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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>
Subject: [PULL for-6.2 0/1] target-arm queue
Date: Tue,  7 Dec 2021 17:25:32 +0000	[thread overview]
Message-ID: <20211207172533.1410205-1-peter.maydell@linaro.org> (raw)

Last minute pullreq with one patch, fixing the GICv3 ICH_MISR_EL2.LRENP
calculation. I went back-and-forth on whether to put this in, but:
 * it's an effective regression from 6.1 (the bug itself has been
   present since before then, but it was previously masked by the
   other bug which we fixed in 9cee1efe92)
 * I just realized it could cause a screaming maintenance interrupt
   even for hypervisors like KVM that don't set LRENPIE

On the other hand this is very late and we haven't seen it be a
problem with any guest except Qualcomm's hypervisor. So if you want
to decide it's better not going in that's OK too.

Tested on the gitlab CI and with a local test of nested KVM.

-- PMM

The following changes since commit 7635eff97104242d618400e4b6746d0a5c97af82:

  Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging (2021-12-06 11:18:06 -0800)

are available in the Git repository at:

  https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20211207

for you to fetch changes up to 2958e5150dfa297dd5a51fe57a29156b8744f07f:

  gicv3: fix ICH_MISR's LRENP computation (2021-12-07 15:30:08 +0000)

----------------------------------------------------------------
target-arm queue:
 * Fix calculation of ICH_MISR_EL2.LRENP to avoid incorrect generation
   of maintenance interrupts

----------------------------------------------------------------
Damien Hedde (1):
      gicv3: fix ICH_MISR's LRENP computation

 hw/intc/arm_gicv3_cpuif.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


             reply	other threads:[~2021-12-07 17:30 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-07 17:25 Peter Maydell [this message]
2021-12-07 17:25 ` [PULL 1/1] gicv3: fix ICH_MISR's LRENP computation Peter Maydell
2021-12-07 19:03 ` [PULL for-6.2 0/1] target-arm queue Richard Henderson

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