On Mon, Jul 07, 2025 at 09:32:37AM +0800, Chao Gao wrote: > On Mon, Jul 07, 2025 at 12:51:14AM +0800, Xiaoyao Li wrote: > >Hi Chao, > > > >On 7/4/2025 4:49 PM, Chao Gao wrote: > >> Tests: > >> ====================== > >> This series passed basic CET user shadow stack test and kernel IBT test in L1 > >> and L2 guest. > >> The patch series_has_ impact to existing vmx test cases in KVM-unit-tests,the > >> failures have been fixed here[1]. > >> One new selftest app[2] is introduced for testing CET MSRs accessibilities. > >> > >> Note, this series hasn't been tested on AMD platform yet. > >> > >> To run user SHSTK test and kernel IBT test in guest, an CET capable platform > >> is required, e.g., Sapphire Rapids server, and follow below steps to build > >> the binaries: > >> > >> 1. Host kernel: Apply this series to mainline kernel (>= v6.6) and build. > >> > >> 2. Guest kernel: Pull kernel (>= v6.6), opt-in CONFIG_X86_KERNEL_IBT > >> and CONFIG_X86_USER_SHADOW_STACK options. Build with CET enabled gcc versions > >> (>= 8.5.0). > >> > >> 3. Apply CET QEMU patches[3] before build mainline QEMU. > > > >You forgot to provide the links of [1][2][3]. > > Oops, thanks for catching this. > > Here are the links: > > [1]: KVM-unit-tests fixup: > https://lore.kernel.org/all/20230913235006.74172-1-weijiang.yang@xxxxxxxxx/ > [2]: Selftest for CET MSRs: > https://lore.kernel.org/all/20230914064201.85605-1-weijiang.yang@xxxxxxxxx/ > [3]: QEMU patch: > https://lore.kernel.org/all/20230720111445.99509-1-weijiang.yang@xxxxxxxxx/ > > Please note that [1] has already been merged. And [3] is an older version of > CET for QEMU; I plan to post a new version for QEMU after the KVM series is > merged. Do you happen to have a branch with the in-progress qemu patches you are testing with? I'm working on testing on AMD and I'm having issues getting this old version of the series to work properly. Thanks, John
