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[PATCH] MdeModulePkg/NvmExpressDxe: fix check for Cap.Css
Fix the check for NVMe command set being supported by the controller. Was problematic with qemu (6.2.0, Debian 1:6.2+dfsg-3), which sets 0xC1 in that register, making the OVMF think the NVMe controller does not support NVMe. Uncovered by commit 9dd14fc, which changed the number of bits included in the Css register from 4 to 8. Signed-off-by: Mara Sophie Grosch littlefox@...
$ git diff --stat master MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) |
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Hi,
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sending again, because I forgot to CC reviewers. Best regards, Mara Sophie Grosch Am Wed, Mar 16, 2022 at 12:56:25PM -0700 schrieb littlefox via groups.io: Fix the check for NVMe command set being supported by the controller. |
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Wu, Hao A
Hello,
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Could you help to follow the instructions at: https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Development-Process#the-developer-process-for-the-edk-ii-project and send the patch mail to the edk2 mail list? For the patch, could you help to refine the check to: if ((Private->Cap.Css & BIT0) == 0) { Thanks in advance. Best Regards, Hao Wu -----Original Message----- |
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Fix the check for NVMe command set being supported by the controller.
Was problematic with qemu (6.2.0, Debian 1:6.2+dfsg-3), which sets 0xC1 in that register, making the OVMF think the NVMe controller does not support NVMe. Uncovered by commit 9dd14fc91c174eae87fd122c7ac70073a363527f, which changed the number of bits included in the Css register from 4 to 8. Signed-off-by: Mara Sophie Grosch <littlefox@...> --- MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c index d87212ffb2..b90c48731c 100644 --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressHci.c @@ -761,7 +761,7 @@ NvmeControllerInit ( return Status; } - if (Private->Cap.Css != 0x01) { + if ((Private->Cap.Css & BIT0) == 0) { DEBUG ((DEBUG_INFO, "NvmeControllerInit: the controller doesn't support NVMe command set\n")); return EFI_UNSUPPORTED; } -- 2.35.1 |
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Wu, Hao A
The change is good to me.
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Could you help to apply this change to the code in MdeModulePkg\Bus\Pci\NvmExpressPei\ as well? Really sorry for missing the above comment in previous reply. Best Regards, Hao Wu -----Original Message----- |
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Will do tomorrow (UTC+1), thanks for reviewing :)
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Am 22. März 2022 01:28:45 UTC schrieb "Wu, Hao A" <hao.a.wu@...>: The change is good to me. --
Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet. |
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