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

From: Andreas Färber
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 11:43:18 +0200

Am 13.09.2011 um 11:00 schrieb Jan Kiszka:

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?

No. Did you try with Alex' via-cuda patch? That's the only one I have on my branch for Linux host.


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