diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-05 22:27:28 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:11:50 -0800 |
| commit | 45fec05f805a113372c9a7ff4c653ac749f6921c (patch) | |
| tree | 36fc99d10656775acb8e9442719447d64ac30a03 /arch/sparc64/kernel/setup.c | |
| parent | 314981ac7177a933319e3c071a5cf0a579205e6e (diff) | |
[SPARC64]: Sanitize %pstate writes for sun4v.
If we're just switching between different alternate global
sets, nop it out on sun4v. Also, get rid of all of the
alternate global save/restore in the OBP CIF trampoline code.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/setup.c')
| -rw-r--r-- | arch/sparc64/kernel/setup.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index aaab319ad885..e22bf5fc92ce 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -547,19 +547,33 @@ static void __init per_cpu_patch(void) static void __init gl_patch(void) { - struct gl_1insn_patch_entry *p; + struct gl_1insn_patch_entry *p1; + struct gl_2insn_patch_entry *p2; if (tlb_type != hypervisor) return; - p = &__gl_1insn_patch; - while (p < &__gl_1insn_patch_end) { - unsigned long addr = p->addr; + p1 = &__gl_1insn_patch; + while (p1 < &__gl_1insn_patch_end) { + unsigned long addr = p1->addr; - *(unsigned int *) (addr + 0) = p->insn; + *(unsigned int *) (addr + 0) = p1->insn; __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - p++; + p1++; + } + + p2 = &__gl_2insn_patch; + while (p2 < &__gl_2insn_patch_end) { + unsigned long addr = p2->addr; + + *(unsigned int *) (addr + 0) = p2->insns[0]; + __asm__ __volatile__("flush %0" : : "r" (addr + 0)); + + *(unsigned int *) (addr + 3) = p2->insns[1]; + __asm__ __volatile__("flush %0" : : "r" (addr + 4)); + + p2++; } } |