Age | Commit message (Collapse) | Author | Files | Lines | |
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2018-09-17 | IntelSiliconPkg IntelVTdDxe: Check HeaderType if func 0 is implemented | Star Zeng | 1 | -8/+12 | |
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1169 Current code checks HeaderType of Function 0 even Function 0 is not implemented. HeaderType value will be 0xFF if Function 0 is not implemented, then MaxFunction will be set to PCI_MAX_FUNC + 1. The code can be optimized to only check HeaderType if Function 0 is implemented. Test done: With this patch, the result is same with the result after the patch at https://lists.01.org/pipermail/edk2-devel/2018-September/029623.html. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Rangasai V Chaganty <rangasai.v.chaganty@intel.com> Cc: Tomson Chang <tomson.chang@intel.com> Cc: Jenny Huang <jenny.huang@intel.com> Cc: Amy Chan <amy.chan@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> | |||||
2018-09-17 | IntelSiliconPkg IntelVTdDxe: Optimize when func 0 is not implemented | Star Zeng | 1 | -1/+7 | |
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1169 PCI spec: They are also required to always implement function 0 in the device. Implementing other functions is optional and may be assigned in any order (i.e., a two-function device must respond to function 0 but can choose any of the other possible function numbers (1-7) for the second function). This patch updates ScanPciBus() to not scan other functions if function 0 is not implemented. Test done: Added debug code below in the second loop of ScanPciBus(), compared the debug logs with and without this patch, many non-0 unimplemented functions are skipped correctly. DEBUG (( DEBUG_INFO, "%a() B%02xD%02xF%02x VendorId: %04x DeviceId: %04x\n", __FUNCTION__, Bus, Device, Function, VendorID, DeviceID )); Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Rangasai V Chaganty <rangasai.v.chaganty@intel.com> Cc: Tomson Chang <tomson.chang@intel.com> Cc: Jenny Huang <jenny.huang@intel.com> Cc: Amy Chan <amy.chan@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> | |||||
2017-09-17 | IntelSiliconPkg/IntelVTdDxe: Move to feature dir. | Jiewen Yao | 1 | -0/+369 | |
Move IntelVTdDxe to Feature/VTd/IntelVTdDxe. Suggested-by: Star Zeng <star.zeng@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> |