xen-ia64-devel
RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on dom
To: |
"Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx>, "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "Tian, Kevin" <kevin.tian@xxxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
Subject: |
RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip? |
From: |
"Yang, Fred" <fred.yang@xxxxxxxxx> |
Date: |
Wed, 28 Dec 2005 14:34:42 -0800 |
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Wed, 28 Dec 2005 22:38:41 +0000 |
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CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip? |
Dan,
You can goto
http://developer.intel.com/design/itanium/manuals/iiasdmanual.htm to
download new SDM. The psr.ic=1 in calling PAL had been implemented into
PAL since 2002, so is HP's PAL.
The correct way is to run with PSR.ic=1 and let TLB miss handler code to
handle Dside miss.
Please refer to section 11.9.2.1.3 Making PAL Procedure Calls in
Physical or Virtual Mode in SDM Volume#2. It specifically called out
"with psr.ic=1 to handle any TLB faults that could occur" in the spec
So, Anthony's psr.ic=1 patch is still valid since Xen only maps PAL with
ITR not DTR
-Fred
Magenheimer, Dan (HP Labs Fort Collins) wrote:
> Just working for a brief time today...
>
> I just committed a fix that changes the compile-time CONFIG
> to a run-time test. Please verify that this runtime test
> works on the future processor.
>
> Anthony, Fred -- If PAL code were not pinned, we would not
> get a nested DTLB miss.
>
> Kevin, Anthony -- The SDM description of the PAL_CACHE_FLUSH
> call states that psr.ic must be turned off for this call.
> (Note that my SDM is quite old so this may have changed
> in subsequent revisions.)
>
> Dan
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- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, (continued)
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Magenheimer, Dan (HP Labs Fort Collins)
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Yang, Fred
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Magenheimer, Dan (HP Labs Fort Collins)
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Xu, Anthony
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Tian, Kevin
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Magenheimer, Dan (HP Labs Fort Collins)
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Xu, Anthony
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Yang, Fred
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Xu, Anthony
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Magenheimer, Dan (HP Labs Fort Collins)
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?,
Yang, Fred <=
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Magenheimer, Dan (HP Labs Fort Collins)
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Xu, Anthony
- RE: CONFIG_IA64_SPLIT_CACHE was: [Xen-ia64-devel] Console problem on domU on tip?, Magenheimer, Dan (HP Labs Fort Collins)
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