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| author | Thomas Huth | 2018-06-08 19:17:39 +0200 |
|---|---|---|
| committer | John Snow | 2018-06-08 19:17:39 +0200 |
| commit | b1dd6d2d270a2b72db47576635c51636f0db36e6 (patch) | |
| tree | bcfa16e21ed2d99e6019fb6e5a5301e256155260 | |
| parent | ahci: make ahci_mem_write traces more descriptive (diff) | |
| download | qemu-b1dd6d2d270a2b72db47576635c51636f0db36e6.tar.gz qemu-b1dd6d2d270a2b72db47576635c51636f0db36e6.tar.xz qemu-b1dd6d2d270a2b72db47576635c51636f0db36e6.zip | |
tests/boot-sector: Add magic bytes to s390x boot code header
We're going to use the s390x boot code for testing CD-ROM booting.
But the ISO loader of the s390-ccw bios is a little bit more picky
than the network loader and expects some magic bytes in the header
of the file (see linux_s390_magic in pc-bios/s390-ccw/bootmap.c), so
we've got to add them in our boot code here, too.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Acked-By: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
| -rw-r--r-- | tests/boot-sector.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tests/boot-sector.c b/tests/boot-sector.c index c373f0e715..7824286b9a 100644 --- a/tests/boot-sector.c +++ b/tests/boot-sector.c @@ -68,8 +68,11 @@ static uint8_t x86_boot_sector[512] = { }; /* For s390x, use a mini "kernel" with the appropriate signature */ -static const uint8_t s390x_psw[] = { - 0x00, 0x08, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00 +static const uint8_t s390x_psw_and_magic[] = { + 0x00, 0x08, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, /* Program status word */ + 0x02, 0x00, 0x00, 0x18, 0x60, 0x00, 0x00, 0x50, /* Magic: */ + 0x02, 0x00, 0x00, 0x68, 0x60, 0x00, 0x00, 0x50, /* see linux_s390_magic */ + 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40 /* in the s390-ccw bios */ }; static const uint8_t s390x_code[] = { 0xa7, 0xf4, 0x00, 0x0a, /* j 0x10010 */ @@ -110,7 +113,7 @@ int boot_sector_init(char *fname) } else if (g_str_equal(arch, "s390x")) { len = 0x10000 + sizeof(s390x_code); boot_code = g_malloc0(len); - memcpy(boot_code, s390x_psw, sizeof(s390x_psw)); + memcpy(boot_code, s390x_psw_and_magic, sizeof(s390x_psw_and_magic)); memcpy(&boot_code[0x10000], s390x_code, sizeof(s390x_code)); } else { g_assert_not_reached(); |