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Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging

From: Jan Kiszka
Subject: Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging in chain 4 memory access mode
Date: Tue, 13 Sep 2011 11:00:31 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv: Gecko/20080226 SUSE/ Thunderbird/ Mnenhy/

On 2011-09-13 10:40, Alexander Graf wrote:
> Btw, it still tries to execute invalid code even with your patch. #if 0'ing 
> out the memory region updates at least get the guest booting for me. Btw, to 
> get it working you also need a patch for the interrupt controller (another 
> breakage thanks to memory api).
> diff --git a/hw/heathrow_pic.c b/hw/heathrow_pic.c
> index 51996ab..16f48d1 100644
> --- a/hw/heathrow_pic.c
> +++ b/hw/heathrow_pic.c
> @@ -126,7 +126,7 @@ static uint64_t pic_read(void *opaque, target_phys_addr_t 
> addr,
>  static const MemoryRegionOps heathrow_pic_ops = {
>      .read = pic_read,
>      .write = pic_write,
> -    .endianness = DEVICE_NATIVE_ENDIAN,
> +    .endianness = DEVICE_LITTLE_ENDIAN,
>  };
>  static void heathrow_pic_set_irq(void *opaque, int num, int level)

With out without this fix, with or without active chain-4 optimization,
I just get an empty yellow screen when firing up qemu-system-ppc (also
when using the Debian ISO). Do I need to specify a specific machine type?


Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux

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