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| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] Re: Compile files only once: some planning |
| Date: | Wed, 24 Mar 2010 15:45:59 +0100 |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100301 Fedora/3.0.3-1.fc12 Lightning/1.0b2pre Thunderbird/3.0.3 |
On 03/24/2010 12:19 PM, Richard Henderson wrote:
On 03/24/2010 02:47 AM, Paolo Bonzini wrote:1) make CPUState define only common fields. Include CPUState at the beginning of each per-target CPUXYZState.Irritatingly, the common fields contain quite big TLBs. And the offsets from the start of env affect the compactness of the code generated from TCG. We really really want the general registers to come first to make sure that those offsets fit the host's reg+offset addressing mode.
What about adding a 512-bytes (or more) block or something like that at the beginning of CPUState with a union, so you can put the per-target stuff there?
Paolo
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