Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-…

…2022-01-19' into staging

* Fix bits in one of the PMCW channel subsystem masks
* s390x TCG shift instruction fixes
* Re-organization for the MAINTAINERS file
* Support for extended length of kernel command lines
* Re-order the SIGP STOP code

# gpg: Signature made Wed 19 Jan 2022 08:26:01 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/pull-request-2022-01-19:
  s390x: sigp: Reorder the SIGP STOP code
  s390x/ipl: support extended kernel command line size
  MAINTAINERS: Add myself to s390 I/O areas
  MAINTAINERS: split out s390x sections
  tests/tcg/s390x: Test shift instructions
  target/s390x: Fix shifting 32-bit values for more than 31 bits
  target/s390x: Fix cc_calc_sla_64() missing overflows
  target/s390x: Fix SRDA CC calculation
  target/s390x: Fix SLDA sign bit index
  s390x/css: fix PMCW invalid mask

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Qemu: add README.md for SGX repo

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

doc: Add the SGX doc

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>

sgx-v5.1.0-rc3-3

Fix meson build bug based on sgx-v5.1.0-rc3-2, in which meson build
doesn't copy default en-us keymap to Qemu installation folder (only sl
and sv keymap are copied).

Fixed two bugs related to windows guest, based on sgx-v5.1.0-rc3 tag:

 - Qemu doesn't reset EPC during VM reboot.
 - Qemu doesn't properly initialize SGX_LEPUBKEYHASH MSRs to digest of
   Intel's signing key during vcpu creation and reset.

Qemu: add README.md for SGX repo

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

Qemu: add README.md for SGX repo

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

Qemu: add README.md for SGX repo

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

Qemu: add README.md for SGX repo

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

Qemu: add README.md for SGX repo

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>