diff options
| -rw-r--r-- | sys/amd64/acpica/acpi_wakecode.S | 9 | ||||
| -rw-r--r-- | sys/amd64/amd64/cpu_switch.S | 2 | ||||
| -rw-r--r-- | sys/x86/acpica/acpi_wakeup.c | 4 |
3 files changed, 10 insertions, 5 deletions
diff --git a/sys/amd64/acpica/acpi_wakecode.S b/sys/amd64/acpica/acpi_wakecode.S index 6b36d55e7d26..a63b5b8b7692 100644 --- a/sys/amd64/acpica/acpi_wakecode.S +++ b/sys/amd64/acpica/acpi_wakecode.S @@ -156,11 +156,12 @@ wakeup_32: /* * Enable EFER.LME so that we get long mode when all the prereqs are * in place. In this case, it turns on when CR0_PG is finally enabled. - * Pick up a few other EFER bits that we'll use need we're here. + * Also it picks up a few other EFER bits that we'll use need we're + * here, like SYSCALL and NX enable. */ movl $MSR_EFER, %ecx - rdmsr - orl $EFER_LME | EFER_SCE, %eax + movl wakeup_efer - wakeup_start(%ebx), %eax + movl wakeup_efer + 4 - wakeup_start(%ebx), %edx wrmsr /* @@ -276,6 +277,8 @@ wakeup_pcb: .quad 0 wakeup_ret: .quad 0 +wakeup_efer: + .quad 0 wakeup_gdt: .word 0 .quad 0 diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S index 33437ad16e6f..86198ab1a8c2 100644 --- a/sys/amd64/amd64/cpu_switch.S +++ b/sys/amd64/amd64/cpu_switch.S @@ -396,7 +396,7 @@ ENTRY(resumectx) movl 4 + PCB_KGSBASE(%rdi),%edx wrmsr - /* Restore EFER. */ + /* Restore EFER one more time. */ movl $MSR_EFER,%ecx movl PCB_EFER(%rdi),%eax wrmsr diff --git a/sys/x86/acpica/acpi_wakeup.c b/sys/x86/acpica/acpi_wakeup.c index 4a10ac7b3047..74f4fedc28f1 100644 --- a/sys/x86/acpica/acpi_wakeup.c +++ b/sys/x86/acpica/acpi_wakeup.c @@ -223,7 +223,9 @@ acpi_sleep_machdep(struct acpi_softc *sc, int state) WAKECODE_FIXUP(resume_beep, uint8_t, (acpi_resume_beep != 0)); WAKECODE_FIXUP(reset_video, uint8_t, (acpi_reset_video != 0)); -#ifndef __amd64__ +#ifdef __amd64__ + WAKECODE_FIXUP(wakeup_efer, uint64_t, rdmsr(MSR_EFER)); +#else WAKECODE_FIXUP(wakeup_cr4, register_t, pcb->pcb_cr4); #endif WAKECODE_FIXUP(wakeup_pcb, struct pcb *, pcb); |