Re: [SeaBIOS] [PATCH 1/2] paravirt: init qemu cfg earlier

[Kevin O'Connor]

      On Mon, Apr 29, 2013 at 06:21:43PM +0300, Michael S. Tsirkin wrote:
  This will make it possible to use fw config
 info for pci initialization.
 
 Signed-off-by: Michael S. Tsirkin <mst(a)redhat.com&gt;
 ---
  src/paravirt.c | 2 ++
  src/post.c     | 1 -
  2 files changed, 2 insertions(+), 1 deletion(-)
 
 diff --git a/src/paravirt.c b/src/paravirt.c
 index e5027d0..85aa423 100644
 --- a/src/paravirt.c
 +++ b/src/paravirt.c
 @@ -97,6 +97,8 @@ qemu_platform_setup(void)
      if (!CONFIG_QEMU)
          return;
  
 +    qemu_cfg_init();
That wont work - the romfile stuff is needed earlier (eg, in
boot_init()).

-Kevin

[PATCH 1/2] paravirt: init qemu cfg earlier

[Michael S. Tsirkin]

      On Mon, Apr 29, 2013 at 07:23:37PM -0400, Kevin O'Connor wrote:
  On Mon, Apr 29, 2013 at 06:21:43PM +0300, Michael S.
Tsirkin wrote:
  This will make it possible to use fw config
 info for pci initialization.
 
 Signed-off-by: Michael S. Tsirkin <mst(a)redhat.com&gt;
 ---
  src/paravirt.c | 2 ++
  src/post.c     | 1 -
  2 files changed, 2 insertions(+), 1 deletion(-)
 
 diff --git a/src/paravirt.c b/src/paravirt.c
 index e5027d0..85aa423 100644
 --- a/src/paravirt.c
 +++ b/src/paravirt.c
 @@ -97,6 +97,8 @@ qemu_platform_setup(void)
      if (!CONFIG_QEMU)
          return;
  
 +    qemu_cfg_init();
 
 That wont work - the romfile stuff is needed earlier (eg, in
 boot_init()).
 
 -Kevin
True I was confused:

static void
maininit(void)
{
    // Initialize internal interfaces.
    interface_init();

    // Setup platform devices.
    platform_hardware_setup();
...
}

I see this


	interface_init -> qemu_cfg_init

	platform_hardware_setup -> qemu_platform_setup -> pci_setup


So it's already called before pci_setup.
As you said no need to change things.

-- 
MST