A few patches to fix RME support and allow booting a realm guest, based on "[PATCH v2 00/15] target/arm/ptw: Cleanups and a few bugfixes" https://lore.kernel.org/all/20230807141514.19075-1-peter.mayd...@linaro.org/
Since v2: * Updated the comment in patch 5. I also removed the check for FEAT_RME, because as pointed out in "target/arm: Catch illegal-exception-return from EL3 with bad NSE/NS", the SCR_NSE bit can only be set with FEAT_RME enabled. Because of this additional change, I didn't add the Reviewed-by. * Added an EL-change hook to patch 6, to update the timer IRQ when changing the security state. I was wondering whether the el_change function should filter security state changes, since we only need to update IRQ state when switching between Root and Secure/NonSecure. But with a small syscall benchmark exercising EL0-EL1 switch with FEAT_RME enabled, I couldn't see any difference with and without the el_change hook, so I kept it simple. * Also added the .raw_write callback for CNTHCTL_EL2. v2: https://lore.kernel.org/all/20230802170157.401491-1-jean-phili...@linaro.org/ Jean-Philippe Brucker (6): target/arm/ptw: Load stage-2 tables from realm physical space target/arm/helper: Fix tlbmask and tlbbits for TLBI VAE2* target/arm: Skip granule protection checks for AT instructions target/arm: Pass security space rather than flag for AT instructions target/arm/helper: Check SCR_EL3.{NSE,NS} encoding for AT instructions target/arm/helper: Implement CNTHCTL_EL2.CNT[VP]MASK target/arm/cpu.h | 4 + target/arm/internals.h | 25 +++--- target/arm/cpu.c | 4 + target/arm/helper.c | 184 ++++++++++++++++++++++++++++++---------- target/arm/ptw.c | 39 ++++++--- target/arm/trace-events | 7 +- 6 files changed, 188 insertions(+), 75 deletions(-) -- 2.41.0
