Re: [Qemu-devel] [PATCH, RFT] monitor: implement x86 info tlb for PAE and long modes

[Alexander Graf]

On 06.12.2010, at 19:38, Blue Swirl wrote:

> On Mon, Dec 6, 2010 at 11:12 AM, Alexander Graf <address@hidden> wrote:
>> 
>> On 05.12.2010, at 17:25, Blue Swirl wrote:
>> 
>>> 'info tlb' didn't show correct information for PAE mode and
>>> x86_64 long mode.
>>> 
>>> Implement the missing modes. Also print NX bit for PAE and long modes.
>>> Fix off-by-one error in 32 bit mode mask.
>>> 
>>> Signed-off-by: Blue Swirl <address@hidden>
>>> ---
>>> 
>>> I didn't find an OS that enabled PAE, please test and report.
>> 
>> Xen does. Just take a random recent xen kernel and run it with -kernel :).
> 
> Thanks, it does (CR4 is 0xb0). I'm not sure all is correct, after
> 0x1000000 the dump looks messy:
> 0000000000c00000: 0000000000c00000 --PDA---W
> 0000000000e00000: 0000000000e00000 --PDA---W
> 0000000001000000: f000ff53f000f000 XG-D-C--W
> 0000000001001000: f000ff53f000e000 X--D----W
> 0000000001002000: f000ff53f000f000 XG-D-C--W
> 0000000001003000: f000ff53f000f000 XG-D-C--W
> 0000000001004000: f000e987f000f000 X---A--U-

Good question XD. I guess the best way to find out if those numbers are right 
would be to trace the page tables manually. info tlb shows PA : VA, right?


Alex