On Mon, Oct 27, 2025 at 07:34:56PM +0800, Zhao Liu wrote: >On Fri, Oct 24, 2025 at 02:56:28PM +0800, Zhao Liu wrote: >> Date: Fri, 24 Oct 2025 14:56:28 +0800 >> From: Zhao Liu <[email protected]> >> Subject: [PATCH v3 16/20] i386/cpu: Mark cet-u & cet-s xstates as migratable >> X-Mailer: git-send-email 2.34.1 >> >> Cet-u and cet-s are supervisor xstates. Their states are saved/loaded by >> saving/loading related CET MSRs. And there's a vmsd "vmstate_cet" to >> migrate these MSRs. >> >> Thus, it's safe to mark them as migratable. >> >> Tested-by: Farrah Chen <[email protected]> >> Signed-off-by: Zhao Liu <[email protected]> >> --- >> target/i386/cpu.c | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/target/i386/cpu.c b/target/i386/cpu.c >> index 0bb65e8c5321..c08066a338a3 100644 >> --- a/target/i386/cpu.c >> +++ b/target/i386/cpu.c >> @@ -1522,7 +1522,8 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { >> .migratable_flags = XSTATE_FP_MASK | XSTATE_SSE_MASK | >> XSTATE_YMM_MASK | XSTATE_BNDREGS_MASK | XSTATE_BNDCSR_MASK | >> XSTATE_OPMASK_MASK | XSTATE_ZMM_Hi256_MASK | >> XSTATE_Hi16_ZMM_MASK | >> - XSTATE_PKRU_MASK | XSTATE_ARCH_LBR_MASK | XSTATE_XTILE_CFG_MASK >> | >> + XSTATE_PKRU_MASK | XSTATE_CET_U_MASK | XSTATE_CET_S_MASK | > >CET-U & CET-S should be added to FEAT_XSAVE_XSS_LO.
Yes. XSTATE_ARCH_LBR_MASK as well.
