bwlp/qemu.git/target/s390x/gen-features.c, branch spice_video_codecs

target/s390x: support PRNO_TRNG instruction

2022-09-26T15:23:11+00:00

In order for hosts running inside of TCG to initialize the kernel's random number generator, we should support the PRNO_TRNG instruction, backed in the usual way with the qemu_guest_getrandom helper. This is confirmed working on Linux 5.19. Signed-off-by: Jason A. Donenfeld Message-Id: <20220921100729.2942008-2-Jason@zx2c4.com> Reviewed-by: David Hildenbrand [thuth: turn prno-trng off in avocado test to avoid breaking it] Signed-off-by: Thomas Huth

target/s390x: support SHA-512 extensions

2022-09-23T13:18:52+00:00

In order to fully support MSA_EXT_5, we have to support the SHA-512 special instructions. So implement those. The implementation began as something TweetNacl-like, and then was adjusted to be useful here. It's not very beautiful, but it is quite short and compact, which is what we're going for. Signed-off-by: Jason A. Donenfeld [ restructure, add missing exception, add comments, fixup CPU model ] Signed-off-by: David Hildenbrand Message-Id: <20220922153820.221811-1-david@redhat.com> Signed-off-by: Thomas Huth

s390x/cpumodel: add stfl197 processor-activity-instrumentation extension 1

2022-08-25T19:59:04+00:00

Add stfle 197 (processor-activity-instrumentation extension 1) to the gen16 default model and fence it off for 7.1 and older. Signed-off-by: Christian Borntraeger Reviewed-by: David Hildenbrand Message-Id: <20220727135120.12784-1-borntraeger@linux.ibm.com> Acked-by: Cornelia Huck Signed-off-by: Thomas Huth

s390: Typo fix FLOATING_POINT_SUPPPORT_ENH

2022-06-02T16:31:51+00:00

One less P needed. Signed-off-by: Dr. David Alan Gilbert Message-Id: <20220523115123.150340-1-dgilbert@redhat.com> Signed-off-by: Thomas Huth

target/s390x: add S390_FEAT_VECTOR_ENH2 to qemu CPU model

2022-05-04T06:47:19+00:00

[ dh: take care of compat machines ] Signed-off-by: David Miller Signed-off-by: Richard Henderson Signed-off-by: David Hildenbrand Message-Id: <20220428094708.84835-13-david@redhat.com> Signed-off-by: Thomas Huth

s390x/cpu_models: make "max" match the unmodified "qemu" CPU model under TCG

2022-05-04T06:47:19+00:00

Before we were able to bump up the qemu CPU model to a z13, we included some experimental features during development in the "max" model only. Nowadays, the "max" model corresponds exactly to the "qemu" CPU model of the latest QEMU machine under TCG. Let's remove all the special casing, effectively making both models match completely from now on, and clean up. Signed-off-by: David Hildenbrand Reviewed-by: Cornelia Huck Reviewed-by: Richard Henderson Message-Id: <20220428094708.84835-4-david@redhat.com> Signed-off-by: Thomas Huth

s390x/cpu_models: drop "msa5" from the TCG "max" model

2022-05-04T06:47:19+00:00

We don't include the "msa5" feature in the "qemu" model because it generates a warning. The PoP states: "The message-security-assist extension 5 requires the secure-hash-algorithm (SHA-512) capabilities of the message-security-assist extension 2 as a prereq- uisite. (March, 2015)" As SHA-512 won't be supported in the near future, let's just drop the feature from the "max" model. This avoids the warning and allows us for making the "max" model match the "qemu" model (except for compat machines). We don't lose much, as we only implement the function stubs for MSA, excluding any real subfunctions. Signed-off-by: David Hildenbrand Reviewed-by: Thomas Huth Reviewed-by: Cornelia Huck Reviewed-by: Richard Henderson Resolves: https://gitlab.com/qemu-project/qemu/-/issues/897 Message-Id: <20220428094708.84835-3-david@redhat.com> Signed-off-by: Thomas Huth

s390x/cpumodel: Bump up QEMU model to a stripped-down IBM z15 GA1

2022-02-28T10:29:15+00:00

TCG implements everything we need to run basic z15 OS+software Signed-off-by: David Miller Message-Id: <20220223223117.66660-3-dmiller423@gmail.com> Reviewed-by: David Hildenbrand Signed-off-by: Thomas Huth

s390x/tcg: Implement Miscellaneous-Instruction-Extensions Facility 3 for the s390x

2022-02-28T10:29:15+00:00

implements: AND WITH COMPLEMENT (NCRK, NCGRK) NAND (NNRK, NNGRK) NOT EXCLUSIVE OR (NXRK, NXGRK) NOR (NORK, NOGRK) OR WITH COMPLEMENT (OCRK, OCGRK) SELECT (SELR, SELGR) SELECT HIGH (SELFHR) MOVE RIGHT TO LEFT (MVCRL) POPULATION COUNT (POPCNT) Resolves: https://gitlab.com/qemu-project/qemu/-/issues/737 Signed-off-by: David Miller Message-Id: <20220223223117.66660-2-dmiller423@gmail.com> Reviewed-by: David Hildenbrand Reviewed-by: Richard Henderson Signed-off-by: Thomas Huth

s390x/cpumodel: Add more feature to gen16 default model

2021-09-07T11:36:43+00:00

Add the new gen16 features to the default model and fence them for machine version 6.1 and earlier. Signed-off-by: Christian Borntraeger Reviewed-by: David Hildenbrand Message-Id: <20210907101017.27126-1-borntraeger@de.ibm.com> Signed-off-by: Thomas Huth