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Re: [Qemu-devel] Re: Suggestion - trap window-close of VM
From: |
Lennert Buytenhek |
Subject: |
Re: [Qemu-devel] Re: Suggestion - trap window-close of VM |
Date: |
Wed, 30 Mar 2005 14:48:16 +0200 |
User-agent: |
Mutt/1.4.1i |
On Wed, Mar 30, 2005 at 02:20:36PM +0200, Struan Bartlett wrote:
> It subtracts one from the EIP (to find the address of
> the previously-executed instruction) and examines the virtual memory
> location pointed to. If the memory location contains 0xF4 (HLT) then it
> examines the EFLAGS register. If the IF (Interrupt-enable) flag is
> cleared, then one might in fact assume that Windows 2000 is sitting
> there just waiting for you to turn it off. The assumption here is that
> if interrupts are disabled then there is no way the processor's halt
> state can be interrupted.
What happens if the previous instruction is a multi-byte instruction
that happens to have 0xf4 as its last byte?
--L
- Re: [Qemu-devel] Suggestion - trap window-close of VM, Ryan Rempel, 2005/03/26
- Re: [Qemu-devel] Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/27
- [patch] Re: [Qemu-devel] Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/28
- [Qemu-devel] Re: Suggestion - trap window-close of VM, Ryan Rempel, 2005/03/29
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Paul Brook, 2005/03/29
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Ryan Rempel, 2005/03/29
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/30
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM,
Lennert Buytenhek <=
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/30
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Lennert Buytenhek, 2005/03/30
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Leonardo E. Reiter, 2005/03/30
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/30
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, John R. Hogerhuis, 2005/03/31
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Lennert Buytenhek, 2005/03/31
- Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Lennert Buytenhek, 2005/03/30
- APM bug Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/30
- Re: APM bug Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/31
- Re: APM bug Re: [Qemu-devel] Re: Suggestion - trap window-close of VM, Struan Bartlett, 2005/03/31