Messages in this thread | | | Date | Sun, 29 Jan 2023 09:54:30 +0800 | Subject | Re: [PATCH 2/4] swiotlb: Add a new cc-swiotlb implementation for Confidential VMs | From | Guorui Yu <> |
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Hi Randy,
在 2023/1/29 00:41, Randy Dunlap 写道: > Hi-- > > On 1/28/23 00:32, GuoRui.Yu wrote: >> diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig >> index 56866aaa2ae1..7e6b20d2091f 100644 >> --- a/kernel/dma/Kconfig >> +++ b/kernel/dma/Kconfig >> @@ -78,8 +78,18 @@ config ARCH_HAS_FORCE_DMA_UNENCRYPTED >> >> config SWIOTLB >> bool >> + depends on !CC_SWIOTLB >> select NEED_DMA_MAP_STATE >> >> +config CC_SWIOTLB >> + bool "Enable cc-swiotlb for Confidential VMs" >> + default n >> + select NEED_DMA_MAP_STATE >> + help >> + This enables a cc-swiotlb implementation for Confidential VMs, >> + which allows allocating the SWIOTLB buffer allocation on runtime. > > Two "allocat..." words seems to be redundant. Probably the second one > can be dropped. > Also, instead of "on runtime", how about "at runtime"?
Thanks for your kindly advice, and I will fix it in the next version.
> >> + If unsure, say "n". > > Thanks.
Sincerely, Guorui
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