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OvmfPkg/LegacyBios: set NumberBbsEntries to the size of BbsTable

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This is hard-coded in the IntThunk structure, and the additional entries
will be needed for other devices like VirtIO and NVMe disks. So admit
that they exist.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190626113742.819933-2-dwmw2@infradead.org>
This commit is contained in:
David Woodhouse 2019-06-26 12:37:39 +01:00 committed by Laszlo Ersek
parent 2f3435c234
commit 0ca6250768
1 changed files with 6 additions and 5 deletions
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11
OvmfPkg/Csm/LegacyBiosDxe/LegacyBios.c
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@ -565,12 +565,13 @@ ShadowAndStartLegacy16 (
EfiToLegacy16BootTable->BbsTable = (UINT32)(UINTN)BbsTable;
Private->BbsTablePtr = (VOID *) BbsTable;
//
// Skip Floppy and possible onboard IDE drives
//
EfiToLegacy16BootTable->NumberBbsEntries = 1 + 2 * MAX_IDE_CONTROLLER;
for (Index = 0; Index < (sizeof (Private->IntThunk->BbsTable) / sizeof (BBS_TABLE)); Index++) {
//
// Populate entire table with BBS_IGNORE_ENTRY
//
EfiToLegacy16BootTable->NumberBbsEntries = MAX_BBS_ENTRIES;
for (Index = 0; Index < MAX_BBS_ENTRIES; Index++) {
BbsTable[Index].BootPriority = BBS_IGNORE_ENTRY;
}
//