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[Qemu-devel] Re: [Bochs-developers] [PATCH] BIOS delay_ms optimized away

From: Kevin O'Connor
Subject: [Qemu-devel] Re: [Bochs-developers] [PATCH] BIOS delay_ms optimized away with BX_QEMU enabled
Date: Sun, 30 Mar 2008 11:41:35 -0400
User-agent: Mutt/1.5.17 (2007-11-01)

On Thu, Mar 27, 2008 at 10:12:43PM -0400, David Wentzlaff wrote:
> When performing SMP probing, smp_probe() waits for 10ms by executing 
> delay_ms(10).  When compiling the BIOS for QEMU (BX_QEMU defined), 
> delay_ms() simply spins with a 'for' loop.

Hi David,

Do you know why QEMU uses different code for the delay?  What's wrong
with using inb(0x61) for both bochs and qemu?


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