diff options
| author | Mike Larkin <mlarkin@cvs.openbsd.org> | 2009-11-22 22:00:52 +0000 |
|---|---|---|
| committer | Mike Larkin <mlarkin@cvs.openbsd.org> | 2009-11-22 22:00:52 +0000 |
| commit | 94a350935aba5eb33e9f23827d190405e40923d1 (patch) | |
| tree | cee88b4bdb086221b6b8bba905e1eea86f3dd43f /sys/arch/amd64 | |
| parent | f8fb5eeb35a44ff60fd4b72482b44fdcc6ae24d9 (diff) | |
Missed 4 MSRs on suspend/resume in previous version. Tested by pirofti
and myself, ok pirofti@
Diffstat (limited to 'sys/arch/amd64')
| -rw-r--r-- | sys/arch/amd64/amd64/acpi_wakecode.S | 52 |
1 files changed, 50 insertions, 2 deletions
diff --git a/sys/arch/amd64/amd64/acpi_wakecode.S b/sys/arch/amd64/amd64/acpi_wakecode.S index 7da9a0a4b8a..3b49a1e0569 100644 --- a/sys/arch/amd64/amd64/acpi_wakecode.S +++ b/sys/arch/amd64/amd64/acpi_wakecode.S @@ -1,4 +1,4 @@ -/* $OpenBSD: acpi_wakecode.S,v 1.3 2009/02/19 21:02:05 marco Exp $ */ +/* $OpenBSD: acpi_wakecode.S,v 1.4 2009/11/22 22:00:51 mlarkin Exp $ */ /* * Copyright (c) 2001 Takanori Watanabe <takawata@jp.freebsd.org> * Copyright (c) 2001 Mitsuru IWASAKI <iwasaki@jp.freebsd.org> @@ -128,7 +128,7 @@ _C_LABEL(acpi_real_mode_resume): * laptops), we might not restore the proper VGA mode * on resume. Caveat emptor. */ - jmp nobiosreset /* XXX make this a tunable */ + /* jmp nobiosreset */ /* XXX make this a tunable */ lcall $0xc000,$3 /* @@ -280,6 +280,26 @@ _C_LABEL(acpi_long_mode_resume): movw %ax, %gs /* Restore registers - start with the MSRs */ + movl $MSR_STAR, %ecx + movl acpi_saved_star, %eax + movl acpi_saved_star+4, %edx + wrmsr + + movl $MSR_LSTAR, %ecx + movl acpi_saved_lstar, %eax + movl acpi_saved_lstar+4, %edx + wrmsr + + movl $MSR_CSTAR, %ecx + movl acpi_saved_cstar, %eax + movl acpi_saved_cstar+4, %edx + wrmsr + + movl $MSR_SFMASK, %ecx + movl acpi_saved_sfmask, %eax + movl acpi_saved_sfmask+4, %edx + wrmsr + movl $MSR_FSBASE, %ecx movl acpi_saved_fsbase, %eax movl acpi_saved_fsbase+4, %edx @@ -481,6 +501,14 @@ _ACPI_TRMP_LABEL(acpi_saved_gsbase) .quad 0 _ACPI_TRMP_LABEL(acpi_saved_kgs) .quad 0 +_ACPI_TRMP_LABEL(acpi_saved_star) + .quad 0 +_ACPI_TRMP_LABEL(acpi_saved_lstar) + .quad 0 +_ACPI_TRMP_LABEL(acpi_saved_cstar) + .quad 0 +_ACPI_TRMP_LABEL(acpi_saved_sfmask) + .quad 0 .align 4 _ACPI_TRMP_LABEL(acpi_pdirpa) @@ -533,6 +561,26 @@ NENTRY(acpi_savecpu) pushq %rcx pushq %rdx + movl $MSR_STAR, %ecx + rdmsr + movl %eax, acpi_saved_star + movl %edx, acpi_saved_star+4 + + movl $MSR_CSTAR, %ecx + rdmsr + movl %eax, acpi_saved_cstar + movl %edx, acpi_saved_cstar+4 + + movl $MSR_LSTAR, %ecx + rdmsr + movl %eax, acpi_saved_lstar + movl %edx, acpi_saved_lstar+4 + + movl $MSR_SFMASK, %ecx + rdmsr + movl %eax, acpi_saved_sfmask + movl %edx, acpi_saved_sfmask+4 + movl $MSR_FSBASE, %ecx rdmsr movl %eax, acpi_saved_fsbase |