linux/tools/testing
Oliver Upton 7a16142505 KVM: arm64: selftests: Don't identity map the ucall MMIO hole
Currently the ucall MMIO hole is placed immediately after slot0, which
is a relatively safe address in the PA space. However, it is possible
that the same address has already been used for something else (like the
guest program image) in the VA space. At least in my own testing,
building the vgic_irq test with clang leads to the MMIO hole appearing
underneath gicv3_ops.

Stop identity mapping the MMIO hole and instead find an unused VA to map
to it. Yet another subtle detail of the KVM selftests library is that
virt_pg_map() does not update vm->vpages_mapped. Switch over to
virt_map() instead to guarantee that the chosen VA isn't to something
else.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Message-Id: <20221209015307.1781352-6-oliver.upton@linux.dev>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-12-27 06:00:50 -05:00
..
crypto/chacha20-s390 tools/testing/crypto: Use vzalloc instead of vmalloc+memset 2022-07-05 14:46:36 +02:00
cxl tools/testing/cxl: Add a single-port host-bridge regression config 2022-11-04 16:01:24 -07:00
fault-injection
ktest
kunit kunit: tool: Don't download risc-v opensbi firmware with wget 2022-10-07 10:16:28 -06:00
memblock memblock: test suite improvements 2022-10-11 20:48:55 -07:00
nvdimm ndtest: Cleanup all of blk namespace specific code 2022-07-12 17:57:55 -07:00
radix-tree lib/test_maple_tree: add testing for maple tree 2022-09-26 19:46:14 -07:00
scatterlist
selftests KVM: arm64: selftests: Don't identity map the ucall MMIO hole 2022-12-27 06:00:50 -05:00
vsock vsock_test: POLLIN + SO_RCVLOWAT test 2022-08-23 10:43:12 +02:00