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| author | Konstantin Belousov <kib@FreeBSD.org> | 2023-03-28 23:51:44 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2023-03-29 18:45:20 +0000 |
| commit | cd137909c3097fe223ce2b49075eed42a4933bb5 (patch) | |
| tree | fa84a0b0042f6682836defe046ec907ce18eea4e | |
| parent | 4dc3b1fa1bbcf20f7713d94776a1604964ada32b (diff) | |
| download | src-cd137909c3097fe223ce2b49075eed42a4933bb5.tar.gz src-cd137909c3097fe223ce2b49075eed42a4933bb5.zip | |
amd64 wakeup: recalculate mitigations after APICs are woken
APICs are needed to broadcast IPIs for MSR writes.
PR: 270489
Reviewed by: dchagin, emaste, jhb
Tested by: dchagin, manu
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D39302
| -rw-r--r-- | sys/amd64/acpica/acpi_wakeup.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sys/amd64/acpica/acpi_wakeup.c b/sys/amd64/acpica/acpi_wakeup.c index 3df4457550d6..62e11f5797f6 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 */ |