* kvm_read_guest_virt returning unexpected data
@ 2021-07-21 14:20 KVM Man
0 siblings, 0 replies; only message in thread
From: KVM Man @ 2021-07-21 14:20 UTC (permalink / raw)
To: kvm
Hi,
I'm making changes to KVM on linux 5.11.4 while using qemu 5.0.0 and
having issues using kvm_read_guest_virt successfully with an x86_64 VM
guest.
I call kvm_read_guest_virt in a VM exit handler, and it returns data
that's unexpected, as compared to what I see with a kernel debugger
attached to the guest. The function returns a successful error code
(X86EMUL_CONTINUE), and I've verified that virtual to physical address
translation is working properly when kvm_read_guest_virt_helper calls
vcpu->arch.walk_mmu->gva_to_gpa.
Are there any reasons that this function would not work as expected?
Thanks.
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