To implement the EFI_SYSTEM_TABLE_POINTER we need 4 MiB aligned
memory.

On the sandbox LMB uses addresses relative to the start of a page aligned
RAM buffer allocated with mmap(). This leads to a mismatch of alignment
between EFI which uses pointers and LMB which uses phys_addr_t.

Ensure that the RAM buffer used for LMB is 4 MiB aligned.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Sandbox is its own architecture, but sometimes we want to mimic the host
architecture, e.g. when running an EFI app not built by U-Boot.

Add a -N/--native flag which tells sandbox to reflect the architecture
of the host.

Signed-off-by: Simon Glass <sjg@chromium.org>

An address may be mapped twice and unmapped twice. Delete the mapping
only when the last user unmaps it.

Fix a missing comment while here.

Signed-off-by: Simon Glass <sjg@chromium.org>

UPL significantly alters the boot flow for sandbox. Add a flag to enable
this so that it can be enabled only on tests which need it.

Signed-off-by: Simon Glass <sjg@chromium.org>

Remove and replace common.h and config.h in sandbox when it's not needed
and add some explicit includes where needed.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

Most tests don't want these and they can create a lot of noise. Add a way
to disable them. Use that in tests, with a flag provided to enable them
for tests that need this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>

For bootstd tests it is seldom useful to have ethernet enabled. Add a way
to disable it, so that ethernet operations like tftpboot do nothing.

Signed-off-by: Simon Glass <sjg@chromium.org>

At present the sandbox executable is assumed to be arg[0] but this only
works for a single jump (e.g. from SPL to U-Boot). Add a new arg to solve
this issue, along with a detailed comment.

Signed-off-by: Simon Glass <sjg@chromium.org>

We need an 'other' FDT which is different from the control FDT, so we can
check that the ofnode tests correctly handle them both.

Add this to the build along with a way to read it into the sandbox state.

Signed-off-by: Simon Glass <sjg@chromium.org>

At present this implementation is specific to loading the test FDT. We
plan to load others, so create a generic function to handle this.

The path is now limited to 256 characters, to simplify the code.

When there is an empty argv[0] (which should not happen), the function now
just uses the path as is, with no prefix.

Signed-off-by: Simon Glass <sjg@chromium.org>