From 738b20a47f7379b27ccf7a6d2af2c1bbfa11d05f Mon Sep 17 00:00:00 2001 From: Konstantin Belousov Date: Wed, 29 Mar 2023 02:51:44 +0300 Subject: [PATCH] amd64 wakeup: recalculate mitigations after APICs are woken PR: 270489 Approved by: re (cperciva) (cherry picked from commit cd137909c3097fe223ce2b49075eed42a4933bb5) --- sys/amd64/acpica/acpi_wakeup.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/sys/amd64/acpica/acpi_wakeup.c b/sys/amd64/acpica/acpi_wakeup.c index 3df4457550d..62e11f5797f 100644 --- a/sys/amd64/acpica/acpi_wakeup.c +++ b/sys/amd64/acpica/acpi_wakeup.c @@ -294,19 +294,21 @@ acpi_wakeup_machdep(struct acpi_softc *sc, int state, int sleep_result, * in acpi_sleep_machdep(), after the microcode was * reloaded. Then recalculate the active mitigation * knobs that depend on the microcode and - * cpu_stdext_feature3. + * cpu_stdext_feature3. Do it after LAPICs are woken, + * so that IPIs work. */ identify_cpu_ext_features(); - hw_ibrs_recalculate(true); - hw_ssb_recalculate(true); - amd64_syscall_ret_flush_l1d_recalc(); - x86_rngds_mitg_recalculate(true); mca_resume(); if (vmm_resume_p != NULL) vmm_resume_p(); intr_resume(/*suspend_cancelled*/false); + hw_ibrs_recalculate(true); + amd64_syscall_ret_flush_l1d_recalc(); + hw_ssb_recalculate(true); + x86_rngds_mitg_recalculate(true); + AcpiSetFirmwareWakingVector(0, 0); } else { /* Wakeup MD procedures in interrupt enabled context */ -- 2.45.0