lkml.org 
[lkml]   [2021]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 0/2] KVM: x86: Rep string I/O WARN removal and test
From
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

\
 
 \ /
  Last update: 2021-12-09 12:23    [W:0.122 / U:0.780 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site