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KVM: ia64: Implement some pal calls needed for windows 2008
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For windows 2008, it needs more pal calls to implement for booting.
In addition, also changes the name of set_{sal, pal}_call_result to
get_{sal,pal}_call_result for readability.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Xiantao Zhang authored and Avi Kivity committed Mar 24, 2009
1 parent 4b7bb62 commit 7d656bd
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Showing 2 changed files with 152 additions and 7 deletions.
151 changes: 148 additions & 3 deletions arch/ia64/kvm/kvm_fw.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -227,6 +227,18 @@ static struct ia64_pal_retval pal_proc_get_features(struct kvm_vcpu *vcpu)
return result;
}

static struct ia64_pal_retval pal_register_info(struct kvm_vcpu *vcpu)
{

struct ia64_pal_retval result = {0, 0, 0, 0};
long in0, in1, in2, in3;

kvm_get_pal_call_data(vcpu, &in0, &in1, &in2, &in3);
result.status = ia64_pal_register_info(in1, &result.v1, &result.v2);

return result;
}

static struct ia64_pal_retval pal_cache_info(struct kvm_vcpu *vcpu)
{

Expand Down Expand Up @@ -268,8 +280,12 @@ static struct ia64_pal_retval pal_vm_summary(struct kvm_vcpu *vcpu)
static struct ia64_pal_retval pal_vm_info(struct kvm_vcpu *vcpu)
{
struct ia64_pal_retval result;
unsigned long in0, in1, in2, in3;

INIT_PAL_STATUS_UNIMPLEMENTED(result);
kvm_get_pal_call_data(vcpu, &in0, &in1, &in2, &in3);

result.status = ia64_pal_vm_info(in1, in2,
(pal_tc_info_u_t *)&result.v1, &result.v2);

return result;
}
Expand All @@ -292,6 +308,108 @@ static void prepare_for_halt(struct kvm_vcpu *vcpu)
vcpu->arch.timer_fired = 0;
}

static struct ia64_pal_retval pal_perf_mon_info(struct kvm_vcpu *vcpu)
{
long status;
unsigned long in0, in1, in2, in3, r9;
unsigned long pm_buffer[16];

kvm_get_pal_call_data(vcpu, &in0, &in1, &in2, &in3);
status = ia64_pal_perf_mon_info(pm_buffer,
(pal_perf_mon_info_u_t *) &r9);
if (status != 0) {
printk(KERN_DEBUG"PAL_PERF_MON_INFO fails ret=%ld\n", status);
} else {
if (in1)
memcpy((void *)in1, pm_buffer, sizeof(pm_buffer));
else {
status = PAL_STATUS_EINVAL;
printk(KERN_WARNING"Invalid parameters "
"for PAL call:0x%lx!\n", in0);
}
}
return (struct ia64_pal_retval){status, r9, 0, 0};
}

static struct ia64_pal_retval pal_halt_info(struct kvm_vcpu *vcpu)
{
unsigned long in0, in1, in2, in3;
long status;
unsigned long res = 1000UL | (1000UL << 16) | (10UL << 32)
| (1UL << 61) | (1UL << 60);

kvm_get_pal_call_data(vcpu, &in0, &in1, &in2, &in3);
if (in1) {
memcpy((void *)in1, &res, sizeof(res));
status = 0;
} else{
status = PAL_STATUS_EINVAL;
printk(KERN_WARNING"Invalid parameters "
"for PAL call:0x%lx!\n", in0);
}

return (struct ia64_pal_retval){status, 0, 0, 0};
}

static struct ia64_pal_retval pal_mem_attrib(struct kvm_vcpu *vcpu)
{
unsigned long r9;
long status;

status = ia64_pal_mem_attrib(&r9);

return (struct ia64_pal_retval){status, r9, 0, 0};
}

static void remote_pal_prefetch_visibility(void *v)
{
s64 trans_type = (s64)v;
ia64_pal_prefetch_visibility(trans_type);
}

static struct ia64_pal_retval pal_prefetch_visibility(struct kvm_vcpu *vcpu)
{
struct ia64_pal_retval result = {0, 0, 0, 0};
unsigned long in0, in1, in2, in3;
kvm_get_pal_call_data(vcpu, &in0, &in1, &in2, &in3);
result.status = ia64_pal_prefetch_visibility(in1);
if (result.status == 0) {
/* Must be performed on all remote processors
in the coherence domain. */
smp_call_function(remote_pal_prefetch_visibility,
(void *)in1, 1);
/* Unnecessary on remote processor for other vcpus!*/
result.status = 1;
}
return result;
}

static void remote_pal_mc_drain(void *v)
{
ia64_pal_mc_drain();
}

static struct ia64_pal_retval pal_get_brand_info(struct kvm_vcpu *vcpu)
{
struct ia64_pal_retval result = {0, 0, 0, 0};
unsigned long in0, in1, in2, in3;

kvm_get_pal_call_data(vcpu, &in0, &in1, &in2, &in3);

if (in1 == 0 && in2) {
char brand_info[128];
result.status = ia64_pal_get_brand_info(brand_info);
if (result.status == PAL_STATUS_SUCCESS)
memcpy((void *)in2, brand_info, 128);
} else {
result.status = PAL_STATUS_REQUIRES_MEMORY;
printk(KERN_WARNING"Invalid parameters for "
"PAL call:0x%lx!\n", in0);
}

return result;
}

int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
{

Expand All @@ -300,14 +418,22 @@ int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
int ret = 1;

gr28 = kvm_get_pal_call_index(vcpu);
/*printk("pal_call index:%lx\n",gr28);*/
switch (gr28) {
case PAL_CACHE_FLUSH:
result = pal_cache_flush(vcpu);
break;
case PAL_MEM_ATTRIB:
result = pal_mem_attrib(vcpu);
break;
case PAL_CACHE_SUMMARY:
result = pal_cache_summary(vcpu);
break;
case PAL_PERF_MON_INFO:
result = pal_perf_mon_info(vcpu);
break;
case PAL_HALT_INFO:
result = pal_halt_info(vcpu);
break;
case PAL_HALT_LIGHT:
{
INIT_PAL_STATUS_SUCCESS(result);
Expand All @@ -317,6 +443,16 @@ int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
}
break;

case PAL_PREFETCH_VISIBILITY:
result = pal_prefetch_visibility(vcpu);
break;
case PAL_MC_DRAIN:
result.status = ia64_pal_mc_drain();
/* FIXME: All vcpus likely call PAL_MC_DRAIN.
That causes the congestion. */
smp_call_function(remote_pal_mc_drain, NULL, 1);
break;

case PAL_FREQ_RATIOS:
result = pal_freq_ratios(vcpu);
break;
Expand Down Expand Up @@ -346,6 +482,9 @@ int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
INIT_PAL_STATUS_SUCCESS(result);
result.v1 = (1L << 32) | 1L;
break;
case PAL_REGISTER_INFO:
result = pal_register_info(vcpu);
break;
case PAL_VM_PAGE_SIZE:
result.status = ia64_pal_vm_page_size(&result.v0,
&result.v1);
Expand All @@ -365,12 +504,18 @@ int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
result.status = ia64_pal_version(
(pal_version_u_t *)&result.v0,
(pal_version_u_t *)&result.v1);

break;
case PAL_FIXED_ADDR:
result.status = PAL_STATUS_SUCCESS;
result.v0 = vcpu->vcpu_id;
break;
case PAL_BRAND_INFO:
result = pal_get_brand_info(vcpu);
break;
case PAL_GET_PSTATE:
case PAL_CACHE_SHARED_INFO:
INIT_PAL_STATUS_UNIMPLEMENTED(result);
break;
default:
INIT_PAL_STATUS_UNIMPLEMENTED(result);
printk(KERN_WARNING"kvm: Unsupported pal call,"
Expand Down
8 changes: 4 additions & 4 deletions arch/ia64/kvm/process.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -607,7 +607,7 @@ static void set_pal_call_data(struct kvm_vcpu *vcpu)
p->exit_reason = EXIT_REASON_PAL_CALL;
}

static void set_pal_call_result(struct kvm_vcpu *vcpu)
static void get_pal_call_result(struct kvm_vcpu *vcpu)
{
struct exit_ctl_data *p = &vcpu->arch.exit_data;

Expand Down Expand Up @@ -635,7 +635,7 @@ static void set_sal_call_data(struct kvm_vcpu *vcpu)
p->exit_reason = EXIT_REASON_SAL_CALL;
}

static void set_sal_call_result(struct kvm_vcpu *vcpu)
static void get_sal_call_result(struct kvm_vcpu *vcpu)
{
struct exit_ctl_data *p = &vcpu->arch.exit_data;

Expand All @@ -658,13 +658,13 @@ void kvm_ia64_handle_break(unsigned long ifa, struct kvm_pt_regs *regs,
if (iim == DOMN_PAL_REQUEST) {
set_pal_call_data(v);
vmm_transition(v);
set_pal_call_result(v);
get_pal_call_result(v);
vcpu_increment_iip(v);
return;
} else if (iim == DOMN_SAL_REQUEST) {
set_sal_call_data(v);
vmm_transition(v);
set_sal_call_result(v);
get_sal_call_result(v);
vcpu_increment_iip(v);
return;
}
Expand Down

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