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Subject[PATCH 03/30] KVM: ia64: Implement some pal calls needed for windows 2008
Date
From: Xiantao Zhang <xiantao.zhang@intel.com>

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>
---
arch/ia64/kvm/kvm_fw.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++-
arch/ia64/kvm/process.c | 8 +-
2 files changed, 152 insertions(+), 7 deletions(-)
diff --git a/arch/ia64/kvm/kvm_fw.c b/arch/ia64/kvm/kvm_fw.c
index cb7600b..a8ae52e 100644
--- a/arch/ia64/kvm/kvm_fw.c
+++ b/arch/ia64/kvm/kvm_fw.c
@@ -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)
{

@@ -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;
}
@@ -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)
{

@@ -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);
@@ -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;
@@ -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);
@@ -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,"
diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c
index 0e727ce..b1dc809 100644
--- a/arch/ia64/kvm/process.c
+++ b/arch/ia64/kvm/process.c
@@ -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;

@@ -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;

@@ -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;
}
--
1.6.0.6


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