v2:
- Addressed all comments from Nikos and Alex
- The biggest changes are
* dropping the weird persistent map stuff that I never liked by taking
Alex's suggestion to just create the idmap early
* adding mem_region_add() to clean up memory region adding code, also
improved the assignment of region fields
- Also, while we found that we still have a memory map assumption
(3G-4G reserved for virtual memory allocation), I only make that
assumption clear. I've left removing it for an additional patch
for another day.
- Added psci_invoke_none() to use prior to the PSCI method being set
- Added r-b's for each patch given, unless the commit changed too much
- Didn't take Alex's suggestion to use x5 for stacktop when calling
setup from start. I prefer explicitly loading it again.
This series is a collection of patches derived from [1] that pave the
way for new targets, e.g. target-efi[2]. These patches mostly address
the elimination of memory map assumptions and they shouldn't have any
functional changes. The last two patches are a couple of patches not
related to the memory map, but they also prepare for bare metal targets.
I tossed them in since I don't think they should be too controversial.
This patch series is also available here [3].
[1] https://github.com/rhdrjones/kvm-unit-tests/commits/target-efi
[2] https://www.youtube.com/watch?v=kvaufVrL0J0
[3] https://gitlab.com/rhdrjones/kvm-unit-tests/-/commits/efiprep
Thanks,
drew
Andrew Jones (8):
arm/arm64: Reorganize cstart assembler
arm/arm64: Move setup_vm into setup
pci-testdev: ioremap regions
arm/arm64: mmu: Stop mapping an assumed IO region
arm/arm64: mmu: Remove memory layout assumptions
arm/arm64: setup: Consolidate memory layout assumptions
chr-testdev: Silently fail init
arm/arm64: psci: don't assume method is hvc
arm/cstart.S | 92 ++++++++++++++--------
arm/cstart64.S | 45 ++++++++---
arm/flat.lds | 23 ++++++
arm/selftest.c | 34 ++------
lib/arm/asm/io.h | 6 ++
lib/arm/asm/mmu.h | 1 +
lib/arm/asm/page.h | 2 +
lib/arm/asm/psci.h | 10 ++-
lib/arm/asm/setup.h | 7 +-
lib/arm/mmu.c | 53 +++++++++----
lib/arm/psci.c | 37 +++++++--
lib/arm/setup.c | 175 ++++++++++++++++++++++++-----------------
lib/arm64/asm/io.h | 6 ++
lib/arm64/asm/mmu.h | 1 +
lib/arm64/asm/page.h | 2 +
lib/chr-testdev.c | 5 +-
lib/pci-host-generic.c | 5 +-
lib/pci-host-generic.h | 4 +-
lib/pci-testdev.c | 4 +
19 files changed, 333 insertions(+), 179 deletions(-)
--
2.30.2
