Re: [PATCH 2/3] target/hppa: mask offset bits in gva

[Sven Schnelle]

Richard Henderson <richard.henderson@linaro.org> writes:

> On 3/24/24 08:41, Sven Schnelle wrote:
>> 7f09e0: val=000fffb0301fffff r2=110e0f0000000001 r1=01fffffffffff600 
>> phys=fffffffffffb0000 4K aid=1 pl1=0, pl2=0 type=1 (DATA RW)
>> 'val' is the value constructed from IOR/ISR,
>
> Is this byte swapped in some weird way?  I do not see how 'val'
> corresponds to any of the addresses we're talking about.  From here,
> the string "301fffff" appears to an out-of-context grep hit.

It's just both values combined together, where the 301fffff is basically
the ISR content. It's not a out of context grep - the real machines i have
are constructing the same value, and the same offset into the pagetable.
I verified that by patching the DTLB miss handler in HPUX to write the
ISR/IOR and calulated pagetable offset/value to PAGE0 and looked with
the kernel debugger at the values.