Re: [PATCH] PPC4xx: don't unregister RAM at reset
On 30.07.2010, at 03:48, Hollis Blanchard wrote: The PowerPC 4xx SDRAM controller emulation unregisters RAM in its reset callback. However, qemu_system_reset() is now called at initialization time, so RAM is unregistered before starting the guest. So the registration should be moved to reset now, no? How is the reset different from boot? How did a reset work before? Alex -- To unsubscribe from this list: send the line unsubscribe kvm-ppc in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] PPC4xx: don't unregister RAM at reset
On Mon, Aug 2, 2010 at 1:41 AM, Alexander Graf ag...@suse.de wrote: On 30.07.2010, at 03:48, Hollis Blanchard wrote: The PowerPC 4xx SDRAM controller emulation unregisters RAM in its reset callback. However, qemu_system_reset() is now called at initialization time, so RAM is unregistered before starting the guest. So the registration should be moved to reset now, no? How is the reset different from boot? How did a reset work before? As far as I can tell, no other platform unregisters and re-registers memory at reset, so that is a difference between reset and boot. Maybe I don't understand your other question. Before qemu_system_reset() was called at initialization time, memory was not unregistered, and therefore the platform had memory and could boot. -Hollis -- To unsubscribe from this list: send the line unsubscribe kvm-ppc in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] PPC4xx: don't unregister RAM at reset
The PowerPC 4xx SDRAM controller emulation unregisters RAM in its reset callback. However, qemu_system_reset() is now called at initialization time, so RAM is unregistered before starting the guest. Signed-off-by: Hollis Blanchard hol...@penguinppc.org --- hw/ppc4xx_devs.c |1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/hw/ppc4xx_devs.c b/hw/ppc4xx_devs.c index be130c4..7f698b8 100644 --- a/hw/ppc4xx_devs.c +++ b/hw/ppc4xx_devs.c @@ -619,7 +619,6 @@ static void sdram_reset (void *opaque) /* We pre-initialize RAM banks */ sdram-status = 0x; sdram-cfg = 0x0080; -sdram_unmap_bcr(sdram); } void ppc4xx_sdram_init (CPUState *env, qemu_irq irq, int nbanks, -- 1.7.1.1 -- To unsubscribe from this list: send the line unsubscribe kvm-ppc in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
