With these patches I'm able to boot a Realm guest under "-cpu max,x-rme=on". They are based on Peter's series which fixes handling of NSTable: https://lore.kernel.org/qemu-devel/20230714154648.327466-1-peter.mayd...@linaro.org/
Running a Realm guest requires components at EL3 and R-EL2. Some rough support for TF-A and RMM is available here: https://jpbrucker.net/git/tf-a/log/?h=qemu-rme https://jpbrucker.net/git/rmm/log/?h=qemu-rme I'll clean this up before sending it out. I also need to manually disable FEAT_SME in QEMU in order to boot this, otherwise the Linux host fails to boot because hyp-stub accesses to SME regs are trapped to EL3, which doesn't support RME+SME at the moment. The right fix is probably in TF-A but I haven't investigated yet. Jean-Philippe Brucker (5): target/arm/ptw: Load stage-2 tables from realm physical space target/arm/helper: Fix vae2_tlbmask() target/arm: Skip granule protection checks for AT instructions target/arm: Pass security space rather than flag for AT instructions target/arm/helper: Implement CNTHCTL_EL2.CNT[VP]MASK target/arm/internals.h | 25 ++++++++------ target/arm/helper.c | 78 ++++++++++++++++++++++++++++-------------- target/arm/ptw.c | 19 ++++++---- 3 files changed, 79 insertions(+), 43 deletions(-) -- 2.41.0
