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| author | Igor Mammedov <imammedo@redhat.com> | 2016-04-29 14:44:40 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-05-01 15:42:13 +0300 |
| commit | 1dbfd7892b66c757fdf67f346be40233adbad80e (patch) | |
| tree | bc6477a73e5d2ec2ba61dfb3d6355c86eaedced5 | |
| parent | 47dac82d8b013a5c7dd044a797ae6727b553959a (diff) | |
| download | qemu-1dbfd7892b66c757fdf67f346be40233adbad80e.tar.gz | |
acpi: fix bios linker loadder COMMAND_ALLOCATE on bigendian host
'make check' fails with:
ERROR:tests/bios-tables-test.c:493:load_expected_aml:
assertion failed: (g_file_test(aml_file, G_FILE_TEST_EXISTS))
since commit:
caf50c7166a6ed96c462ab5db4b495e1234e4cc6
tests: pc: acpi: drop not needed 'expected SSDT' blobs
Assert happens because qemu-system-x86_64 generates
SSDT table and test looks for a corresponding expected
table to compare with.
However there is no expected SSDT blob anymore, since
QEMU souldn't generate one. As it happens BIOS is not
able to read ACPI tables from QEMU and fallbacks to
embeded legacy ACPI codepath, which generates SSDT.
That happens due to wrongly sized endiannes conversion
which makes
uint8_t BiosLinkerLoaderEntry.alloc.zone
end up with 0 due to truncation of 32 bit integer
which on host is 1 or 2.
Fix it by dropping invalid cpu_to_le32() as uint8_t
doesn't require any conversion.
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1330174
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
| -rw-r--r-- | hw/acpi/bios-linker-loader.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/hw/acpi/bios-linker-loader.c b/hw/acpi/bios-linker-loader.c index ace9abbd3e..5153ab151b 100644 --- a/hw/acpi/bios-linker-loader.c +++ b/hw/acpi/bios-linker-loader.c @@ -135,9 +135,8 @@ void bios_linker_loader_alloc(GArray *linker, strncpy(entry.alloc.file, file, sizeof entry.alloc.file - 1); entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ALLOCATE); entry.alloc.align = cpu_to_le32(alloc_align); - entry.alloc.zone = cpu_to_le32(alloc_fseg ? - BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG : - BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH); + entry.alloc.zone = alloc_fseg ? BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG : + BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH; /* Alloc entries must come first, so prepend them */ g_array_prepend_vals(linker, &entry, sizeof entry); |