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[15/40] tests: boot_sector_test(): make it multi-shot

Message ID 20230112140312.3096331-16-imammedo@redhat.com (mailing list archive)
State New, archived
Headers show
Series x86: fixing and cleaning up ACPI PCI code part 3 | expand

Commit Message

Igor Mammedov Jan. 12, 2023, 2:02 p.m. UTC 
if the function is called the 2nd time within the same qtest session,
it will prematurely return before boot sector is executed due to
remaining signature.

Follow up patch will add VM reboot to a test case and will
call boot_sector_test() again within the same qtest env,
which may lead to above issue.

To fix it make sure signature in VM RAM is no more before
exiting boot_sector_test(), so next time it's called it
will wait boot sector is completed again.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
CC: Thomas Huth <thuth@redhat.com>
CC: Laurent Vivier <lvivier@redhat.com>
---
 tests/qtest/boot-sector.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/tests/qtest/boot-sector.c b/tests/qtest/boot-sector.c
index d3f68018e7..679ee17e2a 100644
--- a/tests/qtest/boot-sector.c
+++ b/tests/qtest/boot-sector.c
@@ -153,6 +153,8 @@  void boot_sector_test(QTestState *qts)
         signature_high = qtest_readb(qts, SIGNATURE_ADDR + 1);
         signature = (signature_high << 8) | signature_low;
         if (signature == SIGNATURE) {
+            /* wipe signature */
+            qtest_writeb(qts, SIGNATURE_ADDR, 0x00);
             break;
         }