletions(-)
  
  diff --git a/vl.c b/vl.c
  index 8190504..bf0c658 100644
  --- a/vl.c
  +++ b/vl.c
  @@ -2947,7 +2947,7 @@ int main(int argc, char **argv, char **envp)
   module_call_init(MODULE_INIT_MACHINE);
   machine = find_default_machine();
   cpu_model = NULL;
  -ram_size = 0;
  +ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
   snapshot = 0;
   cyls = heads = secs = 0;
   translation = BIOS_ATA_TRANSLATION_AUTO;
  @@ -4064,11 +4064,6 @@ int main(int argc, char **argv, char **envp)
   exit(1);
   }
   
  -/* init the memory */
  -if (ram_size == 0) {
  -ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
  -}
  -
   if (qemu_opts_foreach(qemu_find_opts(device), device_help_func, 
  NULL, 0)
   != 0) {
   exit(0);
 
 Commit message doesn't give any explanation why?
it was intended as cleanup

 
 What happens with -m 0? My guess is the old code translates that to the
 default size, where by intializing the default earlier it would stay.
patch is broken in this aspect. It aborts on start up with -m 0

The question is if -m 0 is correct value, perhaps QEMU should exit with
error message in this case, instead of silent fallback to default?

 
 Andreas
 




Re: [Qemu-devel] [PATCH 02/16] vl: set default ram_size during variable initialization

2013-09-09 Thread Paolo Bonzini
Il 09/09/2013 16:06, Igor Mammedov ha scritto:
 On Fri, 02 Aug 2013 22:33:24 +0200
 Andreas Färber afaer...@suse.de wrote:
 
 Am 23.07.2013 18:22, schrieb Igor Mammedov:
 Signed-off-by: Igor Mammedov imamm...@redhat.com
 ---
  vl.c |7 +--
  1 files changed, 1 insertions(+), 6 deletions(-)

 diff --git a/vl.c b/vl.c
 index 8190504..bf0c658 100644
 --- a/vl.c
 +++ b/vl.c
 @@ -2947,7 +2947,7 @@ int main(int argc, char **argv, char **envp)
  module_call_init(MODULE_INIT_MACHINE);
  machine = find_default_machine();
  cpu_model = NULL;
 -ram_size = 0;
 +ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
  snapshot = 0;
  cyls = heads = secs = 0;
  translation = BIOS_ATA_TRANSLATION_AUTO;
 @@ -4064,11 +4064,6 @@ int main(int argc, char **argv, char **envp)
  exit(1);
  }
  
 -/* init the memory */
 -if (ram_size == 0) {
 -ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
 -}
 -
  if (qemu_opts_foreach(qemu_find_opts(device), device_help_func, 
 NULL, 0)
  != 0) {
  exit(0);

 Commit message doesn't give any explanation why?
 it was intended as cleanup
 

 What happens with -m 0? My guess is the old code translates that to the
 default size, where by intializing the default earlier it would stay.
 patch is broken in this aspect. It aborts on start up with -m 0
 
 The question is if -m 0 is correct value, perhaps QEMU should exit with
 error message in this case, instead of silent fallback to default?

I guess we have to keep it for backwards compatibility.

Paolo




Re: [Qemu-devel] [PATCH 02/16] vl: set default ram_size during variable initialization

2013-09-09 Thread Igor Mammedov
On Mon, 09 Sep 2013 16:31:03 +0200
Paolo Bonzini pbonz...@redhat.com wrote:

 Il 09/09/2013 16:06, Igor Mammedov ha scritto:
  On Fri, 02 Aug 2013 22:33:24 +0200
  Andreas Färber afaer...@suse.de wrote:
  
  Am 23.07.2013 18:22, schrieb Igor Mammedov:
  Signed-off-by: Igor Mammedov imamm...@redhat.com
  ---
   vl.c |7 +--
   1 files changed, 1 insertions(+), 6 deletions(-)
 
  diff --git a/vl.c b/vl.c
  index 8190504..bf0c658 100644
  --- a/vl.c
  +++ b/vl.c
  @@ -2947,7 +2947,7 @@ int main(int argc, char **argv, char **envp)
   module_call_init(MODULE_INIT_MACHINE);
   machine = find_default_machine();
   cpu_model = NULL;
  -ram_size = 0;
  +ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
   snapshot = 0;
   cyls = heads = secs = 0;
   translation = BIOS_ATA_TRANSLATION_AUTO;
  @@ -4064,11 +4064,6 @@ int main(int argc, char **argv, char **envp)
   exit(1);
   }
   
  -/* init the memory */
  -if (ram_size == 0) {
  -ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
  -}
  -
   if (qemu_opts_foreach(qemu_find_opts(device), device_help_func, 
  NULL, 0)
   != 0) {
   exit(0);
 
  Commit message doesn't give any explanation why?
  it was intended as cleanup
  
 
  What happens with -m 0? My guess is the old code translates that to the
  default size, where by intializing the default earlier it would stay.
  patch is broken in this aspect. It aborts on start up with -m 0
  
  The question is if -m 0 is correct value, perhaps QEMU should exit with
  error message in this case, instead of silent fallback to default?
 
 I guess we have to keep it for backwards compatibility.
I could swap this patch with 3/16 and add -m 0 compat logic there. Then
it would be ok to move default to initialization time + cleanup.

 
 Paolo
 
 




Re: [Qemu-devel] [PATCH 02/16] vl: set default ram_size during variable initialization

2013-08-02 Thread Andreas Färber
Am 23.07.2013 18:22, schrieb Igor Mammedov:
 Signed-off-by: Igor Mammedov imamm...@redhat.com
 ---
  vl.c |7 +--
  1 files changed, 1 insertions(+), 6 deletions(-)
 
 diff --git a/vl.c b/vl.c
 index 8190504..bf0c658 100644
 --- a/vl.c
 +++ b/vl.c
 @@ -2947,7 +2947,7 @@ int main(int argc, char **argv, char **envp)
  module_call_init(MODULE_INIT_MACHINE);
  machine = find_default_machine();
  cpu_model = NULL;
 -ram_size = 0;
 +ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
  snapshot = 0;
  cyls = heads = secs = 0;
  translation = BIOS_ATA_TRANSLATION_AUTO;
 @@ -4064,11 +4064,6 @@ int main(int argc, char **argv, char **envp)
  exit(1);
  }
  
 -/* init the memory */
 -if (ram_size == 0) {
 -ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
 -}
 -
  if (qemu_opts_foreach(qemu_find_opts(device), device_help_func, NULL, 
 0)
  != 0) {
  exit(0);

Commit message doesn't give any explanation why?

What happens with -m 0? My guess is the old code translates that to the
default size, where by intializing the default earlier it would stay.

Andreas

-- 
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg



[Qemu-devel] [PATCH 02/16] vl: set default ram_size during variable initialization

2013-07-23 Thread Igor Mammedov
Signed-off-by: Igor Mammedov imamm...@redhat.com
---
 vl.c |7 +--
 1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/vl.c b/vl.c
index 8190504..bf0c658 100644
--- a/vl.c
+++ b/vl.c
@@ -2947,7 +2947,7 @@ int main(int argc, char **argv, char **envp)
 module_call_init(MODULE_INIT_MACHINE);
 machine = find_default_machine();
 cpu_model = NULL;
-ram_size = 0;
+ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
 snapshot = 0;
 cyls = heads = secs = 0;
 translation = BIOS_ATA_TRANSLATION_AUTO;
@@ -4064,11 +4064,6 @@ int main(int argc, char **argv, char **envp)
 exit(1);
 }
 
-/* init the memory */
-if (ram_size == 0) {
-ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
-}
-
 if (qemu_opts_foreach(qemu_find_opts(device), device_help_func, NULL, 0)
 != 0) {
 exit(0);
-- 
1.7.1