lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 2 May 2007 08:23:40 -0700 From: "Michael Chan" <mchan@...adcom.com> To: "David Miller" <davem@...emloft.net>, jeff@...zik.org cc: netdev@...r.kernel.org Subject: Re: [PATCH 3/20][BNX2]: Add 40-bit DMA workaround for 5708. David Miller wrote: > From: Jeff Garzik <jeff@...zik.org> > Date: Wed, 02 May 2007 03:06:43 -0400 > > > Second, CONFIG_HIGHMEM is a bad test for IOMMU presence. I don't > > think you /can/ test for IOMMU presence. Maybe DaveM knows a way > > that I do not? > > You really can't. > > We have platforms that are both IOMMU and non-IOMMU for the same > configuration, it isn't known until run-time. > > A non-IOMMU system using 64-bit dma_addr_t will always set CONFIG_HIGHMEM, right? - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists