Daniel Verkamp dade4c7425 devices: pci: preserve read-only bits in write_reg ... The 32-bit write_reg() function for PCI configuration space masked off non-writable (read-only) bits from the incoming value, but it did not preserve the original bits from the register; this results in writes to read-only registers to clear all read-only bits to 0 instead. Preserve the original value of the read-only bits and add a test to verify that this works. BUG=None TEST=./build_test Change-Id: Icc67b429f17d519ec4e9090f8e0ce48aaff76491 Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1660204 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Dylan Reid <dgreid@chromium.org>		2019-06-25 04:36:47 +00:00
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src	devices: pci: preserve read-only bits in write_reg	2019-06-25 04:36:47 +00:00
Cargo.toml	edition: Update devices crate to 2018 edition	2019-04-15 02:06:04 -07:00