[Qemu-devel] [Bug 1438144] Re: Page sizes are not interpreted correctly for E500/E500MC

[Scott Wood]

This is not a bug.  MMU v2 (implemented in e6500) extended the TSIZE field so 
that 1K <<
TSIZE is correct.  The extension was on the LSB side so that it works
fine as long as the low bit of the new TSIZE (which is reserved on
e500v2/mc) is zero.


** Changed in: qemu
       Status: New => Invalid

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1438144

Title:
  Page sizes are not interpreted correctly for E500/E500MC

Status in QEMU:
  Invalid

Bug description:
  http://cache.freescale.com/files/32bit/doc/ref_manual/E500CORERM.pdf - see 
2.12.5.2 MAS Register 1 (MAS1), p. 2-41
  http://cache.freescale.com/files/32bit/doc/ref_manual/E500MCRM.pdf - see 
2.16.6.2 MAS Register 1 (MAS1), p. 2-54

  According to these documents, variable page size for TLB1 is computed
  as 4K ** TSIZE.

  However, QEMU always treats it as if it was 1K << TSIZE, even if
  options like "-cpu e500mc" are supplied to qemu.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1438144/+subscriptions