[Qemu-devel] [Bug 1732177] [NEW] SBSA ACS test freezes inside qemu-system-aarch64

[Googulator]

Public bug reported:

In an effort to get Windows 10 for ARM64 (which is supposed to boot on
SBSA/SBBR-compliant platforms) to boot inside qemu, I tried to run the
SBSA ACS test suite. I used the UEFI image from the latest Linaro
snapshot, and built the SBSA ACS UEFI application from
https://github.com/ARM-software/sbsa-acs myself using a Linaro aarch64
compiler.

Test #8 causes an infinite exception loop, as the exception vectors
themselves somehow become inaccessible, and accessing them triggers
another exception to be handled by the same vector. (With some older
Linaro UEFI images, the hard lockup is avoided, and the SBSA UEFI app
crashes instead.) If I disable that test, the testsuite locks up in
other tests in very similar ways. We aren't even able to get a pass/fail
score from the app because of this.

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1732177

Title:
  SBSA ACS test freezes inside qemu-system-aarch64

Status in QEMU:
  New

Bug description:
  In an effort to get Windows 10 for ARM64 (which is supposed to boot on
  SBSA/SBBR-compliant platforms) to boot inside qemu, I tried to run the
  SBSA ACS test suite. I used the UEFI image from the latest Linaro
  snapshot, and built the SBSA ACS UEFI application from
  https://github.com/ARM-software/sbsa-acs myself using a Linaro aarch64
  compiler.

  Test #8 causes an infinite exception loop, as the exception vectors
  themselves somehow become inaccessible, and accessing them triggers
  another exception to be handled by the same vector. (With some older
  Linaro UEFI images, the hard lockup is avoided, and the SBSA UEFI app
  crashes instead.) If I disable that test, the testsuite locks up in
  other tests in very similar ways. We aren't even able to get a
  pass/fail score from the app because of this.

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