Re: [PATCH v5 4/8] KVM: VMX: dump_vmcs() reports tertiary_exec_control field as well

From: Zeng Guang
Date: Thu Jan 20 2022 - 00:35:04 EST


On 1/20/2022 9:06 AM, Sean Christopherson wrote:
On Fri, Jan 14, 2022, Zeng Guang wrote:
On 1/14/2022 5:03 AM, Sean Christopherson wrote:
Can you provide a sample dump? It's hard to visualize the output, e.g. I'm worried
this will be overly log and harder to read than putting tertiary controls on their
own line.
Sample dump here.
*** Control State ***

 PinBased=0x000000ff CPUBased=0xb5a26dfa SecondaryExec=0x061037eb
TertiaryExec=0x0000000000000010
That's quite the line. What if we reorganize the code to generate output like:

CPUBased=0xb5a26dfa SecondaryExec=0x061037eb TertiaryExec=0x0000000000000010
PinBased=0x000000ff EntryControls=0000d1ff ExitControls=002befff

That keeps the lines reasonable and IMO is better organization too, e.g. it captures
the relationship between primary, secondary, and tertiary controls.
Make sense. I'll change it as your suggestion. Thanks.
 EntryControls=0000d1ff ExitControls=002befff
 ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
 VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
 VMExit: intr_info=00000000 errcode=00000000 ilen=00000003
         reason=00000030 qualification=0000000000000784
pr_err("EntryControls=%08x ExitControls=%08x\n", vmentry_ctl, vmexit_ctl);
pr_err("ExceptionBitmap=%08x PFECmask=%08x PFECmatch=%08x\n",
vmcs_read32(EXCEPTION_BITMAP),
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2.27.0