Messages in this thread | | | Date | Thu, 9 Dec 2021 12:22:49 +0100 | Subject | Re: [PATCH 0/2] KVM: x86: Rep string I/O WARN removal and test | From | Paolo Bonzini <> |
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On 12/9/21 06:48, Sean Christopherson wrote: > On Mon, Oct 25, 2021, Sean Christopherson wrote: >> Remove a WARN that was added as part of the recent I/O overhaul to play >> nice with SEV-ES string I/O. >> >> For the record, my FIXME in lieu of a WARN was deliberate, as I suspected >> userspace could trigger a WARN ;-) >> >> Based on kvm/master, commit 95e16b4792b0 ("KVM: SEV-ES: go over the >> sev_pio_data buffer in multiple passes if needed"). >> >> Sean Christopherson (2): >> KVM: x86: Don't WARN if userspace mucks with RCX during string I/O >> exit >> KVM: selftests: Add test to verify KVM doesn't explode on "bad" I/O >> >> arch/x86/kvm/x86.c | 9 +- >> tools/testing/selftests/kvm/.gitignore | 1 + >> tools/testing/selftests/kvm/Makefile | 1 + >> .../selftests/kvm/x86_64/userspace_io_test.c | 114 ++++++++++++++++++ >> 4 files changed, 123 insertions(+), 2 deletions(-) >> create mode 100644 tools/testing/selftests/kvm/x86_64/userspace_io_test.c > > Ping. I completely forgot about this too, until I unintentionally ran a > userspace_io_test that was lying around. >
Queued now, thanks. I don't know if I want the honor of having KVM singled out again on the -rc release message, but these are bugs nevertheless...
Paolo
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