This is a combination of the fixes from my EL2 series [1] and other new fixes. Changes in v2: * Fixed the prefetch abort test on QEMU by changing the address used to cause the abort. Summary of the patches: * Patch 1 adds coherent translation table walks for ARMv7 and removes unneeded dcache maintenance. * Patches 2-4 make translation table updates more robust. * Patches 5-6 fix a pretty serious bug in our PSCI test, which was causing an infinite loop of prefetch aborts. * Patches 7-10 add a proper test for prefetch aborts. The test now uses mmu_clear_user. * Patches 11-13 are fixes for the timer test. * Patches 14-15 fix turning the MMU off. * Patches 16-18 are small fixes to make the code more robust, and perhaps more important, remove unnecessary operations that might hide real bugs in KVM. Patches 1-4, 9, 18 are new. The rest are taken from the EL2 series, and I've kept the Reviewed-by tag where appropriate. There are no major changes, only those caused by rebasing on top of the current kvm-unit-tests version. Please review. [1] https://www.spinics.net/lists/kvm/msg196797.html Alexandru Elisei (18): lib: arm/arm64: Remove unnecessary dcache maintenance operations lib: arm64: Remove barriers before TLB operations lib: Add WRITE_ONCE and READ_ONCE implementations in compiler.h lib: arm/arm64: Use WRITE_ONCE to update the translation tables lib: arm/arm64: Remove unused CPU_OFF parameter arm/arm64: psci: Don't run C code without stack or vectors lib: arm/arm64: Add missing include for alloc_page.h in pgtable.h lib: arm: Implement flush_tlb_all lib: arm/arm64: Teach mmu_clear_user about block mappings arm/arm64: selftest: Add prefetch abort test arm64: timer: Write to ICENABLER to disable timer IRQ arm64: timer: EOIR the interrupt after masking the timer arm64: timer: Test behavior when timer disabled or masked lib: arm/arm64: Refuse to disable the MMU with non-identity stack pointer arm/arm64: Perform dcache clean + invalidate after turning MMU off arm: cstart64.S: Downgrade TLBI to non-shareable in asm_mmu_enable arm/arm64: Invalidate TLB before enabling MMU arm: cstart64.S: Remove icache invalidation from asm_mmu_enable lib/linux/compiler.h | 81 ++++++++++++++++++++++++ lib/arm/asm/gic-v3.h | 1 + lib/arm/asm/gic.h | 1 + lib/arm/asm/mmu-api.h | 2 +- lib/arm/asm/mmu.h | 11 ++-- lib/arm/asm/pgtable-hwdef.h | 11 ++++ lib/arm/asm/pgtable.h | 20 ++++-- lib/arm/asm/processor.h | 6 ++ lib/arm64/asm/esr.h | 3 + lib/arm64/asm/mmu.h | 2 - lib/arm64/asm/pgtable-hwdef.h | 3 + lib/arm64/asm/pgtable.h | 15 ++++- lib/arm64/asm/processor.h | 6 ++ lib/arm/mmu.c | 64 +++++++++++-------- lib/arm/processor.c | 10 +++ lib/arm/psci.c | 4 +- lib/arm/setup.c | 2 + lib/arm64/processor.c | 11 ++++ arm/cstart.S | 40 +++++++++++- arm/cstart64.S | 35 ++++++++++- arm/cache.c | 3 +- arm/psci.c | 5 +- arm/selftest.c | 112 +++++++++++++++++++++++++++++++++- arm/timer.c | 38 ++++++++---- 24 files changed, 421 insertions(+), 65 deletions(-) create mode 100644 lib/linux/compiler.h -- 2.20.1
