From ebda377f8c6d9a5ec69a0aeb2000aa5ce74f7fa2 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Tue, 15 Mar 2011 12:26:21 +0100 Subject: x86: Properly reset PAT MSR Conforming to the Intel spec, set the power-on value of PAT also on reset, but save it across INIT. Signed-off-by: Jan Kiszka Signed-off-by: Marcelo Tosatti --- target-i386/helper.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'target-i386/helper.c') diff --git a/target-i386/helper.c b/target-i386/helper.c index a08309f..d15fca5 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -99,6 +99,8 @@ void cpu_reset(CPUX86State *env) env->mxcsr = 0x1f80; + env->pat = 0x0007040600070406ULL; + memset(env->dr, 0, sizeof(env->dr)); env->dr[6] = DR6_FIXED_1; env->dr[7] = DR7_FIXED_1; @@ -1280,8 +1282,11 @@ CPUX86State *cpu_x86_init(const char *cpu_model) void do_cpu_init(CPUState *env) { int sipi = env->interrupt_request & CPU_INTERRUPT_SIPI; + uint64_t pat = env->pat; + cpu_reset(env); env->interrupt_request = sipi; + env->pat = pat; apic_init_reset(env->apic_state); env->halted = !cpu_is_bsp(env); } -- cgit v1.1