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OvmfPkg/MptScsiDxe: Reset device on ExitBootServices()

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This causes the device to forget about the reply frame. We allocated the
reply frame in EfiBootServicesData type memory, and code executing after
ExitBootServices() is permitted to overwrite it.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2390
Signed-off-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200504210607.144434-13-nikita.leshchenko@oracle.com>
This commit is contained in:
Nikita Leshenko 2020-05-05 00:06:07 +03:00 committed by mergify[bot]
parent 505812ae1d
commit c635a56384
1 changed files with 32 additions and 1 deletions
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33
OvmfPkg/MptScsiDxe/MptScsi.c
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@ -59,6 +59,7 @@ typedef struct {
UINT32 StallPerPollUsec; UINT32 StallPerPollUsec;
EFI_PCI_IO_PROTOCOL *PciIo; EFI_PCI_IO_PROTOCOL *PciIo;
UINT64 OriginalPciAttributes; UINT64 OriginalPciAttributes;
EFI_EVENT ExitBoot;
MPT_SCSI_DMA_BUFFER *Dma; MPT_SCSI_DMA_BUFFER *Dma;
EFI_PHYSICAL_ADDRESS DmaPhysical; EFI_PHYSICAL_ADDRESS DmaPhysical;
VOID *DmaMapping; VOID *DmaMapping;
@ -762,6 +763,20 @@ MptScsiResetChannel (
return EFI_UNSUPPORTED; return EFI_UNSUPPORTED;
} }
STATIC
VOID
EFIAPI
MptScsiExitBoot (
IN EFI_EVENT Event,
IN VOID *Context
)
{
MPT_SCSI_DEV *Dev;
Dev = Context;
DEBUG ((DEBUG_VERBOSE, "%a: Context=0x%p\n", __FUNCTION__, Context));
MptScsiReset (Dev);
}
STATIC STATIC
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
@ -955,6 +970,17 @@ MptScsiControllerStart (
goto Unmap; goto Unmap;
} }
Status = gBS->CreateEvent (
EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_CALLBACK,
&MptScsiExitBoot,
Dev,
&Dev->ExitBoot
);
if (EFI_ERROR (Status)) {
goto UninitDev;
}
// //
// Host adapter channel, doesn't exist // Host adapter channel, doesn't exist
// //
@ -979,11 +1005,14 @@ MptScsiControllerStart (
&Dev->PassThru &Dev->PassThru
); );
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
goto UninitDev; goto CloseExitBoot;
} }
return EFI_SUCCESS; return EFI_SUCCESS;
CloseExitBoot:
gBS->CloseEvent (Dev->ExitBoot);
UninitDev: UninitDev:
MptScsiReset (Dev); MptScsiReset (Dev);
@ -1059,6 +1088,8 @@ MptScsiControllerStop (
return Status; return Status;
} }
gBS->CloseEvent (Dev->ExitBoot);
MptScsiReset (Dev); MptScsiReset (Dev);
Dev->PciIo->Unmap ( Dev->PciIo->Unmap (